|Table of Contents|

Effects of Nighttime Temperature on the Growth，PhysiologicalCharacteristics and Related Gene Expression of Astragalus membranaceus

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年12
Page:
91-98
Research Field:
Publishing date:

Info

Title:
Effects of Nighttime Temperature on the Growth，PhysiologicalCharacteristics and Related Gene Expression of Astragalus membranaceus
Author(s):
ZHANG Xun; YE Bengui
(West China School of Pharmacy，Sichuan University，Chengdu，Sichuan 610041)
Keywords:
night time temperature;  Astragalus membranaceus; bioactive compounds; secondary metabolites; gene expression
PACS:
-
DOI:
10.11937/bfyy.20223988
Abstract:
A pot experiment took Astragalus membranaceus as the test material，five nighttime temperatures (4，8，12，16，20 ℃) were set up to explore the effects of different nighttime temperatures on the growth，medicinal components and related gene expression of Astragalus membranaceus，in order to provide reference for the night management of Astragalus membranaceus.The results showed that nighttime temperature had a significant effect on the growth and development of Astragalus membranaceus.SPAD value and stomatal conductance of Astragalus membranaceus increased first and then decreased，and the effect of 16 ℃ was the best.It significantly promoted the root development and shoot growth of Astragalus membranaceus，increased dry matter weight，SPAD value and stomatal conductance.Furthermore，the nighttime temperature of 16 ℃ increased the content of primary metabolites (soluble sugars，starch) and secondary metabolites such as saponins，total phenols and isoflavones.Gene expression analysis showed that the expression of granule-bound starch synthase (AmGBSS)，ribulose diphosphate carboxylase (AmRBCL，ClGBSS) and ferredoxin (ClFDX) was significantly up-regulated when the nighttime temperature was 16 ℃.In conclusion，16 ℃ was the best nighttime temperature for the growth，development and quality of Astragalus membranaceus.

References:

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Last Update: 2023-07-31