關鍵詞：cassava tetranychus cinnabarinus avermectin resistance 

摘要：The susceptible strain of Tetranychus cinnabarinus (Boisduval) was collected from the cassava germplasm resource garden of Guangxi South Subtropical Agricultural Science Research Institute and raised for 15 generations,during which resistance selection against avermectin was performed through the indoor spraying of avermectin,thereby obtaining an avermectin-resistance strain (Ab-R) with a resistance ratio of 3.25.After the indoor resistance selection,the determination of detoxification enzyme activity in the Ab-R and SS strains showed that the specific activity of carboxylesterases (CarE),glutathione-s-transferases (GSTs) and multi-functional oxidase (MFO) in Ab-R15 was 1.27,1.69 and 1.92 times of that in SS,respectively.In addition,the specific activity of MFO in Ab-R5,Ab-R10 and Ab-R15 was significantly different from that in SS;there was no significant difference in the specific activity of CarE compared with SS when screened to the F10 generation;and when screened to the F5 generation,there was no significant difference in the specific activity of GSTs compared with SS.The results showed that the significant increase in MFO activity was an important cause of resistance to avermectin in T.cinnabarinus,and CarE and GSTs were also involved in the formation of avermectin-resistant strains.

生物技術雜志要求:

{1}借喻詞一般需用“”號；課題名用“”號，不用“《》”。

{2}來稿一般在1個月內提出處理意見，請不要一稿兩投，若1個月后仍未收到稿件處理通知，作者有權自行處理來稿。

{3}參考文獻著錄采用數(shù)字加方括號編序集中列于文后，其著錄格式如下：序號、主要作者、文獻及載體、出版項（出版者、出版年月）。

{4}中、英文關鍵詞3～8個，中文關鍵詞間空1個字距，不用任何標點符號，英文關鍵詞用分號(；)隔開。

{5}作者姓名的漢語拼音應姓前名后，姓氏全部字母為大寫，名字的首字母大寫，雙名中間不加連字符不間隔；漢語拼音的作者姓名寫在英文表示的工作單位之前；多位作者的署名之間以逗號隔開；不同單位的作者姓名右上角加注序號。

注：因版權方要求，不能公開全文，如需全文，請咨詢雜志社