Isolation and characteristics of PAHs-degrading strains Distribution of NuMA-like Proteins and Its Changes During Cell cycle in Plant Cells Acaricidal Activities of Polygonum aviculare Extracts against Tetranychus cinnabarinus and Their Effects on Enzyme Activities in the Mite Species/Provenance Trials of Four Exotic Pines in Southern China Forms and Accumulation of Aluminum in Tea Plant(Camellia sinensis)