“东岳红霞”元宝枫嫩枝对盐胁迫的响应及耐盐性评价  

Response of Tender Branches of Acer truncatum to Salt Stress and Evaluation of Salt tolerance in the"Dongyue Hongxia"Region

作　　者：张玉璞 韩聪颖 孙忠奎 程甜甜[3] 燕语 谢宪 吕福堂[1] ZHANG Yupu;HAN Congying;SUN Zhongkui;CHENG Tiantian;YAN Yu;XIE Xian;LV Futang(College of Agronomy and Agricultural Engineering,Liaocheng University,Shandong Liaocheng 252000;Tai'an Times Garden Technology Development Company,Shandong Tai an 271000;Mount Taishan Forestry Research Institute of Tai'an City,Shandong Tai'an 271000)

机构地区：[1]聊城大学农学与农业工程学院,山东聊城252000 [2]泰安时代园林科技开发公司,山东泰安271000 [3]泰安市泰山林业科学研究院,山东泰安271000

出　　处：《山东林业科技》2023年第6期47-52,65,共7页Journal of Shandong Forestry Science and Technology

基　　金：山东省农业良种工程项目(2019LZGC01804);泰安市科技创新重大专项(农业良种)项目“元宝枫新品种定向选育及示范应用”(2023NYLZ03)。

摘　　要：以当年生“东岳红霞”元宝枫嫩枝为研究对象,通过枝条水培法进行盐胁迫试验,探究其叶片生理指标响应机制,分析元宝枫的抗盐胁迫能力。随着盐浓度增加和胁迫时间的延长,元宝枫会产生不同程度的响应,相对电导率和脯氨酸含量呈上升趋势,过氧化氢酶、过氧化物酶和可溶性蛋白含量呈“先升后降”趋势,丙二醛和可溶性糖含量呈“先降后升”趋势,植物叶片叶绿素含量整体呈不断波动的趋势。表明元宝枫嫩枝在水培状态下具有一定抗盐胁迫能力,在中低盐胁迫下可通过提高抗氧化酶活性、累积渗透调节物质及调节细胞膜的透性缓解盐害,维持植物的正常生理代谢,为元宝枫在盐胁迫环境中的生长发育提供理论支撑。Taking the tender branches of the Dongyue Hongxia'Acer truncatum as the research object,salt stress experiments were conducted using the branch hydroponic method to explore the response mechanism of its leaf physiological indicators and analyze the salt stress resistance ability of Acer truncatum.As the salt concentration increases and the stress time prolongs,Acer truncatum will exhibit varying degrees of response.The relative conductivity and proline content show an upward trend,while the content of catalase,peroxidase,and soluble protein shows a"first increase and then decrease"trend.The content of malondialdehyde and soluble sugar shows a"first decrease and then increase"trend,and the overall chlorophyll content of plant leaves shows a continuous fluctuation trend.This indicates that the tender branches of Acer truncatum have a certain ability to resist salt stress under hydroponic conditions.Under medium to low salt stress,it can alleviate salt damage by increasing antioxidant enzyme activity,accumulating osmotic regulatory substances,and regulating cell membrane permeability,maintaining normal physiological metabolism of the plant,and providing theoretical support for the growth and development of Acer truncatum in salt stress environments.

关 键 词：元宝枫 水培 盐胁迫 耐盐能力 生理特性 

分 类 号：S792.35[农业科学—林木遗传育种]