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Responses of Leaf Anatomy and CO(2)Concentrating Mechanisms of the Aquatic PlantOttelia cordatato Variable CO2

文献类型：期刊论文

作者Huang, Wenmin3,4; Han, Shijuan2,3; Xing, Zhenfei1; Li, Wei3
刊名FRONTIERS IN PLANT SCIENCE
出版日期2020-08-14
卷号11页码:12
ISSN号1664-462X
关键词CO(2)availability C-4 crassulacean acid metabolism bicarbonate use CO(2)concentrating mechanisms organic acids
DOI10.3389/fpls.2020.01261
英文摘要Acclimation to variable CO(2)was studied in floating leaves of the freshwater monocotOttelia cordatagrown in either low or high CO2. The most striking anatomical variations responding to high CO(2)included the enlarged upper epidermal cells and the decreased area of epidermal chloroplasts. Stomata that distributed on the upper surface, and the stomatic chamber area, showed no significant response to high CO2. pH-drift experiments indicated that floating leaves ofO. cordatawere able to use bicarbonate regardless of CO(2)concentrations. Photosynthetic enzyme activities and patterns of organic acids fluctuation confirmed that floating leaves ofO. cordatacan operate CAM only at low CO2, and perform C-4-like metabolism at both high and low CO2. Overall, the present results imply that the floating leaves ofO. cordatadoes not just rely on the atmospheric CO(2)for its inorganic carbon, but is also dependent on CO(2)and bicarbonate in the water. By showing these effects of CO(2)variation, we highlight the need for further experimental studies on the regulatory mechanisms inO. cordatafloating leaves, that prevent futile cycling among the three CO(2)concentrating mechanisms (bicarbonate use, C-4, and CAM metabolism) and the strategy for exploiting atmospheric CO2, as well as studies on the detailed biochemical pathway for C(4)and CAM metabolism in this species.
资助项目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
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:000566114800001
源URL[http://202.127.146.157/handle/2RYDP1HH/15648]  
专题中国科学院武汉植物园
通讯作者Li, Wei
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Ctr Plant Ecol,Core Bot Gardens, Wuhan, Peoples R China
4.Aix Marseille Univ, CNRS, BIP, IMM,FR 3479,UMR 7281, Marseille, France
推荐引用方式
GB/T 7714		 Huang, Wenmin,Han, Shijuan,Xing, Zhenfei,et al. Responses of Leaf Anatomy and CO(2)Concentrating Mechanisms of the Aquatic PlantOttelia cordatato Variable CO2[J]. FRONTIERS IN PLANT SCIENCE,2020,11:12.
APA Huang, Wenmin,Han, Shijuan,Xing, Zhenfei,&Li, Wei.(2020).Responses of Leaf Anatomy and CO(2)Concentrating Mechanisms of the Aquatic PlantOttelia cordatato Variable CO2.FRONTIERS IN PLANT SCIENCE,11,12.
MLA Huang, Wenmin,et al."Responses of Leaf Anatomy and CO(2)Concentrating Mechanisms of the Aquatic PlantOttelia cordatato Variable CO2".FRONTIERS IN PLANT SCIENCE 11(2020):12.

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来源：武汉植物园

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