干旱区生态环境知识资源中心(Arid): Safflower's (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance

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DOI	10.1007/s11738-021-03254-w
	Safflower's (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance
	Golkar, Pooran; Hamzeh, Esmaeil; Maibody, Seyed Alimohammad Mirmohammadi; Taghizadeh, Marzieh
通讯作者	Golkar, P (corresponding author)，Isfahan Univ Technol, Dept Nat Resources, Esfahan 8415683111, Iran. ; Golkar, P (corresponding author)，Isfahan Univ Technol, Res Inst Biotechnol & Bioengn, Esfahan 8415683111, Iran.
来源期刊	ACTA PHYSIOLOGIAE PLANTARUM
ISSN	0137-5881
EISSN	1861-1664
出版年	2021
卷号	43 期号:5
英文摘要	Drought is a main stressor affecting plant production worldwide. Safflower (Carthamus tinctorius L.) is known to exploit biochemical strategies to tolerate drought stress. However, the little so far known about these strategies does not guarantee safflower yield stability in future. To fill the gap, changes in the biochemical traits and antioxidant activities of safflower were monitored using 100 genotypes under the two non-stress and drought-stress field conditions in two subsequent years (2017 and 2018). While drought stress was observed to give rise to reversible increases in total phenolics (TPC), total flavonoids (TFD), total flavonols (TFL), total anthocyanin (Ant), proline, malondialdehyde (MDA), and antioxidant activity, it decreased total chlorophyll (ChlT) and total carotenoid (Car) contents in safflower. Under drought stress, the highest values for TPC (21.55 16.07 mg GAEg(-1) fresh weight [FW]), Car (0.08 mg g(-1) FW), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) activity (98%) were measured in G(16), averaged over the two study years. Also the highest values for TFD (5.17 mg QEg(-1) FW), TFL (1.99 mg QEg(-1) FW), Ant (234.1 mu mol g(-1) FW), ChlT (0.67 mg g(-1) FW), and proline (851 mu mol g(-1) FW) were recorded for G(80), G(60), G(23), G(62), and G(33). The least MDA content (2.8 mu mol g(-1) FW) was denoted to G(91) under drought stress. The results of both principal component and correlation analyses demonstrated the effective role of total flavonoids in safflower drought tolerance. The high genetic variance was seen to result in the high heritability of biochemical traits under drought stress, thereby improving drought tolerance in safflower cultivated in drought prone regions. The significant genetic variations in all the biochemical traits indicated that these traits, especially TPC and TFD, could be used as screening criteria for genotypic selection in arid climates.
英文关键词	Antioxidant activity Biplot Correlation Total phenolics content Total flavonoids
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000757185000004
WOS关键词	BRASSICA-NAPUS L. ; FLAVONOID BIOSYNTHESIS ; OXIDATIVE DEFENSE ; STRESS ; RESPONSES ; GENES ; ACCUMULATION ; PRODUCTIVITY ; EXPRESSION ; SALINITY
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/2XILL650/375967
作者单位	[Golkar, Pooran] Isfahan Univ Technol, Dept Nat Resources, Esfahan 8415683111, Iran; [Golkar, Pooran] Isfahan Univ Technol, Res Inst Biotechnol & Bioengn, Esfahan 8415683111, Iran; [Hamzeh, Esmaeil; Maibody, Seyed Alimohammad Mirmohammadi] Isfahan Univ Technol, Coll Agr, Dept Agron & Plant Breeding, Esfahan 8415683111, Iran; [Taghizadeh, Marzieh] Univ Isfahan, Fac Biol Sci & Technol, Dept Plant & Anim Biol, Esfahan, Iran
推荐引用方式 GB/T 7714	Golkar, Pooran,Hamzeh, Esmaeil,Maibody, Seyed Alimohammad Mirmohammadi,et al. Safflower's (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance[J],2021,43(5).
APA	Golkar, Pooran,Hamzeh, Esmaeil,Maibody, Seyed Alimohammad Mirmohammadi,&Taghizadeh, Marzieh.(2021).Safflower's (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance.ACTA PHYSIOLOGIAE PLANTARUM,43(5).
MLA	Golkar, Pooran,et al."Safflower's (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance".ACTA PHYSIOLOGIAE PLANTARUM 43.5(2021).