The environmental cellular stress response: the intertidal as a multistressor model.

Area of Science:

• Environmental Science
• Cellular Biology
• Ecology

Background:

• The natural environment presents multiple simultaneous challenges to cellular function.
• Intertidal organisms are ideal models for studying tolerance to combined stressors due to their dynamic habitat.
• Current research on cellular stress response (CSR) primarily focuses on single stressors, particularly thermal effects.

Purpose of the Study:

• To review the regulation of CSR under multiple abiotic stressors in intertidal organisms.
• To assess the utility of a multistressor approach in understanding wild organism responses.
• To identify gaps in current multistressor research and propose future directions.

Main Methods:

• Review of existing literature on CSR under single and multiple stressors.
• Analysis of three main multistressor approaches: stressors in isolation, combined stressors, and field correlations.
• Evaluation of the strengths and limitations of each approach.

Main Results:

• Single-stressor studies identify shared stress pathways but miss interaction effects.
• Combined stressor studies reveal variable CSR impacts depending on stressor characteristics.
• Field studies identify responsive CSR components but lack causative links.

Conclusions:

• A comprehensive understanding of CSR in natural environments requires integrating laboratory and field-based multistressor studies.
• Linking CSR to whole-organism tolerance through combined approaches is essential.
• Future research should focus on synergistic or antagonistic effects of multiple stressors on CSR and organismal resilience.