Protein Phosphatase CgPpz1 Regulates Potassium Uptake, Stress Responses, and Plant Infection in

Protein phosphatases play important roles in the regulation of various cellular processes in eukaryotes. The ascomycete is a causal agent of anthracnose disease on some important crops and trees. In this study, , a protein phosphate gene and a homolog of yeast , was identified in . . Targeted gene deletion showed that CgPpz1 was important for vegetative growth and asexual development, conidial germination, and plant infection. Cytological examinations revealed that CgPpz1 was localized to the cytoplasm. The Δ mutant was hypersensitive to osmotic stresses, cell wall stressors, and oxidative stressors. Taken together, our results indicated that CgPpz1 plays an important role in the fungal development and virulence of . and the multiple stress responses generated.