|Table of Contents|

Salicylic Acid Regulates the Physiological Mechanism of Acid RainStress Tolerance in Loropetalum chinense var.rubrum

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年12
Page:
51-58
Research Field:
Publishing date:

Info

Title:
Salicylic Acid Regulates the Physiological Mechanism of Acid RainStress Tolerance in Loropetalum chinense var.rubrum
Author(s):
WANG Kai; TAO Xingmei; LIU Zhao; CHEN Jiao; LI Xiaoqin; ZHANG Yongfu
(School of Agriculture and Life Sciences，Kunming University，Kunming，Yunnan 650214)
Keywords:
Loropetalum chinense var.rubrum; acid rain stress; salicylic acid; physiological mechanisms; ornamental
PACS:
-
DOI:
10.11937/bfyy.20224277
Abstract:
Taking Loropetalum chinense var.rubrum as test material，selection of methods to simulate acid rain stress，the physiological responses of foliar sprays with different concentrations of salicylic acid (SA) to acid rain stress in Loropetalum chinense var.rubrum were investigated,in order to provide reference for improving the tolerance ability of Loropetalum chinense var. rubrum under acid rain stress.The results showed that,intensification of membrane lipid peroxidation in the leaves of Loropetalum chinense var. rubrum under acid rain stress，decreased osmoregulatory capacity and reduced content of pigmented substances，and a certain concentration of SA could significantly improve the osmoregulatory ability of the leaves of Loropetalum chinense var. rubrum under acid rain stress，reduce oxygen radical production rate and malondialdehyde (MDA) accumulation，mitigation of acid rain stress damage to Loropetalum chinense var. rubrum，increase chlorophyll (Chl)，carotenoid (Car)，anthocyanin glycosides and other phenolic contents，enhance its tolerance to acid rain stress and maintain a high level of ornamental quality，among them，0.4 mmol?L-1 SA was the most effective，while the promotion effect of 1.6 mmol?L-1 SA was diminished.

References:

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Last Update: 2023-07-31