|Table of Contents|

Exogenous Nitric Induced Physiological Response of Capsicum annuum L.Under UV-B Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年07
Page:
8-13
Research Field:
Publishing date:

Info

Title:
Exogenous Nitric Induced Physiological Response of Capsicum annuum L.Under UV-B Stress
Author(s):
CHEN Yuan1WANG Yuanhui1PI Jing1HE Huiliu2GUO Hang1WANG Zhijin1
(1.Chongqing Academy of Agricultural Sciences,Chongqing 401329;2.Chongqing City Management College,Chongqing 401331)
Keywords:
Capsicum annuum L.UV-B stressexogenous nitricphotosynthesisantioxidant
PACS:
-
DOI:
10.11937/bfyy.20202763
Abstract:
In this study,the effects of different concentrations of exogenous nitric donor sodium nitroprusside (SNP) on physiological characteristics of Capsicum annuum L.under UV-B stress was studied using pepper in fruit period in order to procide a scientific basis for Capsicum annuum L.cultivation and production.The results showed that under UV-B stress,spraying SNP (3 mmol?L-1) significantly increased photosynthetic pigment content,photosynthetic fluorescence parameters Fv/Fm,antioxidant enzyme activities (SOD,POD,CAT) and soluble sugar content in Capsicum annuum L.leaves.Photosynthetic fluorescence parameters Fo and MDA content were significantly reduced;thereby alleviating the damage of chili by UV-B radiation.Exogenous nitric participates in the response and defense of Capsicum annuum L.to UV-B stress,increases the resistance of Capsicum annuum L.to UV-B stress.

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Last Update: 2021-06-10