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Brassinosteroid

Definition of the noun Brassinosteroid

What does Brassinosteroid mean as a name of something?

noun

  1. [steroid] Any of a family of steroidal plant hormones produced by members of the genus Brassica; the brassins

Explanation

Brassinosteroid: Brassinosteroids are a class of polyhydroxysteroids that have been recognized as a sixth class of plant hormones. These were first explored nearly 40 years ago, when Mitchell et al. reported promotion in stem elongation and cell division by the treatment of organic extracts of rapeseed pollen. Brassinolide was the first isolated brassinosteroid in 1979, when pollen from Brassica napus was shown to promote stem elongation and cell divisions, and the biologically active molecule was isolated. The yield of brassinosteroids from 230 kg of Brassica napus pollen was only 10 mg. Since their discovery, over 70 BR compounds have been isolated from plants.

  • also known as 油菜素類固醇

Printed dictionaries and other books with definitions for Brassinosteroid

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Google previewApproaches to Plant Stress and their Management (2013)

by R.K. Gaur, Pradeep Sharma

Brassinosteroid Signaling Brassinosteroid is a recently discovered class of hormones that plays an important role in plant growth and development. Studies in Arabidopsis identified mutants in BR biosynthesis or receptor genes display dwarfism whereas gain-of-function mutants overexpressing BR biosynthetic genes such as DWF4 and DET2 results in increased growth (Vert et al. 2005). Initial hints for the role of calcium/calmodulin signaling in BR signaling came from studies of dwarf ...

Google previewThe Encyclopedia of Seeds (2006)

Science, Technology and Uses by J. Derek Bewley, Michael Black, Peter Halmer

Brassinosteroid Originally isolated from Brassica napus pollen, the brassinosteroid (BR) brassinolide (BL) was the first plant steroid to be shown to have hormonal properties, in that it can regulate stem elongation. Castasterone ( CS) is a brassinosteroid found in tobacco and tomato. Since then, BRs have been shown to exist throughout the plant kingdom in nearly all tissues analysed, being particularly abundant in pollen and immature seeds. BRs are essential for elongation in stems, ...

Google previewA Dictionary of Biology (2015)

by Elizabeth Martin, Robert Hine

brassin (brassinosteroid; BR) Any of a group of steroid derivatives that occur at very low concentrations in plant tissues and are potent *plant hormones. Brassins have been found in pollen, leaves, stems, and flowers from various species; the most active form is brassinolide (BL). Extracts behave in a manner similar to *auxins, for example stimulating elongation of hypocotyl and epicotyl tissue from ...

Google previewDictionary of Plant Breeding, Second Edition (2009)

by Rolf H. J. Schlegel

The crop growth rate is a specific plant growth analysis term denoting the absolute growth rate of mass per unit land phys agr growth regulator : Despite natural growth regulators, a synthetic compound that, when applied to a plant, promotes, inhibits, or otherwise modifies the growth of that plant phys >>> brassinosteroid >>> cytokinin >>> gibberellin growth stages (syn developmental stage): ...

Google previewPocket dictionary of biochemistry (2000)

by Peter Reuter

Brassinosteroid ••• brassinosteroid.

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Video about Brassinosteroid

Brassinosteroid Meaning

Video shows what brassinosteroid means. Any of a family of steroidal plant hormones produced by members of the genus Brassica, the brassins.

Scrabble value of B3R1A1S1S1I1N1O1S1T1E1R1O1I1D2

The value of this 15-letter word is 18 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

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