[1]苏文桢,李根新,朱强龙,等.邻苯二甲酸对辣椒种子萌发和幼苗生长的影响[J].北方园艺,2021,(24):8-15.[doi:10.11937/bfyy.20212734]
　SU Wenzhen,LI Genxin,ZHU Qianglong,et al.Effects of Phthalate on Seed Germination and Seedling Growth of Pepper[J].Northern Horticulture,2021,(24):8-15.[doi:10.11937/bfyy.20212734]
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邻苯二甲酸对辣椒种子萌发和幼苗生长的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2021年24 页码: 8-15 栏目: 出版日期: 2021-12-30
Title:
Effects of Phthalate on Seed Germination and Seedling Growth of Pepper
作者:
苏文桢; 李根新; 朱强龙; 张瑜; 王强; 吴才君
（江西农业大学 农学院，江西 南昌 330045）
Author(s):
SU Wenzhen; LI Genxin; ZHU Qianglong; ZHANG Yu; WANG Qiang; WU Caijun
(College of Agronomy，Jiangxi Agricultural University，Nanchang，Jiangxi 330045)
关键词:
辣椒; 邻苯二甲酸; 化感作用; 生理生化特性
Keywords:
pepper; phthalate; allelopathy; physiological and biochemical characteristics
DOI:
10.11937/bfyy.20212734
文献标志码:
A
摘要:
以“辛香8号”辣椒为试材，采用室内水培方法，研究了邻苯二甲酸（PA）处理(0.50、0.75、1.00、1.25、1.50、1.75、2.00 mmol·L-1)对辣椒种子活力指数、胚根长度和辣椒叶片生理生化指标的影响，以期为辣椒化感作用研究提供参考依据。结果表明：0.50 mmol·L-1 PA显著提高了辣椒种子的活力指数，促进了胚根生长，提高了幼苗叶片中叶绿素含量和最大光化学效率（Fv/Fm），0.75 mmol·L-1 处理H2O2含量最低，抗氧化酶活性进一步增强，浓度大于0.75 mmol·L-1时逐渐呈现出抑制效果，1.50 mmol·L-1 PA处理种子的活力指数显著降低50.17%，胚根长减少57.04%。PA处理后幼苗叶片中可溶性蛋白质（SP）含量和抗坏血酸过氧化物酶（APX）、过氧化氢酶（CAT）、过氧化物酶（POD）活性呈先增加后降低趋势，超氧化物歧化酶（SOD）活性一直保持下降趋势，H2O2含量先下降后升高。综上所述，辣椒幼苗通过提高体内SP含量、保护酶活性和降低H2O2含量抵抗PA胁迫。
Abstract:
Taking ‘Xinxiang No.8’ pepper varieties as materials,the phthalic acid (PA) treatment (0.50、0.75、1.00、1.25、1.50、1.75、2.00 mmol·L-1) on seed vigor index,radicle length and physiological and biochemical indexes of pepper leaves were studied by indoor hydroponic method,in order to provide theoretical basis for the allelopathy of pepper.The results showed that,0.50 mmol·L-1 PA significantly increased seed viability index,promoted radicle growth,increased chlorophyll content and maximum photochemical efficiency (Fv/Fm) in seedling leaves,and 0.75 mmol·L-1 PA significantly increased H2O2 content and antioxidant enzyme activity,while 0.75 mmol·L-1 PA significantly increased seed viability index,promoted radicle growth,increased chlorophyll content and maximum photochemical efficiency (Fv/Fm) in seedling leaves.When the concentration was higher than 0.75 mmol·L-1,the seed vigor index and radicle length were significantly reduced by 50.17% and 57.04% in 1.50 mmol·L-1 PA.After PA treatment,the soluble protein content (SP),the activities of APX,CAT and POD in seedling leaves increased firstly and then decreased,the activity of SOD kept decreasing,and the content of H2O2 decreased firstly and then increased.In conclusion,pepper seedlings can resist PA stress by increasing SP content,protective enzyme activity and decreasing H2O2 content.

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备注/Memo

第一作者简介：苏文桢（1996-），男，硕士研究生，研究方向为蔬菜逆境生理。E-mail：2529627653@qq.com.责任作者：吴才君（1964-），男，博士，教授，现主要从事蔬菜分子育种等研究工作。E-mail：wucj@126.com.基金项目：江西省现代农业科研协同创新专项经费资助项目（JXXTCX2015005-002）；江西省重点研发计划重大资助项目（20161ACF60015）；江西省现代农业产业技术体系建设资助项目（JXARS-06）。收稿日期：2021-06-29

更新日期/Last Update: 2022-03-19