干旱区生态环境知识资源中心(Arid): Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley (Hordeum vulgare L.)

Arid

DOI	10.1111/plb.13374
	Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley (Hordeum vulgare L.)
	Naz, R.; Gul, F.; Zahoor, S.; Nosheen, A.; Yasmin, H.; Keyani, R.; Shahid, M.; Hassan, M. N.; Siddiqui, M. H.; Batool, S.; Anwar, Z.; Ali, N.; Roberts, T. H.
通讯作者	Naz, R (corresponding author), COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan.
来源期刊	PLANT BIOLOGY
ISSN	1435-8603
EISSN	1438-8677
出版年	2021-12
英文摘要	Recent changes in climate have reduced crop productivity throughout much of the world. Drought and heat stress, particularly in arid and semi-arid regions, have seriously affected barley production. This study explored the separate and interactive effects of silicon (Si) and hydrogen sulphide (H2S) on plant growth and mitigation of the adverse effects of heat stress (DS) and drought stress (HS) in a barley pot experiment. The impacts of simultaneous DS + HS were more severe than individual stresses due to increased ROS production, malondialdehyde (MDA) content and higher electrolyte leakage (EL), thereby leading to reduced water, protein and photosynthetic pigment content. Exogenously applied Si and H2S alleviated the DS-, HS- and DS + HS-induced effects on barley by reducing ROS production, MDA and EL. A single application of H2S or Si + H2S increased plant biomass under all stress conditions, which can be ascribed to higher Si accumulation in barley shoots. A single application of Si or H2S significantly increased plant biomass. However, Si + H2S was the most effective treatment for metabolite accumulation and elevating activity of antioxidant enzymes to prevent toxicity from oxidative stress. This treatment also modulated osmolyte content, enhanced antioxidant activity and regulated the stress signalling-related endogenous hormones, abscisic acid (ABA) and indole acetic acid (IAA). Exogenous treatments regulated endogenous H2S and Si and resulted in higher tolerance to individual and combined drought and heat stress in barley.
英文关键词	Antioxidant activity barley drought stress heat stress hormones hydrogen sulphide silicon
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000730325400001
WOS关键词	REDUCES LIPID-PEROXIDATION ; WHEAT SEED-GERMINATION ; HELIANTHUS-ANNUUS L. ; STRESS TOLERANCE ; CHLOROPHYLL FLUORESCENCE ; EXOGENOUS SILICON ; PLANT-RESPONSES ; SALICYLIC-ACID ; ABIOTIC STRESS ; NITRIC-OXIDE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374695
作者单位	[Naz, R.; Gul, F.; Zahoor, S.; Nosheen, A.; Yasmin, H.; Keyani, R.; Hassan, M. N.; Batool, S.] COMSATS Univ Islamabad, Dept Biosci, Islamabad, Pakistan; [Shahid, M.] COMSATS Univ Islamabad, Dept Environm Sci, Islamabad, Pakistan; [Siddiqui, M. H.] King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh, Saudi Arabia; [Anwar, Z.; Ali, N.] COMSATS Univ Islamabad, Dept Comp Sci, Islamabad, Pakistan; [Roberts, T. H.] Univ Sydney, Sch Life & Environm Sci, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Naz, R.,Gul, F.,Zahoor, S.,et al. Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley (Hordeum vulgare L.)[J],2021.
APA	Naz, R..,Gul, F..,Zahoor, S..,Nosheen, A..,Yasmin, H..,...&Roberts, T. H..(2021).Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley (Hordeum vulgare L.).PLANT BIOLOGY.
MLA	Naz, R.,et al."Interactive effects of hydrogen sulphide and silicon enhance drought and heat tolerance by modulating hormones, antioxidant defence enzymes and redox status in barley (Hordeum vulgare L.)".PLANT BIOLOGY (2021).