干旱区生态环境知识资源中心(Arid): IONOMIC AND ANTIOXIDANT SYSTEM RESPONSES TO Na2SO4 STRESS OF TWO COTTON CULTIVARS DIFFERING IN SALT TOLERANCE

Arid

DOI	10.30848/PJB2021-1(8)
	IONOMIC AND ANTIOXIDANT SYSTEM RESPONSES TO Na2SO4 STRESS OF TWO COTTON CULTIVARS DIFFERING IN SALT TOLERANCE
	Guo, Huijuan; Li, Shuangnan; Ye, Jun; Min, Wei; Hou, Zhenan
通讯作者	Hou, ZN (corresponding author), Shihezi Univ, Coll Agron, Shihezi 832000, Peoples R China.
来源期刊	PAKISTAN JOURNAL OF BOTANY
ISSN	0556-3321
EISSN	2070-3368
出版年	2021
卷号	53 期号:1 页码:11-21
英文摘要	Understanding the impact of salt stress on cotton growth, the antioxidant system, and ionomic responses is of great importance for maintaining cotton productivity and sustainability in arid regions. In this study, we investigated the physiological and ionomic responses of different cotton cultivars (salt-sensitive X45 and salt-tolerant L24) to Na2SO4 stress under greenhouse conditions. We found a low concentration of Na2SO4 mainly inhibited cotton shoot growth, whereas high concentrations of Na2SO4 significantly inhibited cotton shoot and root growth. The growth inhibition rate of Na2SO4 stress was higher for X45 than for L24. Na2SO4 stress increased relative electrical conductivity (REC) and malondialdehyde (MDA) and proline (Pro) contents. The REC and MDA content in L24 leaves were significantly lower than those in X45 leaves. As the Na2SO4 stress increased, the SOD, POD, and CAT activities increased first and then decreased; Pro in L24 continued to increase, but in X45, it first increased and then decreased. The activities of SOD, POD, and CAT, and the PRO content in L24 leaves were significantly higher than those in X45. The contents of Ca, Cu, B, and Mo in roots and Ca in leaves in both cultivars decreased significantly; L24 stored Na in cotton leaves under salt stress and transported more mineral elements to leaves (P, Cu, Ca, Mg, Zn, and B). However, X45 tended to accumulate more mineral elements in roots (Ca, Fe, and Mo). Correlation analysis showed that cotton mainly absorbed mineral elements in roots to resist Na2SO4 stress. It was concluded that cotton cultivars showed different reaction to Na2SO4 stress, and salt-tolerant cotton has a stronger antioxidant enzyme system, which allows ion homeostasis through root absorption of more mineral elements.
英文关键词	Salt stress Cotton growth Antioxidant system Osmotic adjustment Ionomics
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000651318900002
WOS关键词	SALINITY STRESS ; PHYSIOLOGICAL ANALYSIS ; GLUTATHIONE-REDUCTASE ; SUPEROXIDE-DISMUTASE ; NUTRIENT-UPTAKE ; PLANT-GROWTH ; L. ; ACCUMULATION ; MECHANISMS ; PROLINE
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/2XILL650/351251
作者单位	[Guo, Huijuan; Li, Shuangnan; Ye, Jun; Min, Wei; Hou, Zhenan] Shihezi Univ, Coll Agron, Shihezi 832000, Peoples R China
推荐引用方式 GB/T 7714	Guo, Huijuan,Li, Shuangnan,Ye, Jun,et al. IONOMIC AND ANTIOXIDANT SYSTEM RESPONSES TO Na2SO4 STRESS OF TWO COTTON CULTIVARS DIFFERING IN SALT TOLERANCE[J],2021,53(1):11-21.
APA	Guo, Huijuan,Li, Shuangnan,Ye, Jun,Min, Wei,&Hou, Zhenan.(2021).IONOMIC AND ANTIOXIDANT SYSTEM RESPONSES TO Na2SO4 STRESS OF TWO COTTON CULTIVARS DIFFERING IN SALT TOLERANCE.PAKISTAN JOURNAL OF BOTANY,53(1),11-21.
MLA	Guo, Huijuan,et al."IONOMIC AND ANTIOXIDANT SYSTEM RESPONSES TO Na2SO4 STRESS OF TWO COTTON CULTIVARS DIFFERING IN SALT TOLERANCE".PAKISTAN JOURNAL OF BOTANY 53.1(2021):11-21.