共查询到20条相似文献,搜索用时 15 毫秒
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Elizabeth Fraser Butler 《BMJ (Clinical research ed.)》1941,2(4217):630-631
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T. M. Clayton 《BMJ (Clinical research ed.)》1943,1(4292):443-445
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D G Godfrey 《Experimental parasitology》1967,20(1):106-118
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Wound–emitted leaf volatiles in soe species of Thymus were analysed. Fresh shoots without flowers were used. The volatiles were isolated by adsorption on a porous polymer (Tenax GC). The emitted components were separated by a capillary gas chromatograph modified to give reproducible retention time values. The identifications are based on mass spectra and retention time values of reference compounds. The results indicate the mildness of the method used. This is one part of the methodological work of an investigation concerning the biochemical background of pest and disease resistance in plants. Attention is drawn to the urgent need in resistance breeding for a taxonomic survey of the intraspecific allelochemic multitude. 相似文献
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