Hormonal control of triterpenols synthesis in Euphorbia characias calli

• Tipo: Artigo em Revista Científica Internacional
• Data: 1992

Autores

FERNANDESFERREIRA, M (Autor) Outra; NOVAIS, JM (Autor) Outra; PAIS, MSS (Autor) Outra

Revista

Título: Bioresource Technology

Vol. 39

Páginas: 31-37

ISSN: 0960-8524

Editora: Elsevier

Indexação

ISI Web of Knowledge - 6 Citações

Scopus - 6 Citações

Classificação Científica

FOS: Ciências agrárias > Biotecnologia agrária e alimentar

Outras Informações

ID Authenticus: P-00H-70R

DOI: 10.1016/0960-8524(92)90053-z

Abstract (EN): Calli of Euphorbia characias grown under different auxin and cytokinin supplementations revealed significant differences in the amounts of total triterpenols produced. Although the four main triterpenols, campesterol, beta-sitosterol, DELTA-5-avenasterol and alpha-amyrin, were produced with all hormonal supplementations used, wide differences in the levels of each triterpenol were recorded depending on either the type or the concentration of auxins and cytokinins tested. The increase of the ratio DELTA-5-avenasterol/beta-sitosterol with the increase of auxin and cytokinin concentrations suggests an inhibitory effect of these hormones on the conversion of DELTA-5-avenasterol to beta-sitosterol. Possible effects of auxins and cytokinins on the enzymes of the triterpenols biosynthetic pathway are discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7