More on PGRs 2009 - Pulsing Hormones When cultured material...

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Pulsing Hormones When cultured material is exposed to a substance for only a short period of time, it is frequently said to have been given a pulse of that substance or regulant. Sometimes a pulse of a growth regulator at a relatively high rate can be as effective as a lower concentration, which is present continuously.
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Somatic embrygenesis in potato
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Somatic embrygenesis in potato
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Other uses of pulsing PGRs Cut foliage Seed germination Rooting of cuttings Spraying for various reasons
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Other Growth Regulators (Hormones?)
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Brassinosteroids Brassinolide
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Discovery of Brassinosteroids Discovered as a growth stimulator from pollen extracted from rape plant ( Brassica napus L.) -> Mitchell et al. 1970 -> called substances Brassins Occur in Brassicaceae (mustards, cauliflowers, cabbages, turnips, Arabidopsis)
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Brassins induced stem elongation in beans: Mandava 1988
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Brassinolide and intermediates of the BL biosynthetic pathway restore normal growth to the cpd mutant — no sterioid CL, campesterol CT, cathasterone TE, teasterone DT, 3-dehydroteasterone TY, typhasterol CS, castasterone BL, brassinolide
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This note was uploaded on 07/23/2011 for the course HOS 6737c taught by Professor Moore during the Spring '09 term at University of Florida.

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More on PGRs 2009 - Pulsing Hormones When cultured material...

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