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Degradation of Muskmelon Cell Wall by the Xylanases of Colletotrichum lagenarium
Author(s) -
DOUXGAYAT A.,
AURIOL P.,
JOSELEAU J. P.,
TOUZÉ A.
Publication year - 1978
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1978.tb04086.x
Subject(s) - cucumis , cell wall , xylose , xylan , fungus , pathogen , polysaccharide , cucurbitaceae , biology , degradation (telecommunications) , botany , chemistry , microbiology and biotechnology , food science , biochemistry , fermentation , telecommunications , computer science
Xylose‐rich polysaccharide fractions were isolated from cell walls of muskmelon ( Cucumis melo L. cv. Cantaloup Charentais) stems. A xylan with a (1 → 4) linked backbone has been characterized as a component of these fractions. Two xylanases excreted by the fungus pathogen Colletotrichum lagenarium were able to degrade this substrate both after extraction and when it was included in the crude cell walls. The results suggest that the xylanases are involved in the parasitism of this pathogen.