Abstract:
:The swallowtail butterfly, Papilio xuthus L., feeds exclusively on members of the plant family, Rutaceae. Female butterflies lay eggs in response to specific chemicals contained in their host plants. They perceive a variety of polar compounds as oviposition stimulants through the tarsal chemosensilla of the foreleg by drumming upon the leaf surface. We undertook an expressed sequence tag (EST) analysis to identify the chemosensory-related genes that are expressed in chemosensilla on the tarsus of P. xuthus. Several genes that showed similarity with biotransformation enzymes were identified from the ESTs. Among them, a cytochrome P450 and a glutathione-S-transferase (GST) were preferentially expressed in the chemosensory organs. We have determined the structure of both cDNA and genomic sequences encoding these enzymes and designated the P450 as CYP341A2, a novel member of CYP341A subfamily, and the GST as GST-pxcs1, respectively. We observed a localized expression of CYP341A2 at the base of tarsal chemosensilla by in situ hybridization. These results suggest that these degrading enzymes play a role in the chemosensory reception for host plant recognition.
journal_name
Insect Biochem Mol Bioljournal_title
Insect biochemistry and molecular biologyauthors
Ono H,Ozaki K,Yoshikawa Hdoi
10.1016/j.ibmb.2005.03.013subject
Has Abstractpub_date
2005-08-01 00:00:00pages
837-46issue
8eissn
0965-1748issn
1879-0240pii
S0965-1748(05)00090-1journal_volume
35pub_type
杂志文章abstract::Bacillus thuringiensis subs. israelensis produces at least three Cry toxins (Cry4Aa, Cry4Ba, and Cry11Aa) that are active against Aedes aegypti larvae. Previous work characterized a GPI-anchored alkaline phosphatase (ALP1) as a Cry11Aa binding molecule from the gut of A. aegypti larvae. We show here that Cry4Ba binds ...
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journal_title:Insect biochemistry and molecular biology
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journal_title:Insect biochemistry and molecular biology
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pub_type: 杂志文章,评审
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journal_title:Insect biochemistry and molecular biology
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abstract::One promising method to prevent vector-borne diseases is through the use of transmission blocking vaccines (TBVs). However, developing several anti-pathogen TBVs may be impractical. In this study, we have identified a conserved candidate carbohydrate target in the midguts of several Arthropod vectors. A screen of the ...
journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2004.09.005
更新日期:2005-01-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2004.06.001
更新日期:2004-09-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2003.10.003
更新日期:2004-03-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
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doi:10.1016/j.ibmb.2012.10.011
更新日期:2013-01-01 00:00:00
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doi:10.1016/j.ibmb.2012.01.008
更新日期:2012-05-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2012.04.007
更新日期:2012-09-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2008.06.005
更新日期:2008-10-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章,评审
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更新日期:2001-01-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2014.04.003
更新日期:2014-07-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2015.03.002
更新日期:2015-05-01 00:00:00
abstract::ok mutants of the silkworm, Bombyx mori, exhibit highly translucent larval skin resulting from the inability to incorporate uric acid into the epidermal cells. Here we report the identification of a gene responsible for the ok mutation using positional cloning and RNAi experiments. In two independent ok mutant strains...
journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2013.03.011
更新日期:2013-07-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2009.12.011
更新日期:2010-01-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
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更新日期:1995-06-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2009.03.005
更新日期:2009-07-01 00:00:00
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journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2011.06.005
更新日期:2011-10-01 00:00:00
abstract::We characterize here a cDNA from the ixodid tick Haemaphysalis longicornis, which encodes an asparaginyl endopeptidase, legumain (HlLgm), that was present as a functional molecule in the midgut of this tick. Endogenous HlLgm was detected as a 38-kDa antigen in H. longicornis extracts and was seen throughout all develo...
journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2007.04.010
更新日期:2007-09-01 00:00:00
abstract::Isopentenyl diphosphate isomerase (IPPI) of the spruce budworm, Choristoneura fumiferana, and of the tobacco hornworm, Manduca sexta, was cloned and its catalytic properties assessed. In the presence of Mg(2+) or Mn(2+), the recombinant protein from C. fumiferana (CfIPPI) efficiently isomerized IPP to dimethylallyl di...
journal_title:Insect biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1016/j.ibmb.2012.07.001
更新日期:2012-10-01 00:00:00