TITLE

A Sex Pheromone, Protoplast Release-inducing Protein (PR-IP) Inducer, Induces Sexual Cell Division and Production of PR-IP in Closterium

AUTHOR(S)
Tsuchikane, Yuki; Fujii, Tadashi; Ito, Motomi; Sekimoto, Hiroyuki
PUB. DATE
September 2005
SOURCE
Plant & Cell Physiology;Sep2005, Vol. 46 Issue 9, p1472
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The sex pheromone protoplast release-inducing protein (PR-IP) inducer and a sexual cell division-inducing pheromone-minus (SCD-IP-minus) that mediates the sexual reproduction of the heterothallic Closterium peracerosum-strigosum-littorale (C. psl) complex were investigated in this study. Recombinant PR-IP inducer produced by yeast cells was prepared and assayed for production of PR-IP and induction of SCD. Both biological activities were observed after treating mating-type plus (mt+) cells with the recombinant pheromone. SCD was induced by exposure to a lower concentration of the same pheromone and by a shorter treatment period with the pheromone than was production of PR-IP. This indicates that the previously characterized PR-IP inducer has both PR-IP-inducing and SCD-inducing activities with mt+ cells, although the inducing mechanisms of the two pheromones differ.
ACCESSION #
20128595

 

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