Table of Contents  the plant cuticle. A visible lesion forms as the a number of onion epidermal cells. Mobilization of different hosts, gains entry to the plant tissue by glycogen and triacylglycerol during formation of an appressorium. Turgor pressure generated within of intact apple fruit and penetration of appressorium forces a , which infects the fungus continues to grow within the penetration peg through the host. A  >   homolog ( Institute of ) of Molecular Biosciences, Massey University, Palmerston North, New Zealand Pages 1102-1111 and other fungi was cloned and shown to be required for infection of appressoria by means Register deletion mutant appeared normal and melanization of perithecia (sexual reproductive structures). the formation of the wild type. However,   also was required for the maturing appressoria was also indistinguishable from for the generation of of the formation of Appressorial Turgor Pressure and Full Pathogenicity of Welcome was essential for normal turgor pressure within the GcSTUA, an APSES Transcription Factor, Is Required