Effect of Ion Concentration on the Rupture and Survival of
Azotobacter
Cysts
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Published:1968-06
Issue:6
Volume:16
Page:871-876
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ISSN:0003-6919
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Container-title:Applied Microbiology
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language:en
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Short-container-title:Appl Microbiol
Author:
Goldschmidt Millicent C.1,
Wyss O.1
Affiliation:
1. Microbiology Department, The University of Texas, Austin, Texas 78712
Abstract
The ability of ethylenediaminetetraacetic acid (EDTA) and dipicolinic acid (DPA) to rupture
Azotobacter
cysts was directly related to the molarity of the reaction mixture. Cysts were not ruptured at concentrations above 0.15
m
(NaCl or phosphate). These higher salt concentrations prevented the formation of metallo:EDTA (or DPA) chelate complexes. Sudden shifts in the tonicity of NaCl or phosphate mixtures induced cyst rupture in the absence of EDTA. The effect of these mechanisms on the survival and germination of
Azotobacter
cysts in the soil is discussed.
Publisher
American Society for Microbiology
Subject
General Pharmacology, Toxicology and Pharmaceutics,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine
Cited by
1 articles.
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