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Exogenous carbon acquisition of photosynthesis in Porphyra haitanensis (Bangiales, Rhodophyta) under emersed state
Zou, DH; Gao, KS; Zou, DH, Shantou Univ, Inst Marine Biol, Guangdong 515063, Peoples R China
2004-02-01
Source PublicationPROGRESS IN NATURAL SCIENCE
ISSN1002-0071
Volume14Issue:2Pages:138-144
AbstractThe photosynthetic performances of Porphyra haitanensis thalli were investigated in order to understand its mechanisms for exogenous carbon acquisition during emersion at low tide. The emersed photosynthesis was studied by altering the pH value in the water film on the thalli surface, treating them with carbonic anhydarase inhibitors (acetazolamide and 6-ethoxyzolamide), adjusting the CO2 concentrations in the air, and comparing the theoretical maximum CO2 supply rates within the adherent water film with the observed photosynthetic CO2 uptake rates. It was found that the principal exogenous inorganic carbon source for the photosynthesis of P. haitanensis during emersion was atmospheric CO2. The driving force of CO2 flux across the water film was the CO2 concentration gradient within it. Carbonic anhydrase accelerated both extracellular and intracellular CO2 transport. The emersed photosynthesis of P. haitanensis was limited by the present atmospheric CO2 level, and would be enhanced by atmospheric CO2 rise that would trigger global warming.; The photosynthetic performances of Porphyra haitanensis thalli were investigated in order to understand its mechanisms for exogenous carbon acquisition during emersion at low tide. The emersed photosynthesis was studied by altering the pH value in the water film on the thalli surface, treating them with carbonic anhydarase inhibitors (acetazolamide and 6-ethoxyzolamide), adjusting the CO2 concentrations in the air, and comparing the theoretical maximum CO2 supply rates within the adherent water film with the observed photosynthetic CO2 uptake rates. It was found that the principal exogenous inorganic carbon source for the photosynthesis of P. haitanensis during emersion was atmospheric CO2. The driving force of CO2 flux across the water film was the CO2 concentration gradient within it. Carbonic anhydrase accelerated both extracellular and intracellular CO2 transport. The emersed photosynthesis of P. haitanensis was limited by the present atmospheric CO2 level, and would be enhanced by atmospheric CO2 rise that would trigger global warming.
SubtypeArticle
KeywordPorphyra Haitanensis Carbon Dioxide Photosynthesis Emersion Carbonic Anhydrase
DepartmentShantou Univ, Inst Marine Biol, Guangdong 515063, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaMultidisciplinary Sciences
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Science & Technology - Other Topics
WOS SubjectMaterials Science, Multidisciplinary ; Multidisciplinary Sciences
WOS IDWOS:000188789400007
WOS KeywordBICARBONATE UTILIZATION ; MARINE MACROALGAE ; CO2 ; CHLOROPHYTA ; ANHYDRASE ; WATER ; PLANT
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9566
Collection期刊论文
Corresponding AuthorZou, DH, Shantou Univ, Inst Marine Biol, Guangdong 515063, Peoples R China
Affiliation1.Shantou Univ, Inst Marine Biol, Guangdong 515063, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Zou, DH,Gao, KS,Zou, DH, Shantou Univ, Inst Marine Biol, Guangdong 515063, Peoples R China. Exogenous carbon acquisition of photosynthesis in Porphyra haitanensis (Bangiales, Rhodophyta) under emersed state[J]. PROGRESS IN NATURAL SCIENCE,2004,14(2):138-144.
APA Zou, DH,Gao, KS,&Zou, DH, Shantou Univ, Inst Marine Biol, Guangdong 515063, Peoples R China.(2004).Exogenous carbon acquisition of photosynthesis in Porphyra haitanensis (Bangiales, Rhodophyta) under emersed state.PROGRESS IN NATURAL SCIENCE,14(2),138-144.
MLA Zou, DH,et al."Exogenous carbon acquisition of photosynthesis in Porphyra haitanensis (Bangiales, Rhodophyta) under emersed state".PROGRESS IN NATURAL SCIENCE 14.2(2004):138-144.
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