Effects of earthworm and arbuscular mycorrhizal fungal inoculation on carbon component accumulation and allocation in rocky desertification soils.

Exploring the responses of carbon component accumulation and allocation to arbuscular mycocorrhizal fungi (AM) and earthworm inoculation can provide reference for improving carbon sequestration potential and bioremediation efficiency in rocky desertification soils. In this study, we chose as the host plant to inoculate with (FM), earthworm (E), and E+FM, using no earthworm and mycorrhizae addition as CK to examine the spatiotemporal variations in soil carbon components (i.e.

Effects of ant nests on soil CH emissions from communities of a secondary tropical forest.

Exploring the effects of ant nests on soil CH emissions in the secondary tropical forests is of great scientific significance to understand the contribution of soil faunal activities to greenhouse gas emissions. With static chamber-gas chromatography method, we measured the dry-wet seasonal dynamics of CH emissions from ant nests and control soils in the secondary forest of communities in Xishuangbanna. We also examined the linkages of ant-mediated changes in functional microbial diversity and soil physicochemical properties with CH emissions.

[Molecular cloning and expression of extremely thermostable and acid-stable amylase gene in Pichia pastoris].

The gene encoding a extremely thermostable and acid-stable alpha-Amylase was amplified by PCR using hyperthermophilic archaebacterium pyrococcus furiosus genomic DNA as template. Then the gene was cloned into the vector of pPIC9K. The recombinant vector pPIC9K-amy was then transformed into E.