Question

Life cycle of a rhizopus

Answer 1

Answer:

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Explanation:

Rhizopus is a genus of common saprophytic fungi on plants and specialized parasites on animals. They are found in a wide variety of organic substances , including "mature fruits and vegetables",[2] 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.[3] This widespread genus includes at least eight species.[4][5]

Rhizopus

Structure of Rhizopus spp.-english.JPG

Schematic diagram of Rhizopus spp.

Scientific classification

Kingdom:

Fungi

Division:

Zygomycota

Class:

Mucoromycotina

Order:

Mucorales

Family:

Mucoraceae

Genus:

Rhizopus

Ehrenb. (1820)

Type species

Rhizopus nigricans

Ehrenb. (1820)

Synonyms[1]

Crinofera Nieuwl. (1916)

Pilophora Wallr. (1833)

Rhizopus 400x magnification

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, sporangiospores are produced inside a spherical structure, the sporangium. Sporangia are supported by a large apophysate columella atop a long stalk, the sporangiophore. Sporangiophores arise among distinctive, root-like rhizoids. In sexual reproduction, a dark zygospore is produced at the point where two compatible mycelia fuse. Upon germination, a zygospore produces colonies that are genetically different from either parent......

R. microsporus var. oligosporus is used to make tempeh, a fermented food derived from soybeans.

R. oryzae is used in the production of alcoholic beverages in parts of Asia and Africa.

Rhizopus stolonifer (black bread mold) causes fruit rot on strawberry, tomato, and sweet potato and used in commercial production of fumaric acid and cortisone.

Various species, including R. stolonifer, may cause soft rot in sweet potatoes and Narcissus.

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