Vulcanochloris (Trebouxiales, Trebouxiophyceae), a new genus of lichen photobiont from La Palma, Canary Islands, Spain

Vančurová, Lucie; Peksa, Ondřej; Němcová, Yvonne‬; Škaloud, Pavel

doi:10.11646/phytotaxa.219.2.2

Cited by 30 publications

(36 citation statements)

References 42 publications

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“…The Vulcanochloris data set was previously analysed by Vančurová et al. (). The phycobionts belonging to this genus were recovered in 15 Stereocaulon thalli.…”

Section: Resultsmentioning

confidence: 99%

“…Some Vulcanochloris species were recently found in the Czech Republic (Vaiglová, ) as phycobionts of Protoblastenia rupestris , and in Germany and Sweden likely as free‐living soil algae (Ruprecht, Brunauer, & Türk, ). Vulcanochloris can easily be mistaken for Asterochloris because differences in chloroplast morphology (Vančurová et al., ) might be blurred by the lichenized state (Peksa & Škaloud, ). It is likely that various Vulcanochloris species occur also in other areas as phycobionts of Stereocaulon .…”

Section: Discussionmentioning

confidence: 99%

“…The Vulcanochloris samples utilized in this study were derived from the recent analysis of Vančurová et al. (), and therefore, no new phylogenetic inference is presented here. Alignment of ITS rDNA sequences of Stereocaulon mycobionts was prepared.…”

Section: Methodsmentioning

confidence: 99%

“…Multiple lineages of Asterochloris are associated with diverse Stereocaulon species (Nelsen & Gargas, 2008;Peksa & Škaloud, 2011). Chloroidium was found in Stereocaulon nanodes (Beck, 2002), and members of the newly described genus Vulcanochloris are the phycobionts of Stereocaulon vesuvianum (Vančurová, Peksa, Němcová, & Škaloud, 2015).…”

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The complexity of symbiotic interactions influences the ecological amplitude of the host: A case study inStereocaulon(lichenized Ascomycota)

et al. 2018

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Symbiosis plays a fundamental role in nature. Lichens are among the best known, globally distributed symbiotic systems whose ecology is shaped by the requirements of all symbionts forming the holobiont. The widespread lichen-forming fungal genus Stereocaulon provides a suitable model to study the ecology of microscopic green algal symbionts (i.e., phycobionts) within the lichen symbiosis. We analysed 282 Stereocaulon specimens, collected in diverse habitats worldwide, using the algal ITS rDNA and actin gene sequences and fungal ITS rDNA sequences. Phylogenetic analyses revealed a great diversity among the predominant phycobionts. The algal genus Asterochloris (Trebouxiophyceae) was recovered in most sampled thalli, but two additional genera, Vulcanochloris and Chloroidium, were also found. We used variation-partitioning analyses to investigate the effects of climatic conditions, substrate/habitat characteristic, spatial distribution and mycobionts on phycobiont distribution. Based on an analogy, we examined the effects of climate, substrate/habitat, spatial distribution and phycobionts on mycobiont distribution. According to our analyses, the distribution of phycobionts is primarily driven by mycobionts and vice versa. Specificity and selectivity of both partners, as well as their ecological requirements and the width of their niches, vary significantly among the species-level lineages. We demonstrated that species-level lineages, which accept more symbiotic partners, have wider climatic niches, overlapping with the niches of their partners. Furthermore, the survival of lichens on substrates with high concentrations of heavy metals appears to be supported by their association with toxicity-tolerant phycobionts. In general, low specificity towards phycobionts allows the host to associate with ecologically diversified algae, thereby broadening its ecological amplitude.

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“…The Vulcanochloris data set was previously analysed by Vančurová et al. (). The phycobionts belonging to this genus were recovered in 15 Stereocaulon thalli.…”

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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The complexity of symbiotic interactions influences the ecological amplitude of the host: A case study inStereocaulon(lichenized Ascomycota)

et al. 2018

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“…1.1.0) и Mega6 (Tamura et al, 2013;Vančurová et al, 2015). В дополнение к данным фрагментам в последующем анализе использовали 25 последовательностей ДНК различных представителей зеленых водорослей из GenBank, в т. ч. Chlamydomonas reinhardtii AB511845 и AB511846, взятых в качестве внешней группы.…”

Section: краткая характеристика мест отбора проб водорослейunclassified

Soil algae of the oak groves of the Steppe zone of Ukraine

Maltseva¹,

Maltsev²,

Солоненко³

2017

Algologia

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Thorsmoerkia curvula gen. et spec. nov. (Trebouxiophyceae, Chlorophyta), a semi-terrestrial microalga from Iceland exhibits high levels of unsaturated fatty acids

et al. 2021

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A terrestrial green alga was isolated at Iceland, and the strain (SAG 2627) was described for its morphology and phylogenetic position and tested for biotechnological capabilities. Cells had a distinctly curved, crescent shape with conical poles and a single parietal chloroplast. Phylogenetic analyses of 18S rDNA and rbcL markers placed the strain into the Trebouxiophyceae (Chlorophyta). The alga turned out to belong to an independent lineage without an obvious sister group within the Trebouxiophyceae. Based on morphological and phylogenetic data, the strain was described as a new genus and species, Thorsmoerkia curvula gen. et sp. nov. Biomass was generated in column reactors and subsequently screened for promising metabolites. Growth was optimized by pH-regulated, episodic CO2 supplement during the logarithmic growth-phase, and half of the biomass was thereafter exposed to nitrogen and phosphate depletion. The biomass yield reached up to 53.5 mg L−1 day−1. Fatty acid (FA) production peaked at 24 mg L−1 day−1 and up to 83% of all FAs were unsaturated. At the end of the log phase, approximately 45% of dry mass were lipids, including eicosapentaenoic acid. Carotenoid production reached up to 2.94 mg L−1 day−1 but it was halted during the stress phase. The N-linked glycans of glycoproteins were assessed to reveal chemotaxonomic patterns. The study demonstrated that new microalgae can be found at Iceland, potentially suitable for applied purposes. The advantage of T. curvula is its robustness and that significant amounts of lipids are already accumulated during log phase, making a subsequent stress exposure dispensable.

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Vulcanochloris (Trebouxiales, Trebouxiophyceae), a new genus of lichen photobiont from La Palma, Canary Islands, Spain

Cited by 30 publications

References 42 publications

The complexity of symbiotic interactions influences the ecological amplitude of the host: A case study inStereocaulon(lichenized Ascomycota)

The complexity of symbiotic interactions influences the ecological amplitude of the host: A case study inStereocaulon(lichenized Ascomycota)

Soil algae of the oak groves of the Steppe zone of Ukraine

Thorsmoerkia curvula gen. et spec. nov. (Trebouxiophyceae, Chlorophyta), a semi-terrestrial microalga from Iceland exhibits high levels of unsaturated fatty acids

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