Biotrophic Pathogen
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Morphology and infection process of Olivea neotectonae in teak leaves
RESUMO: A ferrugem, causada pelo fungo biotrófico Olivea neotectonae, destaca-se como uma doença importante nas plantações de teca no Brasil. Considerando a importância atual dessa ferrugem e a necessidade de obter informações básicas adicionais sobre seu agente causal para melhor manejo da doença, o presente estudo teve como objetivo analisar a mor
Arq. Inst. Biol.. Publicado em: 28/10/2019
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2. Etiology and epidemiology of Pythium root rot in hydroponic crops: current knowledge and perspectives.
The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed with emphasis on knowledge and concepts considered important for managing the disease in commercial greenhouses. Pythium root rot continually threatens the productivity of numerous kinds of crops in hydroponic systems around the world including cucumber, tomato, swee
Summa Phytopathologica. Publicado em: 2011
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3. The glyceraldehyde-3-phosphate dehydrogenase gene of Moniliophthora perniciosa, the causal agent of witches' broom disease of Theobroma cacao
This report describes the cloning, sequence and expression analysis of the glyceraldehyde-3-phosphate dehydrogenase (GAPDH) gene of Moniliophthora perniciosa, the most important pathogen of cocoa in Brazil. Southern blot analysis revealed the presence of a single copy of the GAPDH gene in the M. perniciosa genome (MpGAPDH). The complete MpGAPDH coding sequen
Genetics and Molecular Biology. Publicado em: 2009
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4. Caracterization of a thaumatin-like gene expressed by Moniliophthora Perniciosa fungus, the causative agent of cacao Whiches Broom disease / Caracterização de um gene similar a taumatina expresso pelo fungo causador da Vassoura de bruxa, Moniliophthora perniciosa
Moniliophthora perniciosa is a phytopatogen that has economical importance in Brazil, particularly in the south of Bahia, because this fungus causes the disease in cacao known as Witches Broom disease. This fungus is a hemibiotrofic pathogen that has two distinct stages: a biotrophic (or parasitic) and a necrotrophic (or saprotrophic). The database generated
Publicado em: 2008
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5. AVALIAÇÃO DE NOVE ESPÉCIES DE LEGUMINOSAS COMO HOSPEDEIROS ALTERNATIVOS DE Phakopsora pachyrhizi Syd. &P.Syd
Soybean yield has been the main culture in Brazil for its cultivation area and grain yield, which puts Brazil in the second place in world greatest yield and in the first place in country exporter. Although, the potential of productive efficiency of that culture of 4,000 kg hectare, it is hart to reach. Among main factors, diseases predominated, with great i
Publicado em: 2007
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6. AVALIAÇÃO DE NOVE ESPÉCIES DE LEGUMINOSAS COMO HOSPEDEIROS ALTERNATIVOS DE Phakopsora pachyrhizi Syd. &P.Syd
A produção de soja (Glycine max (L) Merrill) se tornou a principal cultura brasileira em área cultivada e produção de grãos, colocando o Brasil na posição de segundo maior produtor mundial e primeiro país exportador. Não obstante, o potencial de rendimento dessa cultura de 4.000 kg por hectare, é dificilmente alcançado. Dentre os principais fator
Publicado em: 2007
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7. Possible Roles for Mannitol and Mannitol Dehydrogenase in the Biotrophic Plant Pathogen Uromyces fabae1
Levels of the C6-polyol mannitol were observed to rise dramatically in the biotrophic interaction of the rust fungus Uromyces fabae and its host plant Vicia faba. Mannitol was found in millimolar concentrations in extracts and apoplastic fluids of infected leaves and also in extracts of spores. We suggest that this polyol might have at least a dual function:
American Society of Plant Biologists.
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8. In Planta Production of Indole-3-Acetic Acid by Colletotrichum gloeosporioides f. sp. aeschynomene
The plant pathogenic fungus Colletotrichum gloeosporioides f. sp. aeschynomene utilizes external tryptophan to produce indole-3-acetic acid (IAA) through the intermediate indole-3-acetamide (IAM). We studied the effects of tryptophan, IAA, and IAM on IAA biosynthesis in fungal axenic cultures and on in planta IAA production by the fungus. IAA biosynthesis wa
American Society for Microbiology.
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9. Characterization of a novel NADP+-dependent D-arabitol dehydrogenase from the plant pathogen Uromyces fabae
We have identified and characterized a novel NADP+-dependent D-arabitol dehydrogenase and the corresponding gene from the rust fungus Uromyces fabae, a biotrophic plant pathogen on broad bean (Vicia faba). The new enzyme was termed ARD1p (D-arabitol dehydrogenase 1). It recognizes D-arabitol and mannitol as substrates in the forward reaction, and D-xylulose,
Portland Press Ltd..
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10. Gene Expression Profiles of Blumeria graminis Indicate Dynamic Changes to Primary Metabolism during Development of an Obligate Biotrophic PathogenW⃞
cDNA microarrays of Blumeria graminis f sp hordei transcript profiles during the asexual development cycle reveal the dynamics of global gene expression as the fungus germinates, penetrates, feeds on its host, and produces masses of conidia for dispersal. The expression profiles of genes encoding enzymes involved in primary metabolism show that there is a st
American Society of Plant Biologists.
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11. The Monosaccharide Transporter Gene, AtSTP4, and the Cell-Wall Invertase, Atβfruct1, Are Induced in Arabidopsis during Infection with the Fungal Biotroph Erysiphe cichoracearum1
Powdery mildew fungi are biotrophic pathogens that form a complex interface, the haustorium, between the host plant and the parasite. The pathogen acts as an additional sink, competing with host sinks, resulting in considerable modification of photoassimilate production and partitioning within the host tissue. Here, we examine the factors that may contri
The American Society for Plant Biologists.
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12. Isolation and characterization of powdery mildew-resistant Arabidopsis mutants
A compatible interaction between a plant and a pathogen is the result of a complex interplay between many factors of both plant and pathogen origin. Our objective was to identify host factors involved in this interaction. These factors may include susceptibility factors required for pathogen growth, factors manipulated by the pathogen to inactivate or avoid
The National Academy of Sciences.