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Plant genes encoding some of the enzymes of phenylpropanoid metabolism pathway

100%

Narozna D. , Madrzak C. J.

Biotechnologia

1999

nr 3

154-168

The phenylpropanoid metabolism in plants is an important source of numerous compounds of great importance in development and defense. In particular, flavonoids play a significant role as signal compounds, phytoalexins, UV-protectants, pigments etc. Numerous enzymes (PAL, CHS, CHI, CHR, IFR and many others) are involved in this branched metabolic pathway. The key enzymes of phenylpropanoid biosynthesis are phenylalanine ammonia-lyase (PAL), and chalcone synthase (CHS). Both enzymes (as well as some other of the pathway) are encoded by multigene families. The organospecific expression of different members of these families is presumably the key factor for the regulation of the entire pathway. Several cis-elements, and trans-acting factors have been already described, however it is too early to formulate the conclusive model of the overall transcriptional regulation of the phenylpropanoid metabolism.

Secondary metsabolites of tissue of Lamiaceae species

58%

Skrzypczak-Pietraszek E. , Grzybek j.

Biotechnologia

1997

nr 2

93-110

This paper reviews information from last decade world literature on the occurence in tissue cultures of some Lamiaceae species of secondary metabolites.The introductory part of paper gives information on the occurence of the biological active secondary metabolites in the native plant species from Lamiaceae family.