Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis
| dc.contributor.author | Balsamo, Ronald A | |
| dc.contributor.author | Vander Willigen, Clare | |
| dc.contributor.author | Boyko, Clare | |
| dc.contributor.author | Farrant, Jill | |
| dc.date.accessioned | 2016-08-04T13:44:03Z | |
| dc.date.available | 2016-08-04T13:44:03Z | |
| dc.date.issued | 2005 | |
| dc.date.updated | 2016-08-02T13:16:30Z | |
| dc.description.abstract | Leaf tensile strength was measured for the drought-tolerant grass Eragrostis curvula and the desiccation-tolerant grass E. nindensis when fully hydrated, partially dehydrated, naturally air-dried, and flash-dried. Leaf tensile strength increased in intact, air-dried leaves of E. curvula but not for similarly treated leaves of E. nindensis. Examination of leaf cross-sections by light microscopy and histochemical staining for lignins failed to show any significant structural differences between the two species in the hydrated state. When leaves were flash-dried, the tensile strength of E. curvula remained unchanged from leaves dried naturally, while there was a marked increase in the tensile strength of flash-dried leaves of E. nindensis. Proton NMR indicated that the desiccation-tolerant E. nindensis retained mobile water when leaf relative water content was less than 20% if dried naturally but not if flash-dried, whereas no mobile water was detected in leaves of E. curvula when dried either naturally or with flash-drying to below 20% relative water content. This behaviour suggests a fundamental difference in strategy for surviving water loss in vegetative tissues between desiccation-tolerant species and drought-tolerant species. | en_ZA |
| dc.identifier | http://dx.doi.org/10.1111/j.1399-3054.2005.00501.x | |
| dc.identifier.apacitation | Balsamo, R. A., Vander Willigen, C., Boyko, C., & Farrant, J. (2005). Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis. <i>Physiologia Plantarum</i>, http://hdl.handle.net/11427/21121 | en_ZA |
| dc.identifier.chicagocitation | Balsamo, Ronald A, Clare Vander Willigen, Clare Boyko, and Jill Farrant "Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis." <i>Physiologia Plantarum</i> (2005) http://hdl.handle.net/11427/21121 | en_ZA |
| dc.identifier.citation | Balsamo, R. A., Vander Willigen, C., Boyko, W., & Farrant, J. (2005). Retention of mobile water during dehydration in the desiccation‐tolerant grass Eragrostis nindensis. Physiologia Plantarum, 124(3), 336-342. | en_ZA |
| dc.identifier.issn | 0031-9317 | en_ZA |
| dc.identifier.ris | TY - Journal Article AU - Balsamo, Ronald A AU - Vander Willigen, Clare AU - Boyko, Clare AU - Farrant, Jill AB - Leaf tensile strength was measured for the drought-tolerant grass Eragrostis curvula and the desiccation-tolerant grass E. nindensis when fully hydrated, partially dehydrated, naturally air-dried, and flash-dried. Leaf tensile strength increased in intact, air-dried leaves of E. curvula but not for similarly treated leaves of E. nindensis. Examination of leaf cross-sections by light microscopy and histochemical staining for lignins failed to show any significant structural differences between the two species in the hydrated state. When leaves were flash-dried, the tensile strength of E. curvula remained unchanged from leaves dried naturally, while there was a marked increase in the tensile strength of flash-dried leaves of E. nindensis. Proton NMR indicated that the desiccation-tolerant E. nindensis retained mobile water when leaf relative water content was less than 20% if dried naturally but not if flash-dried, whereas no mobile water was detected in leaves of E. curvula when dried either naturally or with flash-drying to below 20% relative water content. This behaviour suggests a fundamental difference in strategy for surviving water loss in vegetative tissues between desiccation-tolerant species and drought-tolerant species. DA - 2005 DB - OpenUCT DP - University of Cape Town J1 - Physiologia Plantarum LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 SM - 0031-9317 T1 - Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis TI - Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis UR - http://hdl.handle.net/11427/21121 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/21121 | |
| dc.identifier.vancouvercitation | Balsamo RA, Vander Willigen C, Boyko C, Farrant J. Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis. Physiologia Plantarum. 2005; http://hdl.handle.net/11427/21121. | en_ZA |
| dc.language | eng | en_ZA |
| dc.publisher | Wiley | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.source | Physiologia Plantarum | en_ZA |
| dc.source.uri | http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1399-3054 | |
| dc.title | Retention of mobile water during dehydration in the desiccation-tolerant grass Eragrostis nindensis | 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 |