Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress
Responses of Ulva prolifera and Ulva linza to Cd2+ stress were studied. We found that the relative growth rate (RGR), Fv/Fm, and actual photochemical efficiency of PSII (Yield) of two Ulvaspecies were decreased under Cd2+ treatments, and these reductions were greater in U. prolifera than in U. linza...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/289537 |
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| author | He-ping Jiang Bing-bing Gao Wen-hui Li Ming Zhu Chun-fang Zheng Qing-song Zheng Chang-hai Wang |
| author_facet | He-ping Jiang Bing-bing Gao Wen-hui Li Ming Zhu Chun-fang Zheng Qing-song Zheng Chang-hai Wang |
| author_sort | He-ping Jiang |
| collection | DOAJ |
| description | Responses of Ulva prolifera and Ulva linza to Cd2+ stress were studied. We found that the relative growth rate (RGR), Fv/Fm, and actual photochemical efficiency of PSII (Yield) of two Ulvaspecies were decreased under Cd2+ treatments, and these reductions were greater in U. prolifera than in U. linza. U. prolifera accumulated more cadmium than U. linza under Cd2+ stress. While U. linza showed positive osmotic adjustment ability (OAA) at a wider Cd2+ range than U. prolifera. U. linza had greater contents of N, P, Na+, K+, and amino acids than U. prolifera. A range of parameters (concentrations of cadmium, Ca2+, N, P, K+, Cl−, free amino acids (FAAs), proline, organic acids and soluble protein, Fv/Fm, Yield, OAA, and K+/Na+) could be used to evaluate cadmium resistance in Ulva by correlation analysis. In accordance with the order of the absolute values of correlation coefficient, contents of Cd2+ and K+, Yield, proline content, Fv/Fm, FAA content, and OAA value of Ulva were more highly related to their adaptation to Cd2+ than the other eight indices. Thus, U. linza has a better adaptation to Cd2+ than U. prolifera, which was due mainly to higher nutrient content and stronger OAA and photosynthesis in U. linza. |
| format | Article |
| id | doaj-art-910c3f238fe143ca954a2ab3e8cdec91 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-910c3f238fe143ca954a2ab3e8cdec912025-02-03T01:31:46ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/289537289537Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium StressHe-ping Jiang0Bing-bing Gao1Wen-hui Li2Ming Zhu3Chun-fang Zheng4Qing-song Zheng5Chang-hai Wang6College of Natural Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCollege of Natural Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCollege of Natural Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCollege of Natural Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaZhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou, Zhejiang 325005, ChinaCollege of Natural Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaCollege of Natural Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, ChinaResponses of Ulva prolifera and Ulva linza to Cd2+ stress were studied. We found that the relative growth rate (RGR), Fv/Fm, and actual photochemical efficiency of PSII (Yield) of two Ulvaspecies were decreased under Cd2+ treatments, and these reductions were greater in U. prolifera than in U. linza. U. prolifera accumulated more cadmium than U. linza under Cd2+ stress. While U. linza showed positive osmotic adjustment ability (OAA) at a wider Cd2+ range than U. prolifera. U. linza had greater contents of N, P, Na+, K+, and amino acids than U. prolifera. A range of parameters (concentrations of cadmium, Ca2+, N, P, K+, Cl−, free amino acids (FAAs), proline, organic acids and soluble protein, Fv/Fm, Yield, OAA, and K+/Na+) could be used to evaluate cadmium resistance in Ulva by correlation analysis. In accordance with the order of the absolute values of correlation coefficient, contents of Cd2+ and K+, Yield, proline content, Fv/Fm, FAA content, and OAA value of Ulva were more highly related to their adaptation to Cd2+ than the other eight indices. Thus, U. linza has a better adaptation to Cd2+ than U. prolifera, which was due mainly to higher nutrient content and stronger OAA and photosynthesis in U. linza.http://dx.doi.org/10.1155/2013/289537 |
| spellingShingle | He-ping Jiang Bing-bing Gao Wen-hui Li Ming Zhu Chun-fang Zheng Qing-song Zheng Chang-hai Wang Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress The Scientific World Journal |
| title | Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress |
| title_full | Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress |
| title_fullStr | Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress |
| title_full_unstemmed | Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress |
| title_short | Physiological and Biochemical Responses of Ulva prolifera and Ulva linza to Cadmium Stress |
| title_sort | physiological and biochemical responses of ulva prolifera and ulva linza to cadmium stress |
| url | http://dx.doi.org/10.1155/2013/289537 |
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