NDLI: Towards a novel efficient T-DNA-based mutagenesis and screening system using green fluorescent protein as a vital reporter in the industrially important fungus Trichoderma reesei

Content Provider	Springer Nature Link
Author	Zhong, Yaohua Yu, Haina Wang, Xiaoli Lu, Yi Wang, Tianhong
Copyright Year	2010
Abstract	Agrobacterium-mediated T-DNA transfer has been proven to be an efficient strategy for insertional mutagenesis and elucidation of gene function in filamentous fungi. The implementation of large-scale T-DNA insertional mutagenesis requires the development of high-efficient transformation and high-throughput screening procedures. Here, using green fluorescent protein (GFP) as a vital marker, a highly efficient T-DNA-based mutagenesis and screening system was developed in Trichoderma reesei. The uridine auxotrophic T. reesei M23 as the host was transformed with A. tumefaciens EH105 strain harboring a binary vector pC-OEP, which beared the pyrG gene for primary selection on minimal medium without uridine and the egfp gene for fluorescence-based rapid screening of the mitotically stable transformants. The efficiency of transformation was up to 10–20 transformants per 10$^{5}$ target conidia. Microscopic examination revealed strong GFP expression and fluorescence emission in conidia, growing hyphae and mycelia. An effective and convenient screening procedure using 96-well plates and multilabel counter for fluorescence intensity counting was developed to rapidly identify the T-DNA tagged T. reesei mutants. Furthermore, the presence of T-DNA integration at random sites in the genome was confirmed by Southern blot analysis. This report of the T-DNA-based mutagenesis and rapid screening system using GFP as a vital reporter provides a promising strategy to speeding up the genome-scale T-DNA insertional mutagenesis and functional genomics analysis of this cellulolytic fungus T. reesei.
Starting Page	4145
Ending Page	4151
Page Count	7
File Format	PDF
ISSN	03014851
Journal	Molecular Biology Reports
Volume Number	38
Issue Number	6
e-ISSN	15734978
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-11-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Agrobacterium-mediated transformation Green fluorescent protein T-DNA insertional mutagenesis Trichoderma reesei Animal Anatomy / Morphology / Histology Animal Biochemistry
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology

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