细菌芽孢的矿化作用与耐热性
Mineralization and heat resistance of bacterial spores.
作者信息
Marquis R E, Bender G R
出版信息
J Bacteriol. 1985 Feb;161(2):789-91. doi: 10.1128/jb.161.2.789-791.1985.
Abstract
The heat resistances of the fully demineralized H-form spores of Bacillus megaterium ATCC 19213, B. subtilis var. niger, and B. stearothermophilus ATCC 7953 were compared with those of vegetative cells and native spores to assess the components of resistance due to the mineral-free spore state, presumably mainly from dehydration of the spore core, and to mineralization. Mineralization greatly increased heat resistance at lower killing temperatures but appeared to have much less effect at higher ones.
摘要
将巨大芽孢杆菌ATCC 19213、枯草芽孢杆菌黑色变种和嗜热脂肪芽孢杆菌ATCC 7953完全脱矿质的H型孢子的耐热性与营养细胞和天然孢子的耐热性进行比较，以评估由于无矿物质孢子状态（可能主要源于孢子核心脱水）和矿化作用导致的抗性成分。在较低的致死温度下，矿化作用极大地提高了耐热性，但在较高温度下其作用似乎要小得多。
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