Anaplasma (Ehrlichia) phagocytophila and Ehrlichia chaffeensis, the etiologic agents of granulocytic and monocytic ehrlichioses, respectively, are obligatory intracellular bacteria that cause febrile systemic illness in humans. We identified and characterized clusters of genes for a type IV secretion machinery in these two bacteria, and analyzed their gene expression in cell culture and mammali...

Successive planting is the main pattern for cultivating Chinese fir (Cunninghamia. lanceolata (Lamb.) Hook.). However, influence of this management has not been totally investigated, especially with respect to changes in soil microbial community and relationship properties. This study investigated physical chemical properties soil, its enzyme activities, diversity three adjoining plantations ma...

To reveal the effects of different land-use types on soil enzyme activities, samples were collected from 0–10, 10–20 and 20–30 cm layers to compare analyze β-glucosidase (BG), urease (URE), protease (PROT) catalase (CAT) activities in farmland (FL), abandoned land (AL) three plantation forests: Platycladus orientalis (L.) Franco (PO), Robinia pseudoacacia L. (RP) Quercus variabilis Bl. (QV) roc...