Fasulye pası Uromyces appendiculatus ve adi yaprak yanıklığı etmeni Xanthomonas axonopodis pv. phaseoli dünya genelinde fasulye üretim alanlarında yaygın olarak görülen önemli hastalık etmenleridir. Bu etmenleriyle en etkin sürdürülebilir mücadele yöntemi dayanıklı ıslah materyallerinin geliştirilmesidir. amaçla yapılan çalışmalarda söz konusu hastalıklara karşı dayanıklılıkta rol oynayan lokus...

We have solved the structure of ferredoxin-NADP(H) reductase, FPR, from the plant pathogen Xanthomonas axonopodis pv. citri, responsible for citrus canker, at a resolution of 1.5 Å. This structure reveals differences in the mobility of specific loops when compared to other FPRs, probably unrelated to the hydride transfer process, which contributes to explaining the structural and functional div...

El tizón común (Xanthomonas axonopodis pv. phaseoli = Xap) es un problema especialmente importante en las regiones tropicales ysubtropicales productoras de frijol (Phaseolus vulgaris L.). Debido a la dificultad y costo su control con pesticidas, resistencia genética uno los métodos más efectivos, económica ambientalmente. En este trabajo se presentan avances resultados respuestade 70 familias: ...

An antibacterial metabolite extracted from Paenibacillus polymyxa HKA-15 showed strong inhibition against Xanthomonas campestris pv. phaseoli strains CP-1-1 and M-5. Minimum inhibitory concentration (MIC) of crude extract against strains CP-1-1 and M-5 was found to be 1.7 mg/ml and 1.52 mg/ml, respectively. In UV-Vis range, the absorption peak of crude extract was maximum at 240 nm. The compoun...

Analyses of DNA polymorphism and virulence variation were used to evaluate the population structure of Xanthomonas axonopodis pv. manihotis, the pathogen causing cassava bacterial blight in Colombia. We collected strains from the major cassava-growing regions which can be grouped into different edaphoclimatic zones (ECZs) according to environmental conditions, production constraints, and econom...

Restriction fragment length polymorphisms (RFLPs) were used to study the population genetics and temporal dynamics of the cassava bacterial pathogen Xanthomonas axonopodis pv. manihotis. The population dynamics were addressed by comparing samples collected from 1995 to 1999 from six locations, spanning four different edaphoclimatic zones (ECZs). Forty-five different X. axonopodis pv. manihotis ...

We constructed and characterized a Xanthomonas campestris pv. phaseoli oxyR mutant. The mutant was hypersensitive to H2O2 and menadione killing and had reduced aerobic plating efficiency. The oxidants' induction of the catalase and ahpC genes was also abolished in the mutant. Analysis of the adaptive responses showed that hydrogen peroxide-induced protection against hydrogen peroxide was lost, ...

abstract citrus bacterial canker disease caused by xanthomonas axonopodis pv. citri is one of the most important diseases of citrus in south of iran. in this research, the samples of bacterial flora of citrus leaves were collected from various citrus growing areas of hormozgan, jiroft and mazandaran.the epiphytic bacteria were isolated from those leaves during 2000 and 2001 years. from 453 isol...