The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.

The increase in size or mass of a symbiont, occurring in its host's organelle. The host is defined as the larger of the organisms involved in a symbiotic interaction.

The aggregation, arrangement and bonding together of a set of components, including (phenyl)phthiocerol, phthiodiolone, phthiotriol dimycocerosate and diphthioceranate, to form the DIM/DIP layer of the Actinobacterium-type cell wall.

The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.

The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.