Promoter role of putrescine for molecular and biochemical processes under drought stress in barley.

Autor: Tabur S; Department of Biology, Faculty of Engineering and Natural Sciences, Suleyman Demirel University, 32260, Isparta, Turkey., Ozmen S; Department of Biology, Faculty of Engineering and Natural Sciences, Suleyman Demirel University, 32260, Isparta, Turkey., Oney-Birol S; Department of Moleculer Biology and Genetics, Faculty of Arts and Sciences, Burdur Mehmet Akif Ersoy University, 15030, Burdur, Turkey. sobirol@mehmetakif.edu.tr.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Aug 19; Vol. 14 (1), pp. 19202. Date of Electronic Publication: 2024 Aug 19.
DOI: 10.1038/s41598-024-70137-8
Abstrakt: Drought, which adversely affects plant growth and continuity of life and reduces product yield and quality, is one of the most common abiotic stresses at the globally. One of the polyamines that regulates plant development and reacts to abiotic stressors, including drought stress, is Putrescine (Put). This study compared the physiological and molecular effects of applying exogenous Put (10 µM) to barley (Hordeum vulgare cv. Burakbey) under drought stress (- 6.30 mPa PEG 6000). The 21-day drought stress imposed on the barley plant had a strong negative effect on plant metabolism in all experimental groups. Exogenous Put treatment under drought stress had a reformative effect on the cell cycle (transitions from G0-G1 to S and from S to G2-M), total protein content (almost 100%), endogenous polyamine content, malondialdehyde (MDA) (70%), and ascorbate peroxidase (APX) (62%) levels compared to the drought stress plants. Superoxide dismutase (SOD) (12%) and catalase (CAT) (32%) enzyme levels in the same group increased further after exogenous Put application, forming a response to drought stress. Consequently, it was discovered that the administration of exogenous Put in barley raises endogenous polyamine levels and then improves drought tolerance due to increased antioxidant capability, cell division stimulation, and total protein content.
(© 2024. The Author(s).)
Databáze: MEDLINE
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