Sclerotium Production
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Culture media to detect and criteria to evaluate and report the activity of extracellular enzymes produced by phytopathogenic fungi
RESUMO: As enzimas extracelulares estão envolvidas na patogênese de fungos em plantas. Atualmente, não há uma padronização de meios de cultura, formas de analisar e divulgar os dados de enzimas extracelulares produzidas em condições in vitro. Assim, o presente trabalho objetivou comparar os meios de cultura específicos relatados na literatura (norma
Arq. Inst. Biol.. Publicado em: 29/07/2019
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2. Athelia (Sclerotium) rolfsii in Allium sativum: potential biocontrol agents and their effects on plant metabolites
Abstract Garlic (Allium sativum L.) plays an important role in popular culture due to its dietary and medicinal uses. It is also used to produce a wide range of pharmacologically interesting molecules. Several pathogens affect garlic plants, especially Athelia (Sclerotium) rolfsii, a fungus that is widespread and causes large economic losses. It causes direc
An. Acad. Bras. Ciênc.. Publicado em: 01/11/2018
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3. Tricalcium phosphate solubilization and nitrogen fixation by newly isolated Aneurinibacillus aneurinilyticus CKMV1 from rhizosphere of Valeriana jatamansi and its growth promotional effect
Abstract Aneurinibacillus aneurinilyticus strain CKMV1 was isolated from rhizosphere of Valeriana jatamansi and possessed multiple plant growth promoting traits like production of phosphate solubilization (260 mg/L), nitrogen fixation (202.91 nmol ethylene mL-1 h-1), indole-3-acetic acid (IAA) (8.1 µg/mL), siderophores (61.60%), HCN (hydrogen cyanide) produ
Braz. J. Microbiol.. Publicado em: 2017-06
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4. 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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5. Isolation and fusion of protoplasts from the phytopathogenic fungus Sclerotium rolfsii (Sacc.)
Sclerotium rolfsii (Sacc.) is a serious plant pathogenic fungus and lacks perfect (basidial) stage in production. Protoplast fusion technology was employed to reconstruct fusants from this fungus. Two strains designated as A and R were used. Maximum protoplast yields of 3.8x10(5) /g mycelia and 2.8x10(5) /g mycelia were formed in strains A and R respectively
Brazilian Journal of Microbiology. Publicado em: 2010-03
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6. AnÃlise morfolÃgica e genÃtica de isolados de Rhizoctonia solani e estudos epidemiolÃgicos de grupos de anastomose (AGs) em algodÃo / Morphological and genetic analysis of Rhizoctonia solani isolates and epidemiological studies of anastomosis groups (AGs) in cotton
The knowledge anastomosis groups (AG) of Rhizoctonia solani populations, which cause cotton damping-off and sudden death in Brazil, the pathogen morphological features and disease epidemiology foster the establishment of more efficient disease management strategies in the field. Initially, 51 isolates were obtained from cotton seedlings originated from crop
Publicado em: 2009
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7. Inoculum production, the effect of vegetable extracts and fungicides and soybean genotypes reaction to Sclerotinia sclerotiorum / Produção de inóculo, efeito de extratos vegetais e de fungicidas e reação de genótipos de soja à Sclerotinia sclerotiorum
A podridão branca da haste causada por S. sclerotiorum vem aumentando em campos de cultivo de soja, devido ao cultivo de espécies altamente suscetíveis na safrinha e a utilização de sementes contaminadas por S. sclerotiorum. Estudos envolvendo produção de inóculo, controle alternativo e químico, metodologia de inoculação e resistência de genótip
Publicado em: 2008
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8. Potential do allyl isothiocyanate to control Sclerotium rolfsii and Sclerotinia sclerotiorum / Potencial do isotilcianato de alilo no controle de Sclerotium rolfsii e Sclerotinia sclerotiorum
The losses caused by fungi in the nursery of seedling production are high if the planting substrate is not treated for their eradication. Transplanting infected seedlings to field causes disease in the field besides infesting the soil with pathogens transported by the disease seedling, where the disease control becomes economically unviable. The objective of
Publicado em: 2006
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9. Manejo de coleópteros desfolhadores com atrativos e repelentes em cultivos orgânicos / Management of leaf eating coleopterans with attractive and repellents substances in organic crops
The common bean crops (Phaseolus vulgaris L.) is very important for the human food due its proteins and energetic composition. In Brazil, its social and economical importance is due to the fact its the main responsible to supply the nutritional necessity of the poorer population and of the small familiar farmers that aredevoted to bean production. In a simil
Publicado em: 2005
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10. High Cellobiase and Xylanase Production by Sclerotium rolfsii UV-8 Mutant in Submerged Culture †
Sclerotium rolfsii UV-8 mutant secretes high levels of cellobiase and xylanase in addition to having high cellulase production. The apparent Km and Vmax of cellobiase (grown in NM-2 + 2% corn steep liquor medium) with cellobiose as a substrate were 5.6 mM and 22.2 μmol of glucose liberated per min per ml of culture filtrate, respectively. The addition of 2%
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11. Enhanced Cellulase Production by a Mutant of Sclerotium rolfsii†
A mutant of Sclerotium rolfsii CPC 142 that secretes about two times more filter paper-degrading activity in NM-2 growth medium in submerged cultures than the parent strain was obtained by ultraviolet mutagenesis of crushed sclerotia. The production of endo-β-glucanase in the mutant was affected to a lesser extent. With the parent strain, the addition of 3%
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12. Sporogenic Effect of Polyunsaturated Fatty Acids on Development of Aspergillus spp.
Aspergillus spp. are frequently occurring seed-colonizing fungi that complete their disease cycles through the development of asexual spores, which function as inocula, and through the formation of cleistothecia and sclerotia. We found that development of all three of these structures in Aspergillus nidulans, Aspergillus flavus, and Aspergillus parasiticus i
American Society for Microbiology.