Brassinolide
Encyclopedia
Brassinolide is a plant hormone
. The first isolated brassinosteroid
, it was discovered when it was shown that pollen from rapeseed
(Brassica napus) could promote stem elongation and cell division. The biologically active component was isolated and named brassinolide.
Plant hormone
Plant hormones are chemicals that regulate plant growth, which, in the UK, are termed 'plant growth substances'. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted cells locally and, when moved...
. The first isolated brassinosteroid
Brassinosteroid
Brassinosteroids are a class of polyhydroxysteroids that have been recognized as a sixth class ofplant hormones. These were first explored nearly forty years ago when Mitchell et al. reported promotion in stem elongation and cell division by the treatment of organic extracts of rapeseed pollen...
, it was discovered when it was shown that pollen from rapeseed
Rapeseed
Rapeseed , also known as rape, oilseed rape, rapa, rappi, rapaseed is a bright yellow flowering member of the family Brassicaceae...
(Brassica napus) could promote stem elongation and cell division. The biologically active component was isolated and named brassinolide.