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Operation of Laboratory Photobioreactors with Online Growth Measurements and Customizable Light Regimes

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Published on: October 28, 2021

Terrestrial and Floating Aquatic Plants Differ in Acclimation to Light Environment.

Marina López-Pozo¹, William W Adams², Stephanie K Polutchko²

¹Department of Plant Biology & Ecology, University of the Basque Country, 48940 Leioa, Spain.

Plants (Basel, Switzerland)

|September 1, 2023

Summary

Terrestrial plants require extensive acclimation to fluctuating light and temperature. Floating aquatic plants like duckweed (Lemna minor) show rapid adaptation due to high photosynthetic capacity and photoprotection.

Keywords:

Lemnaceae phloem photon flux density photoprotection photosynthetic capacity shade sun sunflecks temperature xylem zeaxanthin

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Area of Science:

Plant physiology
Environmental adaptation
Photosynthesis research

Background:

Plants acclimate to environmental changes through adjustments in form and function.
Terrestrial plants require days for acclimation, involving new leaf development.
Acclimation is crucial for optimizing photosynthesis, photoprotection, and vascular capacity.

Purpose of the Study:

To review plant acclimation to light and temperature variations.
To contrast acclimation needs in terrestrial versus floating aquatic plants.
To investigate the adaptive strategies of duckweed (Lemna minor) in variable light environments.

Main Methods:

Review of existing literature on plant acclimation.
Comparative analysis of photosynthetic and photoprotective responses.
Examination of foliar vascular capacity adjustments.

Main Results:

Terrestrial plants need significant acclimation time for light and temperature.
Floating aquatic plants, like Lemna minor, exhibit less need for acclimation to light.
Lemna minor possesses high growth rates, photosynthetic capacity, and efficient photoprotection (xanthophylls).

Conclusions:

Lemna minor maximizes productivity and avoids photoinhibition due to its inherent adaptive traits.
Contrasting responses highlight the necessity for terrestrial plants to experience fluctuations for acclimation.
Acclimatized terrestrial plants better utilize natural environments with fluctuating light.