耐久性休眠細胞の多様性―芽胞の構造、発芽と耐性化機構と損傷芽胞の解析

DOI

書誌事項

タイトル別名
  • Diversity of Durable Dormant Cells: Insights into the Structure, Germination, and Resistance Mechanisms of Spores, and How to Analyze Damaged Spores

抄録

Five types of durable dormant cells in bacteria are known, and they do not have evolutionary connections to each other. The endospore of Bacillus and Clostridium, the exospore of Streptomyces, the myxospore of Gram-negative bacteria Myxococcus xanthus, the cysts of Gram-negative bacteria Azotobacter, and the akinetes of the cyanobacterium Anabaena cylindrica are known. Although they are molds rather than bacteria, the ascospores of Talaromyces, Neosartorya, and Byssochlamys show the same level of heat resistance as endospores of bacteria, and food contamination accidents have occurred. Endospores of Bacillus and Clostridium show significant resistance to elevated temperature, high pressure, ultraviolet light, radiation, and chemical agents and are often used as biological indicators (BI) in sterilization. Spore-forming bacteria are found in diverse environments, including natural settings and the food industry. Some of them can cause health issues in animals and humans. The aim of this paper is to offer an overview of the most recent discoveries and remaining questions concerning exosporium and spore coat structure, dehydration in the spore core, DNA protection, DNA repair systems, and germination mechanisms, particularly those associated with spore resistance, which have been thoroughly investigated. Additionally, it provides a summary of techniques for investigating damaged spores. This information will be valuable for understanding the mechanisms underlying physical or chemical disinfection methods and for selecting the most suitable culture medium for colony counting.

収録刊行物

  • FFIジャーナル

    FFIジャーナル 229 (1), 028-035, 2024

    FFIジャーナル編集委員会

詳細情報 詳細情報について

  • CRID
    1390017611479257216
  • DOI
    10.34457/ffij.229.1_028
  • ISSN
    24365998
    09199772
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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