水生生物学报2017，Vol.41Issue(5)：1091-1096,6.DOI:10.7541/2017.136
群体和单细胞微囊藻对短期温度变化的生理响应
THE PHYSIOLOGICAL RESPONSE OF COLONIAL AND SINGLE-CELLED FORM OF MICROCYSTIS TO SHORT-TERM TEMPERATURE CHANGES
摘要
Abstract
To investigate the effect of short-term temperature changes on the colonial and single-cell Microcysis forms, physiological responses were determined after it was cultured at 10℃, 25℃, and 35℃. The results demonstrated that a decline in chlorophyll-a and an increase in superoxide dismutase (SOD) and mortality rates were found when Micro-cystis was cultured at 10℃ when compared to those cultured at 25℃. Significant decreases in chlorophyll-a and Fv/Fm were observed in the Microcystis single-cell form in contrast to the colonial form, while SOD activity significantly in-creased when Microcystis was inoculated at 10℃. After culturing at 35℃, chlorophyll-a, mortality rate, and SOD levels significantly increased in single-cell Microcystis, however, a significant decrease in chlorophyll-a and mortality rates and a significant increase in catalase activity was found in colonial Microcystis. The results suggested that short-term temperature stress could affect physiological mechanisms in colonial and single-cell Microcystis. However, colonial Microcystis showed more advantages in adapting to short-term temperature stress than the single-cell form.关键词
群体和单细胞微囊藻/温度/生理响应/蓝藻水华Key words
Colonial and single-celled Microcysis/Temperature/Physiological response/Cyanobacterial bloom分类
生物科学引用本文复制引用
付小丽,向蓉,董聪聪,张红波,施军琼,吴忠兴..群体和单细胞微囊藻对短期温度变化的生理响应[J].水生生物学报,2017,41(5):1091-1096,6.基金项目
中央高校基本业务费专项资金 (XDJK2016C111) （XDJK2016C111）
西南大学博士基金(SWU110065)资助 Supported by the Fundamental Research Funds for the Central Universities (XDJK2016C111) （SWU110065）
Doctoral Found Project of China SWU (SWU110065) （SWU110065）
