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Article: Mixotrophic growth modifies the response of Spirulina (Arthrospira) platensis (Cyanobacteria) cells to light

TitleMixotrophic growth modifies the response of Spirulina (Arthrospira) platensis (Cyanobacteria) cells to light
Authors
KeywordsGrowth rate
Mixotrophic
Photoinhibition
Photosynthesis
PS II
Spirulina (Arthrospira) platensis
Issue Date2000
PublisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JPY
Citation
Journal Of Phycology, 2000, v. 36 n. 4, p. 675-679 How to Cite?
AbstractSpirulina (Arthrospira) platensis (Nordstedt) Geitlet cells grown under mixotrophic conditions exhibit a modified response to light. The maximal photosynthetic rate and the light saturation value of mixotrophic cultures were higher than those of the photoautotrophic cultures. Dark respiration and light compensation point were also significantly higher in the mixotrophically grown cells. As expected, the mixotrophic cultures grew faster and achieved a higher biomass concentration than the photoautotrophic cultures. In contrast, the growth rate of the photoautotrophic cultures was more sensitive to light. The differences between the two cultures were also apparent in their responses to exposure to high photon flux density of 3000 μmol·m-2·s-1. The light-dependent O2 evolution rate and the maximal efficiency of photosystem II photochemistry declined more rapidly in photoautotrophically grown than in mixotrophically grown cells as a result of exposure to high photon flux density. Although both cultures recovered from the high photon flux density stress, the mixotrophic culture recovered faster and to a higher extent. Based on the above results, growth of S. platensis with a fixed carbon source has a significant effect on photosynthetic activity.
Persistent Identifierhttp://hdl.handle.net/10722/68568
ISSN
2015 Impact Factor: 2.536
2015 SCImago Journal Rankings: 1.314
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorVonshak, Aen_HK
dc.contributor.authorCheung, SMen_HK
dc.contributor.authorChen, Fen_HK
dc.date.accessioned2010-09-06T06:05:45Z-
dc.date.available2010-09-06T06:05:45Z-
dc.date.issued2000en_HK
dc.identifier.citationJournal Of Phycology, 2000, v. 36 n. 4, p. 675-679en_HK
dc.identifier.issn0022-3646en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68568-
dc.description.abstractSpirulina (Arthrospira) platensis (Nordstedt) Geitlet cells grown under mixotrophic conditions exhibit a modified response to light. The maximal photosynthetic rate and the light saturation value of mixotrophic cultures were higher than those of the photoautotrophic cultures. Dark respiration and light compensation point were also significantly higher in the mixotrophically grown cells. As expected, the mixotrophic cultures grew faster and achieved a higher biomass concentration than the photoautotrophic cultures. In contrast, the growth rate of the photoautotrophic cultures was more sensitive to light. The differences between the two cultures were also apparent in their responses to exposure to high photon flux density of 3000 μmol·m-2·s-1. The light-dependent O2 evolution rate and the maximal efficiency of photosystem II photochemistry declined more rapidly in photoautotrophically grown than in mixotrophically grown cells as a result of exposure to high photon flux density. Although both cultures recovered from the high photon flux density stress, the mixotrophic culture recovered faster and to a higher extent. Based on the above results, growth of S. platensis with a fixed carbon source has a significant effect on photosynthetic activity.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JPYen_HK
dc.relation.ispartofJournal of Phycologyen_HK
dc.subjectGrowth rateen_HK
dc.subjectMixotrophicen_HK
dc.subjectPhotoinhibitionen_HK
dc.subjectPhotosynthesisen_HK
dc.subjectPS IIen_HK
dc.subjectSpirulina (Arthrospira) platensisen_HK
dc.titleMixotrophic growth modifies the response of Spirulina (Arthrospira) platensis (Cyanobacteria) cells to lighten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-3646&volume=36&spage=675&epage=679&date=2001&atitle=Mixotrophic+growth+modifies+the+response+of+Spirulina+(Arthrospira)+platensis+(cyanobacteria)+cells+to+lighten_HK
dc.identifier.emailChen, F: sfchen@hku.hken_HK
dc.identifier.authorityChen, F=rp00672en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1529-8817.2000.99198.xen_HK
dc.identifier.scopuseid_2-s2.0-0343341607en_HK
dc.identifier.hkuros61512en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0343341607&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume36en_HK
dc.identifier.issue4en_HK
dc.identifier.spage675en_HK
dc.identifier.epage679en_HK
dc.identifier.isiWOS:000089178700007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridVonshak, A=7004020202en_HK
dc.identifier.scopusauthoridCheung, SM=7202472744en_HK
dc.identifier.scopusauthoridChen, F=7404907980en_HK

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