2022
DOI: 10.3389/fpls.2022.945394
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Temperature- and light stress adaptations in Zygnematophyceae: The challenges of a semi-terrestrial lifestyle

Abstract: Streptophyte green algae comprise the origin of land plants and therefore life on earth as we know it today. While terrestrialization opened new habitats, leaving the aquatic environment brought additional abiotic stresses. More-drastic temperature shifts and high light levels are major abiotic stresses in semi-terrestrial habitats, in addition to desiccation, which has been reviewed elsewhere. Zygnematophyceae, a species-rich class of streptophyte green algae, is considered a sister-group to embryophytes. The… Show more

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Cited by 11 publications
(9 citation statements)
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“…Zygnema is noteworthy among algae for its stress resilience and can grow in extreme habitats such as the Arctic, where it is abundant (Pichrtová et al, 2018; Rippin et al, 2019). Its broad ecological amplitude is confirmed by numerous studies on temperature and light stress (summarized in Permann et al, 2022b) and desiccation stress (Becker et al, 2020). The common ancestor of all four Zygnema strains is inferred to have had 16 significantly expanded orthogroups ( Figure 2A; Table S3B ), including PP2Cs (OG 548), early light-inducible proteins (ELIPs; OG 97), and low-CO2 inducible proteins (LCICs, OG 459).…”
Section: Resultsmentioning
confidence: 80%
“…Zygnema is noteworthy among algae for its stress resilience and can grow in extreme habitats such as the Arctic, where it is abundant (Pichrtová et al, 2018; Rippin et al, 2019). Its broad ecological amplitude is confirmed by numerous studies on temperature and light stress (summarized in Permann et al, 2022b) and desiccation stress (Becker et al, 2020). The common ancestor of all four Zygnema strains is inferred to have had 16 significantly expanded orthogroups ( Figure 2A; Table S3B ), including PP2Cs (OG 548), early light-inducible proteins (ELIPs; OG 97), and low-CO2 inducible proteins (LCICs, OG 459).…”
Section: Resultsmentioning
confidence: 80%
“…Their habitats often exhibit semi-terrestrial conditions, which exposes them to increased abiotic stresses. Leaving the aquatic environment entails higher levels of photosynthetic active as well as ultraviolet radiation, more drastic temperature shifts and desiccation stress (reviewed by Becker et al., 2020 ; Permann et al., 2022 ).…”
Section: Introductionmentioning
confidence: 99%
“…To deal with these challenges, Zygnematophyceae have evolved a variety of different adaptation strategies and avoidance mechanisms. Multiple detailed reviews on the abiotic stress tolerance of streptophyte green algae have been conducted over the past decade (Holzinger & Karsten, 2013 ; Holzinger & Pichrtová, 2016 ; Becker et al, 2020 ; Permann et al, 2022a ). Just recently, a comprehensive study on the morphological, photophysiological, and transcriptomic response of two Zygnematophyceae to desiccation stress was also performed (Rieseberg et al, 2023 ).…”
Section: Introductionmentioning
confidence: 99%