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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, Guangce1
2019-06-01
Source PublicationALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN2211-9264
Volume40Pages:9
Corresponding AuthorWang, Guangce(gcwang@qdio.ac.cn)
AbstractThe 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.
KeywordC-13 labeling Conchocelis Pyropia yezoensis Salinity Blade
DOI10.1016/j.algal.2019.101483
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaBiotechnology & Applied Microbiology
WOS SubjectBiotechnology & Applied Microbiology
WOS IDWOS:000468144100007
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157058
Collection实验海洋生物学重点实验室
Corresponding AuthorWang, Guangce
Affiliation1.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
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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