These cells, recognize, ingest, and kill cellular microbes by the process of phagocytosis and intracellular pathogens by the process of Autophagocytosis / Autophagy (or autophagy)
The microorganisms are recognized
Mononuclear phagocytes are also indispensable for host defense against systemic C. albicans infection
For example, Ly6C+ monocytes and CX3CR1+ macrophages can directly phagocytose fungi and help neutrophils eliminate fungi indirectly by mediating tissue inflammation
see also:
Candidiasis
Microbial associated molecular patterns (MAMPs)
Opsonization / Opsonin
Phagocytic Activity / Phagocytosis