Aleurone layer | definition of aleurone layer by Medical dictionary
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aleurone layer a layer of cells just below the TESTA of seeds such as barley. Aleurone releases large quantities of hydrolytic enzymes (AMYLASES, PROTEASES and NUCLEASES) for digestion of the ENDOSPERM. Thus food material is made available in soluble form for embryo growth. Enzyme release is brought on by the plant hormone GIBBERELLIN, which is released by the embryo when the seed is soaked in water prior to germination.
References in periodicals archive
Cross-pollination from Purendo-38 to recipient plants of AC Navigator were identified by the expression of a light-blue pigment in the aleurone layer
of shriveled [F.
Abscisic acid and gibberellic acid-regulated responses of embryos and aleurone layers
isolated from dormant find nondormant barley grains.
An aleurone layer
also surrounded the embryo except in the region where the embryo was attached to the nucellus (Fig.
For the extraction of bran from wheat and maize, the seeds were ground in grinders, after grinding the hull and aleurone layers
Regulated expression of three alcohol dehydrogenase genes in barley aleurone layers
It has also been shown that the NO donor's sodium nitroprusside (SNP) and S-nitroso-N-acetylpenicillamine delayed GA-induced programmed cell death in Hordeum vulgare aleurone layers
(Beligni et al.