|Table of Contents|

Effects of Endophyte on the Drought Resistance of Dendrobium officinale Under Drought Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年06
Page:
119-125
Research Field:
Publishing date:

Info

Title:
Effects of Endophyte on the Drought Resistance of Dendrobium officinale Under Drought Stress
Author(s):
ZOU Hui; LIN Jiangbo; DAI Yimin; WANG Weiying
(Subtropical Agriculture Research Institute，Fujian Academy of Agricultural Sciences，Zhangzhou，Fujian 363005)
Keywords:
Dendrobium officinale; Epulorhiza sp.; drought stress
PACS:
-
DOI:
10.11937/bfyy.20192414
Abstract:
Dendrobium officinale seedlings from Liancheng Guanzhi Mountain were used as raw material.The fungi (Epulorhiza sp.) were irrigated into the plug seedlings of D.officinale and co-cultivated for 6 months，and subjected to drought stress.The changes of phenotype，survival rate，and physiological and biochemical indexes were assayed respectedly，which would provide a theoretical basis for revealing the relationship between endophytic fungi and D. officinale under drought stress.The results showed that the growth of seedlings has been enhanced by inoculating and co-cultivating with Epulorhiza sp.，and survival rate has been improved highly under drought stress，which was significantly different from the control without inoculation.Relative water content (RWC)，free proline content and the activities of superoxide dismutase (SOD) and catalase (CAT) were significantly higher than those of the control，while the relative permeability of the plasma membrane (PMP) and malondialdehyde (MDA) were decreased significantly，indicating that the Epulorhiza sp.could reduce the damage of membrane lipid peroxidation，improve the survival rate and drought resistance.These results would provide a reference for the drought resistance mechanism，cultivation，production and application of D.officinale.

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Last Update: 2020-05-26