Phytopathogenic Fungi Pathogenicity
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. exoenzymes as a pathogenicity factor for Colletotrichum gloeosporioides associated with coffee plants
RESUMO Fungos fitopatogênicos durante o processo de penetração e colonização são capazes de secretar uma variedade de enzimas, as quais os tornam capazes de infectar o tecido vivo do hospedeiro, atuando na degradação de ceras, cutícula e das paredes celulares. A capacidade de um agente patogênico em produzir ou não enzimas pode determinar o grau d
Summa phytopathol.. Publicado em: 17/01/2020
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2. Spilocaea pyracanthae causing leaf scab on loquat in Pakistan
ABSTRACT Loquat is attacked by many phytopathogenic fungi. Among these Spilocaea pyracanthae is of economic importance. The fungus received no attention in Pakistan and some other parts of the world. The current study is focused on the symptomatology of this disease and the etiology of the fungus. During extensive surveys of loquat orchards in 2013 heavy inf
Bragantia. Publicado em: 27/11/2015
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3. Genetic transformation and pathogenicity of Guignardia citricarpa / Transformação genética e patogenicidade de Guignardia citricarpa
O Brasil é líder absoluto no comércio internacional de suco de laranja concentrado congelado participando com 82% do volume comercializado no mundo. Guignardia citricarpa é um fungo Ascomiceto agente causal da Mancha Preta dos Citros (MPC), uma doença importante no contexto da Citricultura, causando lesões negras em frutos tornando-os impróprios para
Publicado em: 2010
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4. Caracterização bioquimica e molecular da doença vassoura-de-bruxa do cacaueiro (Theobroma cacao L.), causada pelo fungo Crinipellis perniciosa / Biochemical and molecular characterization of witches broom disease of cocoa (Theobroma cacao L.), caused by the fungus Crinipellis perniciosa
Witches? broom disease, caused by the hemibiotrophic fungus Crinipellis perniciosa, is one of the most important diseases of cocoa, causing dramatic production and economic losses. A better understanding of the cacao - C. perniciosa interaction and the processes that occur in the plant during disease progression becomes necessary in order to establish novel
Publicado em: 2006
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5. Isolamento, caracterização e regulação de genes que codificam pectato liase em Crinipellis perniciosa, agente etiológico da vassoura-de-bruxa do cacaueiro (Theobroma cacao) / Isolation, characterization and regulation of genes encoding pectate lyase in Crinipellis perniciosa, etiological agent of the witches broom in cocoa (Theobroma cacao)
In this work, genes encoding the pectinolytic enzyme pectate lyase were isolated from the genome of the fungus Crinipellis perniciosa, etiological agent of the witches broom disease of cocoa. Pectinolytic enzymes have been correlated with the pathogenicity of some phytopathogenic fungi. Preliminary database searches of the Genome Project Witches broom, revea
Publicado em: 2006
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6. Witches broom disease of cocoa : genome organization, genetic variability and anlysis of the identity and expression of pathogenicity genes of the fungal pathogen Crinipellis perniciosa / Vassoura-de-bruxa : organização genomica, variabilidade de isolados e analise da identidade e expressão de genes ligados a patogenicidade do fungo Crinipellis perniciosa
Witches broom disease of cocoa is a complex pathosystem that has evaded an efficient control program in the cacao-producing region of Bahia, Brazil. The main goal of this work was to acquire a better understanding of the C. perniciosa-Cacao interaction by providing new data regarding: 1) the size and organization of the fungal genome through molecular karyot
Publicado em: 2006
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7. Fungal Resistance to Plant Antibiotics as a Mechanism of Pathogenesis
Many plants produce low-molecular-weight compounds which inhibit the growth of phytopathogenic fungi in vitro. These compounds may be preformed inhibitors that are present constitutively in healthy plants (also known as phytoanticipins), or they may be synthesized in response to pathogen attack (phytoalexins). Successful pathogens must be able to circumvent
American Society for Microbiology.
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8. Detoxification of Benzoxazolinone Allelochemicals from Wheat by Gaeumannomyces graminis var. tritici, G. graminis var. graminis, G. graminis var. avenae, and Fusarium culmorum
The ability of phytopathogenic fungi to overcome the chemical defense barriers of their host plants is of great importance for fungal pathogenicity. We studied the role of cyclic hydroxamic acids and their related benzoxazolinones in plant interactions with pathogenic fungi. We identified species-dependent differences in the abilities of Gaeumannomyces grami
American Society for Microbiology.
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9. pH Signaling in Sclerotinia sclerotiorum: Identification of a pacC/RIM1 Homolog
Sclerotinia sclerotiorum acidifies its ambient environment by producing oxalic acid. This production of oxalic acid during plant infection has been implicated as a primary determinant of pathogenicity in this and other phytopathogenic fungi. We found that ambient pH conditions affect multiple processes in S. sclerotiorum. Exposure to increasing alkaline ambi
American Society for Microbiology.