Abstract
Expansins are a class of proteins identified by their ability to induce the extension of isolated plant cell walls. Expansins are encoded by an extensive multigene family in higher plants, several members of which have been shown to be expressed in a tissue-specific manner. Besides playing an apparently key role in wall expansion, and hence in cell growth, expansins have been implicated in an increasing number of processes during plant growth and development. These include: leaf organogenesis, fruit softening, and wall disassembly. A second class of closely related proteins (referred to as beta-expansins) has ken identified. Other recent advances in expansin research include the recovery of transgenic plants with altered level of expansins, and the production of recombinant expansins in heterologous expression systems.
Original language | English |
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Pages (from-to) | 19-25 |
Number of pages | 7 |
Journal | Plant biology |
Volume | 1 |
Issue number | 1 |
Publication status | Published - Jan 1999 |
Keywords
- expansin
- cell wall
- plant cell enlargement
- plant growth
- CELL-WALL EXTENSION
- GROWING CUCUMBER HYPOCOTYLS
- IN-VITRO
- ENLARGEMENT
- EXPRESSION
- PROTEINS
- GENE
- COLEOPTILES
- RELAXATION
- POLLEN