Alternaria host-selective toxins: determinant factors of plant disease.
نویسندگان
چکیده
منابع مشابه
Host-selective toxins and disease specificity: perspectives and progress.
The high degree of specificity that many pathogens have with their plant hosts is well-documented from field observations and genetic analysis. Hundreds of disease-specificity genes have been described in plants (resistance genes) and in pathogens (pathogenicity genes). Significant progress has been made in the genetics of specificity, in Mendelian and, more recently, molecular terms. However, ...
متن کاملHost-selective toxins: agents of compatibility.
Host-selective toxins (HSTs) are, with one exception, low molecular weight compounds with diverse structures that act as positive agents of virulence or pathogenicity. Approximately 20 HSTs have been documented. In general, HSTs are determinants of host range or specificity in that plant species, varieties, or genotypes sensitive to an HST are those that are susceptible to the producing pathoge...
متن کاملAlternaria Toxins: Potential Virulence Factors and Genes Related to Pathogenesis
Alternaria is an important fungus to study due to their different life style from saprophytes to endophytes and a very successful fungal pathogen that causes diseases to a number of economically important crops. Alternaria species have been well-characterized for the production of different host-specific toxins (HSTs) and non-host specific toxins (nHSTs) which depend upon their physiological an...
متن کاملHost-selective toxins as agents of cell death in plant-fungus interactions.
Summary Host-selective toxins are known determinants of compatibility in plant-fungus interactions and provide a powerful model for understanding the specificity of these associations. The identification of genes required for toxin biosynthesis has shown that the genes are unique to the toxin producing species and are clustered in complex loci. These loci may have been acquired by horizontal ge...
متن کاملEffects of host-specific toxins on electropotentials of plant cells.
Host-specific toxins from Helminthosporium victoriae (HV) and Periconia circinata (PC) caused gradual decreases in the negative electropotentials of single cells of susceptible but not of resistant plants. When tissues were held in a standard nutrient solution, the decrease (depolarization) induced by HV toxin was approximately 50 mv/hr; the decrease induced by PC toxin was even more gradual. C...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Phytopathology
سال: 2014
ISSN: 0031-9473,1882-0484
DOI: 10.3186/jjphytopath.80.s49