Exospores and cysts formed by methane-utilizing bacteria.
TLDR
Three varieties of resting stage, an exospore and two types of cyst, were formed by methane-utilizing bacteria, including a desiccation-resistant cyst formed by one strain differed in structure and appearance from Azotobacter-type cysts and was referred to as a ‘lipid’ cyst.Abstract:
SUMMARY
Three varieties of resting stage, an exospore and two types of cyst, were formed by methane-utilizing bacteria. Exospores were budded off by two types of organism, both of which underwent a change in morphology prior to spore formation. Exospores possessed some properties in common with endospores: staining properties, some structural features, mode of germination, desiccation and heat resistance, but contained no detectable dipicolinic acid. Some organisms formed desiccation-resistant cysts similar in morphology, staining properties and fine structure to cysts formed by Azotobacter species. Other strains formed non-desiccation-resistant bodies considered to be similar to immature azotobacter-type cysts. A desiccation-resistant cyst formed by one strain differed in structure and appearance from Azotobacter-type cysts and was referred to as a ‘lipid’ cyst.read more
Citations
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References
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Journal ArticleDOI
Enrichment, isolation and some properties of methane-utilizing bacteria.
TL;DR: The organisms were classified into five groups on the basis of morphology, fine structure, and type of resting stage formed (exospores and different types of cysts) and into subgroups on other properties.
Journal Article
A microchemical reaction resulting in the staining of polysaccharide structures in fixed tissue preparations
Journal ArticleDOI
Colorimetric assay for dipicolinic acid in bacterial spores.
Journal ArticleDOI
Studies on the biosynthesis of dipicolinic acid in spores of Bacillus cereus var. mycoides.
Jerome J. Perry,J. W. Foster +1 more
TL;DR: Evidence for the identity of the substance is presented and a method for quantitative microestimation of this compound is described together with data on the amount synthesized during the time course of a bacterial suspension undergoing endotrophic.