First report of Coleosporium ipomoeae on Ipomoea fistulosa in Brazil
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چکیده
منابع مشابه
Environmental variation mediates the deleterious effects of Coleosporium ipomoeae on Ipomoea purpurea.
Variation in the environment is common within and between natural populations and may influence selection on plant resistance by altering the level of damage or the fitness consequences of damage from plant enemies. While much is known about how environmental variation influences the amount of damage a plant experiences, few studies have attempted to determine how variation in the environment m...
متن کاملGenetics of Resistance to the Rust Fungus Coleosporium ipomoeae in Three Species of Morning Glory (Ipomoea)
We examined the genetic basis of resistance to the rust pathogen Coleosporium ipomoea in three host species: Ipomoea purpurea, I. hederacea, and I. coccinea (Convolvulaceae). In crosses between resistant and susceptible individuals, second-generation selfed offspring segregated in ratios that did not differ statistically from the 3:1 ratio indicative of single-gene resistance with the resistant...
متن کاملMajor-gene resistance to the rust pathogen Coleosporium ipomoeae is common in natural populations of Ipomoea purpurea.
The genetic basis of resistance to pathogens is well studied in crops, yet our understanding of the evolution of this trait in natural populations will be improved by determining how resistance is inherited in a wide range of plant-pathogen interactions. Here, we examined resistance to Coleosporium ipomoeae, a common fungal rust pathogen of Ipomoea purpurea. Natural populations across North Car...
متن کاملCoevolution of the Ipomoea - Coleosporium Natural
Coevolution of the Ipomoea-Coleosporium Natural Plant-Fungus Pathosystem by Thomas Mackey Chappell Department of Biology Duke University Date:_______________________ Approved: ___________________________ Mark D. Rausher, Supervisor ___________________________ Xinnian Dong ___________________________ William G. Wilson ___________________________ Rytas Vilgalys ___________________________ John H....
متن کاملIn-Vitro Antioxidant Activity of Leaves of Ipomoea fistulosa Linn
Free radicals are implicated for more than 80 diseases including Diabetes mellitus, arthritis, cancer, ageing etc. In treatment of theses diseases, antioxidant therapy has gained an utmost importance. Current research is now directed towards finding naturally occurring antioxidant of plant origin. In Indian system of medicine Ipomoea fistulosa is an important medicinal plant. The in-vitro antio...
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ژورنال
عنوان ژورنال: Fitopatologia Brasileira
سال: 2004
ISSN: 0100-4158
DOI: 10.1590/s0100-41582004000600022