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81.
Sterols of Chlorella. II. The Occurrence of an Unusual Sterol Mixture in Chlorella vulgaris 总被引:2,自引:2,他引:0 下载免费PDF全文
Patterson GW 《Plant physiology》1967,42(10):1457-1459
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Glenn W. Patterson 《Journal of phycology》1967,3(1):22-23
Cultures of Chlorella vulgaris were grown aulo-trophically under fluorescent light and heterotrophically on glucose and inorganic salts. Hydrocarbons were extracted and analyzed by gas-liquid chromatography, molecular sieve separations, and silicic acid-AgNO3 chromatography. Chlorella vulgaris grown under both culture conditions contained a series of saturated n-paraffins ranging from 17 to 36 carbon atoms in length. This is in contrast to reports in the early literature which indicated that the hydrocarbon fraction of algae was composed of only 1 or 2 specific hydrocarbons. Only under heterotrophic conditions, however, did C. vulgaris produce 1-penta-cosene and 1-heptacosene as the primary components of the hydrocarbon mixture. Other Chlorella species were examined, but only C. vulgaris produced significant quantities of these compounds. 相似文献
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Immunohistochemical absence of adrenergic neurons in the dorsal part of the solitary tract nucleus in sudden infant death 总被引:1,自引:0,他引:1
F Chigr M Najimi D Jordan L Denoroy J Pearson M Tommasi R Gilly N Kopp 《Comptes rendus de l'Académie des sciences. Série III, Sciences de la vie》1989,309(12):543-549
The immunohistochemical distribution of TH and PNMT containing neuronal elements was investigated utilizing peroxidase anti-peroxidase methods in newborn control and sudden infant death syndrome (SIDS) brainstems. The TH immunoreactive neurons, within the medulla oblongata, displayed a similar distribution in both control and SIDS tissue. However, PNMT immunoreactive neurons seen in the dorsal part of the nucleus of tractus solitarius in control tissue were not observed in SIDS tissue. This alteration of adrenergic neurons in the dorsal part of NTS (region reported to be implicated in the control of blood pressure and respiration) could explain the cardiorespiratory disorders in SIDS. 相似文献
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Large-scale mapping and chromosome jumping in the q27 region of the human X chromosome 总被引:2,自引:0,他引:2
We have used pulsed field gel electrophoresis for further physical mapping studies in the q27 region of the human X chromosome. We show that the DXS 102 locus and the F9 gene are separated by only 300 kb despite a genetic distance of 1.4 cM; this linkage orients our large-scale map and shows that the mcf.2 transforming sequence is telomeric to F9. A BssHII complete-digest jumping library was used to jump toward the DXS 105 locus; a 130-kb jump was achieved and the corresponding "linking clone" was obtained. 相似文献