Chitinase
Mostrando 1-12 de 338 artigos, teses e dissertações.
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1. Óleos essenciais no controle de Botrytis cinerea: influência na qualidade pós-colheita de uvas ‘Rubi’
Resumo Para que ocorra o controle de doenças na pós-colheita de uvas, são utilizados agroquímicos que, apesar de eficientes, podem causar problemas à saúde humana. Neste sentido, o presente trabalho tem o objetivo de verificar o potencial dos compostos voláteis presentes no óleo essencial de pitanga (OEP), guaçatonga (OEG) e melaleuca (OEM) no contr
Braz. J. Food Technol.. Publicado em: 17/10/2019
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2. Componentes bioquímicos e epidemiológicos associados à resistência do arroz à mancha parda
RESUMO A mancha parda (Bipolaris oryzae) é uma das mais importantes doenças foliares do arroz. Nesse estudo, alguns componentes de resistência e algumas variáveis bioquímicas amplamente conhecidas como mecanismos de defesa de plantas contra patógenos foram avaliadas em genótipos de arroz classificados, segundo SOSBAI, como moderadamente suscetível, m
Summa phytopathol.. Publicado em: 2019-03
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3. Improved antifungal activity of barley derived chitinase I gene that overexpress a 32 kDa recombinant chitinase in Escherichia coli host
Abstract Agricultural crops suffer many diseases, including fungal and bacterial infections, causing significant yield losses. The identification and characterisation of pathogenesis-related protein genes, such as chitinases, can lead to reduction in pathogen growth, thereby increasing tolerance against fungal pathogens. In the present study, the chitinase I
Braz. J. Microbiol.. Publicado em: 2018-06
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4. Alternative splicing originates different domain structure organization of Lutzomyia longipalpis chitinases
BACKGROUND The insect chitinase gene family is composed by more than 10 paralogs, which can codify proteins with different domain structures. In Lutzomyia longipalpis, the main vector of visceral leishmaniasis in Brazil, a chitinase cDNA from adult female insects was previously characterized. The predicted protein contains one catalytic domain and one chiti
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-02
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5. Enzymatic comparison and mortality of Beauveria bassiana against cabbage caterpillar Pieris brassicae LINN
Abstract Beauveria bassiana, an entomopathogenic fungus, is the alternative biocontrol agent exploited against major economic crop pests. Pieris brassicae L. is an emerging pest of the Brassicaceae family. Therefore, in the present study, fungal isolates of Beauveria bassiana, viz. MTCC 2028, MTCC 4495, MTCC 6291, and NBAII-11, were evaluated for their virul
Braz. J. Microbiol.. Publicado em: 2017-07
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6. A broad pH range and processive chitinase from a metagenome library
Chitinases are hydrolases that degrade chitin, a polymer of N-acetylglucosamine linked β(1-4) present in the exoskeleton of crustaceans, insects, nematodes and fungal cell walls. A metagenome fosmid library from a wastewater-contaminated soil was functionally screened for chitinase activity leading to the isolation and identification of a chitinase gene nam
Braz J Med Biol Res. Publicado em: 05/01/2017
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7. Thermostable chitinase from Cohnella sp. A01: isolation and product optimization
Abstract Twelve bacterial strains isolated from shrimp farming ponds were screened for their growth activity on chitin as the sole carbon source. The highly chitinolytic bacterial strain was detected by qualitative cup plate assay and tentatively identified to be Cohnella sp. A01 based on 16S rDNA sequencing and by matching the key morphological, physiologic
Braz. J. Microbiol.. Publicado em: 2016-12
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8. Applications of Plackett–Burman and Central Composite Design for the Optimization of Novel Brevundimonas diminuta KT277492 Chitinase Production, Investigation of its Antifungal Activity
ABSTRACT Biological control strategy which can damage chitin, a vital component of pathogenic fungi and arthropods promises a safe solution for many fungal problems. And it’s more favorable than chemicals which increase health risks and environmental problems. Thus, the chitinase producers appear potential candidates of biological control of pathogenic fun
Braz. arch. biol. technol.. Publicado em: 31/10/2016
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9. Whisker-mediated transformation of peanut with chitinase gene enhances resistance to leaf spot disease
Abstract Peanut (Arachis hypogaea) is an important legume and oilseed crop, native to South America and grown in all tropical and temperate regions of the world. A simplified and rapid direct gene delivery system in peanut was developed by vortexing silicon carbide whiskers with callus and with plasmid harboring chitinase and hygromcin genes. The effects of
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-06
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10. Cultural conditions on the production of extracellular enzymes by Trichoderma isolates from tobacco rhizosphere
Abstract Twelve isolates of Trichoderma spp. isolated from tobacco rhizosphere were evaluated for their ability to produce chitinase and β-1,3-glucanase extracellular hydrolytic enzymes. Isolates ThJt1 and TvHt2, out of 12 isolates, produced maximum activities of chitinase and β-1,3-glucanase, respectively. In vitro production of chitinase and β-1,3-gluca
Braz. J. Microbiol.. Publicado em: 2016-03
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11. Exploring plant growth-promotion actinomycetes from vermicompost and rhizosphere soil for yield enhancement in chickpea
Abstract The main objective of the present study was to isolate and characterize actinomycetes for their plant growth-promotion in chickpea. A total of 89 actinomycetes were screened for their antagonism against fungal pathogens of chickpea by dual culture and metabolite production assays. Four most promising actinomycetes were evaluated for their physiologi
Braz. J. Microbiol.. Publicado em: 2016-03
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12. Cloning and expression analysis of the chitinase gene Ifu-chit2 from Isaria fumosorosea
Entomopathogenic fungi can produce a series of chitinases, some of which function synergistically with proteases and other hydrolytic enzymes to degrade the insect cuticle. In the present study, the chitinase gene Ifu-chit2 from Isaria fumosorosea was investigated. The Ifu-chit2 gene is 1,435-bp long, interrupted by three short introns, and encodes a predict
Genet. Mol. Biol.. Publicado em: 2015-09