Effects of salinity and nutrients on the growth and chlorophyll fluorescence of Caulerpa lentillifera

IOCAS-IR

	Effects of salinity and nutrients on the growth and chlorophyll fluorescence of Caulerpa lentillifera
	Guo H(郭辉); Yao JT(姚建亭); Sun ZM(孙忠民); Duan DL(段德麟)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2015-03-15
出版年	2015
卷号	v.33 期号:02 页码:122-130
文献类型	CNKI期刊论文
摘要	Caulerpa lentillifera is a green algae that distributes worldwide and is cultivated for food. We assessed vegetative propagation of C. lentillifera by measuring the specific growth rate(SGR) and chlorophyll fluorescence of the green algae cultured at different salinities and nutrient levels. The results indicated that C. lentillifera can survive in salinities ranging from 20 to 50,and can develop at salinities of 30 to 40. The maximum SGR for C. lentillifera occurred at a salinity of 35. Both chlorophyll content and the ratio of variable to maximum fluorescence( Fv / Fm) were also at a maximum at a salinity of 35. Photosynthesis was inhibited in salinities greater than 45 and less than 25. Both the maximum SGR and maximum chlorophyll content were found in algae treated with a concentration of 0.5 mmol/L of NO3-N and 0.1 mmol/L of PO 4-P. The photosynthetic capacity of photosystem II(PSII) was inhibited in cultures of C. lentillifera at high nutrient levels. This occurred when NO3-N concentrations were greater than 1.0 mmol/L and when PO4- P concentrations were at 0.4 mmol/L. As there is strong need for large-scale cultivation of C. lentillifera,these data contribute important information to ensure optimal results.
关键词	Caulerpa lentillifera salinity nutrient level specific growth rate(SGR) ratio of variable to maximum fluorescence(Fv/Fm) non-photochemical quenching(NPQ)
CNKI专辑号	A;D;
CNKI专辑名称	基础科学;农业科技;
CNKI专题号	D052;
CNKI专题名称	水产和渔业;
分类号	S917.3
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the Technology Program of Basic Research of Qingdao(No.12-1-4-8-(2)-jch)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/190097
专题	中国科学院海洋研究所
作者单位	1.InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences
推荐引用方式 GB/T 7714	Guo H,Yao JT,Sun ZM,et al. Effects of salinity and nutrients on the growth and chlorophyll fluorescence of Caulerpa lentillifera. 2015.