摘要
以连云港海域两种主要类别浒苔为研究对象,考察氮、磷营养盐的添加对浒苔叶绿素a含量的影响。结果表明,添加氮能够明显提高浒苔叶绿素a含量,效果优于磷的添加。缘管浒苔较浒苔属浒苔对营养盐的利用效率更好,叶绿素a含量提升更高。两种氮源利用实验显示,浒苔对NH_4^+的吸收速率高于对NO_3^-的吸收,NH_4^+对浒苔叶绿素a的累积作用更加明显,NH_4^+与NO_3^-等比例存在时,NH_4^+与NO_3^-存在一定竞争抑制作用。
In order to study the effects of nitrogen and phosphorus on chlorophyll a content of Enteromorpha sp.in Lianyungang coastal waters,experiments with various N or P concentrations were conducted.The results showed that the chlorophyll a content was accelerated significantly upon the addition of N compared with P.Enteromorpha linza had better nutrient utilization efficiency than Enteromorpha prolifera.The experiments of nitrogen uptake in the forms of NH4+ and NO3- indicated that the absorption rate of NH4+ was greater than that of NO3-,and NH4+ was more beneficial to the accumulation of chlorophyll a.Decrease in absorption efficiency due to competition inhibition under equal-ratio of NH4+ and NO3- condition.
作者
王春艳
宋建阳
WANG Chun-yan;SONG Jian-yang(School of Civil Engineering, Nanyang Institute of Technology, Nanyang 473004, China;Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang 473004, China;Department of Biology and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, China)
出处
《南阳理工学院学报》
2018年第6期90-94,共5页
Journal of Nanyang Institute of Technology
基金
国家自然科学基金(NSFC41731282)
江苏省海洋生物技术重点实验室开放基金(2013HS012)
关键词
浒苔
叶绿素A
N
P
Enteromorpha sp
chlorophyll a
N
P
作者简介
王春艳(1979-),女,博士,副教授,主要研究方向:环境科学与程。E-mail:wggbb@163.com.
