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91.
三节茧蜂属Acampsis Wesmael是屏腹茧蜂亚科中的1个小属,全世界仅知1种。本文新添在我国发现的2个新种:中华三节茧蜂A.chinensis sp.nov.(陕西)和湖南三节茧蜂A.hunanensis sp.nov.(湖南)。这是本属在我国的首次发现,也是在东洋区的首次报道。 相似文献
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Conclusion Anthropologists have too often supported — in their words, in their presences, and in their deeds — the paternalistic claims of rulers suppressing the very cultures they want to study. Much anthropological work legitimates substitution of the language of Beijing for Hakka and Holo, justifies ignoring Taiwanese culture, and subordinates consideration of its specific features to writing about Chinese civilization, just as Taiwanese are economically and politically subordinated to the ethnic minority dictatorship which still rules Taiwan under the fiction of being the government of China. The China that Arthur Wolf and others serve in return for support of their research from what purports to be the Republic of China is an egregious, but unfortunately not unique, example.Stephen O. Murray is with El Instituto Obregón, San Francisco, California. Keelung Hong is with the Cancer Research Institute, University of California, San Francisco.As is normal in anthropology, except for Taiwan, native terms are romanized in the native language (in the first author's recording of the second author's Daidiong idiolect, without indication of the extremely intricate tone differentia), not in the official language of the ethnic oligarchy ruling Taiwan (Beijinghua). Mainland place names are rendered in pinyin. We have followed the convention of treating Chinese and Taiwanese personal names as two words, because books are catalogued with such names. If personal names are considered as two words (an imposition of the hoary dogma that words in Sino-Tibetan languages are monosyllabic), it seems to us that both words should be capitalized. For Taiwanese placenames, we have not separated syllables by dashes or by spaces. 相似文献
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Cold shock and heat shock: a comparison of the protection generated by brief pretreatment at less severe temperatures 总被引:1,自引:0,他引:1
Abstract Brief exposure to low (0o C) or high (40o C) temperature elicits a protective response that prevents injury when the flesh fly, Sarcophaga crassipalpis Macquart, is subjected to more severe cold (-10o C) or heat (45o C). Both the low and high temperature responses were found in all developmental stages of the fly, but were most pronounced in the pupal and pharate adult stages. The protective responses generated by brief exposure to 0 or 40o C appear similar in that both result in a rapid acquisition of cold or heat tolerance and a loss of protection after the flies are returned to 25o C. The protection generated by chilling is obvious within 10 min of exposure to 0o C while a 30 min exposure to 40o C is required to induce the high temperature protection. High temperature protects against cold shock injury within a narrow range (around 36o C) but we have no evidence that low temperature can protect against heat injury. We previously demonstrated that the rapid increase in cold tolerance correlates with concomitant increases in glycerol concentration, but in this study we found no significant elevation in glycerol in heat-shocked flies. Thus the physiological and biochemical bases for the rapid responses to cold and heat appear to be different. 相似文献
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Plant-microbial interaction under gnotobiotic conditions: A scanning electron microscope study 总被引:2,自引:0,他引:2
Inoculation of canola seeds withPseudomonas putida GR12-2 stimulates root elongation under gnotobiotic conditions. Transformation ofP. putida GR12-2 with the broad-host-range plasmid pGSS15 abolishes the enhancement of root elongation. With scanning electron microscopy it was found that both transformed and nontransformedP. putida GR12-2 are capable of binding to canola seed coats. In addition, it was observed that 4 days after the initial inoculation the roots of bothP. putida GR12-2- and GR12-2/pGSS15-treated seedlings were free of adhering bacteria despite the fact that it was subsequently shown that both bacterial strains are capable of binding to roots. Thus, adhesion to roots is not necessary for the initial phase of enhanced root elongation that is induced byP. putida GR12-2 under gnotobiotic conditions. 相似文献