Life Cycle Dynamics of Phytoplankton Resting Stages

Phytoplankton resting stages are specialised dormant cells produced by diverse microalgae—including diatoms, dinoflagellates and cyanobacteria—that enable survival during prolonged periods of stress. Formation is triggered by environmental cues such as nutrient depletion, light limitation, temperature shifts and even biological interactions like viral infection. Upon entry into the resting stage, cells exhibit marked metabolic reprogramming, reinforced by thickened cell walls and accumulation of energy reserves (lipids, starch and other compounds). These stages settle into sediments to form extensive aquatic “seed banks” that can persist from years to millennia, preserving genetic and phenotypic diversity. Germination of resting stages is delayed until favourable conditions return, at which point rapid emergence replenishes planktonic populations, influences bloom dynamics and drives carbon export through sinking biomass. Globally, seed banks regulate the timing and intensity of harmful algal blooms, support ecosystem recovery after disturbance and provide palaeoecological records of past marine environments. Insights into the life cycle dynamics of resting stages thus underpin predictive models for bloom management, guide conservation strategies and inform reconstruction of environmental change from sediment archives.

Research from Nature Portfolio

No recent Nature Portfolio content available.

Life Cycle Dynamics of Phytoplankton Resting Stages publication trend

The graph below shows the total number of articles in life cycle dynamics of phytoplankton resting stages across all publications each year (not limited to Nature Index journals).

Technical terms

Resting stage: A dormant, non‐dividing cell form that allows phytoplankton to survive adverse conditions.

Germination: The process by which a resting stage resumes metabolic activity and returns to vegetative growth.

Seed bank: The reservoir of resting stages accumulated in sediments, acting as a source for future population recruitment.

Dormancy: A reversible state of greatly reduced metabolic activity that enhances stress tolerance.

Cyst: A type of resting stage characterised by specialised walls and storage materials, common in dinoflagellates and other phytoplankton.

References

1. Gene expression during the formation of resting spores induced by nitrogen starvation in the marine diatom Chaetoceros socialis. BMC Genomics (2023).
2. The long‐term persistence of phytoplankton resting stages in aquatic ‘seed banks’. Biological Reviews (2017).
3. Not dead yet: Diatom resting spores can survive in nature for several millennia. American Journal of Botany (2022).
4. Virus‐induced spore formation as a defense mechanism in marine diatoms. New Phytologist (2020).