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THE PRODUCTION OF TREHALOSE AND POLYOLS BY USTILAGO NUDA IN CULTURE AND THEIR UTILIZATION IN HEALTHY AND INFECTED WHEAT PLANTS
Author(s) -
GAUNT R. E.,
MANNERS J. G.
Publication year - 1973
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.1469-8137.1973.tb02039.x
Subject(s) - erythritol , mannitol , trehalose , ustilago , sucrose , spore , fungus , biology , biochemistry , polyol , ribitol , chemistry , microbiology and biotechnology , botany , organic chemistry , polyurethane , gene , enzyme
SUMMARY In liquid culture, Ustilago nuda hydrolyses exogenous sucrose and endogenously synthesizes trehalose, mannitol and erythritol. The two polyols are released into the medium. When injected into healthy host tissue, mannitol did not appear to be readily metabolized, but erythritol was converted into an unidentified compound, probably a glycoside derivative. It is suggested that a reciprocal flow of carbohydrate may occur from the fungus to the host. Spores produced in culture were shown to be pathogenic.