外源γ-氨基丁酸对干旱胁迫下黄瓜幼苗生理特性的影响
Journal: Agricultural Science DOI: 10.12238/as.v8i3.2843
Abstract
[目的]探明外源喷施γ-氨基丁酸(GABA)对干旱胁迫下黄瓜幼苗生理特性的影响,为提高黄瓜抗旱性,保障黄瓜的安全生产提供参考。[方法]以津研4号为试验材料,研究不同浓度GABA处理(CK,0 mmol/L；T1,100 mmol/L；T2,20 mmol/L；T3,10mmol/L；T4,5mmol/L)对黄瓜幼苗叶片的抗氧化酶活性、光合特性和渗透调节物质含量的影响。[结果]干旱胁迫下,随着叶片喷施GABA浓度增加,能显著提高黄瓜幼苗叶片的相对叶绿素含量、光合速率、蒸腾速率和气孔导度。叶片抗氧化酶活性表现为超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性增加,并降低超氧阴离子产生速率(O2-)和丙二醛(MDA)的积累,同时增加游离脯氨酸含量的积累,减少活性氧对植物组织和细胞的伤害。[结论]外源γ-氨基丁酸(GABA)能较大程度上缓解干旱胁迫对黄瓜幼苗生长的伤害,提高抗氧化酶活性,促进光合作用。
Keywords
黄瓜；γ-氨基丁酸；光合参数；抗氧化酶；干旱胁迫
Funding
广西民族师范学院科研项目(2024YB081)；广西自然科学基金项目(2022GXNSFBA035524)；崇左市科技计划项目(崇科20220618)；大学生创新训练计划(S202410604113)；广西民族师范学院服务地方专项(2022FW072)。
Full Text
PDF - Viewed/Downloaded: 0 TimesReferences
[1] 拉本,胡娟,张旭萍.干旱胁迫对植物生理的影响以及分子机制的响应研究进展[J].青海草业,2022,31(04):31-35.
[2] Lijuan H,Leilei D,Wenjuan W, et al. Effects of simulated drought stress on the growth and physiological and biochem ical parameters of Paspalum wettsteinii[J]. Acta Physiologiae Plantarum,2023,45(06):82-96.
[3] 丁玲.干旱胁迫对黄瓜幼苗抗氧化系统及光合特性的影响[D].浙江农林大学,2013.
[4] 李合生,植物生理生化实验原理和技术.北京:高等教育出版社,2000:267-268.
[5] 李忠光,龚明.植物中超氧阴离子自由基测定方法的改进[J].云南植物研究,2005,27(2):211-216.
[6] Pei Z F, Ming D F, Liu D, et al. Silicon improves the tolerance to water-deficit stress induced by polyethylene glycol in wheat (Triticun aestivum L.) seedlings[J]. Joumnal of Plant Growth Regulation,2010,29(1):106-115.
[7] R BHARADWAI, H NAYAK, R MAHTO, et al. Impact of salt stress on growth,productivity and physicochemical properties of plants:A Review[J].International Journal Of Chemical Siud ies,2019,7(2):1793.
[8] 罗洁.叶面喷施γ-氨基丁酸对黄瓜幼苗耐旱性的影响[J].农业技术与装备,2023(05):20-25.
[9] KAPOOR D, SINGH S, KUMAR V, et al. Antioxidant enzymes regulation in plants in reference to reactive oxygen species (ROS) and reactive nitrogen species(RNS)[J]. Plant Gene, 2019,19:100182.
[10] Hayat S, Hayat Q, Alyemeni MN, et al. Rale of praline under changing environments: a review[J]. Plant Signal Be.haw, 2012,7:1456-1466.
[11] 赵宏伟,胡文成,沙汉景,等.脯氨酸和γ-氨基丁酸复配对盐胁迫下水稻抗氧化系统的调控效应[J].东北农业大学学报,2017,48(9):11
[2] Lijuan H,Leilei D,Wenjuan W, et al. Effects of simulated drought stress on the growth and physiological and biochem ical parameters of Paspalum wettsteinii[J]. Acta Physiologiae Plantarum,2023,45(06):82-96.
[3] 丁玲.干旱胁迫对黄瓜幼苗抗氧化系统及光合特性的影响[D].浙江农林大学,2013.
[4] 李合生,植物生理生化实验原理和技术.北京:高等教育出版社,2000:267-268.
[5] 李忠光,龚明.植物中超氧阴离子自由基测定方法的改进[J].云南植物研究,2005,27(2):211-216.
[6] Pei Z F, Ming D F, Liu D, et al. Silicon improves the tolerance to water-deficit stress induced by polyethylene glycol in wheat (Triticun aestivum L.) seedlings[J]. Joumnal of Plant Growth Regulation,2010,29(1):106-115.
[7] R BHARADWAI, H NAYAK, R MAHTO, et al. Impact of salt stress on growth,productivity and physicochemical properties of plants:A Review[J].International Journal Of Chemical Siud ies,2019,7(2):1793.
[8] 罗洁.叶面喷施γ-氨基丁酸对黄瓜幼苗耐旱性的影响[J].农业技术与装备,2023(05):20-25.
[9] KAPOOR D, SINGH S, KUMAR V, et al. Antioxidant enzymes regulation in plants in reference to reactive oxygen species (ROS) and reactive nitrogen species(RNS)[J]. Plant Gene, 2019,19:100182.
[10] Hayat S, Hayat Q, Alyemeni MN, et al. Rale of praline under changing environments: a review[J]. Plant Signal Be.haw, 2012,7:1456-1466.
[11] 赵宏伟,胡文成,沙汉景,等.脯氨酸和γ-氨基丁酸复配对盐胁迫下水稻抗氧化系统的调控效应[J].东北农业大学学报,2017,48(9):11
Copyright © 2025 郑佳怡, 覃叶欣, 莫惠情, 卓越, 廖建杰
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
