SHI Qijin,WANG Xiaohan,REN Guangxi,et al.Construction of ATMT System for Clonostachys rosea and Its Conditional Optimization of Colonization into Glycyrrhiza uralensis Seeds[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(04):126-133.
SHI Qijin,WANG Xiaohan,REN Guangxi,et al.Construction of ATMT System for Clonostachys rosea and Its Conditional Optimization of Colonization into Glycyrrhiza uralensis Seeds[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(04):126-133. DOI: 10.13422/j.cnki.syfjx.20220748.
Construction of ATMT System for Clonostachys rosea and Its Conditional Optimization of Colonization into Glycyrrhiza uralensis Seeds
seeds, was established and optimized, and orthogonal test was designed to optimize the colonization conditions of
C. rosea
for
G. uralensis
seeds, so as to lay foundation for the development of biofertilizer and the breeding of high-quality
G. uralensis
.
Method
2
The conditions of ATMT were optimized from three aspects, including the concentration of acetosyringone, co-culture time and the concentration of conidia of recipient fungi. Then, high-quality transformants were selected. Orthogonal test was used to optimize the colonization conditions by taking co-culture temperature, co-culture time and spore concentration as factors and colonization rate as index.
Result
2
When spore concentration was 1×10
7
cfu·mL
-1
, acetosyringone concentration was 150 μmol·L
-1
and the co-culture time was 60 h, the transformation efficiency of
C. rosea
was the highest, which was 135 transformants per 1×10
7
recipient fungal spores. The accuracy and stability of the transformations were tested by cloning the marker gene green fluorescent protein (
GFP
) and
β
-glucuronidase (GUS) staining. When co-culture temperature was 25 ℃, co-culture time was 36 h and the spore concentration was 1×10
6
cfu·mL
-1
, the colonizing rate for
C. rosea
back dyeing into
G. uralensis
seeds by seed soaking method was the highest, which was 71.11%.
Conclusion
2
This study successfully establishes stable and efficient technical systems not only of ATMT in
C. rosea
, but also of colonization of the transformants into
G. uralensis
seeds, which can lay a foundation for the development of biofertilizer of
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