Survival of Oospores of Phytophthora capsici in Soil
نویسندگان
چکیده
منابع مشابه
Thermal inactivation of Phytophthora capsici oospores.
BACKGROUND Phytophthora capsici is a major fungal plant pathogen that causes root and crown rot of pepper crops and its oospores are the most resistant propagules. OBJECTIVES To evaluate the effect of different temperature regimes and exposure times on the survival of P. capsici oospores. METHODS Thermal inactivation treatments simulated field conditions, through the use of different consta...
متن کاملSurvival and spread of Phytophthora capsici in Coastal Peru.
Phytophthora capsici is a soilborne pathogen that causes significant losses to pepper production in Peru. Our objective was to investigate the mechanisms by which P. capsici is able to survive and spread. During 2005 to 2007, 227 isolates of P. capsici were collected from four species of pepper (Capsicum annum, C. baccatum, C. chinense, and C. pubescens) and tomato (Solanum lycopersicum) at 33 ...
متن کاملDetermination of viability of Phytophthora capsici oospores with the tetrazolium bromide staining test versus a plasmolysis method.
BACKGROUND Oospores are the most persistent propagules of Phytophthora capsici. The viability of oospores is determined by staining methods such as the tetrazolium bromide (MTT) test. OBJECTIVES The aim was to assess the MTT test and a plasmolysis method for their utility in determining viability of oospores of P. capsici. METHODS For either procedure the reactions of non-treated (viable) a...
متن کاملExistence of Phytophthora Cinnamomi as Chlamydospores and Oospores in Roots and Soil
Persistence of the avocado root-rot fungus Phytophthora cinnamami Rands in soil for 6 years without a living host was reported by Zentmyer and Mircetich (8). The authors suggested that the fungus may survive in dead avocado roots as inactive mycelia, chlamydospores or oospores. Blackwell (1) considers chlamydospores of Phytophthora spp. to be resistant structures which allow these fungi to pers...
متن کاملInterspecific hybridization and apomixis between Phytophthora capsici and Phytophthora tropicalis.
Phytophthora capsici and the closely related Phytophthora tropicalis infect different hosts that have documented overlapping geographical distributions. Phytophthora capsici attacks annual vegetable hosts whereas P. tropicalis has been recovered from woody perennial hosts. Our objective was to test whether interspecific hybridization is possible and to characterize the resulting progeny. Crosse...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2013
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-12-12-1123-re