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Response of anatomy and CO2-concentrating mechanisms to variable CO2 in linear juvenile leaves of heterophyllous Ottelia alismoides: Comparisons with other leaf types

文献类型：期刊论文

作者Han, Shijuan2,3; Xing, Zhenfei1; Li, Wei2; Huang, Wenmin2
刊名ENVIRONMENTAL AND EXPERIMENTAL BOTANY
出版日期2020-11-01
卷号179页码:10
ISSN号0098-8472
关键词Linear juvenile leaves Carbon dioxide-concentrating mechanisms (CCMs) Leaf anatomy Chloroplast ultrastructure C-4 photosynthesis Heterophyll
DOI10.1016/j.envexpbot.2020.104194
通讯作者Huang, Wenmin(huangwm@wbgcas.cn)
英文摘要Ottelia alismoides (Hydrocharitaceae) is a heterophyllous freshwater macrophyte which shows heteroblastic heterophylly during plant development, and differs in carbon dioxide-concentrating mechanisms (CCMs) at different stage. This study investigated the anatomy and CCMs in the first stage of leaf during O. alismoides development, linear juvenile leaves. It comprised three layers of cell and enriched air spaces, but not significantly affected by CO2 concentration ([CO2]), while leaf thickness and chloroplast ultrastructure were significantly affected by [CO2]. The linear juvenile leaves could perform C-4 photosynthesis at low [CO2]; the two types of chloroplasts distributed in epidermal and mesophyll cells respectively, with different shape and starch content, might provide the structural basis for C-4 operation. The pH-drift data showed that the linear juvenile leaves could use HCO3- regardless of [CO2]. Whereas, CAM and C-4 operation could only be induced at low [CO2]. When compared the CCMs among all the heteromorphic leaves in O. alismoides, it is shown that CCMs in the O. alismoides heteromorphic leaves become more diversified during the plants development: HCO3- use was present in all leaf-types regardless of the [CO2]; CAM and C-4 were only induced at low [CO2] and became more efficient in mature leaves. The anatomy was also regulated to adapt to the functions of CCMs, and ultimately, the ovate mature leaves can operate C-4 constitutively.
WOS关键词CRASSULACEAN ACID METABOLISM ; CARBON-CONCENTRATING MECHANISMS ; FRESH-WATER MACROPHYTE ; C-4 PHOTOSYNTHESIS ; KRANZ ANATOMY ; INORGANIC CARBON ; AQUATIC PLANT ; EGERIA-DENSA ; CAM ; GROWTH
资助项目Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB31000000] ; National Natural Science Foundation of China[31970368]
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000571483200006
资助机构Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.ihb.ac.cn/handle/342005/38912]  
专题水生生物研究所_淡水生态学研究中心_期刊论文
通讯作者Huang, Wenmin
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Ctr Plant Ecol, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol,Core Bot Garde, Wuhan 430074, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Han, Shijuan,Xing, Zhenfei,Li, Wei,et al. Response of anatomy and CO2-concentrating mechanisms to variable CO2 in linear juvenile leaves of heterophyllous Ottelia alismoides: Comparisons with other leaf types[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2020,179:10.
APA Han, Shijuan,Xing, Zhenfei,Li, Wei,&Huang, Wenmin.(2020).Response of anatomy and CO2-concentrating mechanisms to variable CO2 in linear juvenile leaves of heterophyllous Ottelia alismoides: Comparisons with other leaf types.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,179,10.
MLA Han, Shijuan,et al."Response of anatomy and CO2-concentrating mechanisms to variable CO2 in linear juvenile leaves of heterophyllous Ottelia alismoides: Comparisons with other leaf types".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 179(2020):10.

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来源：水生生物研究所

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