新疆农业科学 ›› 2023, Vol. 60 ›› Issue (6): 1485-1491.DOI: 10.6048/j.issn.1001-4330.2023.06.022

• 微生物·园艺特产·贮藏保鲜加工 • 上一篇    下一篇

高温胁迫对枣花器官生理特性的影响

王冠玉1,2(), 贾平平2,3, 靳娟2, 阿布都卡尤木·阿依麦提2, 樊丁宇2, 赵晓梅2, 郝庆2, 杨磊2(), 耿文娟1()   

  1. 1.新疆农业大学园艺学院,乌鲁木齐 830052
    2.新疆农业科学院园艺作物研究所/农业部新疆地区果树科学观测实验站,乌鲁木齐 830091
    3.石河子大学农学院,新疆石河子 83200
  • 收稿日期:2022-10-15 出版日期:2023-06-20 发布日期:2023-06-20
  • 通信作者: 杨磊(1981-),男,新疆吉木萨尔人,副研究员,博士,硕士生导师,研究方向为果树种质资源与育种,(E-mail) yanglei9961@163.com; 耿文娟(1983-),女,新疆阿勒泰人,教授,博士,博士生导师,研究方向为果树种质资源及栽培生理,(E-mail) gwj0526@163.com
  • 作者简介:王冠玉(1999-),女,河北衡水人,硕士研究生, 研究方向为果树种质资源与栽培生理,(E-mail)wang19990123@163.com
  • 基金资助:
    新疆维吾尔自治区自然科学基金项目(2019D01A64);现代农业产业技术体系专项资金(CARS-30);新疆红枣产业技术体系建设专项资金(XJCYTX-01)

Effects of high temperature stress on physiological characteristics on jujube flower organs

WANG Guanyu1,2(), JIA Pingping2,3, JIN Juan2, Abudoukayoumu Ayimaiti2, FAN Dingyu2, ZHAO Xiaomei2, HAO Qing2, YANG Lei2(), GENG Wenjuan1()   

  1. 1. College of Horticulture, Xinjiang Agricultural University, Urumqi, 830052, China
    2. Scientific Observing and Experimental Station of Pomology / Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi,830091, China
    3. College of Agronomy, Shihezi University, Shihezi Xinjiang 832000, China
  • Received:2022-10-15 Online:2023-06-20 Published:2023-06-20
  • Correspondence author: YANG Lei(1981-), male, Jimusaer, Xinjiang, associate researcher, doctor,master's sapervisor research direction is fruit tree germplasm resources andbreeding, (E-mail) yanglei9961@163.com; GENG Wenjuan(1983-),female, Aletai, Xinjiang, professor,doctor,doctoral supervisor,associate professor, doctor, doctoral tutor, research direction is Germplasm resources and cultivation physiology of fruit trees, (E-mail) gwj0526@163.com
  • Supported by:
    Natural Science Foundation of the Autonomous Region(2019D01A64);Special Fund for Modern Agricultural Industrial Technology System(CARS-30);Xinjiang Jujube Industrial Technology System Construction Special Fund(XJCYTX-01)

摘要:

【目的】分析高温胁迫下伏脆蜜和骏枣花器官的生理特征差异,为红枣花器官的耐热性研究提供理论依据。【方法】以3年生伏脆蜜和骏枣盆栽苗为材料,测定45℃高温胁迫不同时间(0、2、6、24 h)对2个品种花器官相对电导率、丙二醛、脯氨酸、可溶性糖、超氧化物歧化酶、过氧化物酶、过氧化氢酶、多酚氧化酶等相关生理指标的影响。【结果】随着高温胁迫时间的延长,2个品种的相对电导率显著上升,细胞膜遭受高温胁迫后受损伤程度增大,且在不同时长高温胁迫处理下骏枣花器官的相对电导率和MDA含量始终大于伏脆蜜,高温胁迫下骏枣花器官细胞膜受损害程度较大。随着高温胁迫时间的延长,2个品种花器官脯氨酸和可溶性糖含量均呈现先上升后下降趋势,但骏枣花器官脯氨酸含量比伏脆蜜提前下降。2个品种的抗氧化酶活性随着温度的升高基本呈现上升趋势,且伏脆蜜花器官的POD、CAT酶活性始终大于骏枣,伏脆蜜提高更多的自身抗氧化酶活性以此抵御高温胁迫。【结论】高温胁迫下,伏脆蜜花器官细胞膜稳定性优于骏枣,在生理特征上表现出比骏枣花器官有更强的耐热性。

关键词: ; 花器官; 高温胁迫; 生理指标

Abstract:

【Objective】 To analyze the physiological characteristics of the flower organs of Fucuimi and Junzao under high temperature stress in the hope of providing a theoretical basis for the study of heat tolerance of jujube flower organs.【Methods】 Fucuimi and Junzao flower organs were used as the test materials, plug experiments were conducted to investigate the effects of 45℃ high temperature treatment at different time (0,2,6,24 h)on relative conductivity, malondialdehyde, proline, soluble sugar, superoxide dismutase, peroxidase, catalase and polyphenol oxidase in Fucuimi and Junzao flower organs. 【Results】 With the prolongation of the high temperature stress time, the relative conductivity of the two varieties increased significantly, indicating that the cell membrane was damaged by high temperature stress. And the relative conductivity and MDA content of Junzao flower organs were always greater than those of Fucuimi under the treatment of high temperature stress, indicating that the cell membrane of Junzao was damaged more greatly. With the prolongation of high temperature stress time, the content of proline and soluble sugar in the flower organs of the two varieties showed a trend of first rising and then declining, but the proline content of the flower organs of Junzao decreased earlier than that of Fucuimi. The antioxidant enzyme activities of the two varieties showed an upward trend with the increase of temperature,and the activity of POD and CAT enzymes of Fucuimi flower organs was always higher than that of Junzao, indicating that Fucuimi improved more of their own antioxidant enzymes to resist the high-temperature stress. 【Conclusion】 Under high temperature stress, the cell membrane stability of Fucuimi flower organs is greater than that of Junzao,in terms of physiological characteristics, showing stronger heat tolerance than the latter s flower organ.

Key words: jujube; flower organs; high temperature stress; physiological indicators

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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