Smith M J, Lethbridge G, Burns R G
Research School of Biosciences, University of Kent, Canterbury, UK.
FEMS Microbiol Lett. 1997 Jul 1;152(1):141-7. doi: 10.1111/j.1574-6968.1997.tb10420.x.
Inoculation of soil with bacteria (a Gram-negative rod [PD2] and a 4-membered consortium [DC1]) accelerated mineralisation of phenanthrene and pyrene (but not naphthalene) added individually to a pristine sand and a pristine organic soil. The half-life of naphthalene was 3.5 days in both soils whether inoculated or non-inoculated. However, the half-life of phenanthrene decreased from 86 days in non-inoculated sand soil and 80 days in the non-inoculated organic soil to 3.6 days in the sand and 3.1 days in organic soil when inoculated with PD2, and to 6.6 days in the sand and 8.7 days in the organic soil when inoculated with DC1. Phenanthrene mineralisation ceased after 23 days in DC1-inoculated soil and was 71.3 +/- 3.6% (sand) and 63.3 +/- 2.8% (organic). This compared with 96.8 +/- 3.8% (sand) 102.8 +/- 2.5% (organic) after 8 days in PD2-inoculated soil. Inoculation with DC1 (but not PD2) also accelerated mineralisation of pyrene, where the half-life decreased from 155 days to 18 days in the sand soil, and from 216 days to 33 days in organic soil.
用细菌（一种革兰氏阴性杆菌[PD2]和一个四元菌群[DC1]）接种土壤，加速了单独添加到原始砂土和原始有机土壤中的菲和芘（但不包括萘）的矿化。无论接种与否，萘在两种土壤中的半衰期均为3.5天。然而，接种PD2时，菲在砂土中的半衰期从未接种砂土中的86天和未接种有机土壤中的80天分别降至3.6天和3.1天；接种DC1时，菲在砂土中的半衰期降至6.6天，在有机土壤中降至8.7天。在接种DC1的土壤中，23天后菲的矿化停止，矿化率分别为71.3±3.6%（砂土）和63.3±2.8%（有机土壤）。相比之下，接种PD2的土壤在8天后，菲的矿化率分别为96.8±3.8%（砂土）和102.8±2.5%（有机土壤）。接种DC1（而非PD2）也加速了芘的矿化，芘在砂土中的半衰期从155天降至18天，在有机土壤中从216天降至33天。
