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DOI: | 10.1016/S0098-8472(98)00017-3 |
Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0098847298000173 Last checked: 01/31/2014 Access conditions: Item is within a limited-access website |
Author(s): | Abernethy, Grant A.;
McManus, Michael T. |
Author Affiliation: | Abernethy: Department of Plant Biology and Biotechnology, Massey University, Palmerston North, New Zealand; Abernethy and McManus: Plant Molecular Genetics Laboratory, AgResearch Grasslands, Palmerston North, New Zealand |
Title: | Biochemical responses to an imposed water deficit in mature leaf tissue of Festuca arundinacea |
Source: | Environmental and Experimental Botany. Vol. 40, No. 1, August 1998, p. 17-28. |
Publishing Information: | Elsevier |
# of Pages: | 12 |
Keywords: | TIC Keywords: Water deficit; Leaf tissue; Festuca arundinacea; Vertical shoot growth; Leaf water potential; Abscisic acid; Proline; Soil water content
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Abstract/Contents: | "Plants of a single genotype of Festuca arundinacea cv. Grasslands Roa were grown in 24-1 capacity pots in a temperature-controlled glasshouse and a water-deficit stress imposed through water deprivation. Five responses, changes in leaf elongation rate (LER) and leaf water potential (LWP), and the accumulation of abscisic acid (ABA), proline and glycinebetaine, were measured in mature leaf tissue at specific time points during the course of the water-deprivation treatment. In plants subjected to water deficit, the LER declined as the soil water content (SWC) decreased until zero values were observed. Concomitant with the decline in LER was the accumulation of ABA, proline and glycinebetaine. Leaf ABA levels increased from a range of 5-30 ng g-1 FW in leaf tissue from water sufficient plants to up to 200 ng g-1 FW in leaf tissue that had ceased to elongate in response to the water deficit. In the same tissues, proline levels increased from a range of 20-70 to 2.3 mg g-1 FW, and glycinebetaine from a range of 6-11 to over 24 μ mol g-1 FW. These observations are discussed with respect to the significance of metabolite accumulation in response to a water deficit." |
Language: | English |
References: | 47 |
Note: | Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Abernethy, G. A., and M. T. McManus. 1998. Biochemical responses to an imposed water deficit in mature leaf tissue of Festuca arundinacea. Environmental and Experimental Botany. 40(1):p. 17-28. |
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| DOI: 10.1016/S0098-8472(98)00017-3 |
| Web URL(s): http://www.sciencedirect.com/science/article/pii/S0098847298000173 Last checked: 01/31/2014 Access conditions: Item is within a limited-access website |
| MSU catalog number: QK 711 .A1 R3 |
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