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Hints for understanding microalgal phosphate-resilience from Micractinium simplicissimum IPPAS C-2056 (Trebouxiophyceae) isolated from a phosphorus-polluted siteстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Lobakova Elena S., Selyakh Irina O., Semenova Larisa R., Scherbakov Pavel N., Fedorenko Tatiana A., Chekanov Konstantin A., Chivkunova Olga B., Baulina Olga I., Vasilieva Svetlana G., Solovchenko Alexei E., Gorelova Olga A.
- Журнал: Journal of Applied Phycology
- Год издания: 2022
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- DOI: 10.1007/s10811-022-02812-0
- Аннотация: A novel chlorophyte algae strain with outstanding resilience to high inorganic phosphate (Pi) concentrations in the mediumwas isolated from a phosphorus-polluted site near a rock phosphate mine. According to the morphological, ultrastructuraland genetic criteria the strain was assigned to the species Micractinium simplicissimum H.Chae, H.-G. Choi & J.H.Kim. Thisstrain retained cell viability and growth capacity in the presence of Piconcentrations up to 14 g L–1. The uptake of Piby thecells was moderate (equal to ca. 0.7% increase in cell dry weight P percentage) regardless of the amount of the exogenic Piadded to the culture. At the same time, approximately a half of the Piremoved by the M. simplicissimum from the culturewas reversely adsorbed by the cell surface and/or the intercellular matrix and cell debris. The ultrastructural studies indicatedthe metabolically active status of the cells together with the presence of phosphorus-rich (likely, polyphosphate) inclusionsoutside and inside the cells (mainly in vacuoles). We hypothesized that the Piresilience of the studied strain stems fromits high Piadsorption capacity together with its ability to throttle the Piinflux into the cell preventing the rapid buildup ofintracellular Piand potentially toxic short-chain polyphosphate.
- Добавил в систему: Соловченко Алексей Евгеньевич