水杨酸对茉莉生长及其部分生理指标的影响
Effects of Exogenous Salicylic Acid on Growth and Some Physiological Indexes in Jasminun sambac
文庆利 1陈亚菲 1张亚男 1段辉国2
作者信息
- 1. 内江师范学院生命科学学院，四川内江641100
- 2. 内江师范学院生命科学学院，四川内江641100; 四川省高等学校特色农业资源研究与利用重点实验室，四川内江641100
- 折叠
摘要
[目的]探究水杨酸（SA）对茉莉生长、开花及部分生理指标的影响。[方法]以盆栽茉莉为试验材料，对其幼苗叶片喷施不同浓度的SA溶液，分析其幼苗部分形态及生理生化指标的变化。[结果]喷施不同浓度SA溶液均能促使茉莉叶片和花的数量增多，且增幅均高于对照组，浓度为0．8 mmol／L的SA处理组叶片数量上升最为明显，浓度为1．2 mmol／L的SA处理组花数量上升幅度最大；SA在一定程度上可降低茉莉叶片丙二醛和可溶性糖含量；喷施一定浓度的SA可促进茉莉叶片脯氨酸含量的增加，SA浓度过高或过低均不利于叶片脯氨酸含量的增加。[结论]喷施适宜浓度的SA溶液可增加茉莉叶片膜系统的稳定性，提高其抗逆性，对茉莉的生长和开花具有较好的促进作用。
Abstract
Objective] To research the effects of exogenous salicylic acid (SA) on growth and some physiological indexes in Jasminun sam-bac (L.) Ait.[Method] With potted J.sambac as the test materials, SA solutions in different concentrations were sprayed to seedling leaves. Changes of some morphology and physiological indexes in seedlings were analyzed.[Result] The number of leaves and flowers in J.sambac seedlings increased after spraying different SA concentrations, and the increase range was all greater than that in control(CK).Leaf number in 0.8 mmol/L SA treatment group enhanced the most significantly.Flower number in 1.2 mmol/L SA treatment group had the greatest enhance-ment.SA reduced the malondialdehyde and soluble sugar contents in certain degrees.Spraying a given concentration of SA promoted the in-crease of proline content in J.sambac leaves.Too high or too low SA concentration was not helpful to the increase of proline content.[ Con-clusion] Spraying suitable SA concentration increases the stability of membrane system, enhances resistance and promotes the growth and flow-ering of J.sambac.
关键词
水杨酸/茉莉/生长/开花/生理指标Key words
Salicylic acid/Jasminun sambac ( L.) Ait./Growth/Flowering/Physiological index引用本文复制引用
基金项目
内江师范学院大学生科研项目(14NSD－32)
内江师范学院生物化学与分子生物学重点建设学科项目(内师院发［2012］96号)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据