development of symbiont in host amastigogenesis https://github.com/geneontology/go-ontology/issues/21156 biological_process 2021-03-23T21:17:19Z The morphological, biochemical and genetic changes that induce the differentiation of metacyclic parasites into amastigotes in some of the Trypanosomatidae species such as Leishmania parasites and Trypanosoma cruzi. This process occurs inside the cells of the mammalian hosts, particularly in macrophages and other phagocytic cells for Leishmania parasites. krc GO:0120310