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Membrane Permeability and the Loss of Germination Factor from Neurospora crassa at Low Water Activities

Charlang, Gisela and Horowitz, N. H. (1974) Membrane Permeability and the Loss of Germination Factor from Neurospora crassa at Low Water Activities. Journal of Bacteriology, 117 (1). pp. 261-264. ISSN 0021-9193. http://resolver.caltech.edu/CaltechAUTHORS:CHAjbact74

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Abstract

Neurospora crassa conidia incubating in buffer at low water activities (aw) release a germination-essential component as well as 260-nm absorbing and ninhydrin-positive materials, regardless of whether an electrolyte or non-electrolyte is used to reduce aw. Chloroform and antibiotics known to increase cell-membrane permeability have a similar effect. This suggests that membrane damage occurs in media of low aw and that an increase in permeability is responsible for the release of cellular components. The damage caused in media of low aw is nonlethal in most cases, and the conidia recover when transferred to nutrient medium.


Item Type:Article
Additional Information:Copyright © 1974 American Society for Microbiology. Received for publication 23 July 1973 This work was supported by a grant from the National Aeronautics and Space Administration (NGR 05-002-121).
Record Number:CaltechAUTHORS:CHAjbact74
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CHAjbact74
Alternative URL:http://jb.asm.org/cgi/content/abstract/117/1/261
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2826
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:28 Apr 2006
Last Modified:26 Dec 2012 08:51

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