Photosynthesis under Heat Stress

Authored by: Muhammad Farooq , Abdul Rehman , Abdul Wahid , Kadambot H.M. Siddique

Handbook of Photosynthesis

Print publication date:  March  2016
Online publication date:  April  2016

Print ISBN: 9781482230734
eBook ISBN: 9781482230758
Adobe ISBN:


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Plant growth and development is dependent on a plant’s ability to convert light energy into usable chemical energy during a process termed photosynthesis. However, temperatures above that optimum for growth (heat stress) may injure and/ or irreversibly damage photosynthetic machinery, pigments, and metabolites including photosynthetic enzymes, as well as the stomata (Xu et al. 1995; Sairam et al. 2000; Farooq et al. 2011). Heat stress disrupts the integrity of thylakoid membranes, thus inhibiting the activities of membrane-associated electron carriers and enzymes (Rexroth et al. 2011), which reduces the rate of photosynthesis.

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