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Response of Elymus nutans Griseb. seedling physiology and endogenous hormones to drought and salt stress.

التفاصيل البيبلوغرافية
العنوان: Response of Elymus nutans Griseb. seedling physiology and endogenous hormones to drought and salt stress.
المؤلفون: Long J; Xizang Agricultural and Animal Husbandry University, Tibet, Linzhi, 860000, China., Liu D; Xizang Agricultural and Animal Husbandry University, Tibet, Linzhi, 860000, China., Qiao W; Xizang Agricultural and Animal Husbandry University, Tibet, Linzhi, 860000, China., Wang Y; Xizang Agricultural and Animal Husbandry University, Tibet, Linzhi, 860000, China., Miao Y; Xizang Agricultural and Animal Husbandry University, Tibet, Linzhi, 860000, China. myj666@126.com., Baosai H; Xizang Agricultural and Animal Husbandry University, Tibet, Linzhi, 860000, China. 1306598067@qq.com.
المصدر: Scientific reports [Sci Rep] 2024 Aug 01; Vol. 14 (1), pp. 17810. Date of Electronic Publication: 2024 Aug 01.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE
أسماء مطبوعة: Original Publication: London : Nature Publishing Group, copyright 2011-
مواضيع طبية MeSH: Seedlings*/physiology , Seedlings*/drug effects , Seedlings*/metabolism , Salt Stress* , Droughts* , Plant Growth Regulators*/metabolism , Plant Growth Regulators*/pharmacology, Stress, Physiological ; Plant Roots/physiology ; Plant Roots/drug effects ; Plant Roots/metabolism ; Salt Tolerance ; Indoleacetic Acids/metabolism ; Poaceae/physiology ; Poaceae/drug effects ; Poaceae/metabolism
مستخلص: Elymus nutans Griseb. (E. nutans), a pioneer plant for the restoration of high quality pasture and vegetation, is widely used to establish artificial grasslands and ecologically restore arid and salinized soils. To investigate the effects of drought stress and salt stress on the physiology and endogenous hormones of E. nutans seedlings, this experiment configured the same environmental water potential (0 (CK), - 0.04, - 0.14, - 0.29, - 0.49, - 0.73, and - 1.02 MPa) of PEG-6000 and NaCl stress to investigate the effects of drought stress and salt stress, respectively, on E. nutans seedlings under the same environmental water potential. The results showed that although the physiological indices and endogenous hormones of the E. nutans seedlings responded differently to drought stress and salt stress under the same environmental water potential, the physiological indices of E. nutans shoots and roots were comprehensively evaluated using the genus function method, and the physiological indices of the E. nutans seedlings under the same environmental water potential exhibited better salt tolerance than drought tolerance. The changes in endogenous hormones of the E. nutans seedlings under drought stress were analyzed to find that treatment with gibberellic acid (GA 3 ), gibberellin A 7 (GA 7 ), 6-benzyladenine (6-BA), 6-(y,y-dimethylallylaminopurine) (2.IP), trans-zeatin (TZ), kinetin (KT), dihydrozeatin (DHZ), indole acetic acid (IAA), and 2,6-dichloroisonicotininc acid (INA) was more effective than those under drought stress. By analyzing the amplitude of changes in the endogenous hormones in E. nutans seedlings, the amplitude of changes in the contents of GA 3 , GA 7 , 6-BA, 2.IP, TZ, KT, DHZ, IAA, isopentenyl adenosine (IPA), indole-3-butyric acid (IBA), naphthalene acetic acid (NAA), and abscisic acid was larger in drought stress compared with salt stress, which could be because the endogenous hormones are important for the drought tolerance of E. nutans itself. The amplitude of the changes in the contents of DHZ, TZR, salicylic acid, and jasmonic acid was larger in salt stress compared with drought stress. Changes in the content of melatonin were larger in salt stress compared with drought stress, which could indicate that endogenous hormones and substances are important for the salt tolerance of E. nutans itself.
(© 2024. The Author(s).)
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معلومات مُعتمدة: U21A20240 National Natural Science Foundation of China; U20A2050 National Natural Science Foundation of China; ZYYD2023000147 Central Guided Local Science and Technology Development Funds Project
فهرسة مساهمة: Keywords: Elymus nutans; Drought stress; Endogenous hormones; Salt stress; Seedling physiology
المشرفين على المادة: 0 (Plant Growth Regulators)
0 (Indoleacetic Acids)
تواريخ الأحداث: Date Created: 20240801 Date Completed: 20240801 Latest Revision: 20240808
رمز التحديث: 20240808
مُعرف محوري في PubMed: PMC11294584
DOI: 10.1038/s41598-024-68894-7
PMID: 39090163
قاعدة البيانات: MEDLINE
الوصف
تدمد:2045-2322
DOI:10.1038/s41598-024-68894-7