Diversity and dynamic response of anaerobic ammonia oxidation granular sludge.

Red anaerobic ammonia oxidation (Anammox) granular sludge (AnGS) has been reported in successfully operating Anammox systems, and its color is associated with sludge activity. However, in long-term operating systems, AnGS exhibits different sensory colors, physical structures, community structures, and denitrification performance, but the relationship between them has not yet been elucidated. The AnGS of the Anammox system, which has been in operation for more than a decade, can be divided into two main categories: red and white.

Plant growth-promoting rhizobacterium Bacillus cereus AR156 induced systemic resistance against multiple pathogens by priming of camalexin synthesis.

Phytoalexins play a crucial role in plant immunity. However, the mechanism of how phytoalexin is primed by beneficial microorganisms against broad-spectrum pathogens remains elusive. This study showed that Bacillus cereus AR156 could trigger ISR against broad-spectrum disease.

[Establishment of a mouse model of cyclophosphamide-induced thrombocytopenia and determination of platelet function in this model].

Objective: To establish a mouse model of acute hematopoietic failure and explore the pathological basis of platelet changes in bone marrow suppression.

Methods: An initial large dose of cyclophosphamide (200 mg/kg) was injected through the tail veins of the mice, follow by daily intraperitoneal injection starting on the next day for 7 d. The number and morphology of the cells in the peripheral blood and bone marrow were observed by means of cell counting and smear, respectively, with the platelet aggregation determined using ADP.