13 research outputs found
Plankton sampling by the training vessel Umitaka-maru in the Indian sector of the Southern Ocean in the austral summer of 2010/2011
Plankton sampling by the training vessel Umitaka-maru in the Indian sector of the Southern Ocean in the austral summer of 2011/2012
Comparison of abundance and biomass of dominant copepods around the marginal ice zone along the 110°E in the Antarctic Ocean
第6回極域科学シンポジウム[OB] 極域生物圏11月16日(月) 国立極地研究所1階交流アトリウ
The vertical distribution and abundance of copepod nauplius around the marginal ice zone along 110°E in the Antarctic Ocean
第6回極域科学シンポジウム[OB] 極域生物圏11月16日(月) 国立極地研究所1階交流アトリウ
Studies on Metabolites of Macrophoma commelinae. IV. : Substrate Specificity in the Biotransformation of 2-Pyrones to Substituted Benzoic Acids
Studies on metabolites of macrophoma commelinae. IV. Substrate specificity in the biotransformation of 2-pyrones to substituted benzoic acids.
Studies on Metabolites of Macrophoma commelinae. IV. : Substrate Specificity in the Biotransformation of 2-Pyrones to Substituted Benzoic Acids
Substrate specificity in the novel biotransformation from 2-pyrone derivatives to substituted benzoic acids by Macrophoma commelinae (IFO 9570) was investigated by means of feeding experiments with various compounds. Among them, 2-pyrone derivatives substituted by an electron-donating group at C-4,by an electron-withdrawing group at C-5 and by an alkyl group at C-6 were converted to the corresponding benzoic acid derivatives in fairly good yields. The C_3-unit precursors and intermediates were examined in stationary or shaking culture. Based on the experimental results obtained, a mechanism for this unique reaction is proposed