Magnaporthe oryzae endopolygalacturonase homolog correlates with density-dependent conidial germination

Takuma Mori, Hee-Young Jung, Kensaku Maejima, Hisae Hirata, Misako Himeno, Hiroshi Hamamoto, Shigetou Namba
2008 FEMS Microbiology Letters  
Endopolygalacturonases (endoPGs) of some phytopathogens are virulent factors for dicots. To investigate the function of the endoPG of Magnaporthe oryzae, a disruption mutant of MGG_08938, the homolog of endoPG found in the genome database of this fungus, was generated. The pathogenicity, mycelial growth, and appressorium formation of this mutant were comparable with those of the wild-type strain; however, the germination of conidia in a highly concentrated suspension of conidia was affected by
more » ... he mutation. Whereas the germination of the wild-type strain was inhibited at high concentrations, this effect was canceled out by disruption by the endoPG homolog gene. The authors named the gene MDG1 (M. oryzae density-dependent germination), which delineates this new function in the fungus.
doi:10.1111/j.1574-6968.2008.01062.x pmid:18218020 fatcat:7jvfalvr45ewhmcxfaicn4fkpm