Reação de genótipos de feijoeiro comum a Fusarium oxysporum f. sp. phaseoli, Macrophomina phaseolina e Xanthomonas campestris pv. phaseoli
نویسندگان
چکیده
منابع مشابه
Interaction between Meloidogyne incognita and Fusarium oxysporum f. sp. phaseoli on Selected Bean Genotypes.
Four bean genotypes (IPA-1, A-107, A-211, and Calima), representing all possible combinations of resistance and susceptibility to Fusarium oxysporum f. sp. phaseoli (Fop) and Meloidogyne incognita, were each inoculated with three population densities of these pathogens. Calima and A-107 were resistant to Fop; A-107 and A-211 were resistant to M. incognita; and IPA-1 was susceptible to both path...
متن کاملGenetic Diversity and Pathogenic Variation of Common Blight Bacteria (Xanthomonas campestris pv. phaseoli and X. campestris pv. phaseoli var. fuscans) Suggests Pathogen Coevolution with the Common Bean.
ABSTRACT Common bacterial blight (CBB), caused by Xanthomonas campestris pv. phaseoli and X. campestris pv. phaseoli var. fuscans, is one of the most important diseases of common bean (Phaseolus vulgaris) in East Africa and other bean-growing regions. Xanthomonad-like bacteria associated with CBB in Malawi and Tanzania, East Africa, and in Wisconsin, U.S., were characterized based on brown pigm...
متن کاملGenetic and physiological analysis of the major OxyR-regulated katA from Xanthomonas campestris pv. phaseoli.
katA encodes the major catalase that accounts for 90 % of the total catalase activity present in Xanthomonas campestris pv. phaseoli. katA is located upstream of an ORF designated ankA encoding a cytoplasmic membrane protein homologous to eukaryotic ankyrin. Transcriptional analysis of katA and ankA identified two katA transcripts: a major monocistronic katA transcript and a minor bicistronic k...
متن کاملComportamento De Cultivares De Feijoeiro Comum À Murcha-de-curtobacterium*
Behaviour of dry bean cultivars to bacterial wilt The objective of this research was to evaluate the reaction of 40 dry bean (Phaseolus vulgaris) cultivars inoculated with two isolates of Curtobacterium flaccumfaciens pv. flacummfaciens, and the shoot dry weight of resistant and susceptible dry bean cultivars inoculated or not with this bacteria. The cultivars IAC Carioca Aruã, IAC Carioca Akyt...
متن کاملImportant role for methionine sulfoxide reductase in the oxidative stress response of Xanthomonas campestris pv. phaseoli.
A methionine sulfoxide reductase gene (msrA) from Xanthomonas campestris pv. phaseoli has unique expression patterns and physiological function. msrA expression is growth dependent and is highly induced by exposure to oxidants and N-ethylmaleimide in an OxyR- and OhrR-independent manner. An msrA mutant showed increased sensitivity to oxidants but only during stationary phase.
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ژورنال
عنوان ژورنال: Pesquisa Agropecuária Brasileira
سال: 1999
ISSN: 0100-204X
DOI: 10.1590/s0100-204x1999000400004