Cell wall-bound coniferyl Alcohol oxidase associated with lignification in coniofers

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dc.contributor.author Savidge, Rodney A.
dc.contributor.author Randeniya, Preethi Udagama
dc.date.accessioned 2021-05-23T12:38:20Z
dc.date.available 2021-05-23T12:38:20Z
dc.date.issued 1992
dc.identifier.citation 94 en_US
dc.identifier.other https://doi.org/10.1016/0031-9422(92)83427-Z
dc.identifier.uri http://archive.cmb.ac.lk:8080/xmlui/handle/70130/5215
dc.description.abstract An enzyme utilizing O2 to oxidize coniferyl alcohol into a lignin-like product is described. This enzyme has been found firmly bound to cell walls in developing xylem of Pinus strobus, Abies balsamea, Larix laricina, Picea rubens and Pinus banksiana. In each of these conifers, oxidase activity arises in synchrony with initiation of lignification and disappears with termination of lignification. By combined gas chromatography-mass spectrometry, the enzyme was found to oxidize coniferyl alcohol into dehydrodiconiferyl alcohol and pinoresinol, and by UV microscopy it was determined that under aerobic in vitro conditions the enzyme converts coniferyl alcohol into hydrophobic globules similar to guaiacyl lignin. By isoelectric focusing, several oxidase isoenzymes were resolved; all appear to be glycoproteins. en_US
dc.description.sponsorship This work was supported by the Natural Sciences and Engineering Research Council of Canada and by Forestry Canada. We thank Mathew Leitch for technical assistance. en_US
dc.language.iso en en_US
dc.publisher Phytochemistry en_US
dc.subject Pinus en_US
dc.subject Abies en_US
dc.subject Larix en_US
dc.subject Picea en_US
dc.subject Gymnospermae en_US
dc.subject cambial growth en_US
dc.subject enzymes en_US
dc.subject glycoprotein en_US
dc.subject leaves en_US
dc.subject lignin en_US
dc.subject secondary wall development en_US
dc.subject tracheid differentiation en_US
dc.subject wood formation en_US
dc.title Cell wall-bound coniferyl Alcohol oxidase associated with lignification in coniofers en_US
dc.type Article en_US


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