Department of Chemistry, University of Keele Staffordshire, ST5 5BG, UK.
J Chem Ecol. 1984 Oct;10(10):1453-68. doi: 10.1007/BF00990315.
The trail pheromone of the antTetramorium caespitum L. is a 70∶30 mixture of 2,5-dimethylpyrazine and 3-ethyl-2, 5-dimethylpyrazine. The average total amount of the two pyrazines present in the poison vesicle was found to be 3.9 ng per ant, of which 2.7 ± 0.4 ng is 2,5-dimethylpyrazine and 1.15 ±0.25 ng is 3-ethyl-2,5-dimethylpyrazine. The pyrazines constitute only 0.03% of the volume of the poison vesicle but account for the whole of the trail-following activity. A 70∶30 mixture of the respective pyrazines evoked the highest activity in artificial trail-following tests.
蚂蚁 Tetramorium caespitum L. 的踪迹信息素是 2,5-二甲基吡嗪和 3-乙基-2,5-二甲基吡嗪的 70∶30 混合物。在毒囊中发现的这两种吡嗪的总含量平均为每只蚂蚁 3.9 纳克，其中 2.7±0.4 纳克为 2,5-二甲基吡嗪，1.15±0.25 纳克为 3-乙基-2,5-二甲基吡嗪。吡嗪仅占毒囊体积的 0.03%，但却构成了整个追踪活动的基础。在人工追踪测试中，相应吡嗪的 70∶30 混合物引起了最高的活性。
