首页 | 期刊介绍 | 编委会 | 道德声明 | 投稿指南 | 常用下载 | 过刊浏览 | 期刊订阅 | In English
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 58次   下载 81 本文二维码信息
码上扫一扫!
分享到: 微信 更多
离体培养的虫黄藻(Symbiodinium voratum)对温度和光照的生理响应
赵振鲁1,2, 刘甲星1, 张跃环1, 刘甜甜3, 谭烨辉1,2
1.中国科学院南海海洋研究所 热带海洋生物资源与生态重点实验室 广州 510301;2.中国科学院大学 北京 100049;3.中山大学环境科学与工程学院 广州 510275
摘要:
虫黄藻是珊瑚礁生态系统中最主要的初级生产者,并在珊瑚礁的建造过程中起着关键作用。为探究虫黄藻对温度和光照的生理响应,本研究以E型虫黄藻(Symbiodinium voratum)为实验对象,通过室内培养,并结合谢尔福德耐受性定律建立了基于温度的虫黄藻生长速率的耐受性模型。结果显示:E型虫黄藻在光强90μE培养下,最适生长温度为22.56℃,适温范围为16.72—28.40℃;温度培养实验中,23℃时,虫黄藻中有机碳(C)、氮(N)积累最多; 27℃时,虫黄藻PSⅡ的原初光能转化效率(Fv/Fm)显著高于其余两个温度组;光照培养实验中,E型虫黄藻在温度23℃培养下,光强的适宜范围为100—200μE;并通过提高细胞内叶绿素a含量和Fv/Fm两种方式应对外界光照不足。
关键词:  虫黄藻  温度  光强  生理响应
DOI:10.11693/hyhz20180900229
分类号:Q142.9
基金项目:国家科技基础资源调查专项,2017FY201404号;科技部基础性工作专项“我国近海重要海草资源及生境调查”项目,2015FY110600号;国家自然科学基金,41806198号;公益性行业(农业)科研专项,201403008号。
PHYSIOLOGICAL RESPONSES OF SYMBIODINIUM VORATUM TO TEMPERATURE AND LIGHT INTENSITY
ZHAO Zhen-Lu1,2, LIU Jia-Xing1, ZHANG Yue-Huan1, LIU Tian-Tian3, TAN Ye-Hui1,2
1.Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;2.University of Chinese Academy of Sciences, Beijing 100049, China;3.School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
Abstract:
The genus Symbiodinium is an important primary producer in coral reef ecosystem and plays a key role in coral reef construction. Yet knowledge of growth kinetics of these photosynthetic endosymbionts and their physiological responses is limited. To study the physiological responses to temperature and light intensity of Symbiodinium, Symbiodinium voratum (Clade E) was cultured in laboratory. We established a tolerance model between temperature and specific growth rate based on experimental results and the Shelford's Law of Tolerance. The results show that the temperature tolerance model agreed with the Shelford's Law of Tolerance. The optimum temperature and suitable temperature range of S. voratum growth were 22.56℃ and 16.72-28.40℃, respectively. The accumulations of organic carbon and nitrogen peaked at 23℃, and Fv/Fm (the maximum quantum efficiency of PSⅡ photochemistry) at 27℃. The suitable light intensity at 23℃ was 100-200μE, while at a lower light intensity, S. voratum could increase its chlorophyll a per cell and Fv/Fm in respond to the environmental change.
Key words:  Symbiodinium voratum  temperature  light intensity  physiological responses
版权所有 《海洋与湖沼》编辑部 Copyright©2008 All Rights Reserved
主管单位:中国科学技术协会 主办单位:中国海洋湖沼学会 中国科学院海洋研究所
地址:青岛市南海路七号  邮编:266071  电话:0532-82898753  E-mail:ols@qdio.ac.cn
技术支持:北京勤云科技发展有限公司