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本文研究结果表明：腐食酪螨Ｔｙｒｏｐｈａｇｕｓｐｕｔｒｅｓｃｅｎｔｉａｅ（Ｓｃｈｒａｎｋ）成螨在０％、８％、１６％（容积比）ＣＯ２气体中耗氧量随ＣＯ２浓度的增加而增加，当在３２％、６４％ＣＯ２气体中，该成螨的耗氧量反倒低于其在正常大气中的耗氧量。在０％、８％、１６％、３２％、６４％ＣＯ２与０．０５ｍｇ／ＬＰＨ３混合气体中该成螨对ＰＨ３的吸收量分别为１．１１±０．９２、１．７９±０．５６、５．１４±１．１３、７．６０±１．８０、８．０８±０．８５μｇ／ｈｒ’ｇ，在同一ＣＯ２浓度条件下试螨对ＰＨ３的吸收量在高浓度ＰＨ３（０．４５ｍｇ／Ｌ）中明显大于在低浓度ＰＨ３（０．０５ｍｇ／Ｌ）中，但ＰＨ３吸收量的增加倍数远远低于ＰＨ３浓度的增加倍数。ＰＨ３对该螨过氧化氢酶的抑制体内酶高于离体酶，细胞色素ｃ氧化酶受ＰＨ３抑制则相反。被ＰＨ３抑制的过氧化氢酶和细胞色素Ｃ氧化酶活性恢复时间分别为二周和一周。本文还对ＰＨ３的可能杀螨机理及ＣＯ２在此过程中的作用进行了讨论
The results of this study indicate that the O 2 consumption of Oryza auricula in Tyrophagusputrescentiae (Schrank) increases with the increase of CO2 concentration in 0%, 8%, 16% (volume ratio) , The oxygen consumption of the adult mites is lower than the oxygen consumption in the normal atmosphere. The uptake amount of PH3 by the adult mites in the mixed gas of 0%, 8%, 16%, 32%, 64% CO2 and 0.05 mg / L H3 was 1.11 ± 0.92 and 1.79 ± 0.56 , 5.14 ± 1.13, 7.60 ± 1.80 and 8.08 ± 0.85μg / hr’g, respectively. Under the same CO2 concentration, the uptake of PH3 by mites at the high concentration of PH3 (0.45mg / L) was significantly greater than at low concentrations of PH3 (0.05mg / L), but the fold increase in PH3 uptake was much lower than the fold increase in PH3 concentration. PH3 inhibition of the mite catalase enzyme in vivo higher than in vitro enzyme, cytochrome c oxidase by the PH3 inhibition on the contrary. The catalase and cytochrome C oxidase activity recovery times inhibited by PH3 were two weeks and one week respectively. This paper also discussed the possible mechanism of acaricidal action of PH3 and the role of CO2 in this process