油菜素内酯对低氧胁迫黄瓜幼苗根系多胺、ATPase活性及无机离子含量的影响

生态学杂志

油菜素内酯对低氧胁迫黄瓜幼苗根系多胺、ATPase活性及无机离子含量的影响

陆晓民^1,2,郭世荣^1**

（¹南京农业大学园艺学院农业部南方蔬菜遗传改良重点开放实验室，南京 210095； ²安徽科技学院，安徽凤阳 233100）

出版日期:2013-03-10 发布日期:2013-03-10

Effects of brassinolide on the polyamines, ATPase activity, and inorganic ion content in roots of cucumber seedlings under hypoxia stress.

LU Xiao-min^1,2, GUO Shi-rong^1**

(¹Ministry of Agriculture Key Laboratory of Southern Vegetable Crop Genetic Improvement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; ²Anhui Science and Technology University, Fengyang 233100, Anhui, China)

Online:2013-03-10 Published:2013-03-10

摘要/Abstract

摘要：

研究了24-表油菜素内酯(EBR)对低氧胁迫黄瓜幼苗根系多胺、ATPase活性及无机离子含量的影响。结果表明，低氧导致根系内多胺(PAs)含量显著提高、(精胺+亚精胺)/腐胺的比值下降，而K⁺、Ca²⁺、Mg^2+、Zn²⁺含量及ATPase活性显著下降；与单纯的低氧处理相比，EBR可增加低氧黄瓜幼苗根系亚精胺(Spd)、精胺(Spm)含量及(精胺+亚精胺)/腐胺的比值，显著提高ATPase活性及Ca²⁺、Mg²⁺、Fe³⁺、Mn²⁺含量。可见，EBR可调节幼苗根系多胺变化，有效提高ATPase活性，促进无机离子的吸收，缓解了低氧的伤害。

关键词: 竹笋夜蛾, 笋秀夜蛾, 性信息素, 触角电位反应, 雄蛾行为

Abstract:

A laboratory experiment was conducted to study the effects of 24-epibrassinolide (EBR) on the polyamines
(PAs), inorganic ion content, and ATPase activity in roots of cucumber seedlings under hypoxia stress. Hypoxia stress induced the significant increase of PAs, the decrease of (Spd+Spm)/Put ratio, and the significant decrease of K⁺, Ca²⁺, Mg²⁺, and Zn²⁺ contents and of ATPase activity. EBR could increase the Spm and Spd contents and the (Spd + Spm)/Put ratio under hypoxia stress, and in addition, significantly increase the Ca²⁺, Mg²⁺, Fe³⁺, and Mn²⁺ contents and the ATPase activity. It was suggested that EBR could regulate the PAs content, increase the ATPase activity, enhance the inorganic ion content, and thereby, alleviate the damage of hypoxia stress.

Key words: bamboo shoot borer, Apamea apameoides, sex pheromone, electroantennogram (EAG) , response, male behavior.

陆晓民1,2,郭世荣1**. 油菜素内酯对低氧胁迫黄瓜幼苗根系多胺、ATPase活性及无机离子含量的影响[J]. 生态学杂志.

LU Xiao-min1,2, GUO Shi-rong1**. Effects of brassinolide on the polyamines, ATPase activity, and inorganic ion content in roots of cucumber seedlings under hypoxia stress.[J]. cje.

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