RRC ID 28701
Author Thompson CR, Kay RR.
Title The role of DIF-1 signaling in Dictyostelium development.
Journal Mol Cell
Abstract We have constructed a mutant blocked in the biosynthesis of DIF-1, a chlorinated signal molecule proposed to induce differentiation of both major prestalk cell types formed during Dictyostelium development. Surprisingly, the mutant still forms slugs retaining one prestalk cell type, the pstA cells, and can form mature stalk cells. However, the other major prestalk cell type, the pstO cells, is missing. Normal pstO cell differentiation and their patterning in the slug are restored by development on a uniform concentration of DIF-1. We conclude that pstO and pstA cells are in fact induced by separate signals and that DIF-1 is the pstO inducer. Positional information, in the form of DIF-1 gradients, is evidently not required for pstO cell induction.
Volume 6(6)
Pages 1509-14
Published 2000-12-1
DOI 10.1016/s1097-2765(00)00147-7
PII S1097-2765(00)00147-7
PMID 11163223
MeSH Animals Cell Differentiation / drug effects Dictyostelium / cytology Dictyostelium / enzymology Dictyostelium / genetics Dictyostelium / growth & development* Gene Deletion Gene Expression Regulation, Developmental Gene Targeting Genes, Reporter Hexanones / metabolism* Hexanones / pharmacology Histocytochemistry Methyltransferases / deficiency Methyltransferases / genetics Methyltransferases / metabolism Morphogenesis / drug effects RNA, Messenger / genetics RNA, Messenger / metabolism Signal Transduction* / drug effects
IF 15.584
Times Cited 130
WOS Category BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
Resource
Cellular slime molds G24676 S00070 S00242 S90271