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ERECTA gene and leaf cellular development

<i>ERECTA</i> gene and leaf cellular development
<i>ERECTA</i> gene and leaf cellular development

The ERECTA gene plays a role in the balance between epidermal cell expansion and division in leaves. Tisné et al. perform spatial and temporal analyses of these processes in successive developing leaves of Arabidopsis thaliana in ERECTA and erecta lines in comparison with LER and Ler lines, and find that loss of ERECTA function leads to a low expansion rate coupled with an increase in the duration of cell expansion. The mutation eliminates the tip-to-base cellular gradient generally observed in the leaf epidermis and also flattens the heteroblastic changes in epidermal cell area and number within a rosette.

Written by Annals of Botany Office

The Annals of Botany Office is based at the University of Oxford.

Elderflower champagne fresh from the hedgerows

Early summer and the hedgerows: elderflower champagne

Turnover of foliar N absorbed at different times

Turnover of foliar N absorbed at different times