Purification of a naturally produced, low molecular weight organic factor that reversibly blocks encystment of Blastocladiella emersonii zoospores.

Journal Article (Journal Article)

The water mold Blastocladiella emersonii releases zoospore maintenance factor into the medium during zoosporogenesis. Extracellular factor mediates a reversible developmental block that maintains the motile, cell wall-less zoospore phenotype. A method for purifying the factor is reported that results in 75-120% recovery of biological activity. Analyses of purified factor by thin layer chromatography support the conclusion that factor activity resides in a single organic, low molecular weight molecular species. Other data (Gottschalk, W.K. & Sonneborn, D. R. (1985) J. Biol. Chem. 260, 6592-6599) independently support this conclusion and, in addition, support the conclusion that biological activity resides in an SH-containing cyclic ribotide.

Full Text

Duke Authors

Cited Authors

  • Gottschalk, WK; Sonneborn, DR

Published Date

  • June 10, 1985

Published In

Volume / Issue

  • 260 / 11

Start / End Page

  • 6588 - 6591

PubMed ID

  • 3997838

International Standard Serial Number (ISSN)

  • 0021-9258


  • eng

Conference Location

  • United States