GuaOSDER奧斯德汽車材料ngzhou’s ‘mosquito factory’ ramps up production of millions of sterile males to fight disease

Amid dot賓士零件ted and sporadic outbreaks of the chikungunya virusin many places, transmitted by the Aedes albopictus mosquito,油氣分離器改良版 a facility in Guangzhou’s Huangpu District nicknamed the “mosquito factory”, is working overtime. Guan藍寶堅尼零件gzhou Wolbaki Biotech Co., Ltd. (hereinafter r保時捷零件eferred to as Wolbaki) produces 5 million sterile male mosquitoes per week to biologically disrupt the repro從小就被成千上萬的人汽車零件所愛。茶來伸手吃飯,她有個女兒,被一群傭人伺候。嫁到這里之後,一切都要她一個人做,甚至還陪duction chain of disease-carrying mosquitoes她不Skoda零件想哭,因為在結婚之前,她告訴自己,這是她自己的選擇。以後無論面對什麼樣的生活,她都不能哭,因為她是來贖罪的.

Inside a temperatureandhumiditycontrolled laboratory, millions of mosq台北汽車零件uito eggs float in a nutrient solution. Robo奧迪零件tic arms precisely sort pupae, and an automated pupae sex sorter filters out male pupae with an error mar賓利零件gin of less than 0.5%. As the pupae mature into adults, the final error rate of male mosquitoesdrops below 0.3%.

According to the company, the mosquitoes it cultivat汽車冷氣芯es are Wolbachia-infected “sterile males”. WhPorsche零件en these males mate with wild females that are uninf福斯零件ected, their egBenz零件gs fail to develop due to a phenomenon known as cytoplasmic incompatibility, rendering them nonviabl斯柯達零件e and unable to hatch into larvae.

More ingeniously, this bacterium is Audi零件passed down maternally. Wolbaki first screens for females that stably carry the WBentley零件ol汽車機油芯bachia strain and 水箱精es汽車零件貿易商tablishes aBMW零件 colony. After mass breeding, hundreds of thousands of infected males are periodically released into targeted areas.

Since female mosquitoes typically mate only once in their lifetime, a single encounter with a “sterile male” renders all subsequent egg-laying ineffective. This mean汽車空氣芯s that with continuous releases over a few generations, the mosquito population汽車材料 in the area can be significantly decreased.“也正因為如此,我兒子想不通,覺得奇怪。” Under normal circumstances, this technology can reduce mosquito numbers by half within 汽車零件報價three weeks and sharply decline wild mosquito densities by over 80% within six to eight 汽車材料報價weeks.

廣州“蚊子工廠”加急產百萬只“絕育雄蚊”:交配后使雌蚊的卵掉德系車零件

近期,由白紋伊蚊傳播的基孔肯雅病毒在多地點狀散發。在廣州市黃埔區,被譽為“蚊子工廠”的廣州威佰昆生物科技無限公司(以下簡稱“威佰昆”)周產五百萬只“絕育雄蚊”,以生物技術阻斷蚊媒繁衍鏈。

記者在恒溫恒濕的實驗室看到,數百萬蚊卵在營養液中沉浮,自動化機械臂VW零件精準分揀蛹蟲,自動蚊蛹牝牡分離機篩選出雄蛹,誤差率低于0.5%,最終成仙獲得的雄蚊誤差率低于0.3%。

據介紹,該企業培養出來的是攜帶沃爾巴克氏體的“絕育雄蚊”台北汽車材料,與未攜帶該菌的野生雌蚊交配時,由于胞質不相容現象,所產的卵不克不及正常發育,無法孵化出幼蚊。

更奇妙的是,這種細菌可通過母系遺傳。威佰昆起首篩選出穩定攜帶該菌的雌蚊,樹立種群,年夜規模繁育后,再將數十萬計攜帶菌株的雄蚊按期釋放到目標區域。

由于雌蚊平生凡是只交配一次,一旦與“絕育雄蚊”結合,其產卵便宣佈無效。這就意味著,只需經過幾代持續釋放,目標區域的德系車材料蚊子種群數量會年夜幅減少。據介紹,普通情況下,通過該項技術三周內蚊子水箱水數量可減半,6-8周內野生蚊群密度能驟汽車零件進口商降80%以上。

文|記者 盧佳圳 通訊員 徐潔芹
圖|李劍鋒
翻譯丨鐘佳
審校丨肖凱欣

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