Influence of Oxygen on Tip Growth of Pilobolus crystallinus Hyphae
- 1 March 1985
- Vol. 77 (2) , 238-242
- https://doi.org/10.2307/3793073
Abstract
Radial expansion of P. crystallinus colonies was inhibited by O2. The upper limit of pO2 [partial pressure of O2] for radial growth was estimated at < 30 mm Hg. At partial pressures of O2 > 30 mm Hg the fungus only grew beneath the substrate surface and under an O2 atmosphere (pO2 = 760 mm Hg) growth ceased until respiration created an area of low pO2 (< 30 mm Hg) at the hyphal tips. Growth as measured by dry weight changes, however, was favored by aeration. O2 inhibits extension of hyphal tips which in turn effects vertical organization of the colony, but this fungus probably is not microaerophilic.This publication has 2 references indexed in Scilit:
- Stimulatory effect of dihydroxyphenyl compounds on the aerotolerance of Spirillum volutans and Campylobacter fetus subspecies jejuniApplied and Environmental Microbiology, 1976
- Coprogen, A New Growth Factor Present in Dung, Required by Pilobolus SpeciesMycologia, 1953