Rhizopus Rhizopus Rhizopus is a genus of common saprophytic fungi on plants and specialized parasites on animals. They are found on a wide variety of organic substrates, including "mature fruits and vegetables", jellies, syrups, leather, bread, peanuts, and tobacco. They are multicellular. Some "Rhizopus" species are opportunistic agents of human zygomycosis (fungal infection) and can be fatal. "Rhizopus" infections may also be a complication of diabetic ketoacidosis. This widespread genus includes at least eight species. "Rhizopus" species grow as filamentous, branching hyphae that generally lack cross-walls (i.e., they are coenocytic). They reproduce by forming asexual and sexual spores. In asexual reproduction,
Peronospora sparsa watermolds therefore cool, wet, humid conditions are what they prefer. "Peronospora sparsa is also an obligate biotroph. This means they require a living host to survive and reproduce. Obligate biotrophs are also commonly called obligate parasites because their existence is detrimental to the host." Downy mildew spread mostly by conidia, which are asexual spores. Conidia are often carried by wind or rain onto the leaves, stem, or berries. From there, they develop secondary infections which means this pathogen has a polycyclic life cycle. After the secondary infection the disease will continue to spread very fast if uninterrupted. The best control