Observations on Asexual and Sexual Reproductive Structures of the Choanephoraceae

The Merosporangiferous Mucorales

“…The Choanephoraceae 8 includes a single genus, Choanephora, with several species (Hesseltine, 1953;Poitras, 1955;Hesseltine and C. R. Benjamin, 1957) that may be weakly parasitic on higher plants although they arso are saprobic and occur in soil. Vegetatively, Choanephora resembles members of the Mucoraceae.…”

Feed Supplements Production, Microbiological Production of Beta-Carotene in Shaken Flasks

“…The results of these experiments utilizing the basal medium in w'hich all three adjuncts were incorporated are presented in Table II. Recent work by Poitras (6) indicates that the slight morphological differences betw'een Blakeslea and Choanephora may not be of generic significance. Thus the data presented in Table II (under Interspecifically Mated) may not represent the results of true cross-generic mating but only that of interspecific mating.…”

“…Following an incubation period of 6 days, the flasks were steamed 10 to 15 minutes to prevent enzymatic decomposition of the carotene; the solids were removed by filtration and dried at 50°t o 55°C. in a vacuum oven.…”