Differences in rehydration of three desiccation-tolerant angiosperm species.

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dc.contributor.authorSherwin, H
dc.contributor.authorFarrant, J
dc.date.accessioned2016-07-29T10:39:31Z
dc.date.available2016-07-29T10:39:31Z
dc.date.issued1996
dc.date.updated2016-07-28T13:19:05Z
dc.description.abstractThe rehydration characteristics of the desiccation-tolerant plantsCraterostigma wilmsii andMyrothamnus flabellifolia (homoiochlorophyllous) andXerophyta viscosa (poikilochlorophyllous) were studied to determine differences among them. A desiccation-sensitive plant (Pisum sativum) was used as a control. Recovery of water content, quantum efficiency (FV/FM), photosynthetic pigments and chloroplast ultrastructure as well as damage to the plasmamembrane were studied. P. sativum did not recover after desiccation and considerable damage occurred during rehydration. The desiccation-tolerant plants appeared to differ in their responses to dehydration and rehydration. The small herbaceousC. wilmsii generally showed little damage in the dry state and recovered faster than the other tolerant species.M. flabellifolia took longer to recover thanC. wilmsii probably due to the presence of a woody stem in which dehydration-induced xylem embolisms slowed the rate of recovery. The poikilochlorophyllous speciesX. viscosa took the longest to recover because it took longer to reconstitute the chloroplasts and the photosynthetic pigments. Quantum efficiency recovered in all species before water content and chlorophyll content recovered to control levels. The significance of these different responses to desiccation and recovery from desiccation is discussed.en_ZA
dc.identifierhttp://dx.doi.org/10.1006/anbo.1996.0180
dc.identifier.apacitationSherwin, H., & Farrant, J. (1996). Differences in rehydration of three desiccation-tolerant angiosperm species. <i>Annals of Botany</i>, http://hdl.handle.net/11427/21024en_ZA
dc.identifier.chicagocitationSherwin, H, and J Farrant "Differences in rehydration of three desiccation-tolerant angiosperm species." <i>Annals of Botany</i> (1996) http://hdl.handle.net/11427/21024en_ZA
dc.identifier.citationSherwin, H. W., & Farrant, J. M. (1996). Differences in rehydration of three desiccation-tolerant angiosperm species. Annals of Botany, 78(6), 703-710.en_ZA
dc.identifier.issn0305-7364en_ZA
dc.identifier.ris TY - Journal Article AU - Sherwin, H AU - Farrant, J AB - The rehydration characteristics of the desiccation-tolerant plantsCraterostigma wilmsii andMyrothamnus flabellifolia (homoiochlorophyllous) andXerophyta viscosa (poikilochlorophyllous) were studied to determine differences among them. A desiccation-sensitive plant (Pisum sativum) was used as a control. Recovery of water content, quantum efficiency (FV/FM), photosynthetic pigments and chloroplast ultrastructure as well as damage to the plasmamembrane were studied. P. sativum did not recover after desiccation and considerable damage occurred during rehydration. The desiccation-tolerant plants appeared to differ in their responses to dehydration and rehydration. The small herbaceousC. wilmsii generally showed little damage in the dry state and recovered faster than the other tolerant species.M. flabellifolia took longer to recover thanC. wilmsii probably due to the presence of a woody stem in which dehydration-induced xylem embolisms slowed the rate of recovery. The poikilochlorophyllous speciesX. viscosa took the longest to recover because it took longer to reconstitute the chloroplasts and the photosynthetic pigments. Quantum efficiency recovered in all species before water content and chlorophyll content recovered to control levels. The significance of these different responses to desiccation and recovery from desiccation is discussed. DA - 1996 DB - OpenUCT DP - University of Cape Town J1 - Annals of Botany LK - https://open.uct.ac.za PB - University of Cape Town PY - 1996 SM - 0305-7364 T1 - Differences in rehydration of three desiccation-tolerant angiosperm species TI - Differences in rehydration of three desiccation-tolerant angiosperm species UR - http://hdl.handle.net/11427/21024 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21024
dc.identifier.vancouvercitationSherwin H, Farrant J. Differences in rehydration of three desiccation-tolerant angiosperm species. Annals of Botany. 1996; http://hdl.handle.net/11427/21024.en_ZA
dc.languageengen_ZA
dc.publisherOxford University Pressen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceAnnals of Botanyen_ZA
dc.source.urihttp://aob.oxfordjournals.org/
dc.subject.otherDesiccation-tolerant
dc.subject.otherhomoiochlorophyllous
dc.subject.otherpoikilochlorophyllous
dc.subject.otherchlorophyll
dc.subject.otherchloroplast
dc.titleDifferences in rehydration of three desiccation-tolerant angiosperm species.en_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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