[1]尹冬梅,齐帅,张冬菊,等.脱落酸对涝渍胁迫下番茄光合生理特性的影响[J].北方园艺,2021,(24):1-7.[doi:10.11937/bfyy.20211204]
　YIN Dongmei,QI Shuai,ZHANG Dongju,et al.Effects of ABA on Photosynthetic and Physiological Characteristics of Tomato Under Waterlogging Stress[J].Northern Horticulture,2021,(24):1-7.[doi:10.11937/bfyy.20211204]
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脱落酸对涝渍胁迫下番茄光合生理特性的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2021年24 页码: 1-7 栏目: 出版日期: 2021-12-30
Title:
Effects of ABA on Photosynthetic and Physiological Characteristics of Tomato Under Waterlogging Stress
作者:
尹冬梅1; 齐帅1; 张冬菊2; 高巍1; 杨再强3
（1.上海应用技术大学 生态技术与工程学院，上海 201418；2.华维节水科技集团股份有限公司，上海 201505；3.南京信息工程大学 气象灾害预报预警与评估协同创新中心，江苏 南京 210044）
Author(s):
YIN Dongmei1; QI Shuai1; ZHANG Dongju2; GAO Wei1; YANG Zaiqiang3
(1.The Ecological Technique and Engineering College,Shanghai Institute of Technology，Shanghai 201418；2.Shanghai Huawei Water Saving Irrigation Co.Ltd.，Shanghai 201505;3.Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science & Technology,Nanjing,Jiangsu 210044)
关键词:
涝渍胁迫; 光合作用; 番茄; 脱落酸
Keywords:
waterlogging stress; photosynthesis; tomato; ABA
DOI:
10.11937/bfyy.20211204
文献标志码:
A
摘要:
以5个番茄株系为试材，包括ABA缺失突变体(LA0673)及其野生型(LA0535)，NCED过表达转基因株系rd29A:NCED1(#2，#7)及其野生型植株Mill.L.cv.New Yorker（WT），采用人工模拟涝渍胁迫的方法，研究番茄外部形态以及相关生理指标的变化，以期了解ABA对番茄光合生理的影响。结果表明：涝渍胁迫下，ABA缺失型LA0673叶片萎蔫并呈灰绿色、无气生根形成，其余4个株系均有气生根形成；5个株系的根系活力显著下降，其中，LA0673在涝渍处理7 d时已经死亡，LA0535的根系活力下降为0 d的634%、#7为962%、WT为314%、#2为643%；LA0673在淹水处理7 d时由于萎蔫造成叶绿素含量大幅增加，LA0535的叶绿素含量为0 d的5713%、#7为6098%、WT为6067%、#2为8030%；5个株系净光合速率（Pn）、气孔导度（Gs）和蒸腾速率（Tr）均下降，但LA0535、WT、#2和#7的Gs在淹水初期立即下降，早于LA0673；胞间二氧化碳浓度（Ci）均显著增加或稳定在较高的水平。结合外部形态的观察表明，在涝渍胁迫下，ABA通过调控气孔大小，密切参与了植物的光合作用；ABA通过促进番茄生成气生根或不定根，提高其耐涝性。
Abstract:
Taking five tomato lines as test materials,including ABA deficient mutant (LA0673) and its wild type (LA0535),NCED overexpressing transgenic strain RD29A:NCED1 (#2,#7) and its wild type plant Mill.L.cv.New Yorker (WT).Changes of tomato external morphology and related physiological indexes were studied by simulating waterlogging stress artificially,in order to understand the effect of ABA on photosynthetic physiology of tomato.The results showed that the leaves of LA0673 were wilting and showed a gray-green color,and there was no aerial roots in LA0673 under waterlogging stress,but there were a lot of aerial roots in the other 4 tomato lines;the root activity of five lines significantly decreased and LA0673 was dead at 7 days of waterlogging treatment,The root activity of LA0535 decreased to 634% of 0 day,962% of #7,314% of WT and 643% of #2;LA0673 showed a significant increase in chlorophyll content due to wilting on the 7 days of flooding treatment,and the other 4 lines showed a downward trend,the chlorophyll content of LA0535 was 5713% of 0 day,6098% of #7,6067% of WT and 8030% of #2;the net photosynthetic rate （Pn）,stomatal conductance （Gs） and transpiration rates （Tr） of five lines showed a downward trend;the Gs of LA0535,WT,#2 and #7 decreased immediately in the early waterlogging treatment,they were earlier than LA0673;the intracellular carbon dioxide concentration （Ci） of five lines increased significantly or stabilized at a high level.Combined with the observation of external morphological changes under waterlogging stress，it was suggested that ABA was closely involved in plant photosynthesis by regulating stomatal size;ABA improved waterlogging tolerance by promoting the aerial root or adventitious root formation of tomato.

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备注/Memo

第一作者简介：尹冬梅（1983-），女，博士，副教授，硕士生导师，现主要从事植物逆境生理与分子生物学等研究工作。E-mail：yindm@sit.edu.cn.责任作者：杨再强（1967-），男，博士，教授，博士生导师，现主要从事应用气象与设施农业气象灾害等研究工作。E-mail：yzq@nuist.edu.cn.基金项目：国家自然科学基金资助项目（31701963，41775104）；上海市科技兴农资助项目（2021-02-08-00-12-F00756）；上海市科委工程技术研究中心建设专项资助项目（17DZ2252300）；上海应用技术大学中青年教师科技人才发展基金资助项目（ZQ2021-21）。收稿日期：2021-03-20

更新日期/Last Update: 2022-03-16