Influences of genetically perturbing synthesis of the typical yellow pigment on conidiation, cell wall integrity, stress tolerance, and cellulase production in Trichoderma reesei

Author(s):  
Weixin Zhang ◽  
Ning An ◽  
Junqi Guo ◽  
Zhixing Wang ◽  
Xiangfeng Meng ◽  
...  
2020 ◽  
Vol 144 ◽  
pp. 103440 ◽  
Author(s):  
Guangya Zhao ◽  
Yueqiang Xu ◽  
Haomiao Ouyang ◽  
Yuanming Luo ◽  
Shutao Sun ◽  
...  

2006 ◽  
Vol 6 (2) ◽  
pp. 262-270 ◽  
Author(s):  
Mark S. Stewart ◽  
Sue Ann Krause ◽  
Josephine McGhie ◽  
Joseph V. Gray

ABSTRACT Pumilio family (PUF) proteins affect specific genes by binding to, and inhibiting the translation or stability of, their transcripts. The PUF domain is required and sufficient for this function. One Saccharomyces cerevisiae PUF protein, Mpt5p (also called Puf5p or Uth4p), promotes stress tolerance and replicative life span (the maximum number of doublings a mother cell can undergo before entering into senescence) by an unknown mechanism thought to partly overlap with, but to be independent of, the cell wall integrity (CWI) pathway. Here, we found that mpt5Δ mutants also display a short chronological life span (the time cells stay alive in saturated cultures in synthetic medium), a defect that is suppressed by activation of CWI signaling. We found that Mpt5p is an upstream activator of the CWI pathway: mpt5Δ mutants display the appropriate phenotypes and genetic interactions, display low basal activity of the pathway, and are defective in activation of the pathway upon thermal stress. A set of mRNAs that specifically bind to Mpt5p was recently reported. One such putative target, LRG1, encodes a GTPase-activating protein for Rho1p that directly links Mpt5p to CWI signaling: Lrg1p inhibits CWI signaling, LRG1 mRNA contains a consensus Mpt5p-binding site in its putative 3′ untranslated region, loss of Lrg1p suppresses the temperature sensitivity and CWI signaling defects of mpt5Δ mutants, and LRG1 mRNA abundance is inhibited by Mpt5p. We conclude that Mpt5p is required for normal replicative and chronological life spans and that the CWI pathway is a key and direct downstream target of this PUF protein.


2019 ◽  
Vol 65 (4) ◽  
pp. 1025-1040 ◽  
Author(s):  
Tingting Zhao ◽  
Huiting Tian ◽  
Yuxian Xia ◽  
Kai Jin

2014 ◽  
Vol 78 (2) ◽  
pp. 326-335 ◽  
Author(s):  
Taiki Futagami ◽  
Kazufumi Seto ◽  
Yasuhiro Kajiwara ◽  
Hideharu Takashita ◽  
Toshiro Omori ◽  
...  

2018 ◽  
Vol 63 (2) ◽  
pp. 115-129
Author(s):  
Rahela Carpa ◽  
◽  
Alin Cândea ◽  
Alexei Remizovschi ◽  
Lucian Barbu-Tudoran ◽  
...  

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