First report of Coleus blumei viroid 1 in commercial Coleus blumei in the United States
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Diastereomeric diterpenes from Coleus blumei.
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 ...
متن کاملRegulation of Auxin Levels in Coleus blumei by Ethylene.
An investigation of the effects of ethylene pretreatment on several facets of auxin metabolism in Coleus blumei Benth "Scarlet Rainbow" revealed a number of changes presumably induced by the gas. Transport of indoleacetic acid-1-(14)C in excised segments of the uppermost internode was inhibited by about 50%. Decarboxylation of indoleacetic acid-1-(14)C by enzyme breis was not affected by the pr...
متن کاملPotential of Different Coleus blumei Tissues for Rosmarinic Acid Production.
Rosmarinic acid is one of the main active components of Coleus blumei and is known to have numerous health benefits. The pharmacological significance of rosmarinic acid and its production through in vitro culture has been the subject of numerous studies. Here, the ability of different tissues to accumulate rosmarinic acid and sustainability in production over long cultivation have been tested. ...
متن کاملPrimary and secondary structure of a new viroid 'species' (CbVd 1) present in the Coleus blumei cultivar 'Bienvenue'
The detection of a viroid in Coleus blumei species in Brazil (1) has prompted us to search for viroids in C. blumei cultivars (cvs) commercially propagated by cuttings for more than 50 years in Germany. 'Return' PAGE (2) of nucleic acid extracts from the cv 'Bienvenue' revealed a band of circular viroid-like RNA molecules. Northern blot analysis (3) with radioactive probes specific for viroids ...
متن کاملHydroxyphenylpyruvate 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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ژورنال
عنوان ژورنال: Plant Disease
سال: 2021
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-05-21-0917-pdn