A structure that can develop into a functional mitochondrion; specifically a structure, present in certain yeast cells growing under anaerobic conditions, which can develop into a functioning mitochondrion on exposure to aerobic conditions.
Origin
1960s; earliest use found in American Journal of Botany.
Definition of promitochondrion in US English:
promitochondrion
noun
Biology
A structure that can develop into a functional mitochondrion; specifically a structure, present in certain yeast cells growing under anaerobic conditions, which can develop into a functioning mitochondrion on exposure to aerobic conditions.
Origin
1960s; earliest use found in American Journal of Botany.