Effect of brassinosteroids on growth and proton extrusion in the algaChlorella vulgarisBeijerinck (Chlorophyceae)

✍ Scribed by A. Bajguz; R. Czerpak

• Book ID: 104660317
• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 302 KB
• Volume: 15
• Category: Article
• ISSN: 0721-7595
• DOI: 10.1007/bf00198931

✦ Synopsis

Brassinolide, as a plant hormone, promotes growth of a number of plant species. Similar effects are induced by its epimer 24-epibrassinolide. In this paper we discuss the effects of brassinosteroids on the growth and proton extrusion in the green alga Chlorella vulgaris (Chlorophyceae). At concentrations between 10 -15 and 10 -8 M, brassinolide and 24-epibrassinolide induce a significant stimulation of growth and H § extrusion. The growth was associated with an increase in the capability of algal cells to acidify the medium, where brassinolide is biologically more active than 24-epibrassinolide.