南方农业学报2013，Vol.44Issue(1)：39-42,4.DOI:10.3969/j:issn.2095-1191.2013.1.39
杧果短截结果母枝玉米素核苷含量的动态变化
Dynamic changes in zeatin nucleoside (ZR) content of mango cutback fruit branch
摘要
Abstract
[Objective]The zeatin nucleoside (ZR) content in various organs of mango fruiting branches during the flower bud differentiation period was determined in order to explore the role of ZR in mango flower bud differentiation. [Method]Utilizing the phenomenon of re-blossoming and re-fruiting in mango pruning buds after cutting back the fruit branches, the enzyme-linked immunosorbent assay method (ELISA) was applied to determine the ZR contents in pruning leaf, phloem, and buds. [Result]After pruning the fruiting branches, the ZR contents of pruning leaf, phloem, and pruning buds reached minimum at 1.73, 1.52, and 2.0 μg·g-1FW on February 25, February 20, and March 2, respectively. The ZR contents of pruning leaf, phloem, and buds reached maximum at 6.39, 8.47, and 10.32 μg·g-1FW respectively on March 12. On February 25, the color of the central heart area in pruning buds gradually turned sallow and proliferated around the shoot area. From March 2 to March 7, the buds gradually dilated, sallow color deepened, and the central heart area appeared translucent. After March 7, green color expanded and the translucent appearance disappeared. [ Conclusion ] The ZR exhibited different roles at different stages of mango fruit flower bud differentiation. During the critical period of flower bud differentiation, the ZR content was low and the cell activity growth decreased, which were beneficial qualities for mango plants to transform from the bud physiological state into the flower bud physiological state. After the critical period of flower bud differentiation, relatively high ZR content was advantageous for the flower bud differentiation process in mango plant growth.关键词
杧果/花芽分化/结果母枝/短截/玉米素核苷Key words
mango/ flower bud differentiation/ fruiting branch/ cutback/ ZR分类
农业科技引用本文复制引用
彭磊,周玲,王莹,高小俊,龙雯虹,吴兴恩,李婷婷,刘娟..杧果短截结果母枝玉米素核苷含量的动态变化[J].南方农业学报,2013,44(1):39-42,4.基金项目
云南省应用基础研究计划项目(2007C0058M) （2007C0058M）
云南省教育厅科学研究基金项目(2010Y338) （2010Y338）
