Osmotic adjustment is a prime drought stress adaptive engine in support of plant production
Top Cited Papers
- 20 September 2016
- journal article
- review article
- Published by Wiley in Plant, Cell & Environment
- Vol. 40 (1), 4-10
- https://doi.org/10.1111/pce.12800
Abstract
Osmotic adjustment (OA) and cellular compatible solute accumulation are widely recognized to have a role in plant adaptation to dehydration mainly through turgor maintenance and the protection of specific cellular functions by defined solutes. At the same time there has been an ongoing trickle of skepticism in the literature about the role of OA in supporting crop yield under drought stress. Contrarian reviews argued that OA did not sustain turgor or that it served mainly for plant survival rather than productivity. This critical review examined 26 published studies where OA was compared with yield under drought stress in variable genotypes of twelve crops, namely barley, wheat, maize, sorghum, chickpea, pea, pigeon pea, soybean, canola, mustard, castor bean and sunflower. Over all crops a positive and significant association between OA and yield under drought stress was found in 24 out of 26 cases. Considering that it is generally difficult to find a singular plant trait responsible for yield advantage of numerous crops under different drought stress conditions, this evidence is no less than remarkable as proof that OA sustains crop yield under drought stress.Keywords
This publication has 61 references indexed in Scilit:
- Role of proline under changing environmentsPlant Signaling & Behavior, 2012
- Osmotic adjustment and plant adaptation to environmental changes related to drought and salinityEnvironmental Reviews, 2010
- Osmotic adjustment segregates with and is positively related to seed yield in F3 lines of crosses between Brassica napus and B. juncea subjected to water deficitAustralian Journal of Experimental Agriculture, 2006
- Patterns of osmotic adjustment in pigeonpea — its importance as a mechanism of drought resistanceEuropean Journal of Agronomy, 2000
- Physiological responses of chickpea genotypes to terminal drought in a Mediterranean-type environmentEuropean Journal of Agronomy, 1999
- Turgor maintenance, osmotic adjustment and soluble sugar and proline accumulation in 49 pea cultivars in response to water stressField Crops Research, 1998
- Field Drought Tolerance of a Soybean Plant IntroductionCrop Science, 1990
- Contribution of osmotic adjustment to grain yield in Sorghum bicolor (L.) Moench under water-limited conditions. II. Water stress after anthesisAustralian Journal of Agricultural Research, 1990
- Genetic variation in osmoregulation in bread and durum wheats and its relationship to grain yield in a range of field environmentsAustralian Journal of Agricultural Research, 1986
- Differences between two grain sorghum genotypes in adaptation to drought stress. III. Physiological responsesAustralian Journal of Agricultural Research, 1983