Rhizopus rot, a common disease of jackfruit flowers and on young fruit. Causing a soft, watery, brown spot that soon becomes covered in grey-brown, later black mould growth.
Morphology
Colonies very fast growing and more than 2 cm high, reddish grey-brown. Sporangiophores 1–3.5 cm tall, up to 34 µm thick, non-septate, pale brown. Sporangia borne singly at top of sporangiophore, mostly 100–200 µm diam., usually collapsing when mounted on a slide, white at first, becoming black, containing many sporangiospores. Sporangiospores irregular in shape (subglobose, oval, angular), brownish black, non-septate, (5–)7–12(–14) µm, striate.
