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Description of a new species of soil algae, Parietochloris grandis sp. nov., and study of its fatty acid profiles under different culturing conditions

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dc.contributor.author Maltsev Y.
dc.contributor.author Gusev E.
dc.contributor.author Maltseva I.
dc.contributor.author Kulikovskiy M.
dc.contributor.author Namsaraev Z.
dc.contributor.author Petrushkina M.
dc.contributor.author Filimonova A.
dc.contributor.author Sorokin B.
dc.contributor.author Golubeva A.
dc.contributor.author Butaeva G.
dc.contributor.author Khrushchev A.
dc.contributor.author Zotko N.
dc.contributor.author Kuzmin D.
dc.date.accessioned 2019-01-22T20:57:42Z
dc.date.available 2019-01-22T20:57:42Z
dc.date.issued 2018
dc.identifier.issn 2211-9264
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/149631
dc.description.abstract © 2018 Elsevier B.V. The new species Parietochloris grandis sp. nov. is described from forest soil in the Dnipropetrovsk region, Ukraine. The description is based on morphological features and the phylogenetic analysis of partial SSU rDNA and rbcL genes. Phylogenetic analysis places P. grandis in the Parietochloris clade, within the family Trebouxiophyceae. The novel strain formed a strongly supported monophyletic lineage with the type species of Parietochloris, P. alveolaris. P. grandis differed from other species in the Parietochloris clade by the size and form of vegetative cells and the large number of zoospores in zoosporangia. A number of experiments with different phosphates and nitrates concentrations were conducted to evaluate changes in fatty acid profile and biomass. The dominant fatty acids during cultivation on standard BG-11 medium, as well as with the phosphates concentrations ranged from 0.22 to 2 mM, were linoleic acid (24–25%), palmitic acid (12–14%), linolenic acid (9–12%), and oleic acid (7–11%). The content of arachidonic acid and eicosapentaenoic acid ranged from 3.5 to 4.5% and 0.7% to 0.8%, respectively. The fatty acid profile and total fatty acids varied significantly under different nutrient deficiency. The greatest variation was found for oleic acid (9–46%) and linolenic acid (2–13%). The percentage of arachidonic acid was the highest with a standard nitrates concentration in the medium (5%) and the lowest in the absence of phosphates and nitrates (1.3–1.5%), but the absolute content in dry biomass was similar in all variants of the experiment (6.5–9.3 mg g−1 dry weight). The absence of nitrogen and both nitrogen and phosphorus led to a 3–fold increase in TFA in comparison with the control. Thus, this strain can be considered in biotechnological application as a potential producer of the essential linoleic acid or oleic acid.
dc.relation.ispartofseries Algal Research
dc.subject Fatty acid profile
dc.subject New species
dc.subject Nutrient starvation
dc.subject Taxonomy
dc.subject Trebouxiophyceae
dc.title Description of a new species of soil algae, Parietochloris grandis sp. nov., and study of its fatty acid profiles under different culturing conditions
dc.type Article
dc.relation.ispartofseries-volume 33
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 358
dc.source.id SCOPUS22119264-2018-33-SID85048720927


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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