Plant Responses to Drought Stress: From Morphological to by M. Farooq, M. Hussain, Abdul Wahid, K. H. M. Siddique

By M. Farooq, M. Hussain, Abdul Wahid, K. H. M. Siddique (auth.), Ricardo Aroca (eds.)

This booklet offers a accomplished assessment of the a number of ideas that vegetation have constructed to deal with drought, the most critical environmental stresses. specialists within the box current 17 chapters, every one of which makes a speciality of a easy idea in addition to the most recent findings.

The following significant facets are lined within the book:

· Morphological and anatomical adaptations

· Physiological responses

· Biochemical and molecular responses

· Ecophysiological responses

· Responses to drought less than box conditions

The contributions will function a useful resource of data for researchers and complicated scholars within the fields of plant sciences, agriculture, ecophysiology, biochemistry and molecular biology.

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Extra info for Plant Responses to Drought Stress: From Morphological to Molecular Features

Sample text

1997; Bateman et al. 1998). However, the major factor was water availability: the first land plants faced the problem of solving the conflict between water retention and the metabolic requirement to exchange gases with the atmosphere for photosynthesis (Niklas 1986). g. ) due to changing environmental conditions (Raven 1977) (Fig. 1). Although such traits involve any life organisation levels (from the development of multifaceted metabolic pathways up to organogenesis), there is common agreement that the development of specific forms and functions is controlled by mechanical and physiological constraints (Niklas 1986).

J Plant Physiol 158:213–219 Tezara W, Mitchell VJ, Driscoll SD, Lawlor DW (1999) Water stress inhibits plant photosynthesis by decreasing coupling factor and ATP. Nature 401:914–917 Tezara W, Mitchell VJ, Driscoll SD, Lawlor DW (2002) Effects of water deficit and its interaction with CO2 supply on the biochemistry and physiology of photosynthesis in sunflower. J Exp Bot 53:1781–1791 Turner NC, Wright GC, Siddique KHM (2001) Adaptation of grain legumes (pulses) to waterlimited environments. Adv Agron 71:193–271 Tyerman SD, Niemietz CM, Brameley H (2002) Plant aquaporins: multifunctional water and solute channels with expanding roles.

In a few generations) to escape drought. g. shrub). In plants growing in deserts, morpho-anatomical traits to withstand long and severe periods of drought rely on: (1) the extreme reduction of leaves into thorns and (2) the development of succulent stems which perform photosynthesis and accumulate water in parenchyma tissues. In semiarid ecosystems, dominant forms of plant life include the evergreen sclerophyllous, drought deciduous and seasonally dimorphic shrubs which represent the main adaptive strategies of woody perennial species to water stress.

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