GA3对杨梅叶片木质素水平及其相关酶活性和成花的影响

园艺学报 ›› 2001, Vol. 28 ›› Issue (2): 156-158.

GA₃对杨梅叶片木质素水平及其相关酶活性和成花的影响

李兴军¹; 李三玉¹; 吕均良¹; 汪国云²

(¹ 浙江大学农业与生物技术学院园艺系, 杭州310029; ² 浙江省余姚市林业局, 余姚315400)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-04-25 发布日期:2001-04-25

Effects of Gibberellin₃ on Leaf Lignin levels, Related Enzymes and Flower Formation in Bayberry

Li Xingjun¹, Li Sanyu¹, L Junliang¹, and Wang Guoyun²

(¹Department of Horticulture, College of Agriculture and Biotechnology, Zhej iang University, Hangzhou 310029; ²Foresty Bureau of Yuyao , Yuy’ao 315400)

Received:1900-01-01 Revised:1900-01-01 Online:2001-04-25 Published:2001-04-25

摘要/Abstract

摘要： ‘荸荠种’杨梅小年树花芽孕育初期, 苯丙氨酸解氨酶(PAL) 活性首先达到高峰; 之后多酚氧化酶(PPO) 活性出现高峰。花芽孕育盛期过氧化物酶(POD) 活性达到高峰, 且与木质素积累到最大值相一致。花芽发端期间, POD活性和木质素水平均降低。GA₃处理降低了花芽孕育期间PAL、PPO 和POD 的活性, 导致木质素合成滞缓, 抑制花芽发端和降低成花率。

关键词: 杨梅, 花芽分化, 木质素, 酶活性, 赤霉素

Abstract: Off year trees of ‘Biji’ bayberry were used to determine the effects of GA₃spraying on lignin level and its correlated enzymes activities in leaves during the period of flower bud physiological differentiation. At the initial stage of flower bud physiological differentiation, the activity of PAL increased to maximum, then followed by the activity of PPO. At the peak of flower bud physiological differentiation, both the activity of POD and the level of lignin increased to maximum. During the period of flower initiation, both the activity of POD and the content of lignin decreased. The treatment with GA₃spraying inhibited the activities of PAL, PPO and POD, slowed down the biosynthesis of lignin, surppressed the differentiation of flower buds and almost completely prevented the formation of flower bud. We concluded that GA₃ might inhibit the formation of flower bud by dropping down the accumulation of lignin.

Key words: Bayberry (Myrica rubra Bieb. et Zucc), Flower bud physiological differentiation, Lignin, Enzemy activity, Gibberellin₃

中图分类号:

李兴军;李三玉;吕均良;汪国云. GA₃对杨梅叶片木质素水平及其相关酶活性和成花的影响[J]. 园艺学报, 2001, 28(2): 156-158.

Li Xingjun;Li Sanyu;L Junliang;and Wang Guoyun. Effects of Gibberellin₃ on Leaf Lignin levels, Related Enzymes and Flower Formation in Bayberry[J]. ACTA HORTICULTURAE SINICA, 2001, 28(2): 156-158.

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GA₃对杨梅叶片木质素水平及其相关酶活性和成花的影响

Effects of Gibberellin₃ on Leaf Lignin levels, Related Enzymes and Flower Formation in Bayberry

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