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Tillman P. Glynn, Cottrell Ted E., and Buntin G. David
- The Florida Entomologist. 102(1):222-226
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Michael E. Sparks, Raman Bansal, Joshua B. Benoit, Michael B. Blackburn, Hsu Chao, Mengyao Chen, Sammy Cheng, Christopher Childers, Huyen Dinh, Harsha Vardhan Doddapaneni, Shannon Dugan, Elena N. Elpidina, David W. Farrow, Markus Friedrich, Richard A. Gibbs, Brantley Hall, Yi Han, Richard W. Hardy, Christopher J. Holmes, Daniel S. T. Hughes, Panagiotis Ioannidis, Alys M. Cheatle Jarvela, J. Spencer Johnston, Jeffery W. Jones, Brent A. Kronmiller, Faith Kung, Sandra L. Lee, Alexander G. Martynov, Patrick Masterson, Florian Maumus, Monica Munoz-Torres, Shwetha C. Murali, Terence D. Murphy, Donna M. Muzny, David R. Nelson, Brenda Oppert, Kristen A. Panfilio, Débora Pires Paula, Leslie Pick, Monica F. Poelchau, Jiaxin Qu, Katie Reding, Joshua H. Rhoades, Adelaide Rhodes, Stephen Richards, Rose Richter, Hugh M. Robertson, Andrew J. Rosendale, Zhijian Jake Tu, Arun S. Velamuri, Robert M. Waterhouse, Matthew T. Weirauch, Jackson T. Wells, John H. Werren, Kim C. Worley, Evgeny M. Zdobnov, and Dawn E. Gundersen-Rindal
- BMC Genomics, Vol 21, Iss 1, Pp 1-26 (2020)
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Brown marmorated stink bug genome, Pentatomid genomics, polyphagy, chemoreceptors, odorant binding proteins, opsins, Biotechnology, TP248.13-248.65, Genetics, and QH426-470
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Abstract Background Halyomorpha halys (Stål), the brown marmorated stink bug, is a highly invasive insect species due in part to its exceptionally high levels of polyphagy. This species is also a nuisance due to overwintering in human-made structures. It has caused significant agricultural losses in recent years along the Atlantic seaboard of North America and in continental Europe. Genomic resources will assist with determining the molecular basis for this species’ feeding and habitat traits, defining potential targets for pest management strategies. Results Analysis of the 1.15-Gb draft genome assembly has identified a wide variety of genetic elements underpinning the biological characteristics of this formidable pest species, encompassing the roles of sensory functions, digestion, immunity, detoxification and development, all of which likely support H. halys’ capacity for invasiveness. Many of the genes identified herein have potential for biomolecular pesticide applications. Conclusions Availability of the H. halys genome sequence will be useful for the development of environmentally friendly biomolecular pesticides to be applied in concert with more traditional, synthetic chemical-based controls.
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Broglio, Sônia M. F., Dias-Pini, Nivia da S., Costa, Luiz A. A., and Lemos, Eurico E. P.
- Revista Brasileira de Entomologia. March 2012 56(1):122-124
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ENTOMOLOGY, Custard apple tree, insect morphology, lace bug, taxonomy, Fruta-do-conde, morfologia de inseto, percevejo-de-renda, and taxonomia
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First report and morphological redescription of Teleonemia morio (Stål) (Hemiptera, Tingidae) in Annona squamosa L. (Annonaceae) in Brazil. This is the first report of a severe attack of Teleonemia morio (Stål, 1855) (Hemiptera, Heteroptera, Tingidae) on Annona squamosa L. (custard apple), causing up to 80% of losses of infested trees. In order to facilitate the identification of this insect pest, the adult female of T. morio is redescribed based on specimens collected in Palmeira dos Índios, Alagoas, Brazil.
Primeiro registro e redescrição morfológica de Teleonemia morio (Stål) (Hemiptera, Tingidae) em Annona squamosa L. (Annonaceae) no Brazil. Este é o primeiro registro de um ataque severo de Teleonemia morio (Stål, 1855) (Hemiptera, Heteroptera, Tingidae) em árvores de Annona squamosa L. (pinheira ou fruta-do-conde), resultando em perdas de aproximadamente 80% das plantas infestadas. Com o objetivo de facilitar a identificação deste inseto-praga, foi feita a redescrição da fêmea adulta de T. morio com base em espécimes coletados em Palmeira dos Índios, Alagoas, Brasil.
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Dinardo-Miranda, Leila L., Coelho, Álvaro L., and Ferreira, José M.G.
- Neotropical Entomology. February 2004 33(1):91-98
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ENTOMOLOGY, Root froghopper, damage, chemical control, Saccharum, Cigarrinha da raiz, danos, and controle químico
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Com o objetivo de avaliar a influência da época de aplicação e das doses de inseticidas no controle da cigarrinha das raízes, Mahanarva fimbriolata (Stål), na qualidade e na produtividade da cana-de-açúcar, foram conduzidos três experimentos, em condições de campo. No primeiro ensaio, os melhores resultados de controle foram obtidos com aldicarbe 150G 10 kg/ha e carbofuram 100G 25 kg/ha, aplicados em novembro. Quando aplicados em dezembro ou janeiro, a eficiência dos inseticidas, especialmente do tiametoxam 250WG 1 kg/ha, diminuiu sensivelmente, provavelmente porque o grande volume de chuvas ocorridas após as aplicações contribuíram para a lixiviação dos produtos, diminuindo a absorção deles pelas raízes. Nos outros dois ensaios, nos quais os inseticidas aldicarbe 150G, carbofuram 100G e tiametoxam 250WG foram aplicados em dezembro, nas doses de 10, 40 e 1 kg/ha, respectivamente, ou em janeiro, em doses 40% menores, os melhores resultados de controle e de produtividade de colmos e de açúcar foram observados nas aplicações feitas em dezembro. O controle de cigarrinha realizado até dezembro resultou em incrementos significativos de produtividade. Embora alguns inseticidas tenham reduzido as populações da cigarrinha, quando aplicados em janeiro e em doses menores, não ocorreram incrementos significativos de produtividade, possivelmente porque a praga já havia danificado irreversivelmente a cultura.
The objective of this work was to study the effect of insecticides on sugarcane root froghopper mortality and on the technological quality and yield of sugarcane, when they were applied at different times and rates during the froghopper infestation period. Three experiments were carried out under field conditions. Best control was obtained with aldicarb 150G 10kg/ha and carbofuran 100G 25kg/ha, applied in November. When the insecticides were applied in December or January, the efficiency was reduced, especially that of thiamethoxam, probably because the great rain volume after applications contributed to the insecticides leaching, reducing the absorption by the roots. The insecticides aldicarb 150G, carbofuran 100G and thiamethoxam 250WG, applied in December, produced the best insect control, higher stalk production and higher sugar yields, in comparison with aplication in January at 40% lower doses. The control of the the root froghopper, made untill December, resulted in yield increase. When the insecticides were applied in January at lower doses, some of them reduced pest infestations, but did not contribute to increase yield, probably because the root froghopper had already damaged the plants irreversibly.
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Assis Jr., Sebastião L., Zanuncio, Teresinha V., Santos, Germi P., and Zanuncio, José C.
- Anais da Sociedade Entomológica do Brasil. June 1998 27(2):245-253
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AGRICULTURE, MULTIDISCIPLINARY, Insecta, Hemiptera, Asopinae, biological control, phytophagy, life table, controle biológico, fitofagia, and tabela de vida
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Avaliou-se o efeito da alimentação suplementar de folhas de Eucalyptus urophylla, no desenvolvimento e reprodução de Supputius cincticeps (Stal) em laboratório. S. cincticeps foi alimentado com Tenebrio molitor (L.) (Coleoptera: Tenebrionidae) ou T. molitor mais mudas de E. urophylla. A inclusão da planta na alimentação de S. cincticeps, aumentou sua taxa líquida de reprodução Ro (de 7,15 para 24,05), a razão infinitesimal rm (de 0,034 para 0,052), e a razão finita de aumento populacional 1 (de 1,035 para 1,053), em relação ao uso isolado da presa. Conseguiu-se, ainda, aumentar os índices de sobrevivência, a longevidade e a expectativa de vida média para metade da população (ex50), sendo 50,8 e 64,9 dias para os percevejos alimentados com presa e com presa e planta, respectivamente. O predador S. cincticeps apresentou hábitos alimentares que incluem fitofagia e a inclusão da planta na sua dieta, foi vantajosa para a sua criação massal.
The effect of supplementary feeding of Supputius cincticeps (Stal) on Eucalyptus urophylla leaves was evaluated in the laboratory. S. cincticeps was fed with Tenebrio molitor (L.) (Coleoptera: Tenebrionidae) larvae or T. molitor larvae plus E. urophylla. The inclusion of this plant for S. cincticeps feeding increased its net reproductive rate (Ro) from 7.15 to 24.05, its infinitesimal ratio (rm) from 0.034 to 0.052, and the finite population increase (1) from 1.035 to 1.053, compared to feeding only with the prey. S. cincticeps fed both plant and prey showed higher survival rate, longevity, and life span for half of the population (ex50), which was 50.8 and 64.9 for bugs fed the prey, and prey and plant, respectively. The inclusion of the plant also increased the reproduction rate of S. cincticeps, thus being recommended for mass rearing of this predator.
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DINARDO-MIRANDA, LEILA L., GARCIA, VALTER, and PARAZZI, VANDERLEI J.
- Neotropical Entomology. October 2002 31(4):609-614
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ENTOMOLOGY, Root froghopper, Pratylenchus zeae, Meloidogyne javanica, Saccharum, and Cigarrinha das raízes
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Com o objetivo de avaliar a eficiência de inseticidas no controle da cigarrinha das raízes e de nematóides fitoparasitos e seus reflexos sobre a qualidade tecnológica e a produtividade da cana-de-açúcar, conduziram-se dois experimentos, na região canavieira de Piracicaba, SP, aplicando-se diversos inseticidas em uma ou em duas ocasiões, ao longo do período de ataque da cigarrinha. Aldicarbe 150G 12 kg/ha, tiametoxam 10GR 30 kg/ha e carbofuram 100G 40 kg/ha, aplicados no início do período de infestação da cigarrinha (outubro) e aldicarbe 150G 6+6 kg/ha e tiametoxam 10GR 15+15 kg/ha, com a primeira metade da dose aplicada no início do período de infestação (outubro) e a outra no meio do período (janeiro), foram os produtos mais eficientes no controle da cigarrinha-das-raízes, contribuindo para incrementos na pol%cana, na pureza do caldo e na produtividade de açúcar (até 6,12 t ATR/ha). No experimento 1 foram observadas populações elevadas de Pratylenchus zeae Grahan, sendo o aldicarbe 150G a 12 e 6+6 kg/ha e o carbofuram 100G a 40 kg/ha os nematicidas mais eficientes, reduzindo as populações do nematóide pelo menos até três meses após aplicação. No experimento 2 foram detectadas populações baixas de P. zeae e Meloidogyne javanica Grahan foi encontrada nas áreas do ensaio 1 e P. zeae e Meloidogyne javanica (Treub) Chitwood. O parcelamento da dose dos inseticidas para aplicação em duas épocas não resultou em incrementos significativos de produtividade, quando comparada com os resultados obtidos com uma só aplicação.
The objective of this work was to study the effect of insecticides on sugarcane root froghopper and fitoparasitic nematodes populations and on technological quality and sugarcane yield. Two experiments were carried out, under field conditions, and different insecticides were applied once or twice during the froghopper infestation period. The most efficient compounds on root froghopper control were aldicarb 150G 12 kg/ha, thiamethoxan 10GR 30 kg/ha, carbofuran 100G 40 kg/ha, applied only in the begining of pest infestation period (October) and aldicarb 150G 6+6 kg/ha and thiamethoxan 10GR 15+15 kg/ha, in which a half dose was applied in the begining (October) and the other half was applied in the middle of pest infestation period (January). In experiment 1, Pratylenchus zeae Grahan was detected in high populations and aldicarb 150G at 12 and at 6+6 kg/ha and carbofuran 100G at 40 kg/ha were the most efficient nematicides, decreasing nematode populations at least untill three months after application. Low populations of P. zeae and Meloidogyne javanica (Treub) Chitwood were detected in experiment 2. The insecticides application resulted in significative increase of sugar content in the stalks, juice purity, and stalks and sugar yields (until 6,12 ton of recoverable sugar per ha), but the split dose applied in two periods did not result in significative increase of yield when compared to only one application.
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Sônia M. F. Broglio, Nivia da S. Dias-Pini, Luiz A. A. Costa, and Eurico E. P. Lemos
- Revista Brasileira de Entomologia, Vol 56, Iss 1, Pp 122-124 (2012)
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Fruta-do-conde, morfologia de inseto, percevejo-de-renda, taxonomia, Custard apple tree, insect morphology, lace bug, taxonomy, Zoology, and QL1-991
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First report and morphological redescription of Teleonemia morio (Stål) (Hemiptera, Tingidae) in Annona squamosa L. (Annonaceae) in Brazil. This is the first report of a severe attack of Teleonemia morio (Stål, 1855) (Hemiptera, Heteroptera, Tingidae) on Annona squamosa L. (custard apple), causing up to 80% of losses of infested trees. In order to facilitate the identification of this insect pest, the adult female of T. morio is redescribed based on specimens collected in Palmeira dos Índios, Alagoas, Brazil.Primeiro registro e redescrição morfológica de Teleonemia morio (Stål) (Hemiptera, Tingidae) em Annona squamosa L. (Annonaceae) no Brazil. Este é o primeiro registro de um ataque severo de Teleonemia morio (Stål, 1855) (Hemiptera, Heteroptera, Tingidae) em árvores de Annona squamosa L. (pinheira ou fruta-do-conde), resultando em perdas de aproximadamente 80% das plantas infestadas. Com o objetivo de facilitar a identificação deste inseto-praga, foi feita a redescrição da fêmea adulta de T. morio com base em espécimes coletados em Palmeira dos Índios, Alagoas, Brasil.
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Dinardo-Miranda, Leila L., Ferreira, José M.G., and Carvalho, Paulo A.M.
- Neotropical Entomology. March 2001 30(1):145-149
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ENTOMOLOGY, Insecta, root froghopper, Saccharum sp, and cigarrinha das raízes
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O efeito da época de colheita e dos genótipos de cana-de-açúcar sobre a infestação da cigarrinha das raízes, Mahanarva fimbriolata (Stal), foi avaliado em um campo experimental, contendo 18 genótipos e no qual as colheitas foram efetuadas em três épocas: maio, agosto e outubro. As maiores infestações das cigarrinhas ocorreram no campo em que a cana-de-açúcar foi colhida em maio, provavelmente porque durante o verão, quando o ataque das cigarrinhas das raízes foi mais intenso, a cultura colhida em maio apresentou plantas maiores que aquelas colhidas em agosto ou outubro, o que contribuiu para o melhor sombreamento do terreno e, consequentemente, maior umidade no solo, favorecendo significativamente o desenvolvimento da praga. Entre os genótipos avaliados, IAC83-2396, SP80-1842 e RB825336 foram severamente atacados, sendo considerados os preferidos pela praga. As cultivares RB72454, RB835486 e IAC86-2210 apresentaram níveis populacionais de M. fimbriolata um pouco menores que aqueles encontrados nos genótipos anteriores, porém também elevados. Entre os genótipos menos infestados pela cigarrinha das raízes podem ser citados IAC82-3092, IAC87-3187 e PO86-1107.
The objective of this work was to study the effect of harvest period and sugarcane genotypes on Mahanarva fimbriolata (Stal) infestation. Under field conditions, 18 genotypes were harvested in three periods: May, August and October. The highest root froghoppers populations were obtained in the field were sugarcane was harvested in may, probably because, during summer, when the root froghopper attack is more intensive, the plants were more grown. In consequence, the soil was more shaded and humid, favouring the root froghopper development. The genotypes IAC83-2396, SP80-1842 and RB825336 were severely attacked and were preferred by the pest. The cultivars RB72454, RB835486 e IAC86-2210 also presented high populational levels. IAC82-3092, IAC87-3197 and PO86-1107 presented the smallest pest infestations.
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9. Morphology of the spermatheca of Triatoma lecticularia (Hemiptera: Reduviidae) (Stal, 1859) [2018]
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M. F. Monteiro, L. C. O. Lisboa, T. M. Carvalho-Costa, J. C. Nevoa, C. J. F. Oliveira, J. E. Serrão, and E. A. Souza
- Brazilian Journal of Biology, Iss 0 (2018)
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Triatominae, morfologia, secreção, espermatozoides, Science, Biology (General), QH301-705.5, Zoology, QL1-991, Botany, and QK1-989
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Abstract Triatoma lecticularia (Hemiptera: Reduviidae) (Stal, 1859) is a potential vector of Chagas’s disease and the comprehension of its reproductive biology is an important tool to control this insect. In the reproductive tract of female insects, the spermatheca plays a crucial role storing male spermatozoa after mating. Whithin insects the spermatheca shows a wide morphological diversity and the analysis of this characteristic can contribute to understand the reproductive biology of the species. This study describes the histology and histochemistry of the spermatheca of T. lecticularia. Females have a pair of elongated spermathecal reservoirs without associated accessory gland. The reservoir opens into the common oviduct via a narrow muscular duct. The reservoir epithelium has single layer of columnar secretory cells. The control of the release of spermatozoa from the spermatheca occurs via the muscular duct. The anatomical features of the spermatheca of T. lecticularia resemble those described of other Reduviidae. However, the histological and histochemical features of spermatheca observed in T. lecticularia were important to explain the maintenance of the viability of the spermatozoa stored.
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Mendonça, Fernando A. C., Barreto, Marliton R., Assis Jr., Sebastião, and Marsaro Jr., Alberto L.
- Anais da Sociedade Entomológica do Brasil. April 1997 26(1):209-212
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AGRICULTURE, MULTIDISCIPLINARY, Insecta, Asopinae, mating, and biological control
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11. Morphology of the spermatheca of Triatoma lecticularia (Hemiptera: Reduviidae) (Stal, 1859). [2019]
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Monteiro, M. F., Lisboa, L. C. O., Carvalho-Costa, T. M., Nevoa, J. C., Oliveira, C. J. F., Serrão, J. E., and Souza, E. A.
- Brazilian Journal of Biology; Jan-Mar2019, Vol. 79 Issue 1, p144-148, 5p
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MORPHOLOGY, SPERMATHECA, TRIATOMA, SPERMATOZOA, and EPITHELIUM
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Copyright of Brazilian Journal of Biology is the property of Instituto Internacional de Ecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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POCCO, M. A. R. T. I. N. A. E., GUZMÁN, N. O. E. L. I. A., PLISCHUK, S. A. N. T. I. A. G. O., CONFALONIERI, V. I. V. I. A. N. A., LANGE, C. A. R. L. O. S. E., and CIGLIANO, MARÍA M. A. R. T. A.
Systematic Entomology . Apr2018, Vol. 43 Issue 2, p290-307. 18p.
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BIODIVERSITY, GRASSHOPPER behavior, BIOMES, PHYLOGENY, and SPECIES distribution
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Abstract: The open vegetation biomes, within the limits of the Chacoan subregion, occur along a diagonal in eastern South America covering a large range of environmental conditions. In order to contribute to the knowledge on the biodiversity of these open biomes, we analysed the phylogenetic relationships of the grasshopper genus Zoniopoda to the remaining South American Romaleinae, and examined the biogeographical patterns of diversification of the genus. The study is based on morphological and molecular (COI and H3) evidence, including 12 species of Zoniopoda and 17 species of four tribes of South American Romaleinae. We describe a new species of Zoniopoda, and test its taxonomic placement within the group. Results of our phylogenetic analyses recovered Zoniopoda as a monophyletic group with high support values. According to the dispersion–vicariance analysis, the ancestor of Zoniopoda may have been distributed in an area corresponding to the Chacoan and Cerrado provinces. A vicariant event, that could be explained by the uplift of the Brazilian Plateau and the subsidence of the Chaco, is hypothesized to have occurred splitting the ancestral distribution of Zoniopoda, resulting in the independent evolution of the Tarsata group within the Cerrado and the Iheringi group in the Chacoan subregion. This published work has been registered in ZooBank, http://zoobank.org/urn:lsid:zoobank.org:act:FCFB4C5D-1741-46F1-8E25-B37ED2B9D872. [ABSTRACT FROM AUTHOR]
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13. Molecular Mechanism of Flocculation Self-Recognition in Yeast and Its Role in Mating and Survival [2015]
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Goossens, K. V. Y., Ielasi, F. S., Nookaew, Intawat, Stals, I., Alonso-Sarduy, L., Daenen, L., Van Mulders, S. E., Stassen, C., van Eijsden, R. G. E., Siewers, Verena, Delvaux, F. R., Kasas, S., Nielsen, Jens B, Devreese, B., and Willaert, R. G.
- mBio. 6(2)
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Mikrobiologi and Microbiology
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We studied the flocculation mechanism at the molecular level by determining the atomic structures of N-Flo1p and N-Lg-Flo1p in complex with their ligands. We show that they have similar ligand binding mechanisms but distinct carbohydrate specificities and affinities, which are determined by the compactness of the binding site. We characterized the glycans of Flo1p and their role in this binding process and demonstrate that glycan-glycan interactions significantly contribute to the cell-cell adhesion mechanism. Therefore, the extended flocculation mechanism is based on the self-interaction of Flo proteins and this interaction is established in two stages, involving both glycan-glycan and protein-glycan interactions. The crucial role of calcium in both types of interaction was demonstrated: Ca-2(+) takes part in the binding of the carbohydrate to the protein, and the glycans aggregate only in the presence of Ca-2(+). These results unify the generally accepted lectin hypothesis with the historically first-proposed "Ca-2(+)-bridge" hypothesis. Additionally, a new role of cell flocculation is demonstrated; i.e., flocculation is linked to cell conjugation and mating, and survival chances consequently increase significantly by spore formation and by introduction of genetic variability. The role of Flo1p in mating was demonstrated by showing that mating efficiency is increased when cells flocculate and by differential transcriptome analysis of flocculating versus nonflocculating cells in a low-shear environment (microgravity). The results show that a multicellular clump (floc) provides a uniquely organized multicellular ultrastructure that provides a suitable microenvironment to induce and perform cell conjugation and mating. IMPORTANCE Yeast cells can form multicellular clumps under adverse growth conditions that protect cells from harsh environmental stresses. The floc formation is based on the self-interaction of Flo proteins via an N-terminal PA14 lectin domain. We have focused on the flocculation mechanism and its role. We found that carbohydrate specificity and affinity are determined by the accessibility of the binding site of the Flo proteins where the external loops in the ligand-binding domains are involved in glycan recognition specificity. We demonstrated that, in addition to the Flo lectin-glycan interaction, glycan-glycan interactions also contribute significantly to cell-cell recognition and interaction. Additionally, we show that flocculation provides a uniquely organized multicellular ultrastructure that is suitable to induce and accomplish cell mating. Therefore, flocculation is an important mechanism to enhance long-term yeast survival.
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Madaleno, Leonardo L., Ravaneli, Gisele C., Presotti, Leandro E., Mutton, Miguel A., Fernandes, Odair A., and Mutton, Márcia J.R.
- Neotropical Entomology. February 2008 37(1):68-73
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ENTOMOLOGY, Spittlebug, insect-day, chemical control, Cigarrinha-das-raízes, inseto-dia, and controle químico
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Mahanarva fimbriolata (Stål) is an important pest in Latin America and causes significant reduction in sugarcane productivity. There is no information regarding the effect of this pest on the quality of cane juice used for sugar and alcohol production. This work aimed at evaluating the quality of sugarcane juice from plants attacked by spittlebugs. The experiment was arranged in a completely randomized design with 15 replications, and comprised two treatments: control and chemical treatment with thiamethoxam. An average of 9.2 ± 4.44 spittlebug nymphs m-1 were found in the plots prior to insecticide application. Nymphs were counted 18, 35, 55, and 82 days after the initial sampling (december/2003). During the mid growing season (July 2004), the juice was extracted from stalks and analyzed for Brix, Pol, RS, pH, fiber, purity, TRS, dextran, starch, and total phenolic compounds. Stalk yield was also measured. Chemical treatment was efficient in reducing spittlebug population, and elevated both stalk yield and juice pH. The accumulated infestation expressed as insect-days was significantly and negatively correlated to yield, Pol, pH, and purity. The concentration of phenolic compounds increased with pest infestation, while dextran and starch levels were not affected. The infestation of 2.4 and 7.3 nymphs m-1 day-1 caused reductions of 8.3% and 29.8% in yield; 1.9% and 5.8% in Pol; 0.4% and 1.1% in pH and 0.4% and 1.2% in purity, respectively, in comparison to areas where the pest population was extremely low (< 0.1 nymphs m-1).
Mahanarva fimbriolata (Stål) é considerada praga importante na América Latina por reduzir a produtividade de cana-de-açúcar. Há pouca informação sobre o efeito do inseto na qualidade da cana que será utilizada para produção de açúcar e álcool. Assim, objetivou-se avaliar a qualidade do caldo da cana de plantas atacadas pela cigarrinha-das-raízes. Adotou-se o delineamento experimental inteiramente casualizado com 15 repetições e dois tratamentos: testemunha e controle químico com tiametoxam. Nas parcelas experimentais foram encontradas em média 9,2 ± 4,44 ninfas m-1 em monitoramento inicial (dezembro/2003). As ninfas foram contadas aos 18, 35, 55, e 82 dias após a primeira contagem, sendo a infestação expressa em insetos-dia acumulados. Em julho de 2004, procedeu-se à colheita de colmos e extração do caldo, analisando-se o Brix, Pol, açúcares redutores, pH, fibra, pureza, açúcares redutores totais, dextrana, amido, compostos fenólicos totais e produtividade. O controle químico reduziu a população do inseto e elevou a produtividade de colmos e do pH do caldo. A infestação acumulada foi correlacionada significativa e negativamente com a produtividade, Pol, pH, e pureza. O teor de compostos fenólicos aumentou com a elevação da infestação, enquanto que os valores de dextrana e amido não foram alterados. Infestações de 2,4 e 7,3 ninfas m-1 dia-1 causaram reduções da ordem de 8,3% e 29,8% na produtividade; 1,9 e 5,8% na Pol; 0,4% e 1,1% no pH e 0,4% e 1,2% na pureza, respectivamente, em comparação com áreas de população baixa (< 0,1 ninfa m-1).
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Jirström, Karin, Rydén, Lisa, Anagnostaki, L, Nordenskjold, B, Stal, O, Thorstenson, S, Chebil, G, Jonsson, P-E, Fernö, Mårten, and Landberg, Göran
- Journal of Clinical Pathology. 58(11):1135-1142
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Medicin och hälsovetenskap, Klinisk medicin, Cancer och onkologi, Medical and Health Sciences, Clinical Medicine, and Cancer and Oncology
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Khan, Muhammad Musa, Huang, Qing, Wagan, Tufail Ahmed, Hua, Hongxia, Cai, Wanlun, and Zhao, Jing
- Journal of Asia-Pacific Entomology; Jun2020, Vol. 23 Issue 2, p269-276, 8p
- Abstract
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• Trans-2-dodecenol had no effect on behavior of Paederus fuscipes. • Trans-2-dodecenol showed high repellence against Nilaparvata lugens. • Trans-2-dodecenol had high attraction for Cyrtorhinus lividipennis. Plant essential oils (EOs) and a wide range of chemicals affect insect pests in many ways, such as via stimulatory, deterrent, toxic and hormonal effects. Three different compounds ((E)-β-caryophyllene (E-β-C), D-limonene (D-lime) and trans-2-dodecenol (T-2-D)) were tested against Nilaparvata lugens , Cyrtorhinus lividipennis and Paederus fuscipes , and their behavioral response was assessed. The results showed that on average, more N. lugens nymphs were repelled by E-β-C and T-2-D than by D-lime. More C. lividipennis nymphs were attracted to T-2-D and D-lime than to E-β-C. However, P. fuscipes displayed no significant response to the three chemical compounds. The results also demonstrated that T-2-D has exerted significant repellency against N. lugens and a significant attraction for C. lividipennis , while E-β-C and D-lime have no significant effect on any tested insect. T-2-D was selected and tested in a greenhouse under semi-field conditions, where the observations confirmed the results of the laboratory experiments. From the results, it can be concluded that T-2-D at a concentration of 0.06 g/L is an effective synthetic volatile chemical compound and is the strongest repellent of N. lugens and the strongest attractant for C. lividipennis. This synthetic chemical compound can be used as a pest management tool in rice agroecosystems. [ABSTRACT FROM AUTHOR]
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Scott A Thomson, Richard L Pyle, Shane T Ahyong, Miguel Alonso-Zarazaga, Joe Ammirati, Juan Francisco Araya, John S Ascher, Tracy Lynn Audisio, Valter M Azevedo-Santos, Nicolas Bailly, William J Baker, Michael Balke, Maxwell V L Barclay, Russell L Barrett, Ricardo C Benine, James R M Bickerstaff, Patrice Bouchard, Roger Bour, Thierry Bourgoin, Christopher B Boyko, Abraham S H Breure, Denis J Brothers, James W Byng, David Campbell, Luis M P Ceríaco, István Cernák, Pierfilippo Cerretti, Chih-Han Chang, Soowon Cho, Joshua M Copus, Mark J Costello, Andras Cseh, Csaba Csuzdi, Alastair Culham, Guillermo D'Elía, Cédric d'Udekem d'Acoz, Mikhail E Daneliya, René Dekker, Edward C Dickinson, Timothy A Dickinson, Peter Paul van Dijk, Klaas-Douwe B Dijkstra, Bálint Dima, Dmitry A Dmitriev, Leni Duistermaat, John P Dumbacher, Wolf L Eiserhardt, Torbjørn Ekrem, Neal L Evenhuis, Arnaud Faille, José L Fernández-Triana, Emile Fiesler, Mark Fishbein, Barry G Fordham, André V L Freitas, Natália R Friol, Uwe Fritz, Tobias Frøslev, Vicki A Funk, Stephen D Gaimari, Guilherme S T Garbino, André R S Garraffoni, József Geml, Anthony C Gill, Alan Gray, Felipe G Grazziotin, Penelope Greenslade, Eliécer E Gutiérrez, Mark S Harvey, Cornelis J Hazevoet, Kai He, Xiaolan He, Stephan Helfer, Kristofer M Helgen, Anneke H van Heteren, Francisco Hita Garcia, Norbert Holstein, Margit K Horváth, Peter H Hovenkamp, Wei Song Hwang, Jaakko Hyvönen, Melissa B Islam, John B Iverson, Michael A Ivie, Zeehan Jaafar, Morgan D Jackson, J Pablo Jayat, Norman F Johnson, Hinrich Kaiser, Bente B Klitgård, Dániel G Knapp, Jun-Ichi Kojima, Urmas Kõljalg, Jenő Kontschán, Frank-Thorsten Krell, Irmgard Krisai-Greilhuber, Sven Kullander, Leonardo Latella, John E Lattke, Valeria Lencioni, Gwilym P Lewis, Marcos G Lhano, Nathan K Lujan, Jolanda A Luksenburg, Jean Mariaux, Jader Marinho-Filho, Christopher J Marshall, Jason F Mate, Molly M McDonough, Ellinor Michel, Vitor F O Miranda, Mircea-Dan Mitroiu, Jesús Molinari, Scott Monks, Abigail J Moore, Ricardo Moratelli, Dávid Murányi, Takafumi Nakano, Svetlana Nikolaeva, John Noyes, Michael Ohl, Nora H Oleas, Thomas Orrell, Barna Páll-Gergely, Thomas Pape, Viktor Papp, Lynne R Parenti, David Patterson, Igor Ya Pavlinov, Ronald H Pine, Péter Poczai, Jefferson Prado, Divakaran Prathapan, Richard K Rabeler, John E Randall, Frank E Rheindt, Anders G J Rhodin, Sara M Rodríguez, D Christopher Rogers, Fabio de O Roque, Kevin C Rowe, Luis A Ruedas, Jorge Salazar-Bravo, Rodrigo B Salvador, George Sangster, Carlos E Sarmiento, Dmitry S Schigel, Stefan Schmidt, Frederick W Schueler, Hendrik Segers, Neil Snow, Pedro G B Souza-Dias, Riaan Stals, Soili Stenroos, R Douglas Stone, Charles F Sturm, Pavel Štys, Pablo Teta, Daniel C Thomas, Robert M Timm, Brian J Tindall, Jonathan A Todd, Dagmar Triebel, Antonio G Valdecasas, Alfredo Vizzini, Maria S Vorontsova, Jurriaan M de Vos, Philipp Wagner, Les Watling, Alan Weakley, Francisco Welter-Schultes, Daniel Whitmore, Nicholas Wilding, Kipling Will, Jason Williams, Karen Wilson, Judith E Winston, Wolfgang Wüster, Douglas Yanega, David K Yeates, Hussam Zaher, Guanyang Zhang, Zhi-Qiang Zhang, and Hong-Zhang Zhou
- PLoS Biology , Vol 16, Iss 3, p e2005075 (2018)
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Biology (General) and QH301-705.5
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A. G. Akeroyd, M. Aoki, A. Arhrib, L. Basso, I. F. Ginzburg, R. Guedes, J. Hernandez-Sanchez, K. Huitu, T. Hurth, M. Kadastik, S. Kanemura, K. Kannike, W. Khater, M. Krawczyk, F. Mahmoudi, S. Moretti, S. Najjari, P. Osland, G. M. Pruna, M. Purmohammadi, A. Racioppi, M. Raidal, R. Santos, P. Sharma, D. Sokołowska, O. Stål, K. Yagyu, and E. Yildirim
- European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-33 (2017)
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Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, and QC770-798
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Abstract The goal of this report is to summarize the current situation and discuss possible search strategies for charged scalars, in non-supersymmetric extensions of the Standard Model at the LHC. Such scalars appear in Multi-Higgs-Doublet models, in particular in the popular Two-Higgs-Doublet model, allowing for charged and additional neutral Higgs bosons. These models have the attractive property that electroweak precision observables are automatically in agreement with the Standard Model at the tree level. For the most popular version of this framework, Model II, a discovery of a charged Higgs boson remains challenging, since the parameter space is becoming very constrained, and the QCD background is very high. We also briefly comment on models with dark matter which constrain the corresponding charged scalars that occur in these models. The stakes of a possible discovery of an extended scalar sector are very high, and these searches should be pursued in all conceivable channels, at the LHC and at future colliders.
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Casper D. J. den Heijer, Christian J. P. A. Hoebe, Geneviève A. F. S. van Liere, Jan E. A. M. van Bergen, Jochen W. L. Cals, Frans S. Stals, and Nicole H. T. M. Dukers-Muijrers
- BMC Infectious Diseases, Vol 17, Iss 1, Pp 1-10 (2017)
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Sexually Transmitted Infection, Chlamydia Trachomatis, Patient Visit, Neisseria Gonorrhoeae, Social Economic Status, Infectious and parasitic diseases, and RC109-216
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Abstract Background Gonorrhoea, caused by Neisseria gonorrhoeae (NG), can cause reproductive morbidity, is increasingly becoming resistant to antibiotics and is frequently asymptomatic, which shows the essential role of NG test practice. In this study we wanted to compare NG diagnostic testing procedures between different STI care providers serving a defined geographic Dutch region (280,000 inhabitants). Methods Data on laboratory testing and diagnosis of urogenital and extragenital (i.e. anorectal and oropharyngeal) NG were retrieved from general practitioners (GPs), an STI clinic, and gynaecologists (2006–2010). Per provider, we assessed their contribution regarding the total number of tests performed and type of populations tested, the proportion of NG positives re-tested (3–12 months after treatment) and test-of-cure (TOC, within 3 months post treatment). Results Overall, 17,702 NG tests (48.7% STI clinic, 38.2% GPs, 13.1% gynaecologists) were performed during 15,458 patient visits. From this total number of tests, 2257 (12.7%) were extragenital, of which 99.4% were performed by the STI clinic. Men were mostly tested at the STI clinic (71%) and women by their GP (43%). NG positivity per visit was 1.6%; GP 1.9% (n = 111), STI clinic 1.7% (n = 131) and gynaecology 0.2% (n = 5). NG positivity was associated with Chlamydia trachomatis positivity (OR: 2.06, 95% confidence interval: 1.46–2.92). Per anatomical location, the proportion of NG positives re-tested were: urogenital 20.3% (n = 36), anorectal 43.6% (n = 17) and oropharyngeal 57.1% (n = 20). NG positivity among re-tests was 16.9%. Proportions of NG positives with TOC by anatomical location were: urogenital 10.2% (n = 18), anorectal 17.9% (n = 7) and oropharyngeal 17.1% (n = 6). Conclusions To achieve best practice in relation to NG testing, we recommend that: 1) GPs test at extragenital sites, especially men who have sex with men (MSM), 2) all care providers consider re-testing 3 to 12 months after NG diagnosis and 3) TOC is performed following oropharyngeal NG diagnosis in settings which provide services to higher-risk men and women (such as STI clinics).
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