Register      Login
Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
RESEARCH ARTICLE

Dna-Synthesis Studied in Later Growth Cycles and in Zoosporangium Development of Allomyces macrogynus

J Youatt

Australian Journal of Botany 36(3) 321 - 329
Published: 1988

Abstract

Synchrony of duplication cycles in Allomyces macrogynus was maintained through five cycles to the end of vegetative growth. In a culture in which hyphal emergence was inhibited the fourth cycle was abnormal. No DNA synthesis occurred before septation when zoosporangia developed in culture medium. When organisms were induced to make sporangia by transfer to water there was a small apparent increase in DNA prior to but not after septation. The unavoidable extraction of wall glycopeptide poses some problems in nucleic acid assays. Partial inhibition by 10µM benomyl allowed continued growth with large rhizoids at every apex. Partial inhibition by mitomycin allowed continued growth without any further morphological differentiation.

https://doi.org/10.1071/BT9880321

© CSIRO 1988

Committee on Publication Ethics


Rent Article (via Deepdyve) Export Citation Cited By (2) Get Permission

View Dimensions