|本期目录/Table of Contents|

[1]季杨,梁小玉,易军,等.Na+在鸭茅适应抗氧化防御和渗透胁迫中的生理作用[J].江苏农业科学,2018,46(14):160-163.
 Ji Yang,et al.Physiological role of Na+ in adaption of orchardgrass to antioxidant defence and osmotic stress[J].Jiangsu Agricultural Sciences,2018,46(14):160-163.
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Na+在鸭茅适应抗氧化防御和渗透胁迫中的生理作用(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第46卷
期数:
2018年第14期
页码:
160-163
栏目:
畜牧兽医与水产蚕桑
出版日期:
2018-07-25

文章信息/Info

Title:
Physiological role of Na+ in adaption of orchardgrass to antioxidant defence and osmotic stress
作者:
季杨 梁小玉 易军 胡远彬
四川省畜牧科学研究院,四川成都 610066
Author(s):
Ji Yanget al
关键词:
鸭茅水分胁迫氯化钠抗氧化酶渗透调节
Keywords:
-
分类号:
S543+.301
DOI:
-
文献标志码:
A
摘要:
以鸭茅敏感型材料“01998”为供试材料,测定水分胁迫下NaCl对中生植物鸭茅膜相对透性和膜脂过氧化、保护酶活性和有机渗透调节物质含量的影响,探讨了Na+在鸭茅抗旱方面所起的作用。结果显示,添加50 mmol/L NaCl处理能显著提高水分胁迫下叶片相对含水量和根系活力;显著增强水分胁迫下叶片SOD、POD、CAT活性,提高细胞膜的稳定性,降低电解质渗透率和MDA含量,缓解水分胁迫导致的细胞氧化性损伤;50 mmol/L NaCl预处理使水分胁迫下鸭茅叶片内可溶性糖和游离脯氨酸含量显著低于PEG处理。说明外源NaCl预处理能显著提高鸭茅的抗旱性的原因并非促进了植物体内有机渗透调节物质的积累,而是与部分旱生植物一样是通过富集无机渗透调节物质Na+来平衡细胞渗透压,从而提高其渗透调节能力来发挥作用。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2017-2-26
基金项目:国家自然科学基金(编号:31601364);四川省公益性科研院所基本科研业务费专项资金(编号:SASA2014A01);四川省“十三五”饲草育种公关项目(编号:2016NYZ0039-4)。
作者简介:季杨(1983—),男,四川成都人,博士,副研究员,主要从事饲草资源挖掘及遗传育种研究。E-mail:jiyang221@163.com。
通信作者:梁小玉,博士,副研究员,主要从事饲草资源及育种研究。E-mail:liangxiaoyucao@163.com。
更新日期/Last Update: 2018-07-20