Gut immunity in Lepidopteran insects |
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Affiliation: | 2. Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA |
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Abstract: | Lepidopteran insects constitute one of the largest fractions of animals on earth, but are considered pests in their relationship with man. Key to the success of this order of insects is its ability to digest food and absorb nutrition, which takes place in the midgut. Because environmental microorganisms can easily enter Lepidopteran guts during feeding, the innate immune response guards against pathogenic bacteria, virus and microsporidia that can be devoured with food. Gut immune responses are complicated by both resident gut microbiota and the surrounding peritrophic membrane and are distinct from immune responses in the body cavity, which depend on the function of the fat body and hemocytes. Due to their relevance to agricultural production, studies of Lepidopteran insect midgut and immunity are receiving more attention, and here we summarize gut structures and functions, and discuss how these confer immunity against different microorganisms. It is expected that increased knowledge of Lepidopteran gut immunity may be utilized for pest biological control in the future. |
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Keywords: | Lepidoptera Gut Bacteria Microsporidia Virus Immunity GNBP" },{" #name" :" keyword" ," $" :{" id" :" kwrd0045" }," $$" :[{" #name" :" text" ," _" :" gram negative bacteria binding protein 20E" },{" #name" :" keyword" ," $" :{" id" :" kwrd0055" }," $$" :[{" #name" :" text" ," _" :" 20-Hydroxyecdysone CPV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0065" }," $$" :[{" #name" :" text" ," _" :" cytoplasmic polyhedrosis virus Bt" },{" #name" :" keyword" ," $" :{" id" :" kwrd0075" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Bacillus thuringiensis CF" },{" #name" :" keyword" ," $" :{" id" :" kwrd0085" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Cytophyaga/Flavobacteria ROS" },{" #name" :" keyword" ," $" :{" id" :" kwrd0095" }," $$" :[{" #name" :" text" ," _" :" reactive oxygen species Imd" },{" #name" :" keyword" ," $" :{" id" :" kwrd0105" }," $$" :[{" #name" :" text" ," _" :" immune deficiency PO" },{" #name" :" keyword" ," $" :{" id" :" kwrd0115" }," $$" :[{" #name" :" text" ," _" :" phenoloxidase DUOX" },{" #name" :" keyword" ," $" :{" id" :" kwrd0125" }," $$" :[{" #name" :" text" ," _" :" dual oxidase NPV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0135" }," $$" :[{" #name" :" text" ," _" :" nucleopolyhedrovirus Bb" },{" #name" :" keyword" ," $" :{" id" :" kwrd0145" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Bacillus bombysepticus DNV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0155" }," $$" :[{" #name" :" text" ," _" :" densovirus ODV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0165" }," $$" :[{" #name" :" text" ," _" :" occlusion derived virus BV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0175" }," $$" :[{" #name" :" text" ," _" :" budded virus JcDNV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0185" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Junonia coenia" },{" #name" :" __text__" ," _" :" densovirus BmDNV-1" },{" #name" :" keyword" ," $" :{" id" :" kwrd0195" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" B. mori" },{" #name" :" __text__" ," _" :" densovirus type 1 DXV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0205" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Drosophila" },{" #name" :" __text__" ," _" :" X virus IE1" },{" #name" :" keyword" ," $" :{" id" :" kwrd0215" }," $$" :[{" #name" :" text" ," _" :" immediate early-1 BmSP-2" },{" #name" :" keyword" ," $" :{" id" :" kwrd0225" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" B. mori" },{" #name" :" __text__" ," _" :" serine protease-2 BmtryP" },{" #name" :" keyword" ," $" :{" id" :" kwrd0235" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" B. mori" },{" #name" :" __text__" ," _" :" alkaline trypsin protein ESI" },{" #name" :" keyword" ," $" :{" id" :" kwrd0245" }," $$" :[{" #name" :" text" ," _" :" electrospray ionization AcMNPV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0255" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Autographa californica" },{" #name" :" __text__" ," _" :" multicapsid nucleopolyhedrovirus CBD" },{" #name" :" keyword" ," $" :{" id" :" kwrd0265" }," $$" :[{" #name" :" text" ," _" :" chitin binding domains PMP" },{" #name" :" keyword" ," $" :{" id" :" kwrd0275" }," $$" :[{" #name" :" text" ," _" :" peritrophic membrane proteins TnGV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0285" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Trichoplusia ni" },{" #name" :" __text__" ," _" :" granulosis virus XcGV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0295" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Xestia c-nigrum" },{" #name" :" __text__" ," _" :" granulovirus ChiA" },{" #name" :" keyword" ," $" :{" id" :" kwrd0305" }," $$" :[{" #name" :" text" ," _" :" chitinase A PPO" },{" #name" :" keyword" ," $" :{" id" :" kwrd0315" }," $$" :[{" #name" :" text" ," _" :" prophenoloxidase AMP" },{" #name" :" keyword" ," $" :{" id" :" kwrd0325" }," $$" :[{" #name" :" text" ," _" :" antibacterial peptides |
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