Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia

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dc.contributor.authorMoore, John P
dc.contributor.authorHearshaw, Meredith
dc.contributor.authorRavenscroft, Neil
dc.contributor.authorLindsey, George G
dc.contributor.authorFarrant, Jill M
dc.contributor.authorBrandt, Wolf F
dc.date.accessioned2016-07-26T09:15:58Z
dc.date.available2016-07-26T09:15:58Z
dc.date.issued2007
dc.date.updated2016-07-13T10:03:52Z
dc.description.abstractLight microscopy and low-temperature scanning electron microscopy were used to systematically compare the surface and internal ultrastructures of hydrated and desiccated leaves of the resurrection plant Myrothamnus flabellifolia (Welw.). This revealed that leaf tissue underwent considerable shrinkage and collapse on desiccation but was supported by a framework of vascular and sclerenchymous tissue, which is responsible for the fan-like shape of the leaves. In addition, the leaf ribs were covered with wax and an internal wax cuticle was observed. Biochemical analysis showed that the cyanidin 3-glucoside content increased on desiccation as did the trehalose and sucrose contents. Salt deposits were observed at the apices of desiccated leaves in the proximity of hydathode-like structures. We propose that this might regulate the leaf salt content since decreased intracellular cation concentration was observed in desiccated leaves. We believe that these unique adaptations contribute to the remarkable desiccation-tolerance properties of this plant.en_ZA
dc.identifierhttp://dx.doi.org/10.1071/BT06172
dc.identifier.apacitationMoore, J. P., Hearshaw, M., Ravenscroft, N., Lindsey, G. G., Farrant, J. M., & Brandt, W. F. (2007). Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia. <i>Australian Journal of Botany</i>, http://hdl.handle.net/11427/20746en_ZA
dc.identifier.chicagocitationMoore, John P, Meredith Hearshaw, Neil Ravenscroft, George G Lindsey, Jill M Farrant, and Wolf F Brandt "Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia." <i>Australian Journal of Botany</i> (2007) http://hdl.handle.net/11427/20746en_ZA
dc.identifier.citationMoore, J. P., Hearshaw, M., Ravenscroft, N., Lindsey, G. G., Farrant, J. M., & Brandt, W. F. (2007). Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia. Australian Journal of Botany, 55(4), 482-491.en_ZA
dc.identifier.issn0067-1924en_ZA
dc.identifier.ris TY - Journal Article AU - Moore, John P AU - Hearshaw, Meredith AU - Ravenscroft, Neil AU - Lindsey, George G AU - Farrant, Jill M AU - Brandt, Wolf F AB - Light microscopy and low-temperature scanning electron microscopy were used to systematically compare the surface and internal ultrastructures of hydrated and desiccated leaves of the resurrection plant Myrothamnus flabellifolia (Welw.). This revealed that leaf tissue underwent considerable shrinkage and collapse on desiccation but was supported by a framework of vascular and sclerenchymous tissue, which is responsible for the fan-like shape of the leaves. In addition, the leaf ribs were covered with wax and an internal wax cuticle was observed. Biochemical analysis showed that the cyanidin 3-glucoside content increased on desiccation as did the trehalose and sucrose contents. Salt deposits were observed at the apices of desiccated leaves in the proximity of hydathode-like structures. We propose that this might regulate the leaf salt content since decreased intracellular cation concentration was observed in desiccated leaves. We believe that these unique adaptations contribute to the remarkable desiccation-tolerance properties of this plant. DA - 2007 DB - OpenUCT DP - University of Cape Town J1 - Australian Journal of Botany LK - https://open.uct.ac.za PB - University of Cape Town PY - 2007 SM - 0067-1924 T1 - Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia TI - Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia UR - http://hdl.handle.net/11427/20746 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/20746
dc.identifier.vancouvercitationMoore JP, Hearshaw M, Ravenscroft N, Lindsey GG, Farrant JM, Brandt WF. Desiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifolia. Australian Journal of Botany. 2007; http://hdl.handle.net/11427/20746.en_ZA
dc.languageengen_ZA
dc.publisherCSIRO Publishingen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceAustralian Journal of Botanyen_ZA
dc.source.urihttp://www.publish.csiro.au/?nid=65
dc.titleDesiccation-induced ultrastructural and biochemical changes in the leaves of the resurrection plant Myrothamnus flabellifoliaen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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