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[1]雷玲 刘杰** 蒋萍萍 朱真 丁志凡 蒋旭升.超富集植物青葙叶片对锰胁迫的生理和激素代谢响应[J].应用与环境生物学报,2021,27(03):1-9.[doi:10.19675/j.cnki.1006-687x.2020.06055]
 LEI Ling,LIU Jie,JIANG Ping-ping,et al.Physiological and hormonal responses to Mn stress in the leaves of a hyperaccumulator Celosia argentea Linn.[J].Chinese Journal of Applied & Environmental Biology,2021,27(03):1-9.[doi:10.19675/j.cnki.1006-687x.2020.06055]
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超富集植物青葙叶片对锰胁迫的生理和激素代谢响应()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
27卷
期数:
2021年03期
页码:
1-9
栏目:
研究论文
出版日期:
2021-06-25

文章信息/Info

Title:
Physiological and hormonal responses to Mn stress in the leaves of a hyperaccumulator Celosia argentea Linn.
作者:
雷玲1 刘杰12** 蒋萍萍12 朱真2 丁志凡1 蒋旭升1
1桂林理工大学,环境污染控制理论与技术广西重点实验室 桂林 541004
2自然资源部南方石山地区矿山地质环境修复工程技术创新中心 南宁 530022
Author(s):
LEI Ling1 LIU Jie12 JIANG Ping-ping 12 ZHU Zhen2 DING Zhi-fan1& JIANG Xu-sheng 1
1Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
2Technical Innovation Center of Mine Geological Environmental Restoration Engineering in Southern Karst AreaMNR Nanning 530022, China
关键词:
锰胁迫青葙叶片内源激素光合色素
Keywords:
Mn stress celosia argentea L inn. leaves endogenous hormones chlorophyll
DOI:
10.19675/j.cnki.1006-687x.2020.06055
摘要:
为研究超富集植物青葙叶片生长和光合色素对锰胁迫的响应及其激素应答机制,采用不同浓度锰胁迫(0.5、30、60、100 mg/L)来进行水培实验,观察不同锰处理下青葙的生长状况,并测定其叶片生物量、叶面积、叶绿素以及内源激素的含量。结果显示:随着锰胁迫浓度的增加,青葙叶片的生物量、叶面积以及叶绿素和类胡萝卜素均存在显著差异(P<0.05),并且在30 mg/L处理组达到最大,然后随着锰浓度增加而降低。生长素(IAA)、赤霉素3(GA3)和玉米素(ZT)含量变化趋势一致,在30 mg/L时显著升高,与对照相比分别高出54.37%、51.62%、18.38%。茉莉酸(JA)和脱落酸(ABA)含量与锰浓度呈正相关,在100 mg/L时分别比对照高出164.11%、36.96%。这些结果表明青葙叶片对锰胁迫的响应受到内源激素的调控,其中低浓度锰胁迫增加叶片中IAA、GA3和ZT的含量,从而促进青葙的生长,而高浓度锰胁迫显著增加ABA和JA的含量,抑制其生长。(图5 参37)
Abstract:
In order to study the responses of growth and photosynthetic pigment in the leaves of Celosia argentea Linn. to Mn stress and its regulation mechanism of endogenous hormones, hydroponics experiments were carried out under different concentrations of Mn stress (0.5, 30, 60, 100 mg/L). C. argentea growth was then observed and the leaf biomass, leaf area, chlorophyll and endogenous hormone content were measured during the after .The results showed that the biomass, leaf area, chlorophyll and carotenoid were significantly different with the increase of Mn concentration ( P<0.05), and reached the maximum at 30 mg/L treatment group, then decreased with the increase in Mn concentration. The variation trend of Auxin (IAA), Gibberellin3 (GA 3) and Zeatin (ZT) were consistent, which were significantly increased at 30 mg/ L, that were 54.37%, 51.62% and 18.38% higher than those in the control group. The contents of Jasmonic acid (JA) and Abscisic acid (ABA) were positively correlated with the concentration of Mn stress, those were 164.11% and 36.96% at 100 mg/L higher than the control. These results indicated that the response of C. argentea leaves to Mn stress a regulated by endogenous hormones. Low concentration of Mn stress significantly increased the content of IAA, GA 3 and ZT in leaves, which promoted the growth of C. argentea. Under the high concentration of Mn stress, the content of ABA and JA increased significantly, and inhibited its growth.

备注/Memo

备注/Memo:
收稿日期 Received: 2020-06-21 接受日期 Accepted: 2020-07-26
国家自然科学基金项目(41867022)和广西高等学校高水平创新团队及卓越学者计划项目(桂财教函[2018]319号) Supported by the National Natural Science Foundation of China (41867022), and the High Level Innovation Team and Outstanding Scholar Program of Guangxi University (GCJH [2018] 319)
**通讯作者 Corresponding author (E-mail: liujie@glut.edu.cn)
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更新日期/Last Update: 2020-08-04