Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

The construction of multicellular organisms depends on stem cells-cells that can both regenerate and produce daughter cells that undergo differentiation. Here, we show that the gaseous messenger ethylene modulates cell division in the cells of the quiescent center, which act as a source of stem cells in the seedling root. The cells formed through these ethylene-induced divisions express quiescent center-specific genes and can repress differentiation of surrounding initial cells, showing that quiescence is not required for these cells to signal to adjacent stem cells. We propose that ethylene is part of a signaling pathway that modulates cell division in the quiescent center in the stem cell niche during the postembryonic development of the root system.

Original publication

DOI

10.1126/science.1143409

Type

Journal article

Journal

Science

Publication Date

27/07/2007

Volume

317

Pages

507 - 510

Keywords

Amino Acids, Cyclic, Arabidopsis, Arabidopsis Proteins, Cell Differentiation, Cell Division, Ethylenes, Gene Expression, Genes, Plant, Glycine, Indoleacetic Acids, Mutation, Naphthaleneacetic Acids, Plant Roots, Protein Kinases, Signal Transduction, Stem Cells