干旱区生态环境知识资源中心(Arid): Distinct morpho-physiological and biochemical features of arid and hyper-arid ecotypes of Ziziphus nummularia under drought suggest its higher tolerance compared with semi-arid ecotype

Arid

DOI	10.1093/treephys/tpab058
	Distinct morpho-physiological and biochemical features of arid and hyper-arid ecotypes of Ziziphus nummularia under drought suggest its higher tolerance compared with semi-arid ecotype
	Sivalingam, P. N.; Mahajan, Mahesh M.; Satheesh, Viswanathan; Chauhan, Sarita; Changal, Harish; Gurjar, Karun; Singh, Dhurendra; Bhan, Chander; Sivalingam, Anandhan; Marathe, Ashish; Ram, Chet; Dokka, Narasimham; More, T. A.; Padaria, J. C.; Bhat, K., V; Mohapatra, T.
通讯作者	Sivalingam, PN (corresponding author)，ICAR Cent Inst Arid Hort, NH-15 Sri Ganganagar Rd, Bikaner 334006, Rajasthan, India. ; Sivalingam, PN (corresponding author)，ICAR Natl Inst Biot Stress Management, Raipur 493225, Chhattisgarh, India.
来源期刊	TREE PHYSIOLOGY
ISSN	0829-318X
EISSN	1758-4469
出版年	2021
卷号	41 期号:11
英文摘要	Tree species in the arid and semi-arid regions use various strategies to combat drought stress. Ziziphus nummularia (Burm. f.) Wight et Arn., native to the Thar Desert in India, is highly drought-tolerant. To identify the most drought-tolerant ecotype of Z. nummularia, one ecotype each from semi-arid (Godhra, annual rainfall >750 mm), arid (Bikaner, 250-350 mm) and hyper-arid (Jaisalmer, <150 mm) regions was selected along with two other Ziziphus species, Ziziphus mauritiana Lamk. and Ziziphus rotundifolia Lamk., and screened for parameters contributing to drought tolerance. Among these, Z. nummularia (Jaisalmer) (CIAHZN-J) was the most drought - tolerant. The tolerance nature of CIAHZN-J was associated with increased membrane stability, root length and number, length of hairs and thorns, root dry/fresh weight ratio, seed germination (at -0.5 MPa), proline content (31-fold), catalase and sugar content (two- to three-fold). Apart from these characteristics, it also exhibited the longest duration to reach highest cumulative drought stress rating, maintained higher relative water content for a longer period of time with reduced leaf size, leaf rolling and falling of older leaves, and displayed sustained shoot growth during drought stress. To determine drought tolerance in Ziziphus, we developed a morphological symptom-based screening technique in this study. Additionally, transcriptome profiling of CIAHZN-J in response to drought revealed the up-regulation of genes involved in sugar metabolism and transport, abscisic acid biosynthesis, osmoregulation, reactive oxygen species homeostasis and maintaining water potential. Expression profiles and semi-quantitative reverse transcription PCR results further correlated with the physiological and biochemical mechanisms. In conclusion, CIAHZN-J is an excellent genetic stock for the identification of drought-responsive genes and can also be deployed in crop improvement programs for drought tolerance.
英文关键词	desert ecosystem drought tolerance ecotypes genetic stock transcriptome Ziziphus nummularia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000742398600008
WOS关键词	CELL-MEMBRANE STABILITY ; PROLINE ACCUMULATION ; OSMOTIC ADJUSTMENT ; WATER-STRESS ; SEED-GERMINATION ; MAURITIANA ; ANNOTATION ; RESISTANCE ; RESPONSES ; ADAPTATIONS
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375969
作者单位	[Sivalingam, P. N.; Chauhan, Sarita; Changal, Harish; Gurjar, Karun; Singh, Dhurendra; Bhan, Chander; Ram, Chet; More, T. A.] ICAR Cent Inst Arid Hort, NH-15 Sri Ganganagar Rd, Bikaner 334006, Rajasthan, India; [Sivalingam, P. N.; Mahajan, Mahesh M.; Marathe, Ashish; Dokka, Narasimham] ICAR Natl Inst Biot Stress Management, Raipur 493225, Chhattisgarh, India; [Satheesh, Viswanathan; Padaria, J. C.; Mohapatra, T.] PUSA, ICAR Natl Inst Plant Biotechnol, IARI Campus, New Delhi 110012, India; [Sivalingam, Anandhan] ICAR Directorate Onion & Garl Res, Pune 410505, Maharashtra, India; [Bhat, K., V] PUSA, ICAR Natl Bur Plant Genet Resources, IARI Campus, New Delhi 110012, India; [Satheesh, Viswanathan] Chinese Acad Sci, CAS Ctr Excellence Mol Plant Sci, Shanghai Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Shanghai 200032, Peoples R China; [Mohapatra, T.] Indian Council Agr Res, New Delhi 110001, India
推荐引用方式 GB/T 7714	Sivalingam, P. N.,Mahajan, Mahesh M.,Satheesh, Viswanathan,et al. Distinct morpho-physiological and biochemical features of arid and hyper-arid ecotypes of Ziziphus nummularia under drought suggest its higher tolerance compared with semi-arid ecotype[J],2021,41(11).
APA	Sivalingam, P. N..,Mahajan, Mahesh M..,Satheesh, Viswanathan.,Chauhan, Sarita.,Changal, Harish.,...&Mohapatra, T..(2021).Distinct morpho-physiological and biochemical features of arid and hyper-arid ecotypes of Ziziphus nummularia under drought suggest its higher tolerance compared with semi-arid ecotype.TREE PHYSIOLOGY,41(11).
MLA	Sivalingam, P. N.,et al."Distinct morpho-physiological and biochemical features of arid and hyper-arid ecotypes of Ziziphus nummularia under drought suggest its higher tolerance compared with semi-arid ecotype".TREE PHYSIOLOGY 41.11(2021).