Regulation of aleurone development in cereal grains.

Hormonal Regulation of Gene Expression m the Aleurone Layers of Cereal Grains

Patterns of starchy endosperm acidification and protease gene expression in wheat grains following germination

Cereal aleurone responses to gibberellic acid (GA3) include activation of synthesis of hydrolytic enzymes and acidification of the external medium. We have studied the effect of the pH of the incubation medium on the response of wheat (Triticum aestivum) aleurone cells to GA3. De-embryonated half grains show the capacity for GA3-activated medium acidification when incubation is carried out at p...

Aleurone Cell Development

The periphery of the endosperm of many plant species forms an epidermis-like layer called the aleurone. During germination, the aleurone performs an important digestive function, secreting hydrolases to break down the starch and proteins stored in the starchy endosperm cells. Several features of cereal aleurone cells make them an attractive system for studying fundamental questions of cell fate...

Hormonal signalling in cereal aleurone Journal of Experimental Botany

The cereal aleurone is an excellent model system for hormonal signalling in plants. When treated with gibberellins (GAs), cereal aleurone layers and aleurone protoplasts initiate signalling cascades that result in the synthesis and secretion of hydrolytic enzymes, most notably a-amylases. Abscisic acid (ABA) antagonizes the effects of GA and stimulates the production of ABA-up-regulated protein...

Identification of Dof proteins with implication in the gibberellin-regulated expression of a peptidase gene following the germination of rice grains.

Type III carboxypeptidase (CPD3) is one of the hydrolytic enzymes whose expression is up-regulated by gibberellins (GA) in the aleurones of germinated cereal grains. A number of pyrimidine boxes and a sequence resembling the gibberellic acid response element (GARE) are observed in the region upstream of the transcription initiation site of the CPD3 gene, showing a characteristic of cereal GA-re...