Entomopathogen
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Ocorrência de baculovirus em lagartas de Perigonia lusca (Fabr.) (Lep., Sphingidae) no Brasil.
2002
Neotropical Entomology. Publicado em: 2011
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2. Influência da qualidade de diferentes tipos de arroz e inibidores de proteinases no rendimento e na virulência de conídios do fungo entomopatogênico Metarhizium anisopliae (Mestch.) Sorokin (Ascomycota: Hypocreales) / Influence of quality of different types of rice and proteinase inhibitors on yield and virulence of conidia of the entomopathogenic fungus Metarhizium anisopliae (Mestch.) Sorokin (Ascomycota: Hypocreales)
In order to optimize the production process of Metarhizium anisopliae, the present study aimed to determine the effects of soybean proteinase inhibitors on growth, sporulation and virulence of the fungus and to compare yield, viability and virulence of M. anisopliae conidia produced in different types of rice and additives. The addition of 5 g.L-1 of semi-pu
Publicado em: 2010
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3. Aspectos biológicos de Neozygites floridana (Weiser &Muma) (Zygomycetes : Entomophthorales) e dinâmica populacional deTetranychus evansi Baker &Prictchard (Acari : Tetranychidae) e seus inimigos naturais em Solanum americanum Mill / Biological aspects of Neozygites floridana (Weiser &Muma) (Zygomycetes: Entomophorales) and population dynamics of Tetranychus evansi Baker &Pritchard (Acari: Tetranychidae) and their natural enemies in Solanum americanum Mill.
Neozygites floridana (Weiser &Muma) (Zygomycetes: Entomophthorales) infects several species of Tetranychidae in different locations around the world. In Brazil, N. floridana was reported in Tetranychus evansi Baker &Pritchard and Tetranychus urticae Koch. Disease caused by this pathogen on tetranychids indicates its potential in biological control programs.
Publicado em: 2009
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4. Seleção de isolados de Bacillus thuringiensis BERLINER para Tetranychus urticae KOCH / Screening of Bacillus thuringiensis BERLINER against Tetranychus urticae KOCH.
A cultura do mamão tem grande importância econômica para o Brasil, sendo o maior produtor mundial, com área colhida de 36.650 hectares e 24% da produção mundial, e, para o Espírito Santo, segundo maior produtor, com 39,7% do total nacional, e responsável por 74% na exportação. O ataque de pragas nessa cultura pode reduzir consideravelmente a produ�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/12/2008
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5. Efeitos de inibidores de proteinases de soja em organismos não-alvo associados à cultura da cana-de-açúcar / Effects of soybean proteases inhibitors on non-target organisms associated to sugarcane
Genes of plants expressing insect proteinase inhibitors have been introduced into plants for pest control. Proteases inhibitors are present in plant tissues, mainly in seeds, and act in response to predators and pathogens. The Bowman-Birk type and Kunitz type of serine proteases inhibitors (PI) from soybean seeds are been used to increase resistance of sugar
Publicado em: 2008
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6. Control of Mahanarva frimbriolata (Stål, 1854) (Hemiptera: Cercopidae) in two variety of sugarcane, in the state of Alagoas / Controle de Mahanarva frimbriolata (Stål, 1854) (Hemiptera: Cercopidae) em duas variedades de cana-de-açúcar, no estado de Alagoas
Apesar da facilidade de adaptação ao clima do Brasil, a cultura da cana-de-açúcar, Saccharum officinarum L. (Poaceae), enfrenta uma série de problemas fitossanitários, que geram prejuízos para os produtores, destacando-se a cigarrinha-da-raiz, Mahanarva fimbriolata (Stål, 1854) (Hemiptera: Cercopidae), como uma das principais pragas não só em Alago
Publicado em: 2007
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7. Genetic variation in the cuticle-degrading protease activity of the entomopathogen Metarhizium flavoviride
Extracellular proteases have been shown to be factors of virulence in fungal entomopathogenicity. We examined the production of the cuticle-degrading extracellular proteases chymoelastase (Pr1) and trypsin (Pr2) in isolates of the fungus Metarhizium flavoviride. Fungal growth was in a mineral medium (MM) containing nitrate, and in MM supplemented with either
Genetics and Molecular Biology. Publicado em: 2002
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8. Analise do efeito da radiação de microondas sobre Anagasta Kuhniella Zeller (1879) (Lepidoptera: Pyralidae) e seus dois agentes de controle biologico, Bracon hebertor (Say, 1836) (Hymenoptera: Braconidae) e Bacillus thuringiensis var. kurstaki (H:3a3b)
The application of Integrated Pest Management (IPM) means the utilization of efficient control methods which are ecologically safe and economicaly viable. Therefore, it is extremaly important to gather more information about the possible interactions between the different control agents, aimimg to optimize such a method. Microwaves (300 a 300.000 MHz), as we
Publicado em: 1998
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9. Nonsusceptibility of Lizards Exposed to the Entomopathogen Bacillus sphaericus
Tropical and subtropical lizards of the genus Anolis were exposed to Bacillus sphaericus Neide strain 1593-4, which has been proposed as a safe entomopathogen specific for mosquitoes. No deleterious effects were observed in lizards exposed to live bacteria through intraperitoneal injection or aerosol spray. Bacteria were lost quickly from lizard livers but w
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10. Identification, Characterization, and Regulation of a Cluster of Genes Involved in Carbapenem Biosynthesis in Photorhabdus luminescens
The luminescent entomopathogenic bacterium Photorhabdus luminescens produces several yet-uncharacterized broad-spectrum antibiotics. We report the identification and characterization of a cluster of eight genes (named cpmA to cpmH) responsible for the production of a carbapenem-like antibiotic in strain TT01 of P. luminescens. The cpm cluster differs in seve
American Society for Microbiology.
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11. A single Photorhabdus gene, makes caterpillars floppy (mcf), allows Escherichia coli to persist within and kill insects
Photorhabdus luminescens, a bacterium with alternate pathogenic and symbiotic phases of its lifestyle, represents a source of novel genes associated with both virulence and symbiosis. This entomopathogen lives in a “symbiosis of pathogens” with nematodes that invade insects. Thus the bacteria are symbiotic with entomopathogenic nematodes but become patho
National Academy of Sciences.
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12. The insect endosymbiont Sodalis glossinidius utilizes a type III secretion system for cell invasion
Sodalis glossinidius is a maternally transmitted secondary endosymbiont residing intracellularly in tissues of the tsetse flies, Glossina spp. In this study, we have used Tn5 mutagenesis and a negative selection procedure to derive a S. glossinidius mutant that is incapable of invading insect cells in vitro and is aposymbiotic when microinjected into t
The National Academy of Sciences.