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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Front+Microbiol
2016 ; 7
(ä): 485
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A Tet-on and Cre-loxP Based Genetic Engineering System for Convenient Recycling
of Selection Markers in Penicillium oxalicum
#MMPMID27148179
Jiang B
; Zhang R
; Feng D
; Wang F
; Liu K
; Jiang Y
; Niu K
; Yuan Q
; Wang M
; Wang H
; Zhang Y
; Fang X
Front Microbiol
2016[]; 7
(ä): 485
PMID27148179
show ga
The lack of selective markers has been a key problem preventing multistep genetic
engineering in filamentous fungi, particularly for industrial species such as the
lignocellulose degrading Penicillium oxalicum JUA10-1(formerly named as
Penicillium decumbens). To resolve this problem, we constructed a genetic
manipulation system taking advantage of two established genetic systems: the
Cre-loxP system and Tet-on system in P. oxalicum JUA10-1. This system is
efficient and convenient. The expression of Cre recombinase was activated by
doxycycline since it was controlled by Tet-on system. Using this system, two
genes, ligD and bglI, were sequentially disrupted by loxP flanked ptrA. The
successful application of this procedure will provide a useful tool for genetic
engineering in filamentous fungi. This system will also play an important role in
improving the productivity of interesting products and minimizing by-product when
fermented by filamentous fungi.