|Table of Contents|

Physiological and Biochemical Mechanism of Exogenous Spermidine Improving Drought Resistance in Melon Seedlings Under Drought Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年12
Page:
34-39
Research Field:
Publishing date:

Info

Title:
Physiological and Biochemical Mechanism of Exogenous Spermidine Improving Drought Resistance in Melon Seedlings Under Drought Stress
Author(s):
SUN Tianguo12ZHANG Meijuan12MA Tianyi12ZHAI Ying12LI Xiang1
(1.College of Life Sciences,Agriculture and Forestry,Qiqihar University,Qiqihar,Heilongjiang 161006;2.Heilongjiang Provincial Key Laboratory of Resistance Gene Engineering and Protection of Biodiversity in Cold Areas,Qiqihar,Heilongjiang 161006)
Keywords:
melon seedlingosmotic stressspermidineantioxidative system
PACS:
-
DOI:
10.11937/bfyy.20215174
Abstract:
‘Tiancuiwang’ melon seedlings was used as experimental matireials by nutrient solution culture experiments.The regulation mechanism of 1 mmol? L-1 spermidine(Spd) on drought resistance of melon seedlings under 20% PEG 6000 osmotic stress was studied,in order to provide reference for the study of polyamines in drought resistance.The results showed that spraying 1 mmol ? L-1 Spd under drought stress,activities of SOD,POD and CAT could be significantly increased.The contents of chlorophyll,proline,soluble sugar and soluble protein were improved.The content of MDA was reduced content.It indicated that exogenous Spd treatment could alleviate the damage caused by drought stress and enhance the tolerance of melon seedlings to drought environments.

References:

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Last Update: 2022-08-26