碳酸氢盐限制和盐胁迫对俄克拉何马皮氯藻生长和光合作用的影响

J. Annan, W. Henley
{"title":"碳酸氢盐限制和盐胁迫对俄克拉何马皮氯藻生长和光合作用的影响","authors":"J. Annan, W. Henley","doi":"10.4314/JGSA.V13I1.69180","DOIUrl":null,"url":null,"abstract":"Photosynthetic organisms rarely experience optimal growth conditions in their natural habitat, and at any given time, two or more physical and chemical variables are likely to be suboptimal. The extreme environment of the Great Salt Plains (GSP) results in low algal biomass, such that natural selection is likely driven by survival of multiple abiotic stresses rather than rapid growth and biotic interactions. The objective of this study is to determine the effect of combined salinity stress and carbon limitation on growth and photosynthesis in the green alga Picochlorum okla-homensis isolated from the GSP habitat. Algal cells were grown in batch cultures under bicar-bonate sufficiency (control) or low bicarbonate at salinities of 10, 50 and100 ppt. in artificial seawater (AS 100) medium. Cells were physiologically characterized by initial growth rates, cell yields, photosynthetic light-response curves (oxygen evolution), pigment composition, and the chlorophyll fluorescence parameters Fv/Fm, �PSII, qP and NPQ. Low bicarbonate and increasing salinity from 10 to 100 ppt, as well as the bicarbonate-salinity interaction resulted in significant lower cell yields and initial growth rates. In general, high salinity resulted in significant primary effects for the majority of variables but a significant effect of bicarbonate and bicarbonate-salinity interaction were less common among the physiological variables. </","PeriodicalId":301438,"journal":{"name":"Journal of the Ghana Science Association","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Bicarbonate Limitation and Salinity Stress on Growth and Photosynthesis in the Green Alga Picochlorum Oklahomensis\",\"authors\":\"J. Annan, W. Henley\",\"doi\":\"10.4314/JGSA.V13I1.69180\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Photosynthetic organisms rarely experience optimal growth conditions in their natural habitat, and at any given time, two or more physical and chemical variables are likely to be suboptimal. The extreme environment of the Great Salt Plains (GSP) results in low algal biomass, such that natural selection is likely driven by survival of multiple abiotic stresses rather than rapid growth and biotic interactions. The objective of this study is to determine the effect of combined salinity stress and carbon limitation on growth and photosynthesis in the green alga Picochlorum okla-homensis isolated from the GSP habitat. Algal cells were grown in batch cultures under bicar-bonate sufficiency (control) or low bicarbonate at salinities of 10, 50 and100 ppt. in artificial seawater (AS 100) medium. Cells were physiologically characterized by initial growth rates, cell yields, photosynthetic light-response curves (oxygen evolution), pigment composition, and the chlorophyll fluorescence parameters Fv/Fm, �PSII, qP and NPQ. Low bicarbonate and increasing salinity from 10 to 100 ppt, as well as the bicarbonate-salinity interaction resulted in significant lower cell yields and initial growth rates. In general, high salinity resulted in significant primary effects for the majority of variables but a significant effect of bicarbonate and bicarbonate-salinity interaction were less common among the physiological variables. </\",\"PeriodicalId\":301438,\"journal\":{\"name\":\"Journal of the Ghana Science Association\",\"volume\":\"6 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Ghana Science Association\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4314/JGSA.V13I1.69180\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Ghana Science Association","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/JGSA.V13I1.69180","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

光合作用生物在其自然栖息地很少经历最佳生长条件,在任何给定的时间,两个或更多的物理和化学变量可能不是最佳的。大盐平原(GSP)的极端环境导致藻类生物量低,因此自然选择可能是由多种非生物胁迫的生存而不是快速生长和生物相互作用驱动的。本研究的目的是确定盐胁迫和碳限制对从GSP生境分离的绿藻(Picochlorum oklahoma -homensis)生长和光合作用的影响。藻类细胞在碳酸氢盐充足(对照)或低碳酸氢盐浓度为10、50和100 ppt的条件下分批培养。在人工海水(as100)培养基中。细胞的生理特征包括初始生长速率、细胞产量、光合光响应曲线(析氧)、色素组成和叶绿素荧光参数Fv/Fm、PSII、qP和NPQ。低碳酸氢盐和从10到100 ppt的盐度增加,以及碳酸氢盐-盐度相互作用导致细胞产量和初始生长速率显著降低。总的来说,高盐度对大多数变量都有显著的主要影响,但在生理变量中,碳酸氢盐和碳酸氢盐-盐度相互作用的显著影响不太常见。本文章由计算机程序翻译,如有差异,请以英文原文为准。
分享
查看原文 本刊更多论文
Effects of Bicarbonate Limitation and Salinity Stress on Growth and Photosynthesis in the Green Alga Picochlorum Oklahomensis
Photosynthetic organisms rarely experience optimal growth conditions in their natural habitat, and at any given time, two or more physical and chemical variables are likely to be suboptimal. The extreme environment of the Great Salt Plains (GSP) results in low algal biomass, such that natural selection is likely driven by survival of multiple abiotic stresses rather than rapid growth and biotic interactions. The objective of this study is to determine the effect of combined salinity stress and carbon limitation on growth and photosynthesis in the green alga Picochlorum okla-homensis isolated from the GSP habitat. Algal cells were grown in batch cultures under bicar-bonate sufficiency (control) or low bicarbonate at salinities of 10, 50 and100 ppt. in artificial seawater (AS 100) medium. Cells were physiologically characterized by initial growth rates, cell yields, photosynthetic light-response curves (oxygen evolution), pigment composition, and the chlorophyll fluorescence parameters Fv/Fm, �PSII, qP and NPQ. Low bicarbonate and increasing salinity from 10 to 100 ppt, as well as the bicarbonate-salinity interaction resulted in significant lower cell yields and initial growth rates. In general, high salinity resulted in significant primary effects for the majority of variables but a significant effect of bicarbonate and bicarbonate-salinity interaction were less common among the physiological variables.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
0.10
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信