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090 _aB-9895
245 1 0 _aEnhancement of alkaloid production in opium and California poppy by transactivation using heterologous regulatory factors
490 0 _vPlant Biotechnology Journal, 6(2), p.160-175, 2008
520 3 _aGenes encoding regulatory factors isolated from Arabidopsis , soybean and corn have been screened to identify those that modulate the expression of genes encoding for enzymes involved in the biosynthesis of morphinan alkaloids in opium poppy ( Papaver somniferum ) and benzophenanthridine alkaloids in California poppy ( Eschscholzia californica ). In opium poppy, the over-expression of selected regulatory factors increased the levels of PsCOR (codeinone reductase), Ps4 _O OMT ( S -adenosyl- L -methionine:3 _O -hydroxy- N -methylcoclaurine 4_O O ltransferase)and Ps6OMT [( R , S )-norcoclaurine 6- O -methyltransferase]transcripts by 10- to more than 100-fold. These transcriptional activations translated into an enhancement of alkaloid production in opium poppy of up to at least 10-fold. In California poppy, the transactivation effect of regulatory factor WRKY1 resulted in an increase of up to 60-fold in the level of EcCYP80B1 [( S )- N -methylcoclaurine 3 _O -hydroxylase]and EcBBE (berberine bridge enzyme)transcripts. As a result, the accumulations of selected alkaloid intermediates were enhanced up to 30-fold. The transactivation effects of other regulatory factors led to the accumulation of the same intermediates. These regulatory factors also led to the production of new alkaloids in California poppy callus culture.
650 1 4 _aCALIFORNIA POPPY
650 1 4 _aMORPHINAN ALKALOIDS
650 1 4 _aMORPHINE
650 1 4 _aOPIUM POPPY
650 1 4 _aTHEBAINE
650 1 4 _aTRANSCRIPTION FACTORS
700 1 2 _aApuya, N.R.
700 1 2 _aPark, J.H.
700 1 2 _aZhang, L.
700 1 2 _aAhyow, M.
700 1 2 _aDavidow, P.
700 1 2 _aVan Fleet, J.
700 1 2 _aRarang, J.C.
700 1 2 _aRarang, J.C.
700 1 2 _aJohnson, T.J.
700 1 2 _aYoo, H.D.
700 1 2 _aTrieu, A.
700 1 2 _aKrueger, S.
700 1 2 _aWu, C.
700 1 2 _aLu, Y.
700 1 2 _aFlavell, R.B.
700 1 2 _aBobzin, S.C.
856 4 0 _uhttps://drive.google.com/file/d/1Z845koqDcGu4xba3yU8hSz7l9zqQPYQk/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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