Induction of leaf primordia by the cell wall protein expansion

Fleming, Andrew J; McQueen-Mason, Simon J; Mandel, Therese; Kuhlemeier, Cris (1997). Induction of leaf primordia by the cell wall protein expansion. Science, 276(5317), pp. 1415-1418. American Association for the Advancement of Science 10.1126/science.276.5317.1415

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Expansins are extracellular proteins that increase plant cell wall extensibility in vitro. Beads loaded with purified expansin induced bulging on the leaf-generating organ, the apical meristem, of tomato plants. Some of these bulges underwent morphogenesis to produce leaflike structures, resulting in a reversal of the direction of phyllotaxis. Thus, expansin can induce tissue expansion in vivo, and localized control of tissue expansion may be sufficient to induce leaf formation. These results suggest a role for biophysical forces in the regulation of plant development.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Development
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Mandel, Therese and Kuhlemeier, Cris

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0036-8075

Publisher:

American Association for the Advancement of Science

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

06 Jul 2017 09:01

Last Modified:

06 Jul 2017 09:01

Publisher DOI:

10.1126/science.276.5317.1415

URI:

https://boris.unibe.ch/id/eprint/97859

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