The defensive role of silicon in wheat against stress conditions induced by drought, salinity or cadmium

Ecotoxicology and Environmental Safety
Yahya AlzahraniMostafa M Rady

Abstract

In the crust of earth, silicon (Si) is one of the two major elements. For plant growth and development, importance of Si remains controversial due to the widely differences in ability of plants to take up this element. In this paper, pot experiments were done to study Si roles in improving salt, drought or cadmium (Cd) stress tolerance in wheat. Up to full emergence, all pots were watered at 100% field capacity (FC) every other day with nutrient solution without any treatments. Fifteen days after sowing, pots were divided into four plots, each with 40 pots for no stress (control) and three stress treatments; drought (50% FC), salinity (200 mM NaCl) and cadmium (2 mM Cd). For all plots, Si was applied at four levels (0, 2, 4 and 6 mM). Under no stress condition, Si applications increased Si content and improved growth as a result of reduced electrolyte leakage (EL), malondialdehyde (MDA) and Na+ contents. Under stress conditions, Si supplementation conferred higher growth, gas exchange, tissue water and membranes stabilities, and K+ content, and had limited MDA and Na+ contents and EL compared to those obtained without Si. Compared to those without Si, enzyme (e.g., superoxide dismutase, catalase and peroxidase) activity was imp...Continue Reading

Citations

Jun 5, 2019·Plants·Yong-Xing ZhuJun-Liang Yin
Jun 4, 2019·Environmental Science and Pollution Research International·Hanan A A TaieMostafa M Rady
Aug 30, 2019·Plants·Boling LiuAbinaya Manivannan
Jun 9, 2018·Environmental Science and Pollution Research International·Muhammad Naveed IqbalIqbal Hussain
Jan 21, 2019·Environmental Science and Pollution Research International·Afzal HussainShafaqat Ali
Sep 26, 2020·Frontiers in Plant Science·Sarah J ThorneFrans J M Maathuis
Feb 10, 2021·Plants·Jörg SchallerMichael Sommer
Dec 12, 2020·Saudi Journal of Biological Sciences·Alexander Calero HurtadoMarisa de Cássia Piccolo
Apr 1, 2021·Critical Reviews in Biotechnology·Mohammad Golam MostofaLam-Son Phan Tran
Apr 4, 2021·International Journal of Molecular Sciences·Dung Minh Ha-TranChieh-Chen Huang
Jul 18, 2020·Ecotoxicology and Environmental Safety·Alexander Calero HurtadoDurvalina Maria Mathias Dos Santos
May 28, 2021·Plant Physiology and Biochemistry : PPB·B N DevannaRupesh Deshmukh
May 29, 2021·Plant Physiology and Biochemistry : PPB·Mushtaq Ahmad MalikIrfan Rashid
Jun 21, 2021·Plant Physiology and Biochemistry : PPB·Gopal SahaLam-Son Phan Tran
Jul 6, 2021·Saudi Journal of Biological Sciences·Priyanka BijalwanKamel Hessini
Jul 18, 2021·Ecotoxicology and Environmental Safety·Imran KhanLinkai Huang
Aug 10, 2021·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Veena PandeyShyamal K Nandi

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