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Effect of Secondary Metabolites of Plant Entophyte on Physiological Mechanism in Pepper Seedlings Under Drought Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年22期
Page:
29-32
Research Field:
Publishing date:

Info

Title:
Effect of Secondary Metabolites of Plant Entophyte on Physiological Mechanism in Pepper Seedlings Under Drought Stress
Author(s):
WANG Na; YANG Zhen; MA Xiao-ying; WANG Hong; ZHAO Ying; YANG Tao; ZHU Yong-gang; LI Yue
Microbial Engineering Centre，Liaoning Academy of Agricultural Sciences，Shenyang，Liaoning 110161
Keywords:
plant endophyte; pepper; drought stress; physiological mechanism
PACS:
S 641.3
DOI:
-
Abstract:
Taking secondary metabolites of plant entophyte as material，and pepper seedling as research object，PEG-6000 was used to simulate the drought stress environment，the effect of secondary metabolites of plant entophyte on plant height，leaf length，stem diameter，fresh weight，dry weight，the number of fibrous roots，leaf relative water content，relative membrane permeability，and content of proline of pepper seedling were investigated，the effect of secondary metabolites of plant entophyte on physiological mechanism in pepper seedlings under drought stress were studied.The results showed that，the plant height，leaf length，stem diameter，the number of fibrous roots，fresh weight，dry weight，leaf relative water content，and content of proline of the group treated by secondary metabolites were increased by 30.91%，14.76%，129.57%，33.33%，33.37%，43.79%，8.71%and 14.90%respectively compared to control (CK).The relative membrane permeability was decreased by 14.63%compared to CK.These results suggested the secondary metabolites of plant entophyte could enhance drought resistance ability of pepper seedlings through adjusting drought adaptability including morphology and physiological characteristics．

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Last Update: 2014-12-10