The seasonal fluctuation of the plasmodia ofMyxobolus gibelioiWu et Wang, 1982 in the gill filaments of the allogynogenetic gibel carpCarassius auratus gibelio(Bloch) in a fish pond in Hubei Province of China was inve...The seasonal fluctuation of the plasmodia ofMyxobolus gibelioiWu et Wang, 1982 in the gill filaments of the allogynogenetic gibel carpCarassius auratus gibelio(Bloch) in a fish pond in Hubei Province of China was investigated from August 1999 to July 2000. A total of 445 fish was examined; the overall prevalence of the plasmodium infection in the fish was 64.94% and mean abundance of plasmodia was 11.65 ± 27.85 (mean ± SD). Significant seasonal changes in prevalence and mean abundance, with higher levels of the plasmodia infection from late spring to autumn, were observed.展开更多
Objective:To evaluate the prevalence of co-infection of hepatitis B and Plasmodia among potential blood donors in Benue State,and Nigeria at large and offer suggestions and containment methods.Methods:Three hundred an...Objective:To evaluate the prevalence of co-infection of hepatitis B and Plasmodia among potential blood donors in Benue State,and Nigeria at large and offer suggestions and containment methods.Methods:Three hundred and thirty seven(337) potential blood donors,comprising 229(67.95%) Males and 108(32.05%) Females were screened for co-infection with hepatitis B virus(HBV) and Plasmodia between the months of July and December,2009 using standard laboratory methods.Results:An overall co-infection rate of 137(40.67%) was observed among the donors.The month of December showed highest co-infection rates 59(17.51%).Highest rates of infection was observed in males at 129(38.30%) to 8(2.37%) in females.Statistical analysis showed significant difference in infection rates between males and females(P【0.05).The more youthful age groups 18-22,23-27 and 28-32 had higher prevalence of infection at 11.90%,13.05% and 6.53%,respectively.Irrespective of age group,males showed higher rates of infections than females in corresponding age groups.Conclusions:The high rates of co-infection imply that these infections are threats the health of citizens and should be adequately addressed by adoption of strategies to combat and control them.Further,blood should be rigorously screened before transfusion to safeguard the health of recipients.展开更多
Many Ri T-DNA-transformed roots were incited on seedling hypocotyl segments of cabbage, cauliflower and oilseed rape following genetic transformation with Agribacterium rhi-zogencs. The transformed roots were in vitro...Many Ri T-DNA-transformed roots were incited on seedling hypocotyl segments of cabbage, cauliflower and oilseed rape following genetic transformation with Agribacterium rhi-zogencs. The transformed roots were in vitro inoculated with the resting spores of Plasmodi-ophora brassicae on solid medium, in liquid medium and semi-solid medium respectively.On solid medium, the resting spores penetrated root hair cells, but the root cortex was not invaded so that no symptom of clubroot galls was developed. In liquid medium, the root cortex was invaded, giving rise to an abnormal division of root cortical tissues and gall formation. In semi-solid medium, the resting spores penetrated the cells of the cut surfaces of root segments and caused the cut surfaces to swell.展开更多
文摘The seasonal fluctuation of the plasmodia ofMyxobolus gibelioiWu et Wang, 1982 in the gill filaments of the allogynogenetic gibel carpCarassius auratus gibelio(Bloch) in a fish pond in Hubei Province of China was investigated from August 1999 to July 2000. A total of 445 fish was examined; the overall prevalence of the plasmodium infection in the fish was 64.94% and mean abundance of plasmodia was 11.65 ± 27.85 (mean ± SD). Significant seasonal changes in prevalence and mean abundance, with higher levels of the plasmodia infection from late spring to autumn, were observed.
文摘Objective:To evaluate the prevalence of co-infection of hepatitis B and Plasmodia among potential blood donors in Benue State,and Nigeria at large and offer suggestions and containment methods.Methods:Three hundred and thirty seven(337) potential blood donors,comprising 229(67.95%) Males and 108(32.05%) Females were screened for co-infection with hepatitis B virus(HBV) and Plasmodia between the months of July and December,2009 using standard laboratory methods.Results:An overall co-infection rate of 137(40.67%) was observed among the donors.The month of December showed highest co-infection rates 59(17.51%).Highest rates of infection was observed in males at 129(38.30%) to 8(2.37%) in females.Statistical analysis showed significant difference in infection rates between males and females(P【0.05).The more youthful age groups 18-22,23-27 and 28-32 had higher prevalence of infection at 11.90%,13.05% and 6.53%,respectively.Irrespective of age group,males showed higher rates of infections than females in corresponding age groups.Conclusions:The high rates of co-infection imply that these infections are threats the health of citizens and should be adequately addressed by adoption of strategies to combat and control them.Further,blood should be rigorously screened before transfusion to safeguard the health of recipients.
文摘Many Ri T-DNA-transformed roots were incited on seedling hypocotyl segments of cabbage, cauliflower and oilseed rape following genetic transformation with Agribacterium rhi-zogencs. The transformed roots were in vitro inoculated with the resting spores of Plasmodi-ophora brassicae on solid medium, in liquid medium and semi-solid medium respectively.On solid medium, the resting spores penetrated root hair cells, but the root cortex was not invaded so that no symptom of clubroot galls was developed. In liquid medium, the root cortex was invaded, giving rise to an abnormal division of root cortical tissues and gall formation. In semi-solid medium, the resting spores penetrated the cells of the cut surfaces of root segments and caused the cut surfaces to swell.
