Biosaline Agriculture and High Salinity Tolerance by Chedly Abdelly, Münir Öztürk, Muhammad Ashraf, Claude

By Chedly Abdelly, Münir Öztürk, Muhammad Ashraf, Claude Grignon

A significant probability to agricultural productiveness around the world is unquestionably because of environments with demanding components together with drought, salinity, waterlogging, severe temperatures, non-optimal degrees of mineral nutrition and so on. in keeping with contributions awarded on the overseas convention on Biosaline Agriculture and excessive Salinity Tolerance in November 2006 in Gammarth, Tunisia, this e-book stories the present nation of data in biosaline agriculture and excessive salinity tolerance in vegetation. It quite often makes a speciality of the biotic method of economically make the most of the stress-prone parts through becoming resistant plants.

This quantity contains 3 sections: physiology and biochemistry, ecology, and molecular biology. hence, a scientific technique has been followed to discover plant responses to numerous ecological components at physiological and molecular levels.

It is of curiosity to scholars, researchers and execs in plant body structure, molecular biology, biotechnology, agriculture, soil technology, and environmental biology.

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In: B Buchanan, W Gruissem, R Jones (eds): Biochemistry and Molecular Biology of Plants. American Society of Plant Physiology, Rockville, 1158–1203 Owen S (2001) Salt of earth. Genetic engineering may help to reclaim agricultural land lost due to salinization. EMBO Rep 2: 877–879 Skovmand B, Reynolds MP, DeLacy IH (2001) Searching genetic resources for physiological traits with potential for increasing yield. In: MP Reynolds, I Ortiz-Monasterio, A. McNab (eds): Application of physiology in wheat breeding, CIMMYT, DF, Mexico, 17–28 Flowers TJ (2004) Improving crop salt tolerance.

This situation can be explained in terms of strictly coupled metabolic pathways in plants, as described in the literature [60], and comes along with extremely high protein concentrations (more than 150 mg/ml) found inside chloroplasts. Extremely close neighborhoods of reaction partners are essential for functioning of photosynthesis to allow high turnover rates of substrates. This is essential because the low number of coenzymes (NADP and ADP) would be consumed within seconds without recycling from NADPH and ATP by Calvin cycle events.

ATP-driven export of surplus ions may occur at both, the plasma membrane and the tonoplast. tion below a threshold value. This value can be easily calculated based on energetics of membrane transport. Salt is transported at the expense of ATP hydrolysis, catalyzed by the V-type ATPase of the tonoplast. Based on Mitchell‘s calculations [58], ATP hydrolysis builds up a proton motive transmembrane gradient. The energy of this gradient consists of the osmotic pressure of a proton concentration gradient and the energy of a transmembrane electric potential difference (initially based on the positive charges of protons).

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