巻号一覧
69 巻, 12 号
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三沢 典彦1995 年 69 巻 12 号 p. 1567-1572
発行日: 1995/12/01
公開日: 2008/02/14
ジャーナル フリーPDF形式でダウンロード (650K) -
服部 束穂1995 年 69 巻 12 号 p. 1573-1580
発行日: 1995/12/01
公開日: 2008/02/14
ジャーナル フリーPDF形式でダウンロード (927K) -
秋野 順治, 鶴島 鉄, 山岡 亮平1995 年 69 巻 12 号 p. 1581-1586
発行日: 1995/12/01
公開日: 2008/02/14
ジャーナル フリーIn the mandibular gland of Lasius fuliginosus, several terpenoids were contained. It was found that some of the contents inhibited the spore germination of the plant pathogenic fungi, Colletotrichum lagenarium by a TLC plate bioassay. The antifungal contents were extracted with n-hexane from the heads of workers. The main compound was eluded into 10% ether/hexane when the contents were chromatographed on a silica gel. The isolated compound was analyzed by using gas chromatography, gas chromatography-mass spectrometruy, 1H-NMR, and 13C-NMR. From these spectra the main antifungal compound was identified to be a new one, 3-formyl-7, 11-dimethyl-(2E, 6Z, 10)-dodecatrienal(FDDal). FDDal completely inhibited the spore germination of C. lagenarium at 1 ppm, and that of four species of insect pathogenic fungi at 10 ppm.抄録全体を表示PDF形式でダウンロード (629K) -
末澤 保彦1995 年 69 巻 12 号 p. 1587-1596
発行日: 1995/12/01
公開日: 2008/02/14
ジャーナル フリーBioconversions of feluric acid (FA) and p-coumaric acid (pCA) to volatile phenols by halotolerant yeasts were studied in the high salt medium such as 15% NaCl ; Debaryomyces hansenii, Pichia subpelliculosa, P. anomala, and Candida famata converted FA and pCA to the vinylphenols 4-vinyl guaiacol and 4-vinyl phenol under static culture (Vinylphenol-producing yeast group), C. versatilis, C. halophila, and C. mannitofaciens to the ethylphenols 4-ethyl guaiacol and 4-ethyl phenol (Ethylphenol-producing yeast group), and C. etchellsii, C. nodaensis, C. halonitratophila, P. farinosa, and Zygosaccharomyces rouxii not to volatile phenols (Volatile phenols non-producing yeast group), respectively. It was indicated that cinnamic acids were converted from FA and pCA to vinylphenols by cinnamate decarboxylase (CDase) (Step 1), and sucessively from vinylphenols to ethylphenols by vinylphenol reductase (VRase) (Step 2). Each CDase and VRase of the yeasts showed different specific activities among the species, and some enzymes were inhibited by catechin. Six species of nitrate-assimilating halotolerant yeasts, "Candida group III" were divided from two groups, ethylphenol-producing yeasts and volatile phenol non-producing yeasts, that supported the results of a chemotaxonomic study of the halotolerant Candida Yeasts by Suzuki et al.抄録全体を表示PDF形式でダウンロード (936K)
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