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| 白光下光敏素对番茄幼苗胚轴长度、花青素含量及开花的控制 | |
| 引用本文： | 陈静,陈启林,程智慧,徐春和.白光下光敏素对番茄幼苗胚轴长度、花青素含量及开花的控制[J].中国农业科学,2004,37(10):1517-1520. |
| 作者姓名： | 陈静 陈启林 程智慧 徐春和 |
| 作者单位： | 1. 西北农林科技大学生命科学学院,杨凌,712100 2. 中国科学院上海生命科学研究院/上海植物生理研究所,上海,200032 3. 西北农林科技大学园艺学院,杨凌,712100 |
| 基金项目： | 国家重点基础研究发展规划资助项目(G1998010100)，国家自然科学基金资助项目(30170079) |
| 摘 要： | 以番茄野生型（WT）和光敏素突变体phyA、phyB1、phyB2、phyB1phyB2和phyAphyB1phyB2为材料，研究了光敏素PHYA、PHYB1和PHYB2对番茄幼苗胚轴生长、花青素含量以及植株开花时间的影响。结果表明，白光下光敏素PHYA、PHYB1和PHYB2对番茄幼苗胚轴伸长和花青素合成的影响不同。PHYB1对胚轴伸长具有明显的抑制作用，同时促进花青素的合成。PHYA和PHYB2对胚轴伸长和花青素合成的影响程度较小，但是与PHYB1具有明显的互作效应。双突变体phyB1phyB2的首花节位和开花时间明显提前，三突变体phyAphyB1phyB2的第1～4 花序生长早期即停滞，花序极其微小。 |
| 关 键 词： | 番茄 光敏素 胚轴 花青素 开花 |
| 收稿时间： | 2003-10-9 |
Phytochrome Control of Hypocotyl Length,Anthocyanin Biosynthesis and Inflorescence Initiation of Tomato Plants Grown Under White Light |
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| CHEN Jing,CHEN Qi-lin,CHENG Zhi-hui,XU Chun-he.Phytochrome Control of Hypocotyl Length,Anthocyanin Biosynthesis and Inflorescence Initiation of Tomato Plants Grown Under White Light[J].Scientia Agricultura Sinica,2004,37(10):1517-1520. | |
| Authors: | CHEN Jing CHEN Qi-lin CHENG Zhi-hui XU Chun-he |
| Institution: | CHEN Jing1,CHEN Qi-lin2,CHENG Zhi-hui3,XU Chun-he2 |
| Abstract: | The wild type(WT) tomato and phytochrome mutants phyA, phyB1, phyB2, phyB1phyB2 and phyAphyB1phyB2 were used to study the effects of phytochrome on hypocotyl length, anthocyanin content and inflorescence initiation time. The results indicated that hypocotyl length and anthocyanin biosynthesis varied with phytochrome mutants. PHYB1 significantly inhibited hypocotyl elongation, but promoted anthocyanin biosynthesis. PHYA and PHYB2 showed relatively small influence on the two traits. However, PHYA and PHYB2 obviously interacted with PHYB1 to control hypocotyl elongation and anthocyanin biosynthesis. Double mutant phyB1phyB2 significantly promoted inflorescence initiation. The 1 - 4th inflorescences of triple mutant phyAphyB1phyB2 aborted at its early developmental stage, and resulted in extremely tiny ones. |
| Keywords: | Tomato Phytochrome Hypocotyl Anthocyanin Inflorescence initiation |
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