21. It produces yellow-pigmented hyphae and microsclerotia, while producing few chlamydospores and with sparse resting mycelium. 22. Chlamydospores are usually dark-coloured, spherical, and have a smooth ( non-ornamented ) surface.23. The chlamydospores , as the resting spores, survive the longest in the soils, usually under cold conditions. 24. The fungus also produces resting spores ( chlamydospores ) that can persist in soil for a long period of time. 25. In the presence of nutrients, chlamydospores germinate by producing germ tubes that continue to grow and form mycelial masses. 26. In addition to the chlamydospore , " P . cactorum " also produces another asexual spore called a sporangia. 27. Other Ascochyta blight pathogens have thick walled chlamydospores , which can survive for up to a few years in the soil. 28. As the fruit bodies mature, the hyphae that held the chlamydospores fuse and form the peridium of the fruit body. 29. Sporangia and chlamydospores form on the mycelia of the infected root, and the cycle of infection continues to the next plant. 30. However, chlamydospores produced in papaya juice at lower concentrations or in other kinds of fruit juice are mostly thin-walled.
