Microbial dormancy as an ecological and biogeochemical regulator on Earth

Area of Science:

• Microbial Ecology
• Geochemistry
• Earth System Science

Background:

• Microorganisms are fundamental to Earth's ecosystems and biogeochemical cycles.
• Microbial dormancy, a reversible state of low metabolic activity, is widespread across diverse environments.
• Dormancy allows microbes to survive harsh environmental conditions.

Purpose of the Study:

• To highlight the significant influence of microbial dormancy on Earth's ecological and biogeochemical architecture.
• To emphasize the role of dormancy in microbial interactions with the geosphere over geological time.
• To advocate for interdisciplinary approaches to study microbial dormancy.

Main Methods:

• This study presents a conceptual argument and synthesis of existing knowledge.
• It integrates findings from microbial ecology, geochemistry, and Earth system science.
• It emphasizes the importance of geosphere-biosphere interactions.

Main Results:

• Microbial dormancy exerts a powerful influence on ecological and biogeochemical processes across spatial and temporal scales.
• Dormancy manifests diversely across microbial taxa and operates over timescales from hours to millennia.
• Microbial dormancy facilitates interactions with the geosphere over geological timescales.

Conclusions:

• Microbial dormancy plays a critical role in shaping ecosystems and biogeochemical cycles within the Earth system.
• Understanding microbial dormancy is essential for comprehending the co-evolution of Earth and its biosphere.
• Interdisciplinary geosphere-biosphere research is vital for advancing this field.