Immune responses to Bacillus thuringiensis in the midgut of the diamondback moth, Plutella xylostella

被引：40
|
作者：
Lin, Junhan [1 ,2 ,3 ,4 ,5 ,6 ]
Yu, Xiao-Qiang [1 ,2 ,3 ,6 ,7 ]
Wang, Qian [1 ,2 ,3 ,5 ,6 ]
Tao, Xinping [1 ,2 ,3 ,5 ,6 ]
Li, Jinyang [1 ,2 ,3 ,5 ,6 ]
Zhang, Shanshan [1 ,2 ,3 ,5 ,6 ]
Xia, Xiaofeng [1 ,2 ,3 ,5 ,6 ]
You, Minsheng [1 ,2 ,3 ,5 ,6 ]
机构：
[1] Fujian Agr & Forestry Univ, State Key Lab Ecol Pest Control Fujian Taiwan Cro, Fuzhou, Peoples R China
[2] Fujian Agr & Forestry Univ, Coll Life Sci, Fuzhou, Peoples R China
[3] Fujian Agr & Forestry Univ, Inst Appl Ecol, Fuzhou, Peoples R China
[4] Fujian Vocat Coll Bioengn, Fuzhou, Peoples R China
[5] Minist Educ, Joint Int Res Lab Ecol Pest Control, Fuzhou, Peoples R China
[6] Minist Agr, Key Lab Integrated Pest Management Fujian Taiwan, Fuzhou, Peoples R China
[7] South China Normal Univ, Inst Insect Sci & Technol, Guangzhou, Peoples R China
来源：
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY | 2020年 / 107卷
基金：
中国国家自然科学基金;
关键词：
Bacillus thuringiensis; Diamondback moth; Midgut immune response; Transcriptome; Proteome; Prophenoloxidase cascade; PEPTIDOGLYCAN RECOGNITION PROTEIN; C-TYPE LECTIN; PROPHENOLOXIDASE ACTIVATION; GALLERIA-MELLONELLA; MANDUCA-SEXTA; INNATE IMMUNITY; MOLECULAR CHARACTERIZATION; DOMAIN PROTEINS; COTTON BOLLWORM; BOMBYX-MORI;
D O I：
10.1016/j.dci.2020.103661
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
The diamondback moth, Plutella xylostella, is the first insect to develop resistance to Bacillus thuringiensis (Bt) in the field. To date, little is known about the molecular mechanism of the interaction between Bt and midgut immunity in P. xylostella. Here, we report immune responses in the P. xylostella midgut to Bt strain Bt8010 using a combined approach of transcriptomics and quantitative proteomics. Many genes in the Toll, IMD, JNK and JAK-STAT pathways and antimicrobial peptide genes were activated at 18 h post-infection. In the prophenoloxidase (PPO) cascade, four serpin genes were activated, and the PPO1 gene was suppressed by Bt8010. Inhibition of the two PPO proteins was observed at 18 h post-infection. Feeding Bt8010-infected larvae recombinant PPOs enhanced their survival. These results revealed that the Toll, IMD, JNK and JAK-STAT pathways were triggered and participated in the immune defence of the midgut against Bt8010, while the PPO cascade was inhibited and played an important role in this process.
引用
收藏
页数：13
相关论文
共 50 条
12345