期刊论文

中文

园艺学报

0513-353X

2024

51

08

1881-1890

10.16420/j.issn.0513-353x.2023-0562

20B599:湖南省教育厅优秀青年项目 :国家林业和草原局重点学科 :湖南省双一流培育学科项目 2024JJ5627:湖南省自然科学基金面上项目 31701954:国家自然科学基金

本校为第一机构

以紫花含笑（Michelia crassipes）绿蕾期、紫蕾期、初开期花芽为试验材料进行生理生化指标测定，并利用UPLC–ESI–MS/MS测定内源激素动态变化。结果表明：可溶性糖、可溶性蛋白、叶绿素含量以及POD活性均随着花芽发育而下降；游离脯氨酸、丙二醛、花青素含量和SOD活性均在紫蕾期最高。整个发育过程中测得8类共49种激素物质，其中绿蕾期花芽内源激素以生长素、水杨酸和脱落酸为主，紫蕾期以生长素为主，初开期则以生长素和茉莉酸为主；赤霉素和乙烯类含量随着花发育呈上升趋势，细胞分裂素和独脚金内酯含量则呈下降趋势；富集分析表明不同发育期差异激素主要富集在次生代谢物合成途径。紫花含笑...

To study the physiological changes and endogenous hormones variation during the flower development of Michelia crassipes,the flower buds from green flower bud stage,purple flower bud stage and the first-open stage were collected,to measure the physiological indexes and the variant endogenous hormones.The results showed that the contents of soluble sugar,soluble protein,chlorophyll and POD activity were decreased during the development of flower bud.The contents of free proline,malondialdehyde,anthocyanin and SOD activity showed the highest value in purple bud stage.According to the UPLC-ESI-MS...