Journal article

Identification of pronp1, a tobacco profilin gene activated in tip-growing cells

I Swoboda, PL Bhalla, HL Xu, Y Zhang, I Mittermann, R Valenta, MB Singh

PLANT MOLECULAR BIOLOGY | KLUWER ACADEMIC PUBL | Published : 2001

Abstract

In plant cells, several cellular processes depend on rapid reorganization of a dynamic network of actin cytoskeletal elements in response to internal and environmental stimuli. Profilins, ubiqitous eukaryotic actin monomer-binding proteins with highly conserved three-dimensional structures, regulate the actin cytoskeleton and are considered to link the microfilament system with signal transduction pathways. Plant profilins have been grouped into two distinct classes, gametophytic (pollen-specific) and sporophytic. Here we report the isolation of a profilin gene that seems to be activated during tip growth of specialized cells of gametophytic as well as sporophytic origin. Identification of a..

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