Study on Micropropagation of Coleus Blumei Benth. through Apical Meristem Culture
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Hydroxyphenylpyruvate Reductase from Cell Suspension Cultures of Coleus blumei Benth
Cell suspension cultures o f Coleus blumei Benth. producing high amounts o f rosmarinic acid were used to study the biosynthetic pathway o f this caffeic acid ester. One o f the involved en zymes, the hydroxyphenylpyruvate reductase (HPPR), is characterized in this paper. HPPR catalyzes the NAD(P)H dependent reduction o f /^-hydroxyphenylpyruvate to /»-hydroxyphenyllactate. The enzyme develope...
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Agrobacteria mediated Coleus blumei tumour tissues were cultured in vitro on MS medium. Sixteen diversified transformed callus cultures were maintained for several years in the absence of plant growth regulators and antibiotics without affecting the growth rate. Rosmarinic acid was detected spectrophotometrically in all tissue lines but in different quantities. The highest rosmarinic acid accum...
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The chloroform extract of the air-dried leaves of Coleus blumei afforded a mixture of diastereomers of a new abietane type diterpene whose structures were elucidated by extensive one and two dimensional (ID, 2D) NMR and mass spectrometry. Acetylation of the mixture afforded a single compound. Antimicrobial tests on the diterpene indicate that it is active against Bacillus subtilis, Pseudomonas ...
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The development of P-protein (slime) in the phloem of Coleus stem apices has been studied electron microscopically using material fixed in glutaraldehyde followed by osmium tetroxide. In phloem parenchyma cells the earliest-appearing groups of tubular P-protein commonly are seen in close association with clusters of ' spiny' vesicles similar to those reported in Phaseolus phloem (Newcomb, 1967)...
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5. HEATH, 0. V. S. AND DAPHNE VINCE. 1962. Some nonphotosynthetic effects of light on higher plants with special reference to wavelength. Biological Receptor Systems, Symp. Soc. Exptl. Biol. XVI: 110-37. 6. HENDRICKS, S. B. AND H. A. BORTHWICK. 1959. Photocontrol of plant development by simultaneous excitation of two interconvertible pigments. Proc. Nat. Acad. Sci. 45: 344-49. 7. HENDRICKS, S. ...
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ژورنال
عنوان ژورنال: JOJ Horticulture & Arboriculture
سال: 2019
ISSN: 2641-8215
DOI: 10.19080/jojha.2018.02.555588