. Bacteriology and mycology of foods. Food. RHIZOPUS—MUCOR-OIDIUM 205 lactis (oospora lactis) is often classified with yeasts and has then been given the name Mycoderma lactis. The molds are set apart from bac- teria and yeasts in that they are multicellular. The following varieties may be met with in a microbiological examination of foods. Rhizopus. The most common member of this group is Rhizopus nigricans. It is the common black bread mold and may be responsible for other food spoilage. Stevens (1917) has shown that this fungus causes the rot of strawberries during shipment. This work verif
. Bacteriology and mycology of foods. Food. RHIZOPUS—MUCOR-OIDIUM 205 lactis (oospora lactis) is often classified with yeasts and has then been given the name Mycoderma lactis. The molds are set apart from bac- teria and yeasts in that they are multicellular. The following varieties may be met with in a microbiological examination of foods. Rhizopus. The most common member of this group is Rhizopus nigricans. It is the common black bread mold and may be responsible for other food spoilage. Stevens (1917) has shown that this fungus causes the rot of strawberries during shipment. This work verifies. Pig. 49.—Oidimn Lactis. (After Thorn.*) o, 5, dichotomous branching of growing liyphae; c, d, g, simple chains of oidia breaking through substratum at dotted hne s~y, dotted portions submerged; e, /, chains of oidia from a branching outgrowth of a submerged cell; A., branching chain of oidia, k, ly m, n, o, p, s, types of gernoination of oidia under varying conditions; t, diagram of a portion of a colony showing habit of Oidium lochs as seen m culture media. some done by other investigators on the same subject. Schneider- Orelli (1911) have shown that R, nigricans is important in bringing about the decay of over-ripe pears during storage. Mucor. The mucors have the same structure as Rhizopus molds. They are separated, however, by the fact that the sporangiophores spring from the stolons singly. Oidium. The sour milk mold Oidium lactis is a common variety of this genus. The most of this mold is below the surface of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tanner, Fred Wilbur, 1888-1957. New York, John Wiley & Sons, Inc. ; [etc. ,etc. ]
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