|Table of Contents|

Analysis of the Growth-Promoting Function of Alcaligenes sp. YNR32041 on Astragalus membranaceus Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年19
Page:
100-105
Research Field:
Publishing date:

Info

Title:
Analysis of the Growth-Promoting Function of Alcaligenes sp. YNR32041 on Astragalus membranaceus Seedlings
Author(s):
LIU Xu1; MIAO Liyun2; LIU Ting1; LIN Aihua1; GENG Hong1; ZHANG Peng1
(1.College of Life Sciences,South-Central Minzu University,Wuhan,Hubei 430074;2.College of Basic Medical Sciences,Shanxi University of Chinese Medicine,Jinzhong,Shanxi 030619)
Keywords:
Alcaligenes sp.; endophytic bacterium; Astragalus membranaceus; growth; physiological indexes; astragalus saponins
PACS:
S 567.9
DOI:
10.11937/bfyy.20230361
Abstract:
Astragalus membranaceus seedlings were used as materials,and the effects of Alcaligenes sp.YNR32041 on the growth indexes,physiological indexes and the expression levels of genes related to astragalus saponins were investigated by pot experiments,in order to provide reference for the use of endophytic microorganisms to ensure and improve the quality of artificially planted A.membranaceus. The results showed that applying Alcaligenes sp.YNR32041 could promote the growth of A.membranaceus seedlings,and play a various role in the physiological indexes related to growth and stress resistance,including the improvement of soluble protein content and POD activity as well as the contents of starch,ethylene (ETH),zeatin (ZT) and ethylene synthetase activity,meanwhile the declining of abscisic acid (ABA) content.Applying Alcaligenes sp. YNR32041 could increase the expression levels of six genes related to astragalus saponins,and the relative expression levels of the HMGR,IDI,FPS,SS,SE and CAS genes in the A.membranaceus seedlings on the 15th day of co-culture were 9.14,5.74,8.27,7.37,11.75 times and 28.26 times of those of the control,respectively.

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Last Update: 2023-11-29