Conversion of menthyl acetate or neomenthyl acetate into menthol or neomenthol by cell suspension cultures of Mentha canadensis and Mentha piperita

1993 ◽  
Vol 41 (3) ◽  
pp. 517-520 ◽  
Author(s):  
Ute. Werrmann ◽  
Dietrich. Knorr
Keyword(s):  
Cell Suspension ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Mentha Piperita

Isolation and Characterization of Flavonol Converting Enzymes from Mentha piperita Plants and from Mentha arvensis Cell Suspension Cultures

1979 ◽  
Vol 34 (3-4) ◽  
pp. 200-209 ◽  
Author(s):  
Gudrun Frey-Schröder ◽  
Wolfgang Barz
Keyword(s):  
Cell Suspension ◽  
Oxidase Activity ◽  
Enzyme Reaction ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Mentha Piperita ◽  
Mentha Arvensis ◽  
Iaa Oxidase ◽  
Isolation And Characterization ◽  
Group I

Abstract Peroxidases from several plants, including horseradish peroxidase, were capable of converting flavonols to the corresponding 2,3-dihydroxyflavanones in presence of H2O2 . Contrastingly, protein extracts from Mentha piperita plants and Mentha arvensis cell suspension cultures perform ed the same enzymatic step in absence of H2O2 , but only with quercetin, not with kaempferol. H2O2-independent, quercetin converting enzymes were isolated and purified from these extracts, and they could be classified in two groups according to the extent of stimulation of the enzyme reaction by H2O2 . Enzymes from group I were stimulated by exogenous H2O2 , and they resembled horse­ radish peroxidase in several aspects. They possessed IAA oxidase activity, but quercetin was the preferred substrate. Enzymes from group II from the plants appeared to be a distinctly different set of enzymes. They were not stimulated by H2O2 , but required molecular oxygen and converted only 3,3′,4′-trihydroxyflavones under aerobic conditions. Also, they showed no Soret-bands and possessed no IAA oxidase activity. These proteins appear to be a new class of enzymes participating in the first step of flavonol degradation in plants.

The effects of jasmonic acid and methyl jasmonate on rosmarinic acid production in Mentha × piperita cell suspension cultures

2011 ◽  
Vol 108 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Justyna Krzyzanowska ◽  
Anna Czubacka ◽  
Lukasz Pecio ◽  
Marcin Przybys ◽  
Teresa Doroszewska ◽  
...  
Keyword(s):  
Jasmonic Acid ◽  
Methyl Jasmonate ◽  
Cell Suspension ◽  
Rosmarinic Acid ◽  
Acid Production ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Mentha Piperita

Quantitative analysis of hinokiol from cell suspension cultures of Cephalotaxus fortunei

2011 ◽  
Vol 29 (6) ◽  
pp. 567-570
Author(s):  
Xiaohui XU ◽  
Wei ZHANG ◽  
Changhong YAO ◽  
Xupeng CAO ◽  
Song XUE
Keyword(s):  
Quantitative Analysis ◽  
Cell Suspension ◽  
Cell Suspension Cultures ◽  
Suspension Cultures
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