part_of part of part of only in taxon only_in_taxon in taxon melanocyte melanosome cellular_component Wikipedia:Melanosome A tissue-specific, membrane-bounded cytoplasmic organelle within which melanin pigments are synthesized and stored. Melanosomes are synthesized in melanocyte cells. GO:0042470 pigment granule Metazoa Schizosaccharomyces Caenorhabditis