4种钙素调节剂对乙烯诱导的紫花擎天凤梨花芽分化中钙和钙调素含量的影响  

Effect of Four Calcium Begulators on Calcium and Calmodulin Contents During Flower Bud Differentiation of Guzmania'Amaranth'Inducced by Ethylene

作　　者：易籽林[1,2] 李志英 何铁光[2] 丛汉卿[1] 黄绵佳[3] 徐立[1] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所农业部热带种质资源利用开放重点实验室,海南儋州571737 [2]广西农业科学院蔬菜研究所,广西南宁530000 [3]海南大学,海南儋州571737

出　　处：《热带作物学报》2011年第4期698-701,共4页Chinese Journal of Tropical Crops

基　　金：海南省自然科学基金(No.808191);中国热带农业科学院博士启动基金(No.Pzsb0806;No.Rkyy0604);中央级公益性科研院所基本科研业务费专项资金(No.PZS004)

摘　　要：以紫花擎天凤梨(Guzmania‘Amaranth’)为试材,研究了外源乙烯催花条件下4种钙素调节剂对紫花擎天凤梨花芽分化过程中Ca和CaM(钙调素)含量的影响。结果表明:各处理紫花擎天凤梨花芽中Ca和CaM在花芽孕育期积累,在花芽发端期降低。促进剂A23187处理可显著提高总Ca和CaM的含量,提早CaM峰值出现,促进花芽分化;EGTA处理可显著降低Ca和CaM的含量,推迟Ca峰值出现,延缓花芽分化;而TFP、W-7处理也可显著降低Ca和CaM的含量,延缓花芽分化。研究发现,Ca和CaM参与了乙烯诱导的花芽分化过程。Using Guzmania ＇Amaranth＇ [G. wittmackii （Andre） Andre ex Mez×G. lingulata （Linnaeus） Mez] as the materials, the effects of 4 calcium regulators on the floral buds differentiation and contents of Calcium and Calmodulin of Guzmania ＇Amaranth＇ under exogenous ethylene treatments were studied. A23187 treatment enhanced the contents of Ca and CaM of during the flower bud differentiation, and promoted the flower bud differentiation. EGTA treatment reduced the contents of Ca and CaM during the flower bud differentiation, and delayed the accumulation of Ca and CaM, which inhibited the flower bud differentiation. It showed that Ca and CaM maight be involved in the process of ethylene-induced flower bud differentiation.

关 键 词：钙 钙调素 花芽分化 紫花擎天凤梨 

分 类 号：S668.3[农业科学—果树学]