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园艺学报 ›› 2006, Vol. 33 ›› Issue (6): 1331-1334.

• 研究报告 • 上一篇    下一篇

无蔓南瓜对外源GA3 处理的生理反应

虞慧芳1, 2;曹家树1;武涛1   

  1. (1 浙江大学蔬菜研究所, 浙江杭州310029; 2 浙江省农业科学研究院蔬菜研究所, 浙江杭州310021)
  • 收稿日期:2006-07-17 修回日期:2006-10-24 出版日期:2006-12-25 发布日期:2006-12-25
  • 通讯作者: 曹家树

Physiological Response of Dwarf Pumpkin on Exogenous GA3 Treatment

Yu Huifang1, 2;Cao Jiashu1;Wu Tao1   

  1. ( 1 Institute of Vegetable Science, Zhejiang University, Hangzhou, Zhejiang 310029, China; 2 Institute of Vegetable Science, Academy of Zhejiang Agricultural Sciences, Hangzhou, Zhejiang 310021, China)
  • Received:2006-07-17 Revised:2006-10-24 Online:2006-12-25 Published:2006-12-25
  • Contact: Cao Jiashu

摘要: 研究了0.6 mmol·L - 1赤霉素GA3对无蔓南瓜叶片的叶绿素含量以及叶片和节间的过氧化氢
酶、愈创木酚过氧化物酶、超氧化物歧化酶、α - 淀粉酶和酸性磷酸酯酶的活性的影响。结果表明, 处理后的前3天, 叶片中叶绿素含量没有明显改变; 第6天处理的叶片中叶绿素含量极显著低于对照的。赤霉素处理对无蔓南瓜节间中α - 淀粉酶活性、过氧化氢酶活性和超氧化物歧化酶活性影响在第3天(或第1~3天) 提高显著; 到第6天, 酸性磷酸酯酶活性逐渐增强; 第9天, 过氧化物酶活性开始逐渐提高。

关键词: 南瓜, 赤霉素, 生理反应

Abstract: We studied the physiological influence of exogenous GA3 on‘Wuman 1’. The chlorophyll content and the activities of catalase (CAT) , guaiacol peroxidase (G-POD) , superoxide dismutase ( SOD) ,α-amylase and acid phosphatase were compared between control and treated pumpkin plants with GA3. The results showed that the chlorophyll content had no significant change in pumpkin leaves in three day after treatment with GA3 ; The chlorophyll content in treated pumpkin leaves was significantly decreased in treated pumpkin leaves on the sixth day after treatmentwith GA3; The activities of α-amylase, CAT and SOD were increased in three days after treatment, and the activities of acid phosphatase and G-POD were gradually increased in six days and nine days after treatment, respectively.

Key words: Pumpkin, Cucurbita moschata, Gibberellin, Physiological response

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