A5014814884- Plant Pathogens and Fungal Diseases
- Plant-Microbe Interactions and Immunity
- Plant Pathogenic Bacteria Studies
- Banana Cultivation and Research
- Growth and nutrition in plants
- Legume Nitrogen Fixing Symbiosis
- Plant pathogens and resistance mechanisms
- Plant Disease Management Techniques
- Plant tissue culture and regeneration
- Essential Oils and Antimicrobial Activity
- Insect Resistance and Genetics
- Mycorrhizal Fungi and Plant Interactions
- Yeasts and Rust Fungi Studies
- Wheat and Barley Genetics and Pathology
- Plant Parasitism and Resistance
- Plant Physiology and Cultivation Studies
- Entomopathogenic Microorganisms in Pest Control
- Cassava research and cyanide
- Insect and Arachnid Ecology and Behavior
- Research in Cotton Cultivation
- Mycotoxins in Agriculture and Food
- Silicon Effects in Agriculture
- Enterobacteriaceae and Cronobacter Research
- Fungal Plant Pathogen Control
- Agricultural and Food Sciences
Brazilian Agricultural Research Corporation
2013-2025
Universidade Federal de Lavras
2006-2014
United States Department of Agriculture
2012
Agricultural Research Service
2012
Executive Office of the President
2012
University of California Office of the President
2012
Amazon (United States)
2011
Trichoderma spp. are important biological control agents and plant growth promoters. However, only a limited number of species used in even though the genus contains more than 400 species, with most them being mycotrophic. In this study, 97 isolates preserved at EMBRAPA collection (an source for biocontrol agents) previously collected from several areas Brazil were characterized which identified using various molecular markers (internal transcribed spacers ( its ), translation elongation...
Bacterial leaf spot in lettuce is a sporadic but devastating disease that threatens production worldwide. Severe outbreaks have resulted up to 100% crop loss, and even smaller can cause significant yield as the affected tissue must be removed from heads prior their sale. The pathogen, Xanthomonas hortorum pv. vitians (Xhv), has at least three races, with each defined by or resistance phenotype it elicits cultivars accessions. Specific molecular detection of Xhv would facilitate work...
Foi investigada a eficácia comparativa da pulverização foliar em tomateiro de acibenzolar-S-metil (ASM) e Ecolife® na proteção contra Xanthomonas vesicatoria, bem como avaliada ativação algumas respostas bioquímicas defesa planta. Plantas cv. Santa Cruz Kada foram pulverizadas com acibenzolar S-metil (0,2 g l-1 ASM) uma formulação natural proveniente biomassa cítrica denominada (5 ml l-1). Quatro dias após as pulverizações, plantas inoculadas um isolado patogênico vesicatoria. Em...
Tendo em vista as diversas atividades biológicas apresentadas pelos óleos essenciais e o potencial antibacteriano do óleo essencial de Lippia sidoides Cham., objetivou-se, com este trabalho, caracterizar desta espécie coletada na região sul estado Minas Gerais-Brasil, bem como identificar suas estruturas secretoras avaliar sua atividade antimicrobiana sobre fitobactérias Clavibacter michiganensis subsp. Michiganensis, Xanthomonas vesicatoria Pseudomonas syringae pv. tomato. As plantas foram...
Radicchio (Cichorium intybus) is ranked 22 among crops in Monterey County, California, with a farm gate value of $19,531,000 (3). Beginning 2002, leaf spot disease radicchio was observed County. The began as small lesions and some cases coalesced into larger, irregular spots. Lesions were maroon to dark brown; cases, the margins brown became aging. Each observable from both adaxial abaxial surfaces. Symptoms primarily occurred on outer foliage heads, though occasion head cap could develop...
Atualmente, existe a necessidade de se desenvolver métodos sensíveis, baratos, reproduzíveis e rápidos para detecção fitobactérias em sementes. O objetivo deste trabalho foi otimizar um método obtenção das células bacterianas técnica PCR Curtobacterium flaccumfaciens pv. (Cff), sementes feijão. Foi utilizado o primer CffFOR2-REV4, desenhado partir do fragmento amplificado via baseado na seqüência repetitiva (Rep-PCR). Avaliaram-se também quatro preparação dos extratos feijão Cff : 1) extrato...
)were noted to show black fruiting bodies in circular areas. At first,they appeared as minute discolored specks that grow and becomeyellow brown distributed throughout the adaxial side of leafletsand petioles (Figure 1A, B C) adult plant 1D)and on cedar bark 1E). Heavily infected seedlings shedtheir leaves eventually die. Isolation causal agent fromleaves showing typical symptoms was done by disinfecting smallleaf fragments with 70% alcohol 2% sodium hypochlorite,followed transference Petri...
O crestamento bacteriano comum, causado por Xanthomonas axonopodis pv. phaseoli (Xap), é a principal bacteriose do feijoeiro no Brasil, sendo transmitida principalmente sementes. presente trabalho teve como objetivo aperfeiçoar uma técnica, meio de diferentes métodos preparação extrato, para detecção Xap, bem sua simultânea com Curtobacterium flaccumfaciens (Cff) nos extratos sementes feijão,via PCR. A partir amostras feijão inoculadas artificialmente Xap e lotes comerciais, foram avaliados:...
Neste estudo foi testada a técnica de condicionamento fisiológico em meio agarizado para inoculação Curtobacterium flaccumfaciens pv. (Cff) sementes feijão. Na primeira etapa, avaliou-se o comportamento das feijão cultivar Pérola, durante pré-condicionamento osmótico substrato com restrição hídrica. Os tratamentos consistiram expor, por diferentes períodos tempo, desinfestadas quatro níveis hídrica do 523 (-0,55, -0,75, -0,95 e -1,15 MPa), uso substratos (meio 523, 523+KCl, 523+manitol...
Avaliou-se o potencial de rizobactérias na indução resistência do algodoeiro à Xanthomonas axonopodis pv. malvacearum. Após isolamento das rizobactérias, foram selecionados os isolados capazes reduzir sintomas da mancha angular bacteriana em casa vegetação, quais aplicados espacialmente separados patógeno desafiador. Os melhores testados quanto capacidade ramulose e murcha Verticillium inibir diretamente patógenos in vitro. Do total 123 cinco, L2-1 (Bacillus cereus), MT5-6 L2-2...
Several Trichoderma species are known to be able establish beneficial interactions with plants. These complex and involve different mechanisms modes of action that can act individually or together. The production secondary metabolites, including volatile organic compounds (VOCs) is involved in these have been detected characterized. Methodologies evaluate the role VOCs from biological control plant growth promotion some difficulties study subject. This review summarizes advances knowledge...