formation of structure involved in a symbiotic process development of symbiont in host GO:0044124 GO:0044122 development of symbiont in host vascular tissue development of symbiont in host intercellular space biological_process The progression of an organism from an initial condition to a later condition, occurring within the cells or tissues of the host organism. This may (but not necessarily) include a filamentous growth form, and also can include secretion of proteases and lipases to break down host tissue. The host is defined as the larger of the organisms involved in a symbiotic interaction. 2009-07-30T03:39:25Z jl This term partially replaces the obsolete term 'growth or development of symbiont in host ; GO:0044412'. See also 'biological process involved in interaction with host ; GO:0051701. GO:0044114