دورية أكاديمية

Effects of nitrate- and ammonium- nitrogen on anatomical and physiological responses of Catalpa bungei under full and partial root-zone drought.

التفاصيل البيبلوغرافية
العنوان: Effects of nitrate- and ammonium- nitrogen on anatomical and physiological responses of Catalpa bungei under full and partial root-zone drought.
المؤلفون: Xu T; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China., Wang Z; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China., Wang Z; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China., Guo M; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China., Wang X; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China., He X; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China., Wang J; State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, 100091, China. wangjh808@sina.com., Rahman SU; Department of Computer Science and Bioinformatics, Khushal Khan Khattak University, Karak, Khyber Pakhtunkhwa, 27200, Pakistan., Bourhia M; Laboratory of Biotechnology and Natural Resources Valorization , Faculty of Sciences, Ibn Zohr University, Agadir, 80000, Morocco. bourhiamohammed@gmail.com., Alsahli AA; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia., Zhang Y; State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, 712100, China. zhangyi.1978@163.com.
المصدر: BMC plant biology [BMC Plant Biol] 2024 Mar 26; Vol. 24 (1), pp. 217. Date of Electronic Publication: 2024 Mar 26.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: BioMed Central Country of Publication: England NLM ID: 100967807 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2229 (Electronic) Linking ISSN: 14712229 NLM ISO Abbreviation: BMC Plant Biol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: London : BioMed Central, [2001-
مواضيع طبية MeSH: Nitrogen*/metabolism , Nitrates*, Droughts ; Antioxidants ; Water/metabolism
مستخلص: Catalpa bungei is a precious timber species distributed in North China where drought often occurs. To clarify adaptive responses of C. bungei to partial- and full- root-zone drought under the influence of nitrogen forms, a two-factor experiment was conducted in which well-watered (WW), partial root-zone drought in horizontal direction (H-PRD) and in vertical direction (V-PRD), and full root-zone drought (FRD) were combined with nitrate-nitrogen (NN) and ammonium-nitrogen (AN) treatments. C. bungei responded to FRD by sharply closing stomata, decreasing gas exchange rate and increasing leaf instantaneous water use efficiency (WUE i ). Under FRD condition, the growth of seedlings was severely inhibited and the effect of N forms was covered up by the drastic drought effect. In comparison, stomata conductance and gas exchanges were moderately inhibited by PRDs. WUE i in V-PRD treatment was superior to H-PRD due to the active stomata regulation resulting from a higher ABA level and active transcription of genes in abscisic acid (ABA) signaling pathway under V-PRD. Under both PRDs and FRD, nitrate benefited antioxidant defense, stomata regulation and leaf WUE i . Under V-PRD, WUE i in nitrate treatment was superior to that in ammonium treatment due to active stomata regulation by signaling network of nitric oxide (NO), Ca 2+ and ABA. Under FRD, WUE i was higher in nitrate treatment due to the favoring photosynthetic efficiency resulting from active NO signal and antioxidant defense. The interactive effect of water and N forms was significant on wood xylem development. Superoxide dismutase (SOD) and catalase (CAT) largely contributes to stress tolerance and xylem development.
(© 2024. The Author(s).)
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معلومات مُعتمدة: 2021YFD2200301 the National Key Research and Development Program of China; 2020NY-055 the Key Research and DevelopmentProgram of Shaanxi province
فهرسة مساهمة: Keywords: CATALPA bungei; WUE i; Ammonium; Antioxidant defense; Heterogeneous drought; Nitrate
المشرفين على المادة: N762921K75 (Nitrogen)
0 (Nitrates)
0 (Antioxidants)
059QF0KO0R (Water)
تواريخ الأحداث: Date Created: 20240327 Date Completed: 20240328 Latest Revision: 20240329
رمز التحديث: 20240329
مُعرف محوري في PubMed: PMC10964640
DOI: 10.1186/s12870-024-04874-3
PMID: 38532319
قاعدة البيانات: MEDLINE