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CARBOHYDRATE COMPOSITION AND INVERTASE ACTIVITY IN POPLAR LEAF TISSUES INFECTED BY MILLAMPSORA AECIDIOIDES (D.C.) SCHROETER
Author(s) -
ROBERTS S. M.,
MITCHELL D. T.
Publication year - 1979
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1979.tb07474.x
Subject(s) - invertase , trehalose , sucrose , biology , carbohydrate , mannose , botany , mannitol , sugar , biochemistry
S ummary Qualitative analyses of ethanol‐soluble carbohydrates of rust‐infected poplar leaves were similar to those of other rust infections. Sucrose was the most abundant ethanol‐soluble carbohydrate in both healthy and infected leaf tissues. Mannitol, arabitol and trehalose were detected in low concentrations at the site of infection. Mannose formed a significant proportion of the insoluble carbohydrates in the pustule disc. Activities of both acid and alkaline invertase, assayed by two methods, were similar in both healthy and infected tissues. These results are discussed in relation to those of other biotrophic infections and it is suggested that the Populus canescens Aiton Sm./Melampsora aecidioides (D.C.) Schroeter relationship may be a benign one.