Spore formation in Bacillus coagulans has been studied by electron microscopy using an epoxy resin (Araldite) embedding technique. The developmental stages from the origin of the initial spore septum to the mature spore were investigated. The two forespore membranes developed from the double layer of cytoplasmic membrane. The cortex was progressively deposited between these two membranes. The inner membrane finally became the spore protoplasmic membrane, and the outer membrane part of the inner spore coat or the outer spore coat itself. In the mature spore the completed integuments around the spore protoplasm consisted of the cortex, a laminated inner coat, and a dense outer coat. No exosporium was observed. The method of formation of the cortex and the spore coats is discussed.
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July 01 1962
FORMATION AND STRUCTURE OF THE SPORE OF BACILLUS COAGULANS
D. F. Ohye,
D. F. Ohye
From the Commonwealth Scientific and Industrial Research Organization, Division of Food Preservation, Ryde, New South Wales, Australia
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W. G. Murrell
W. G. Murrell
From the Commonwealth Scientific and Industrial Research Organization, Division of Food Preservation, Ryde, New South Wales, Australia
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D. F. Ohye
From the Commonwealth Scientific and Industrial Research Organization, Division of Food Preservation, Ryde, New South Wales, Australia
W. G. Murrell
From the Commonwealth Scientific and Industrial Research Organization, Division of Food Preservation, Ryde, New South Wales, Australia
Received:
March 05 1962
Online ISSN: 1540-8140
Print ISSN: 0021-9525
Copyright, 1962, by The Rockefeller Institute Press
1962
J Cell Biol (1962) 14 (1): 111–123.
Article history
Received:
March 05 1962
Citation
D. F. Ohye, W. G. Murrell; FORMATION AND STRUCTURE OF THE SPORE OF BACILLUS COAGULANS . J Cell Biol 1 July 1962; 14 (1): 111–123. doi: https://doi.org/10.1083/jcb.14.1.111
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