Reviving the view: evidence that macromolecule synthesis fuels bacterial spore germination

Bing Zhou, Sima Alon, Lei Rao, Lior Sinai*, Sigal Ben-Yehuda*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations

Abstract

The Gram positive bacterium Bacillus subtilis and its relatives are capable of forming a durable dormant long-lasting spore. Although spores can remain dormant for years, they possess the remarkable capacity to rapidly resume life and convert into actively growing cells. This cellular transition initiates with a most enigmatic irreversible event, termed germination, lasting only for a few minutes. Germination is typified by a morphological conversion that culminates in loss of spore resilient properties. Yet, the molecular events occurring during this brief critical phase are largely unknown. The current widely accepted view considers germination to occur without the need for any macromolecule synthesis; however, accumulating data from our laboratory and others, highlighted here, provide evidence that both transcription and translation occur during germination and are required for its execution. We further underline numerous overlooked studies, conducted mainly during the 1960s–1970s, reinforcing this notion. We propose to revisit the fascinating process of spore germination and redefine it as a pathway involving macromolecule synthesis. We expect our perspective to shed new light on the awakening process of a variety of spore-forming environmental, commensal, and pathogenic bacteria and possibly be applicable to additional organisms displaying a quiescent life form.

Original languageAmerican English
Article number004
JournalMicroLife
Volume3
DOIs
StatePublished - 2022

Bibliographical note

Publisher Copyright:
© 2022 Oxford University Press. All rights reserved.

Keywords

  • Bacillus subtilis
  • spore dormancy
  • spore germination
  • spore revival
  • sporulation

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