aleurone layer


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

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.
Mentioned in ?
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 were separated.
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.