Athetis lepigone Moschler is a new kind of insect pest occurring in summer corn production areas. By investigation, it was found especially serious in straw returning fields. In this paper, its damage status was inves...Athetis lepigone Moschler is a new kind of insect pest occurring in summer corn production areas. By investigation, it was found especially serious in straw returning fields. In this paper, its damage status was investigated in straw returning and chemical controlled fields, respectively. The results showed that the rate of damaged plants was 82% and the maximum pest number per 100 plants was 88 heads in the straw returning fields without chemical control. The application of herbicides and pesticides had no significant effects on occurrence quantity and damage rate, but the pest number per 100 plants decreased a little compared to the fields without chemical control. In the surer er maize fields without straw returning, the application of herbicides and pesticides could significantly decrease the damage of Athetis lepigone, the rate of damaged plants was 20%, and the pest number per 100 plants was 6.展开更多
Variable bioreactors have been developed for the evaluation of anti-cancer drug efficacy. The Kinetic and Static Alternating Cell Culture System (KSACCS) combines the advantages of kinetic bioreactors and static cultu...Variable bioreactors have been developed for the evaluation of anti-cancer drug efficacy. The Kinetic and Static Alternating Cell Culture System (KSACCS) combines the advantages of kinetic bioreactors and static cultures to improve cell growth by providing adequate metabolic support while minimizing shear-stress. In the current studies, the KSACCS in the ZYX Bioreactor could significantly increase the sensitivity of lung cancer cells (PLS008) and leukemia cells (HL60) to anticancer drugs Cisplatin and 5-FU by accelerating the apoptosis of cancer cells. It was also shown that excessive agitation of the cells could lead to severe cell damage, which resulted in a diminished sensitivity of anticancer drug evaluation, and co-culture systems tend to reduce the sensitivity of anticancer drug evaluation although it might better mimic in vivo conditions.展开更多
基金Supported by China Agricultural Research System ( CARS-02)
文摘Athetis lepigone Moschler is a new kind of insect pest occurring in summer corn production areas. By investigation, it was found especially serious in straw returning fields. In this paper, its damage status was investigated in straw returning and chemical controlled fields, respectively. The results showed that the rate of damaged plants was 82% and the maximum pest number per 100 plants was 88 heads in the straw returning fields without chemical control. The application of herbicides and pesticides had no significant effects on occurrence quantity and damage rate, but the pest number per 100 plants decreased a little compared to the fields without chemical control. In the surer er maize fields without straw returning, the application of herbicides and pesticides could significantly decrease the damage of Athetis lepigone, the rate of damaged plants was 20%, and the pest number per 100 plants was 6.
文摘Variable bioreactors have been developed for the evaluation of anti-cancer drug efficacy. The Kinetic and Static Alternating Cell Culture System (KSACCS) combines the advantages of kinetic bioreactors and static cultures to improve cell growth by providing adequate metabolic support while minimizing shear-stress. In the current studies, the KSACCS in the ZYX Bioreactor could significantly increase the sensitivity of lung cancer cells (PLS008) and leukemia cells (HL60) to anticancer drugs Cisplatin and 5-FU by accelerating the apoptosis of cancer cells. It was also shown that excessive agitation of the cells could lead to severe cell damage, which resulted in a diminished sensitivity of anticancer drug evaluation, and co-culture systems tend to reduce the sensitivity of anticancer drug evaluation although it might better mimic in vivo conditions.
