新疆农业科学 ›› 2023, Vol. 60 ›› Issue (6): 1485-1491.DOI: 10.6048/j.issn.1001-4330.2023.06.022
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()
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:
WANG Guanyu1,2(), JIA Pingping2,3, JIN Juan2, Abudoukayoumu Ayimaiti2, FAN Dingyu2, ZHAO Xiaomei2, HAO Qing2, YANG Lei2(), GENG Wenjuan1()
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:
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。
中图分类号:
王冠玉, 贾平平, 靳娟, 阿布都卡尤木·阿依麦提, 樊丁宇, 赵晓梅, 郝庆, 杨磊, 耿文娟. 高温胁迫对枣花器官生理特性的影响[J]. 新疆农业科学, 2023, 60(6): 1485-1491.
WANG Guanyu, JIA Pingping, JIN Juan, Abudoukayoumu Ayimaiti, FAN Dingyu, ZHAO Xiaomei, HAO Qing, YANG Lei, GENG Wenjuan. Effects of high temperature stress on physiological characteristics on jujube flower organs[J]. Xinjiang Agricultural Sciences, 2023, 60(6): 1485-1491.
图1 高温胁迫下枣花器官相对电导率变化 注:柱形图中不同小写字母表示同一品种不同处理间的差异显著(P<0.05),下同
Fig.1 Effect of high temperature stress on relative conductivity of jujube flower organs Note:Different letters in the column indicate significant difference among different treatment of the same variety(P<0.05),the same as below
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