PSII Photoinhibition and Photoprotection in Three Benthic Diatom Species

Silja Frankenbach authored this dataset on 2026-06-04, examining interspecific diversity in PSII photoinactivation, photorepair, and photoprotection. It compares three estuarine pennate diatom species—Navicula phyllepta, Entomoneis paludosa, and Cylindrotheca closterium—exposed to consecutive daily periods of combined high light and heat stress. The study also evaluates the influence of photoacclimation by comparing cultures acclimated to low-light and high-light regimes.

Use Cases

• Compare interspecific stress tolerance based on PSII photoinactivation and photorepair rates described in the study
• Analyze the role of photoacclimation state on xanthophyll cycle operation under light and heat stress
• Model recovery capacity of benthic vs. tychoplanktonic diatoms after repeated stress events
• Investigate the relationship between diadinoxanthin de-epoxidation and photoprotection efficiency

Strengths

• Focuses on three distinct diatom species with different life strategies (benthic vs. tychoplanktonic)
• Includes data from cultures acclimated to contrasting low-light and high-light regimes
• Examines responses over three consecutive daily stress periods

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• Dataset is very small at 31.7 KB, indicating limited scope

Provenance

Source

figshare

Collection Method

Experimental data from unialgal cultures exposed to controlled light and heat stress.

Freshness

Last updated 2026-06-04 04:27:16; freshness should be verified

Geography

Estuarine intertidal environments (implied).