Photosynthetic and metabolic analyses reveal a higher resistance to salinity in the Pyropia yezoensis (Rhodophyta) blades than in the conchocelis

doi:10.1016/j.algal.2019.101483

CORC > 海洋研究所 > 中国科学院海洋研究所 > 实验海洋生物学重点实验室

	Photosynthetic and metabolic analyses reveal a higher resistance to salinity in the Pyropia yezoensis (Rhodophyta) blades than in the conchocelis
	He, Linwen ; Huang, Aiyou ; Niu, Jianfeng ; Lu, Xiaoping; Xie, Xiujun ; Wang, Guangce 1
刊名	ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
	2019-06-01
卷号	40 页码:9
关键词	C-13 labeling Conchocelis Pyropia yezoensis Salinity Blade
ISSN号	2211-9264
DOI	10.1016/j.algal.2019.101483
通讯作者	Wang, Guangce(gcwang@qdio.ac.cn)
英文摘要	The life cycle of Pyropia yezoensis contains two obviously different stages: the conchocelis and the blade, which have different ploidy and morphology. The conchocelis grows in a calcareous matrix within subtidal zone and cannot live without seawater. However, the blades live on intertidal rocks and experience severe stress conditions at low tide. When exposed to air, external salt concentration increases around the algal tissues. It has been reported that the blade has high tolerance to various stresses, including high salinity stress. However, it is unknown whether carbon fixation still occurs when the blade is exposed to high salinity stress. Furthermore, there has been very little research on the conchocelis response to salt stress. Therefore, it is important to comprehensively compare the responses of the conchocelis and the blades to salinity. In this study, photosynthesis performance, carbon metabolism, and metabolite production were measured. The Y(II) for the conchocelis was almost zero (0.006) after 1 h at 120 practical salinity units (psu), whereas Y(I) was high (0.175). The Y(II) of the blade was only 0.008 whereas its Y(I) was 0.304 after 72 h at 120 psu, which suggests that PSII is more sensitive to salinity than PSI in both the conchocelis and the blade. Higher relative abundance was detected in the blade over the whole experimental period, which showed that the blade had higher carbon fixation efficiency than the conchocelis. The proline and trehalose contents were also higher in the blade, which might explain why the blade can tolerate higher salinities than the conchocelis.
资助项目	National Natural Science Foundation of China[41306151] ; National Natural Science Foundation of China[41876160] ; National Natural Science Foundation of China[41476140] ; National Key R&D Program of China[2018YFD0901500] ; China Postdoctoral Science Foundation[2015M582153] ; Science and Technology Plan of Jiangsu Province[BE2016330]
WOS研究方向	Biotechnology & Applied Microbiology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000468144100007
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/157057]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Wang, Guangce
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	He, Linwen,Huang, Aiyou,Niu, Jianfeng,et al. Photosynthetic and metabolic analyses reveal a higher resistance to salinity in the Pyropia yezoensis (Rhodophyta) blades than in the conchocelis[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2019,40:9.
APA	He, Linwen,Huang, Aiyou,Niu, Jianfeng,Lu, Xiaoping,Xie, Xiujun,&Wang, Guangce.(2019).Photosynthetic and metabolic analyses reveal a higher resistance to salinity in the Pyropia yezoensis (Rhodophyta) blades than in the conchocelis.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,40,9.
MLA	He, Linwen,et al."Photosynthetic and metabolic analyses reveal a higher resistance to salinity in the Pyropia yezoensis (Rhodophyta) blades than in the conchocelis".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 40(2019):9.