SAPROFITHO pusida va— rastani), rastanihoeand, ki az hisobi moddahoi organikii tayyori organizmhoi murda va jonvaroni zinda gizo mekunand. Az rui navi gizogiriashon Saprofitho ba organizm^oi geterotrofi mansuband. Saprofitho S. yakjoya bo organizmuoi avtotrofi dar gardshpi moddaho dar tabiat mavqei muhim dorand.
Onho moddahoi organikii tani hayvonhoi murda va moddahoero, ki hayvonhoi zinda judo mekunand, to ba ob, gazi karbonat, ammiak va moddahoi gayriorganiki tajziya menamoyand. Saprofitho khususan dar bayni bakteriyaho, aktinomisetho va zanburugho khele bisyorand. Az obsabzho politoma (az oilai khlamidomonadaho) va prototeka (az oilai protokokkho) ba Saprofitho mansuband. Baze Saprofitho metavonand bo vositai khurok ba organizmhoi zinda guzarand; yak qator organizmhoi fo- tosintezkunanda (masalan, obsabzhoi sabz) niz chun saprofit gizo girifta metavonand.