A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species.
| dc.contributor.author | Farrant, J | |
| dc.date.accessioned | 2016-08-01T13:39:12Z | |
| dc.date.available | 2016-08-01T13:39:12Z | |
| dc.date.issued | 2000 | |
| dc.date.updated | 2016-08-01T13:27:45Z | |
| dc.description.abstract | The mechanisms of protection against mechanical and oxidative stress were identified and compared in the angiosperm resurrection plants Craterostigma wilmsii, Myrothamnus flabellifolius and Xerophyta humilis. Drying-induced ultrastructural changes within mesophyll cells were followed to gain an understanding of the mechanisms of mechanical stabilisation. In all three species, water filled vacuoles present in hydrated cells were replaced by several smaller vacuoles filled with non-aqueous substances. In X. humilis, these occupied a large proportion of the cytoplasm, preventing plasmalemma withdrawal and cell wall collapse. In C. wilmsii, vacuoles were small but extensive cell wall folding occurred to prevent plasmalemma withdrawal. In M. flabellifolius, some degree of vacuolation and wall folding occurred, but neither were sufficient to prevent plasmalemma withdrawal. This membrane was not ruptured, possibly due to membrane repair at plasmodesmata junctions where tearing might have occurred. In addition, the extra-cytoplasmic compartment appeared to contain material (possibly similar to that in vacuoles) which could facilitate stabilisation of dry cells. | en_ZA |
| dc.identifier | http://dx.doi.org/10.1023/A:1026534305831 | |
| dc.identifier.apacitation | Farrant, J. (2000). A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species. <i>Plant Ecology</i>, http://hdl.handle.net/11427/21092 | en_ZA |
| dc.identifier.chicagocitation | Farrant, J "A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species." <i>Plant Ecology</i> (2000) http://hdl.handle.net/11427/21092 | en_ZA |
| dc.identifier.citation | Farrant, J. M. (2000). A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species. Plant Ecology, 151(1), 29-39. | en_ZA |
| dc.identifier.issn | 1385-0237 | en_ZA |
| dc.identifier.ris | TY - Journal Article AU - Farrant, J AB - The mechanisms of protection against mechanical and oxidative stress were identified and compared in the angiosperm resurrection plants Craterostigma wilmsii, Myrothamnus flabellifolius and Xerophyta humilis. Drying-induced ultrastructural changes within mesophyll cells were followed to gain an understanding of the mechanisms of mechanical stabilisation. In all three species, water filled vacuoles present in hydrated cells were replaced by several smaller vacuoles filled with non-aqueous substances. In X. humilis, these occupied a large proportion of the cytoplasm, preventing plasmalemma withdrawal and cell wall collapse. In C. wilmsii, vacuoles were small but extensive cell wall folding occurred to prevent plasmalemma withdrawal. In M. flabellifolius, some degree of vacuolation and wall folding occurred, but neither were sufficient to prevent plasmalemma withdrawal. This membrane was not ruptured, possibly due to membrane repair at plasmodesmata junctions where tearing might have occurred. In addition, the extra-cytoplasmic compartment appeared to contain material (possibly similar to that in vacuoles) which could facilitate stabilisation of dry cells. DA - 2000 DB - OpenUCT DP - University of Cape Town J1 - Plant Ecology LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 SM - 1385-0237 T1 - A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species TI - A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species UR - http://hdl.handle.net/11427/21092 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/21092 | |
| dc.identifier.vancouvercitation | Farrant J. A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species. Plant Ecology. 2000; http://hdl.handle.net/11427/21092. | en_ZA |
| dc.language | eng | en_ZA |
| dc.publisher | Springer | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.source | Plant Ecology | en_ZA |
| dc.source.uri | http://link.springer.com/journal/11258 | |
| dc.subject.other | Antioxidants | |
| dc.subject.other | Mechanical stress | |
| dc.subject.other | Oxidative stress | |
| dc.subject.other | Photosynthesis | |
| dc.subject.other | Vacuolation | |
| dc.title | A comparison of mechanisms of desiccation tolerance among three angiosperm resurrection plant species. | en_ZA |
| dc.type | Journal Article | en_ZA |
| uct.type.filetype | Text | |
| uct.type.filetype | Image | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Article | en_ZA |