Cathepsin D-Like Aspartic Proteinase Occurring in a Maize Weevil,Sitophilus zeamais, as a Candidate Digestive Enzyme | Zendy

Ichiro Matsumoto | Zendy; Tomiko Asakura | Zendy; Toshiaki Ohmori | Zendy; Tomoko Tamura | Zendy; Keiko Abe | Zendy

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Cathepsin D-Like Aspartic Proteinase Occurring in a Maize Weevil,Sitophilus zeamais, as a Candidate Digestive Enzyme

Author(s) -

Ichiro Matsumoto,

Tomiko Asakura,

Toshiaki Ohmori,

Tomoko Tamura,

Keiko Abe

Publication year - 2009

Publication title -

bioscience biotechnology and biochemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.509

H-Index - 116

eISSN - 1347-6947

pISSN - 0916-8451

DOI - 10.1271/bbb.90372

Subject(s) - sitophilus , foregut , maize weevil , midgut , biology , curculionidae , enzyme , pest analysis , pepstatin , cathepsin l , botany , cathepsin , agronomy , biochemistry , larva , anatomy , protease

The maize weevil, Sitophilus zeamais, is an insect pest infesting rice and corn seeds. We identified an aspartic proteinase (AP) digesting rice glutelin in the alimentary tract of S. zeamais. The mRNA encoding the AP (SAP1) was expressed in the larvae foregut and in the adult midgut. These results indicate that SAP1 is probably digestive enzyme of S. zeamais.

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