Publication details

Ultrastructure of the cell wall of Schizosaccharomyces pombe following treatment with various glucanases

Authors

KOPECKÁ Marie FLEET GH PHAFF HJ

Year of publication 1995
Type Article in Periodical
Magazine / Source Journal of Structural Biology
MU Faculty or unit

Faculty of Medicine

Citation
Web http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=CitationReport&qid=13&SID=Z16b286IgGDC9gP7KFB&page=1&doc=4
Field Morphological specializations and cytology
Keywords Ultrastructure; cell wall; yeast; Schizosaccharomyces pombe; various glucanases
Description The ultrastructure of isolated cell walls of Schizosaccharomyces pombe was studied by electron microscopy after treatment with the following purified enzymes: endo-beta-1,3-glucanase, endo-beta-1,6-glucanase, and endo-alpha-1,3-glucanase produced by Bacillus circulans; exo-beta-1,3-glucanase and endo-beta-1,3-glucanase produced by Schizosaccharomyces japonicus var. versatilis. The exo-beta-1,3-glucanase had no detectable effect on the walls, but amorphous wall material was removed by action of the endo-beta-1,3- and endo-beta-1,6-glucanases of B. circulans to reveal a wall component consisitng of densely interwoven microfibrils. The fibrils were hydrolysed by treatment with the Schiz. japonicus endo-beta-1,3-glucanase-suggesting that they were composed of beta-1,3-linked glucan and alpha-1,3-linked glucan. The presence of a fibrillar component in untreated walls was evident after negative staining.

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