Biodiversity, Adaptation Strategies, and Opportunities in Extreme Marine Environments

Lauritano, Chiara; Coppola, Daniela

doi:10.3390/jmse11122367

JMSE

2023

DOI: 10.3390/jmse11122367

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Biodiversity, Adaptation Strategies, and Opportunities in Extreme Marine Environments

Chiara Lauritano,

Daniela Coppola

Abstract: Extreme marine environments are peculiar ecosystems characterized by extremely variable and hostile physicochemical parameters [...]

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2024

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Salinity Stress Acclimation Strategies in Chlamydomonas sp. Revealed by Physiological, Morphological and Transcriptomic Approaches

Lauritano,

Bazzani,

Montuori

et al. 2024

Marine Drugs

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Climate changes may include variations in salinity concentrations at sea by changing ocean dynamics. These variations may be especially challenging for marine photosynthetic organisms, affecting their growth and distribution. Chlamydomonas spp. are ubiquitous and are often found in extreme salinity conditions. For this reason, they are considered good model species to study salinity adaptation strategies. In the current study, we used an integrated approach to study the Chlamydomonas sp. CCMP225 response to salinities of 20‰ and 70‰, by combining physiological, morphological, and transcriptomic analyses, and comparing differentially expressed genes in the exponential and stationary growth phases under the two salinity conditions. The results showed that the strain is able to grow under all tested salinity conditions and maintains a surprisingly high photosynthetic efficiency even under high salinities. However, at the highest salinity condition, the cells lose their flagella. The transcriptomic analysis highlighted the up- or down-regulation of specific gene categories, helping to identify key genes responding to salinity stress. Overall, the findings may be of interest to the marine biology, ecology, and biotechnology communities, to better understand species adaptation mechanisms under possible global change scenarios and the potential activation of enzymes involved in the synthesis of bioactive molecules.

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Salinity Stress Acclimation Strategies in Chlamydomonas sp. Revealed by Physiological, Morphological and Transcriptomic Approaches

Lauritano,

Bazzani,

Montuori

et al. 2024

Marine Drugs

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show abstract

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Biodiversity, Adaptation Strategies, and Opportunities in Extreme Marine Environments

Abstract: Extreme marine environments are peculiar ecosystems characterized by extremely variable and hostile physicochemical parameters [...]

Cited by 1 publication

References 10 publications

Salinity Stress Acclimation Strategies in Chlamydomonas sp. Revealed by Physiological, Morphological and Transcriptomic Approaches

Salinity Stress Acclimation Strategies in Chlamydomonas sp. Revealed by Physiological, Morphological and Transcriptomic Approaches

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