Hormones, Signals and Target Cells in Plant Development

Hormones, Signals and Target Cells in Plant Development

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Meristematic cells in plants become the many different types of cells found in a mature plant. This is achieved by a selective response to chemical signals both from neighbouring cells and distant tissues. It is these responses that shape the plant, its time of flowering, the sex of its flowers, its length of survival or progress to senescence and death. How do plants achieve this? This treatise addresses this question using well-chosen examples to illustrate the concept of target cells. The authors discuss how each cell has the ability to discriminate between different chemical signals, determining which it will respond to and which it will ignore. The regulation of gene expression through signal perception and signal transduction is at the core of this selectivity and the Target Cell concept. This volume will serve as a valuable reference for all researchers working in the field of plant developmental biology.Peptides as signals in plants Systemin Although well established in animal biology, the discovery of lower molecular mass proteins (normally referred to as peptides) that contain ... (1991) then used standard chromatogra- phy approaches to purify the mobile signal from tomato leaves and determined that systemin was an 18 amino acid peptide ... Using [14C]Ala-labelled systemin, researchers showed that the peptide moved from the wound site through the phloem to other plant parts.

Title:Hormones, Signals and Target Cells in Plant Development
Author: Daphne J. Osborne, Michael T. McManus
Publisher:Cambridge University Press - 2005-04-11

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