Israelensis recombinants, which contained recombinants plasmid pmt4 and pmt9 respectively, were obtained by electroporation. the bioassay results showed that the recombinants b - pmt9 and b - pmt4 had toxicities both to resistant and susceptible c. quinqnefasciatus larvae during vegetative growth stage, having the lc ? o values similar to that of. fi. sssii - 1. however, the toxic levels of the final sporulated cultures of recombinants b - pmt4 and b - pmt9 differed, with a lcso value of 2 49mg / ml for b - pmt9 and little toxicity for b - pmt4 by using the plasmid pmt9, m txl gene from b. sphaericus was ligated with p20 and cytjaa gene, giving recombinant plasmid pmpx2
含有pmt9和pmt4的大腸桿菌轉化子能表達產生mtx1毒素，發酵液對敏感和抗性致倦
庫蚊幼蟲具有中度毒殺作用；含有pmt9和pmt4的蘇雲金芽孢桿菌轉化子b - pmt9和b - pmt4在營養體生長階段對敏感
蚊幼和抗性幼蟲也具有毒性，毒力與野生型b . sss - 1相當，而不同轉化子在芽孢形成期的毒力因插入的mtx1基因轉錄方向不同而表現出差異，其中b - pmt4對目標
蚊幼毒力極低（ lc _ （ 50 ） 10mg ml ） ，而b - pmt9對
蚊幼蟲具有毒性（ lc _ （ 50 ） = 2 . 49mg ml ） 。
As part of the investigation, fehd set up mosquito traps in the vicinity of the patient s home for laboratory testing
另外，該署亦在附近裝設
蚊子誘捕器捕捉
庫蚊的成
蚊化驗。
Je is transmitted by culicine mosquitoes living mainly in rural areas. the mosquitoes breed in water - logged fields and marshes. the public is reminded to take measures to prevent mosquito breeding by removing stagnant water
日本腦炎主要在鄉郊由
庫蚊傳播，該
蚊在水浸的田地及沼澤生長，市民應採取措施清除積水，預防
蚊子滋生。
Fehd s pest control officer - in - charge of the food and environmental hygiene department fehd, mr yuen ming - chi, said at the briefing that the major vector for je in hong kong, culex tritaeniorhynchus had been collected at sha kong tsuen and its surrounding areas
食物環境生署防冶蟲鼠主任主管袁銘志在記者會上表示，署方曾在沙江村及鄰近地方，發現日本腦炎在香港的主要病媒-三帶喙
庫蚊culex tritaeniorhychus 。
Noting that there is concern about whether mangroves found at the seashore in the area was a breeding ground of the je vector, mr yuen said salted water is not the natural habitat for culex tritaeniorhynchus
至於有人士關注該區海旁的紅樹林是否日本腦炎病媒的滋生地點，袁銘志表示鹹水並不是三帶喙
庫蚊的滋生地。
The principal vector of je, culex tritaeniorhynchus breeds in water - logged abandoned fields, rice fields, marshes and water collections around cultivated fields
（三）日本腦炎的主要病媒是三帶喙
庫蚊，它們在積水的荒田、稻田、沼澤和耕地周邊的積水處滋生。
Conclusion based on the data obtained in this investigation, it is possible that the dissimilarity in the structure of the analogues leads to their different bioactivity
結論12種新型吡啶類鬼臼毒素衍生物對3齡初淡色
庫蚊幼蟲毒殺作用的差異可能與結構上的差異有關。
Results from twelve novel pyridine ring derivatives of podophyllotoxin, three compounds 4. 4 、 4. 5 and 4. 6 have more higher toxicities than others, and the lc50 were 1. 66, 3. 96 and 1. 54 mg / l respectively
結果12種新型吡啶類鬼臼毒素衍生物對3齡淡色
庫蚊幼蟲的毒殺作用有明顯的差異，化合物4 . 4 、 4 . 5和4 . 6的毒殺作用明顯高於其它化合物。
The mosquitoes breed mainly in water - logged fields, marshes, ditches and small stable collections of water around cultivated fields. the public is reminded to prevent mosquito breeding by removing stagnant water
發言人表示，日本腦炎由
庫蚊傳播，該
蚊在積水農田、沼澤、溝渠及耕地四周的積水處滋生，市民應採取措施清除積水，預防
蚊子滋生。
The spokesman said je is transmitted by culicine mosquitoes. the mosquitoes breed mainly in water - logged fields, marshes, ditches and small stable collections of water around cultivated fields. the public is reminded to take measures to prevent mosquito breeding by removing stagnant water
發言人表示，日本腦炎主要由
庫蚊傳播，該
蚊在積水農田、沼澤、溝渠及耕地四周的積水處滋生，市民應採取措施清除積水，預防
蚊子滋生。
Japanese encephalitis is a notifiable disease in hong kong. it is transmitted by culicine mosquitoes and the transmission reaches its dead end in humans
日本腦炎在香港是需要呈報的疾病，主要病媒是三帶喙庫蚊，人類感染日本腦炎后，這疾病便不能再傳播予第三者。
