Abstract
The sequence in which a variety of enzymes and metabolites are affected by gibberellic acid after application of the hormone to aleurone layers of half seeds of barley (Hordeum vulgare var. Betzes) and half seeds of wheat (Triticum aestivum var. Gensee) was investigated. With barley aleurone layers the first hormonal effect observed was the increased secretion of soluble carbohydrate, some of which appears to be a glucan containing some β-1,3 linkages. This was followed by increased oxygen consumption and increased secretion of ATPase, GTPase, phytase, phosphomonoesterase, phosphodiesterase, inorganic phosphate, carbohydrates other than amylase, peroxidase and amylase. Similar sequential effects were seen in wheat half seeds. Increased activity of alcohol dehydrogenase in barley seeds was elicited by the hormone but there was no effect on glucose-6-phosphate isomerase.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Chrispeels M. J., Varner J. E. Gibberellic Acid-enhanced synthesis and release of alpha-amylase and ribonuclease by isolated barley and aleurone layers. Plant Physiol. 1967 Mar;42(3):398–406. doi: 10.1104/pp.42.3.398. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Coombe B. G., Cohen D., Paleg L. G. Barley endosperm bioassay for gibberellins. I. Parameters of the response system. Plant Physiol. 1967 Jan;42(1):105–112. doi: 10.1104/pp.42.1.105. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jacobsen J. V., Varner J. E. Gibberellic Acid-induced synthesis of protease by isolated aleurone layers of barley. Plant Physiol. 1967 Nov;42(11):1596–1600. doi: 10.1104/pp.42.11.1596. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Momotani Y., Kato J. Isozymes of alpha-Amylase Induced by Gibberellic Acid in Embryo-less Grains of Barley. Plant Physiol. 1966 Oct;41(8):1395–1396. doi: 10.1104/pp.41.8.1395. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pollard C. J., Singh B. N. Early effects of gibberellic acid on barley aleurone layers. Biochem Biophys Res Commun. 1968 Oct 24;33(2):321–326. doi: 10.1016/0006-291x(68)90787-0. [DOI] [PubMed] [Google Scholar]