华北农学报 ›› 2004, Vol. 19 ›› Issue (3): 55-58. doi: 10.3321/j.issn:1000-7091.2004.03.013

所属专题: 苹果

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外源物质处理对高温胁迫下苹果果实抗氧化能力的影响

张建光, 李英丽, 邸葆, 张健强, 刘玉芳   

  1. 河北农业大学, 园艺学院, 河北保定 071001
  • 收稿日期:2004-03-19 出版日期:2004-09-28
  • 作者简介:张建光(1957-),男,河北武安人,教授,博士,硕士生导师,主要从事果树栽培及生理教学和研究工作.
  • 基金资助:
    河北省自然科学基金资助项目(303203);河北农业大学回国留学人员科研启动基金资助项目(2002-0915)

Effect of Exogenous Agents on Apple Fruit Resistance to Oxidative Stress under High Temperature Condition

ZHANG Jian-guang, LI Ying-li, DI Bao, ZHANG Jian-qiang, LIU Yu-fang   

  1. College of Horticulture, Agricultural University of Hebei, Baoding 071001, China
  • Received:2004-03-19 Published:2004-09-28

摘要: 高温胁迫下,果实表皮组织抗氧化代谢变化的总趋势是O2-·和MDA含量升高,当胁迫在一定范围内,SOD和POD活性上升;超过一定限度,SOD和POD活性下降.外源自由基产生剂能够增加内源O2-·的含量,同时极显著提高SOD的活性.试验结果表明,在5℃温度胁迫下,果实表皮组织O2-·含量增加1.52%~61.70%;SOD活性提高1.07~1.66倍.不同种类外源活性氧产生剂对内源O2-·含量的影响效能有所不同.碱性二亚硫酸钠可直接产生O2-,所以诱导内源O2-·合成的效果更大一些.不同种类外源物质均可显著或极显著提高果实表皮组织SOD和POD活性,提高果实的抗热性.

关键词: 外源物质, 苹果, 果实, 高温胁迫, 抗氧化

Abstract: A tendency towards fruit resistance to oxidative stress was found that the contents of OZ' and MDA increased during high temperature treatment and the activities of SOD and POD rose within a certain range and decreased under severer stress. Spraying with exogenous agents could significantly raise OZ content and SOD activities. In the present test,the OZ content in fruit rose by 14.52%一61.70 % and SOD activity by 1.07一1.66 times, respectively. Effect of active oxygen agents on enhancing synthesis of呀content in fruit varied with different types of formulations, with a significant influence exerted by Na2Szq which could release q‘directly. In addition, SA,SBN and Vc could increase SOD and POD activities in fruit effectively, thus re-suiting in an accumulation of system acquired resistance (5AR) to heat.

Key words: Exogenous agents, Apple, Fruit, High temperature stress, Resistance to oxidation

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引用本文

张建光, 李英丽, 邸葆, 张健强, 刘玉芳. 外源物质处理对高温胁迫下苹果果实抗氧化能力的影响[J]. 华北农学报, 2004, 19(3): 55-58. doi: 10.3321/j.issn:1000-7091.2004.03.013.

ZHANG Jian-guang, LI Ying-li, DI Bao, ZHANG Jian-qiang, LIU Yu-fang. Effect of Exogenous Agents on Apple Fruit Resistance to Oxidative Stress under High Temperature Condition[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(3): 55-58. doi: 10.3321/j.issn:1000-7091.2004.03.013.

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