Physiological and molecular insights into drought tolerance
By Sagadevan Mundree, B. Baker, S. Mowla, S. Peters, S. Marais, C. V. Willigen, Kershini Govender, A. Maredza, S. Muyanga, J. Farrant and 1 more. 2002
189 citations recorded by the source corpus.
Water is a major limiting factor in world agriculture. In general, most crop plants are highly sensitive to even a mild dehydration stress. There are however, a few genera of plants unique to Southern Africa, called "resurrection plants" which can tolerate extreme water loss or desiccation. We have used Xerophyta viscosa, a representative of the monocotyledonous resurrection plants to isolate genes that are associated with osmotic stress tolerance. Several genes that are differentially expressed, and that confer functional sufficiency to osmotically-stressed Escherichia coli are being studied at the molecular and biochemical levels. In this review, we use this as a basis to discuss the physiological and molecular insights into drought tolerance. (African Journal of Biotechnology: 2002 1(2): 28-38)
Subfields: Plant Science
View Paper: https://www.semanticscholar.org/paper/581d8c4e88660696a43557a8dc6a9cd0562c86f6
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Citations in the corpus
- Alleviation of drought stress in the common bean (Phaseolus vulgaris L.) by co-inoculation with Paenibacillus polymyxa and Rhizobium tropici (2008, background): “This sensitivity is particularly relevant in view of the facts that water is a major limiting factor in world agriculture, and that in general, most crop plants are highly sensitive to even mild dehydration stress (Mundree et al., 2002; Meneses et al., 2006).”
- The Effects Of Drought On Plants And Tolerance Mechanisms (Review) (2010, background): “Desert evergreens avoid drought by synthesing osmoprotectants for turgor maintenance in their tissues during water deficit (35).”
- Effect of osmotic stress on compatible solutes content, membrane stability and water relationsin two maize cultivars (2018, background): “Sucrose, as a member of the sugar family, is thought to function as a typical osmoprotectant, stabilising cellular membranes and maintaining turgor (Mundree et al. 2002).”
- Towards transcript profiling of desiccation tolerance in Xerophyta humilis: Construction of a normalized 11 k X. humilis cDNA set and microarray expression analysis of 424 cDNAs in response to dehydration (2004, background): “Aldose reductases function as rate-limiting enzymes in the polyol biosynthesis pathway (Rakowitz et al. 2002) and therefore their activity would contribute towards protection against osmotic stress (Mundree et al. 2002).”
- An overview of mechanisms of desiccation tolerance in selected angiosperm resurrection plants (2007, unknown): “…RWC (Tuba et al. 1998; Farrant 2000; Mundree et al. 2002; Farrant et al. 2003) and, in all species examined, photosynthesis is switched off at water contents between 80% and 65% RWC (Sherwin and Farrant 1998; Farrant 2000; van der Willigen et al. 2001; Mundree et al. 2002; Farrant et al. 2003).”
- Beneficial effects of diatomite on the growth, the biochemical contents and polymorphic DNA in Lupinus albus plants grown under water stress (2011, background): “…stress also increases the levels of soluble sugars (compatible solutes) as glucose, sucrose, sorbitol, galactose, raffinose, stachyose and soluble proteins while it reduces the amounts of polysaccharides, starch and total sugars (Mundree et al, 2002; El Tayeb, 2006; Abdalla and El-Khoshiban, 2007).”
- Insights into the cellular mechanisms of desiccation tolerance among angiosperm resurrection plant species (2004, unknown): “viscosa suggests that some of the molecules involved in tolerance mechanisms are similar to those involved in desiccation-tolerance of orthodox seeds (Farrant & Sherwin 1997; Bartels & Salamini 2001; Mundree et al. 2002).”