DOI: 10.1111/j.1365-2621.1966.tb00518.x. Structure of Spores of Rough and Smooth Variants of Bacillus Stearothermophilus with Special Reference to Their Heat Resistance

Structure of Spores of Rough and Smooth Variants of Bacillus Stearothermophilus with Special Reference to Their Heat Resistance

10.1111/j.1365-2621.1966.tb00518.x

Crossref journal-article

Wiley

Journal of Food Science (311)

Abstract

SUMMARYA single‐cell method was used to separate two variant forms of Bacillus stearothermophilus. The heat resistance of rough and smooth variant spores was determined. The D250°F values for the smooth and rough variants were respectively 2.32 and 1.42 min. Thin sections of spores of both variants revealed that there were three layers in the spore wall of both variants. In the smooth variant, however, these layers adhere together whereas in the rough they separated. Also, the spore wall was thicker in the smooth variant than in the rough variant. Immediately adjacent to the spore wall of the smooth variant was a “two‐layer” area of less electron density than the spore wall. The cortex was thicker in the rough variant than in the smooth. The spore core wall, or a layer surrounding the core of the spore, was present in the rough variant hut not in the smooth.

Bibliography

ROTMAN, Y., & FIELDS, M. L. (1966). Structure of Spores of Rough and Smooth Variants of Bacillus Stearothermophilus with Special Reference to Their Heat Resistance. Journal of Food Science, 31(3), 437â440. Portico.

Authors 2

Y. ROTMAN (first)
M. L. FIELDS (additional)

References 18 Referenced 12

{'key': 'e_1_2_1_2_1', 'first-page': '234', 'article-title': 'Heating lag in thermal death time cans and tubes', 'volume': '9', 'author': 'Ball C. O.', 'year': '1937', 'journal-title': 'Food Research'} / Food Research / Heating lag in thermal death time cans and tubes by Ball C. O. (1937)
10.1093/infdis/29.5.528
10.1038/183124a0
10.1093/infdis/34.5.516
10.1128/am.11.2.100-104.1963 / Appl. Microbiol. / Effect of heat on spores of rough and smooth variants of Bacillus stearothermophilus by Fields M. L. (1963)
Fields M. L.andN.Finley.1962.Studies on heat responses of bacterial spores causing flat sour spoilage in canned foods. III. Effect of storage time on activation and thermal destruction responses. Missouri univ. Agr. Expt. Sta. Research Bull. No. 807.
10.1128/am.10.3.231-236.1962 / Appl. Microbial. / Heat activation and heat‐induced dormancy of Bacillus stearothermophilus spores by Finley N. (1962)
{'issue': '1964', 'key': 'e_1_2_1_9_1', 'article-title': 'The location of dipicolinic acid in Bacillus subtilis spores and the role as a barrier to stainability', 'volume': '7', 'author': 'Hachisuka Y.', 'year': '1963', 'journal-title': 'Snore Newsletter'} / Snore Newsletter / The location of dipicolinic acid in Bacillus subtilis spores and the role as a barrier to stainability by Hachisuka Y. (1963)
10.1139/m60-022
10.1083/jcb.7.2.373
10.1128/jb.90.2.453-455.1965 / J. Bacteriol. / Further observations on the sporogram of Bacillus cereus endospores by Knaysi G. (1965)
10.1016/0006-291X(61)90086-9
{'key': 'e_1_2_1_14_1', 'first-page': '60', 'volume-title': 'A handbook for biologists', 'author': 'Mercer E. H.', 'year': '1961'} / A handbook for biologists by Mercer E. H. (1961)
{'key': 'e_1_2_1_15_1', 'first-page': '67', 'volume-title': 'Histological technique for electron microscopy', 'author': 'Peas D. C.', 'year': '1960'} / Histological technique for electron microscopy by Peas D. C. (1960)
10.1111/j.1365-2621.1951.tb17396.x
10.1083/jcb.13.3.423
10.1083/jcb.23.1.113
{'key': 'e_1_2_1_19_1', 'volume-title': 'Instructions', 'author': 'Tronscope Model TRS‐50 EL.'} / Instructions by Tronscope Model TRS‐50 EL.

Dates

Type	When
Created	19 years ago (Aug. 25, 2006, 9:36 p.m.)
Deposited	1 year, 9 months ago (Nov. 7, 2023, 3:52 a.m.)
Indexed	1 year, 9 months ago (Nov. 10, 2023, 10:50 a.m.)
Issued	59 years, 4 months ago (May 1, 1966)
Published	59 years, 4 months ago (May 1, 1966)
Published Online	19 years ago (Aug. 25, 2006)
Published Print	59 years, 4 months ago (May 1, 1966)

Funders 0

None

BibTeX

@article{ROTMAN_1966, title={Structure of Spores of Rough and Smooth Variants of Bacillus Stearothermophilus with Special Reference to Their Heat Resistance}, volume={31}, ISSN={1750-3841}, url={http://dx.doi.org/10.1111/j.1365-2621.1966.tb00518.x}, DOI={10.1111/j.1365-2621.1966.tb00518.x}, number={3}, journal={Journal of Food Science}, publisher={Wiley}, author={ROTMAN, Y. and FIELDS, M. L.}, year={1966}, month=may, pages={437–440} }

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