Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons
Diatoms are a type of photosynthetic phytoplankton that can acclimate to the light level of their environment. Diatoms from different habitats exhibit different photoacclimation characteristics; those from relatively low-light intensity habitats present relatively high photosynthetic activity, high...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-01-01
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| Series: | Journal of Freshwater Ecology |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/02705060.2020.1835745 |
| _version_ | 1818959477923119104 |
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| author | Pengling Shi Ping Xie Lanhai Liu Jingzhen Cui Xiaoqing Wang Pinhong Yang |
| author_facet | Pengling Shi Ping Xie Lanhai Liu Jingzhen Cui Xiaoqing Wang Pinhong Yang |
| author_sort | Pengling Shi |
| collection | DOAJ |
| description | Diatoms are a type of photosynthetic phytoplankton that can acclimate to the light level of their environment. Diatoms from different habitats exhibit different photoacclimation characteristics; those from relatively low-light intensity habitats present relatively high photosynthetic activity, high light-harvesting pigment (Chla) content, and low xanthophyll content. Conversely, diatoms from high-light intensity environments have lower photosynthetic activity, less Chla content, and efficient xanthophyll cycling. Hence, diatoms can maintain high growth and photosynthetic activity within a wide range of light intensities. Whether the mechanisms of such adaptability are a consequence of biological photoacclimation to different light intensities or interspecific differences is unknown. Here, we show that differences in photoacclimation ability are more significant than species differences. We found similar species compositions in low- and high-light habitats of the Hanjiang River, China; however, there were remarkable differences in rapid light-response curve parameters. The photoacclimation of algae and trends in their photosynthetic activity can be estimated by rapid detection techniques. We isolated three diatom species common to both habitats and grew them under various light intensities, finding that they have an excellent ability to acclimate to local light conditions. Diatoms can use physiological strategies to handle light fluctuations, but only for short periods. Our results provide a theoretical basis for controlling algal blooms through light management. With knowledge of the photoacclimation characteristics of diatoms and according to the availability of local water conservancy facilities, it is possible to use light management to control diatom blooms more efficiently than with conventional techniques, thereby reducing water usage. |
| first_indexed | 2024-12-20T11:42:16Z |
| format | Article |
| id | doaj.art-1ac98296d21c4bb0935d242aead72cc5 |
| institution | Directory Open Access Journal |
| issn | 0270-5060 2156-6941 |
| language | English |
| last_indexed | 2024-12-20T11:42:16Z |
| publishDate | 2020-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Freshwater Ecology |
| spelling | doaj.art-1ac98296d21c4bb0935d242aead72cc52022-12-21T19:41:57ZengTaylor & Francis GroupJournal of Freshwater Ecology0270-50602156-69412020-01-0135139140710.1080/02705060.2020.18357451835745Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisonsPengling Shi0Ping Xie1Lanhai Liu2Jingzhen Cui3Xiaoqing Wang4Pinhong Yang5Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan University of Arts and ScienceDonghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of SciencesCollaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan University of Arts and ScienceCollaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan University of Arts and ScienceCollege of Animal Science and Technology, Hunan Agricultural UniversityCollaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan University of Arts and ScienceDiatoms are a type of photosynthetic phytoplankton that can acclimate to the light level of their environment. Diatoms from different habitats exhibit different photoacclimation characteristics; those from relatively low-light intensity habitats present relatively high photosynthetic activity, high light-harvesting pigment (Chla) content, and low xanthophyll content. Conversely, diatoms from high-light intensity environments have lower photosynthetic activity, less Chla content, and efficient xanthophyll cycling. Hence, diatoms can maintain high growth and photosynthetic activity within a wide range of light intensities. Whether the mechanisms of such adaptability are a consequence of biological photoacclimation to different light intensities or interspecific differences is unknown. Here, we show that differences in photoacclimation ability are more significant than species differences. We found similar species compositions in low- and high-light habitats of the Hanjiang River, China; however, there were remarkable differences in rapid light-response curve parameters. The photoacclimation of algae and trends in their photosynthetic activity can be estimated by rapid detection techniques. We isolated three diatom species common to both habitats and grew them under various light intensities, finding that they have an excellent ability to acclimate to local light conditions. Diatoms can use physiological strategies to handle light fluctuations, but only for short periods. Our results provide a theoretical basis for controlling algal blooms through light management. With knowledge of the photoacclimation characteristics of diatoms and according to the availability of local water conservancy facilities, it is possible to use light management to control diatom blooms more efficiently than with conventional techniques, thereby reducing water usage.http://dx.doi.org/10.1080/02705060.2020.1835745diatomphotoacclimationgrowth activitylight stressphysiological regulation |
| spellingShingle | Pengling Shi Ping Xie Lanhai Liu Jingzhen Cui Xiaoqing Wang Pinhong Yang Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons Journal of Freshwater Ecology diatom photoacclimation growth activity light stress physiological regulation |
| title | Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons |
| title_full | Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons |
| title_fullStr | Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons |
| title_full_unstemmed | Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons |
| title_short | Photoacclimation in freshwater diatoms: interspecific and inter-habitat comparisons |
| title_sort | photoacclimation in freshwater diatoms interspecific and inter habitat comparisons |
| topic | diatom photoacclimation growth activity light stress physiological regulation |
| url | http://dx.doi.org/10.1080/02705060.2020.1835745 |
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