论文
论文标题: Effects of salinity on sprouting and growth of three submerged macrophytes
作者: Xia, Wentong; Zhu, Bin; Qu, Xiao; Liu, Han; Liu, Yinglong; Chen, Xiaofei; Rudstam, Lars G.; Ni, Leyi; Chen, Yushun
出版刊物: ECOHYDROLOGY
出版日期: OCT
出版年份: 2020
卷/期: 7
DOI: 10.1002/eco.2235
论文摘要: Many freshwater ecosystems are facing salinity stress, but limited information is available about its effects on submerged macrophytes. Here, we assessed the effects of salinity on sprouting and growth of three submerged macrophytes-Potamogeton crispus,Hydrilla verticillataandMyriophyllum spicatum. We conducted experiments in the lab and the outdoor platform to test for the sprouting and growth responses of selected macrophytes to a gradient of salinity (0.32-10,000 mg Cl-L-1). Sprouting rate, biomass and other related physiological indices were measured in all treatments. We found that lower salinity (100 mg Cl-L-1) increased the turion sprouting rate, and higher salinity (greater than or equal to 5,000 mg Cl-L-1) significantly inhibited the sprouting ofP. crispusturions.M. spicatumappeared to have higher tolerance of salinity thanH. verticillata. The optimum salinity for the growth ofH. verticillataandM. spicatumwas 500-1,000 mg Cl(-)L(-1)and 100-500 mg Cl-L-1, respectively. Activity of superoxide dismutase (SOD) and production of malondialdehyde (MDA) differed in salinity levels between submerged macrophytes, and higher SOD activity was observed inM. spicatum. This study helped clarify how physiological response mechanisms affecting sprouting and growth of submerged macrophytes are inhibited under high salinity and suggested that SOD plays an important role in the resistance to oxidative stress induced by salinity.
== 实验室与学会 ==
  • == 实验室与学会 ==
  • 水产品种创制与高效养殖全国重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
  • 中国动物学会斑马鱼分会
  • 湖北省暨武汉动物学会
  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
  • == 平台建设 ==
  • “一带一路”海域赤潮数据库
  • 国家水生生物种质资源库
  • 国家斑马鱼资源中心
  • 中国科学院淡水藻种库
  • 中国科学院武汉生命科学大型仪器区域中心
  • 湿地生态系统观测研究野外站联盟
  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
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  • 中国科学院
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