Ecophysiology of Deuterostichococcus epilithicus (Chlorophyta, Trebouxiophyceae), isolated from surface snow at Rhodope Mountains, Bulgaria
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00618159" target="_blank" >RIV/67985939:_____/25:00618159 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/25:43910788 RIV/00216208:11310/25:10515049
Result on the web
<a href="https://doi.org/10.1080/09670262.2024.2447264" target="_blank" >https://doi.org/10.1080/09670262.2024.2447264</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/09670262.2024.2447264" target="_blank" >10.1080/09670262.2024.2447264</a>
Alternative languages
Result language
angličtina
Original language name
Ecophysiology of Deuterostichococcus epilithicus (Chlorophyta, Trebouxiophyceae), isolated from surface snow at Rhodope Mountains, Bulgaria
Original language description
A green microalga of genus Deuterostichococcus (Chlorophyta, Trebouxiophyceae) strain CCALA 1137, was discovered on the surface of a temporary snow field in Bulgaria. In its natural environment, this alga must cope in two distinct habitats: cold snow in spring and warm soil in summer. This study evaluated the strain's growth optima and limits while also employing a biotechnological approach to investigate its responses to elevated temperatures. Cultivation experiments were conducted in crossed gradients of temperature, irradiance and nutrients to determine the growth requirements of this newly identified strain. The alga was characterized as psychrotolerant, with an optimal temperature range of 14-16 degrees C, exhibiting a preference for high irradiance and moderate nutrients for growing. Survival mechanisms at higher temperatures were examined by assessing the growth rate, biochemical composition, and efficiency of the antioxidant enzymatic defence system. The greatest biomass accumulation occurred at 17, 21 and 28 degrees C. Though no significant differences in the quantities of cellular lipids, carbohydrates, and carotenoids were observed at these temperatures, notable variations were reported in enzyme activities. High levels of superoxide dismutase, catalase, peroxidase, and glutathione reductase were detected at 17 and 21 degrees C, whereas these enzyme activities were lower at 28 degrees C. A suppressed growth rate at 25 degrees C correlated with reduced lipid and carbohydrate content in the biomass, and decreased activity of all antioxidant enzymes. These findings suggest that the alga's observed physiological responses contribute to its tolerance and capacity to adapt to the varying conditions typical for its natural habitat.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10601 - Cell biology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Journal of Phycology
ISSN
0967-0262
e-ISSN
1469-4433
Volume of the periodical
60
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
103-114
UT code for WoS article
001432783500001
EID of the result in the Scopus database
2-s2.0-105001984120