The Isolation, Growth, and Metabolism of Blastocladia in Pure Culture

Biochemical Aspects of Morphogenesis in Algae and Fungi

“…Although no effort seems to have been made to survey the effect of CO2 on morphogenesis of algae and fungi, there exist numerous examples, a few of which will be detailed in subsequent sections. Additionally, CO2 has been shown to induce development of resistant sporangia in Blasto cladia pringsheimii (46), spherules in Coccidioides immitis (100), promote germination of chlamydospores of Ustilago (129) and conidia of Aspergillus niger (171), inhibit sporulation of several fungi, induding Choanephora cu curbitarum (2) and Schizophylum commune (126), and interfere with cell division in Chlorella (162) and with gametogenesis in Chlamydomonas (164).…”

Photoperiod Control of Winter Diapause in the Fresh-Water Crustacean, Daphnia

“…Examples such as the water-molds (Emerson, 1954;Emerson and Cantino, 1948), protozoa Strickland, 1938, 1939) hydrozoa (Loomis, 1957(Loomis, , 1959(Loomis, , 1961Braverman, 1962) and rotifers (Gilbert, 1963) are analogous in that the stimulus responsible for the shift is related to the density of the culture. In several instances a volatile metabolite has been implicated, and in recent studies elevated tensions of CO2 have been effective (Loomis, 1957(Loomis, , 1961Braverman, 1962;Emerson and Cantino, 1948), possibly in combination with trace amounts of the Krebs cycle acids in the medium (Loomis, 1964). Other studies have demonstrated the effectiveness of alpha-ketoglutarate as an inducer of sexuality in molds and coelenterates (Braverman, 1962;Knight, 1957, 1963).…”

Morphogenesis of Schizophyllum commune. II. Effect of Microaerobic Growth

“…Carbon dioxide can effect morphogenesis in the fungi (Emerson and Cantino, 1948;Bartnicki-Garcia and Nickerson, 1962a), but although 5% CO2 inhibits fruiting in S. commune, it has no effect on growth and clamp connection formation in dikaryons (Niederpruem, 1963). Consequently, the use of 5% CO2 in these experiments would not appear to introduce any side effects that could influence the conclusions.…”