Journal of Phytopathology - Phytopathologische Zeitschrift (1995) 143, 633-638

S. Wagner and C. Boyle (1995)
Changes in carbohydrate, protein and chlorophyll content, and enzyme activity during the switch from uredinio- to teliospore sporulation in the bean-rust fungus Uromyces appendiculatus (Pers.) Link
Journal of Phytopathology - Phytopathologische Zeitschrift 143 (11-12), 633-638
Abstract: Changes in carbohydrate metabolism and senescence during the development of the bean-rust fungus Uromyces appendiculatus (Pers.) Link were investigated. At different stages of uredinio- and teliospore production, samples were taken from infected and non-infected bean leaves, beginnig with the flecking stage. The unsoluble-carbohydrate, sucrose, glucose and fructose content, as well as fluctuations in soluble acidinvertase activity and parameters of leaf senescence were determined.
While fructose remained constant without significant differences between infected leaf sections and the control, differences in the other carbohydrates and in soluble-invertase activity could be detected. Parameters indicating leaf senescence were retarded and decreased with age, except for peroxidase activity, which was enhanced and increasd with age in infected tissue to a higher degree than in the control. The results are discussed in relation to their significance for fungal development.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Uromyces appendiculatus	Beans (Phaseolus)