Degradation of labelled lignins and veratrylglycerol-beta-guaiacyl ether by Acinetobacter sp.
Acinetobacter sp. evolved 14CO2 from 14C-(ring)DHP lignin and 14C-teakwood lignin. Veratrylglycerol-beta-guaiacyl ether, a lignin model compound with beta-o-4 linkage was cleaved by Acinetobacter sp. Veratrylglycerol-beta-guaiacyl ether into 2(o-methoxyphenoxy) ethanol and veratrylalcohol 2(o-methoxyphenoxy) ethanol was degraded to guaiacol and then to catechol whereas veratrylalcohol was converted to veratraldehyde, veratric acid, vanillic acid, protocatechuic acid and catechol. Both catechol 1,2-dioxygenase and protocatechuate 3,4-dioxygenase were detected in veratrylglycerol-beta-guaiacyl ether grown cultures.
Vasudevan
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N
Centre for Advanced Study in Botany, University of Madras, India.
Mahadevan
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A
D000150:Acinetobacter / Q000201:enzymology / Q000254:growth & development / Q000378:metabolism*; D001592:Benzyl Alcohols / Q000378:metabolism*; D002245:Carbon Dioxide / Q000378:metabolism; D002250:Carbon Radioisotopes; D050548:Catechol 1,2-Dioxygenase; D049308:Dioxygenases; D006140:Guaifenesin / Q000031:analogs & derivatives* / Q000378:metabolism; D006868:Hydrolysis; D008031:Lignin / Q000378:metabolism*; D010105:Oxygenases / Q000378:metabolism; D011520:Protocatechuate-3,4-Dioxygenase / Q000378:metabolism
D001592:Benzyl Alcohols; D002250:Carbon Radioisotopes; C047159:veratrylglycerol-beta-guaiacyl ether; D002245:Carbon Dioxide; D006140:Guaifenesin; D008031:Lignin; D010105:Oxygenases; D049308:Dioxygenases; D050548:Catechol 1,2-Dioxygenase; D011520:Protocatechuate-3,4-Dioxygenase; C042197:veratryl alcohol