31. The corresponding mating types in yeast, a non-filamentous ascomycete, are referred to as MATa and MAT?. 32. Haploid cells are those that have the ability to mate to haploids of the opposite mating type to form diploids. 33. Only during starvation conditions will cells commit to sexual conjugation, pairing and fusing with a cell of opposite mating type . 34. Yeast, for example, are isogamous sexual organisms which have two mating types which fuse and recombine their haploid genomes. 35. "Mortierella " forms zygospores that are the developmental consequence of plasmogamy between gametangia belonging to complementary mating types . 36. Sexual reproduction in " Phytophthora palmivora " requires the presence of opposite mating types known as A1 and A2. 37. In these yeasts mating occurs between two cells of opposite mating type and is controlled by the reciprocal action of pheromones. 38. Cells of each mating type release pheromones that induce mating through promotion of alterations in cells of the opposite mating type. 39. Cells of each mating type release pheromones that induce mating through promotion of alterations in cells of the opposite mating type . 40. Isolates are characterized as the " " or negative mating type of the " Arthroderma vanbreuseghemii " complex.
