Journal of Biochemistry Research

Vegetative Compatibility

Vegetative compatibility is controlled by one to many nuclear genes that limit completion of hyphal anastomosis between colonies to people who belong to an equivalent vegetative compatibility group (usually abbreviated to v-c group). Members of a v-c group possess an equivalent vegetative compatibility alleles. Hyphal anastomosis is promiscuous in fungi, but compatibility of the cytoplasms determines whether cytoplasmic exchange will progress beyond the first few hyphal compartments involved in the initial interaction. Since the intracellular test for self/non-self-recognition (that is, vegetative compatibility) occurs after anastomosis, this is often called post-fusion incompatibility. If the colonies involved are not compatible the cells immediately involved in anastomosis are killed by a programmed necrobiosis response This strategy prevents transfer of nuclei .and other organelles between incompatible strains, but if the incompatibility reaction is slow, a virus or cytoplasmic plasmid may be communicated to adjacent undamaged cells before the incompatibility reaction kills the hyphal compartments where anastomosis occurred. Vegetative compatibility is different from, but has a controlling influence over, mating type function in terms of both population structure and genetic diversity. You must cope with a variety of terms that were applied to this research through the 20th century; half of which was done by ‘glass half-empty people’ who knew they were researching incompatibility, and therefore the spouse by ‘glass half-full people’ who were researching compatibility.

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