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- W2012504568 abstract "The organization of actin microfilaments was studied by immunofluorescence in protoplasts isolated from sunflower hypocotyls and cultured in an agarose matrix. Removal of the cell wall completely disrupted the actin cytoskeleton, which became progressively reorganized into cortical microfilament arrays and actin cables during protoplast culture. Treatment of protoplasts with arginine-glycine-aspartic acid (Arg-Gly-Asp) motif-containing peptides, to inhibit putative cell contacts with the agarose matrix, strongly affected this repair process: microfilament elongation and cable formation were inhibited and the connectivity between the cortical network and the perinuclear basket was lost. Furthermore, embryoid formation induced by agarose embedding was reduced. Similar effects were observed with a short treatment with latrunculin B, known to disrupt actin microfilaments. These results indicate that the actin network is involved in the signalling process that leads to polarity acquisition and embryoid determination in agarose-embedded protoplasts." @default.
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- W2012504568 date "2004-09-01" @default.
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- W2012504568 title "The actin cytoskeleton is involved in signalling protoplast embryogenesis induced by agarose embedding" @default.
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