Unusual carbohydrate pattern in Trentepohlia species

Feige, G. B.; Kremer, Bruno P.

doi:10.1016/s0031-9422(00)83826-1

Cited by 26 publications

(24 citation statements)

References 12 publications

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“…Typical aeroterrestrial green-algal taxa such as Apatococcus , Chloroidium , Coccomyxa , Prasiola , Stichococcus , and Trentepohlia synthesize and accumulate high concentrations of a range of polyols such as glycerol, erythritol, ribitol, arabitol, mannitol, sorbitol, and volemitol (Feige and Kremer, 1980; Gustavs et al, 2010, 2011), and the polyol metabolism forms an integral part of a biochemical protective strategy against water loss. In contrast, marine green macroalgae such as Acrosiphonia , Cladophora , Ulothrix , Ulva , and Urospora lack polyols, and instead synthesize and accumulate other organic compounds such as sucrose, proline, glycine betaine, or dimethylsulfoniopropionate (DMSP; Kirst, 1990; Karsten, 2012).…”

Section: Protective Strategiesmentioning

confidence: 99%

Desiccation stress and tolerance in green algae: consequences for ultrastructure, physiological and molecular mechanisms

Holzinger¹,

Karsten²

2013

Front. Plant Sci.

236

192

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Although most green algae typically occur in aquatic ecosystems, many species also live partly or permanently under aeroterrestrial conditions, where the cells are exposed to the atmosphere and hence regularly experience dehydration. The ability of algal cells to survive in an air-dried state is termed desiccation tolerance. The mechanisms involved in desiccation tolerance of green algae are still poorly understood, and hence the aim of this review is to summarize recent findings on the effects of desiccation and osmotic water loss. Starting from structural changes, physiological, and biochemical consequences of desiccation will be addressed in different green-algal lineages. The available data clearly indicate a range of strategies, which are rather different in streptophycean and non-streptophycean green algae. While members of the Trebouxiophyceae exhibit effective water loss-prevention mechanisms based on the biosynthesis and accumulation of particular organic osmolytes such as polyols, these compounds are so far not reported in representatives of the Streptophyta. In members of the Streptophyta such as Klebsormidium, the most striking observation is the appearance of cross-walls in desiccated samples, which are strongly undulating, suggesting a high degree of mechanical flexibility. This aids in maintaining structural integrity in the dried state and allows the cell to maintain turgor pressure for a prolonged period of time during the dehydration process. Physiological strategies in aeroterrestrial green algae generally include a rapid reduction of photosynthesis during desiccation, but also a rather quick recovery after rewetting, whereas aquatic species are sensitive to drying. The underlying mechanisms such as the affected molecular components of the photosynthetic machinery are poorly understood in green algae. Therefore, modern approaches based on transcriptomics, proteomics, and/or metabolomics are urgently needed to better understand the molecular mechanisms involved in desiccation-stress physiology of these organisms. The very limited existing information is described in the present review.

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Section: Protective Strategiesmentioning

confidence: 99%

Desiccation stress and tolerance in green algae: consequences for ultrastructure, physiological and molecular mechanisms

Holzinger¹,

Karsten²

2013

Front. Plant Sci.

236

192

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“…1967, Lewis and Smith 1967; Trentepohlia sp. : Feige and Kremer 1980; Prasiola crispa : Jacob et al. 1991; other aeroterrestrial green algae: Gustavs et al.…”

Section: Concentrations Of Polyols In the Investigated Trebouxiophycmentioning

confidence: 99%

Polyol Patterns in Biofilm-Forming Aeroterrestrial Green Algae (Trebouxiophyceae, Chlorophyta)1

Gustavs

Görs

Karsten

2011

Journal of Phycology

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The distribution of polyols was examined for the first time in 34 green algal strains from four different clades belonging to the class Trebouxiophyceae, which dominate aeroterrestrial biofilms of many regions. Sorbitol was detected in representatives of the Prasiola clade, while ribitol was present in the Elliptochloris and Watanabea clades. Apatococcus lobatus (Chodat) J. B. Petersen contained erythritol in addition to ribitol. Polyols are considered as effective stress metabolites exerting multiple protective functions in metabolism and hence mainly occur in organisms colonizing extreme environments. In contrast, members of the Chlorella clade, which mainly occur in aquatic habitats, did not contain polyols. Thus, the constitutive presence of specific polyols facilitates a differentiation between species of the Prasiola clade from the Elliptochloris and Watanabea clades, respectively, and further allows differentiation of morphologically converging taxa.

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“…Hence, polyols are also called compatible solutes (Yancey ). Aeroterrestrial members of the Trebouxiophyceae, such as Apatococcus , Chloroidium , Coccomyxa , Prasiola , Rosenvingiella , Stichococcus and Trentepohlia , synthesize a variety of polyols, such as arabitol, erythritol, glycerol, ribitol, D‐sorbitol and volemitol (Feige and Kremer , Gustavs et al. , ).…”

mentioning

confidence: 99%

Polyols and UV‐sunscreens in the Prasiola‐clade (Trebouxiophyceae, Chlorophyta) as metabolites for stress response and chemotaxonomy

Hotter

Glaser

Hartmann

et al. 2018

Journal of Phycology

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In many regions of the world, aeroterrestrial green algae of the Trebouxiophyceae (Chlorophyta) represent very abundant soil microorganisms, and hence their taxonomy is crucial to investigate their physiological performance and ecological importance. Due to a lack in morphological features, taxonomic and phylogenetic studies of Trebouxiophycean algae can be a challenging task. Since chemotaxonomic markers could be a great assistance in this regard, 22 strains of aeroterrestrial Trebouxiophyceae were chemically screened for their polyol‐patterns as well as for mycosporine‐like amino acids (MAAs) in their aqueous extracts using RP‐HPLC and LC‐MS. d‐sorbitol was exclusively detected in members of the Prasiolaceae family. The novel MAA prasiolin and a related compound (“prasiolin‐like”) were present in all investigated members of the Prasiola‐clade, but missing in all other tested Trebouxiophyceae. While prasiolin could only be detected in field material directly after extraction, the “prasiolin‐like” compound present in the other algae was fully converted into prasiolin after 24 h. These findings suggest d‐sorbitol and prasiolin‐like compounds are suitable chemotaxonomic markers for the Prasiolaceae and Prasiola‐clade, respectively. Additional UV‐exposure experiments with selected strains show that MAA formation and accumulation can be induced, supporting their role as UV‐sunscreen.

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Unusual carbohydrate pattern in Trentepohlia species

Cited by 26 publications

References 12 publications

Desiccation stress and tolerance in green algae: consequences for ultrastructure, physiological and molecular mechanisms

Desiccation stress and tolerance in green algae: consequences for ultrastructure, physiological and molecular mechanisms

Polyol Patterns in Biofilm-Forming Aeroterrestrial Green Algae (Trebouxiophyceae, Chlorophyta)1

Polyols and UV‐sunscreens in the Prasiola‐clade (Trebouxiophyceae, Chlorophyta) as metabolites for stress response and chemotaxonomy

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