Volume 9, Issue 35 (vol. 9, no. 35 2020)                   2020, 9(35): 275-287 | Back to browse issues page

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Haghighi M. Changing the Physiological Response and Water Relationships in Sweet Pepper When Stopping the Activity of Root Aquaporin in Drought Stress. Plant Process and Function 2020; 9 (35) :275-287
URL: http://jispp.iut.ac.ir/article-1-1236-en.html
1- Isfahan University of Technology , mhaghighi@cc.iut.ac.ir
Abstract:   (1910 Views)
Aquaporins are the main proteins in the plasma membrane, which facilitates the movement of water, carbon dioxide, and other small soluble material through the membrane. The aim of this study was to investigate the role of root acuporine on the physiological, biochemical and biochemical changes and water relations under drought stress. For this purpose, a study was conducted in a completely randomized design on sweet pepper (Ps 301) under drought stress in a hydroponic medium. To apply drought stress using polyethylene glycol (6000) and stopping the activity of acuporine, using 50 mM of HgNO3. The results showed that in the presence of aquaporins, fresh and dry weight of root and shoot, relative humidity (22.43%), protein (47%), sodium content (29%), potassium (13.11%), and abscisic acid (19.75%) increased. Also, in the absence of aquaporins in drought stress conditions, the negative potential of root water (57.78%), the increase in the amount of proline (1.2 times), the content of abscisic acid (12.25%) and the phenolic content (89.67%) as a protective factor in the cell against free radicals. Based on the results obtained from drought stress and stopping the activity of acuporins, the role of water channels in osmotic regulation can be explained by the transfer of water and decreasing the deleterious effect of stress.
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Type of Study: Research | Subject: Droughts Stress
Received: 2019/04/10 | Accepted: 2019/07/10 | Published: 2020/05/9

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