High impact information on Crepis

• The mechanism by which the fatty acid acetylenase of Crepis alpina catalyzes crepenynic acid ((9Z)-octadeca-9-en-12-ynoic acid) production from linoleic acid has been probed through the use of kinetic isotope effect (KIE) measurements [1].
• The Crepis palaestina cDNA Cpal2 encodes a delta 12-epoxygenase that can catalyse the synthesis of 12,13-epoxy-cis-9-octadecenoic acid (18:1E) from linoleic acid (18:2) [2].
• Arabidopsis thaliana (L.) Heynh. expressing the Crepis palaestina (L.) linoleic acid delta12-epoxygenase in its developing seeds typically accumulates low levels of vernolic acid (12,13-epoxy-octadec-cis-9-enoic acid) in comparison to levels found in seeds of the native C. palaestina [3].
• The evolutionarily closely related Delta12 epoxygenase from Crepis palaestina had only weak desaturase activity but could also produce 9(Z),12(E)-octadecadienoate from oleate [4].
• From the roots of Crepis mollis, one new and two known guaianolides were isolated together with eight known guaianolide glycosides, one known germacranolide glycoside and two known phenylpropanoids [5].

Biological context of Crepis

• Purine receptor agonists adenosine, cyclohexyladenosine, phenylisopropyladenosine, dimethylaminopurine riboside, ATP, and ADP reduced the level of chromosome aberrations and the number of micronuclei induced by ethylmethane sulfonate and cyclophosphamide in plants (Crepis capillaris) and mice [6].

Associations of Crepis with chemical compounds

• The results indicate that PDAT plays a major role in removing ricinoleic acid and vernolic acid from phospholipids in Ricinus communis and Crepis palaestina seeds, respectively [7].
• The methanol extract of sub-aerial parts of Crepis bocconi P [8].

References