Cell walls and lysis of Mortierella parvispora hyphae.

Abstract:

:Walls of Mortierella parvispora, Pullularia pullulans, Absidia repens, Fusarium oxysporum, and of several Penicillium species varied in their susceptibilities to digestion by glucanase and chitinase. Polysaccharides were present in the residues remaining after enzymatic digestion. Acid hydrolysates of the walls contained glucose, glucosamine, and a small amount of galactose. The walls of M. parvispora, which also contained fucose, were the least digested by these two enzymes. Much of the M. parvispora wall material was resistant to decomposition by a heterogeneous soil community, and viable hyphae were not lysed by a glucanase-chitinase mixture. Walls of this fungus were fractionated, and the chemical composition of the fractions was determined. The chitin which was abundant in one of the fractions was apparently largely shielded from chitinase hydrolysis by a glucan. The ecological significance of these findings is discussed.

journal_name

J Bacteriol

journal_title

Journal of bacteriology

authors

Pengra RM,Cole MA,Alexander M

doi

10.1128/JB.97.3.1056-1061.1969

subject

Has Abstract

pub_date

1969-03-01 00:00:00

pages

1056-61

issue

3

eissn

0021-9193

issn

1098-5530

journal_volume

97

pub_type

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