دورية أكاديمية
Freshwater Salinization Impacts the Interspecific Competition between Microcystis and Scenedesmus
| العنوان: | Freshwater Salinization Impacts the Interspecific Competition between Microcystis and Scenedesmus |
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| المؤلفون: | Tianheng Gao, Yinkang Li, Wenlei Xue, Yueqiang Pan, Xuexia Zhu |
| المصدر: | Water, Vol 15, Iss 7, p 1331 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Hydraulic engineering LCC:Water supply for domestic and industrial purposes |
| مصطلحات موضوعية: | salinization, interspecific competition, Microcystis aeruginosa, Scenedesmus obliquus, photosynthesis, morphology, Hydraulic engineering, TC1-978, Water supply for domestic and industrial purposes, TD201-500 |
| الوصف: | Freshwater salinization is a growing environmental issue caused by various anthropic or natural factors that lead to changes in water chemistry and physical conditions, affecting the survival and diversity of phytoplankton. In this study, we tested the physiological, morphological and interspecific competition of the freshwater cyanobacterium Microcystis aeruginosa and the green algae Scenedesmus obliquus to salinity stress. Results demonstrated that increasing salinity had a significant negative effect on the growth of M. aeruginosa and S. obliquus. M. aeruginosa showed a decline in growth rate with increasing salinity, while S. obliquus showed a lower growth rate under salinity stress but with no significant difference between the two salinity groups. In cocultures, S. obliquus outcompeted M. aeruginosa, and the displacement was accelerated with increasing salinity. The photosynthetic performance of both algae was affected by salinity, the presence of competitors, and the cultivation time. S. obliquus showed morphological variations under salinity stress and the presence of a competitor. The study suggests that salinity stress and competition can have a significant impact on the growth and performance of algae species. The findings of our study suggest that the salinization of freshwater can impact the interspecific interactions among phytoplankton, which play a crucial role in the functioning of freshwater ecosystems. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2073-4441 |
| Relation: | https://www.mdpi.com/2073-4441/15/7/1331; https://doaj.org/toc/2073-4441 |
| DOI: | 10.3390/w15071331 |
| URL الوصول: | https://doaj.org/article/ac83a758b16c453b8bd332d5d2705bb4 |
| رقم الأكسشن: | edsdoj.83a758b16c453b8bd332d5d2705bb4 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20734441 |
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| DOI: | 10.3390/w15071331 |