Expressional divergence of insect GOX genes: From specialist to generalist glucose oxidase

Journal of Insect Physiology
Lihong YangXianchun Li

Abstract

Insect herbivores often secrete glucose oxidase (GOX) onto plants to counteract plant defenses and potential pathogens. Whether generalist herbivores always have significantly higher GOX activities than their specialist counterparts at any comparable stage or conditions and how this is realized remain unknown. To address these two general questions, we subjected larvae of a pair of sister species differed mainly in host range, the generalist Helicoverpa armigera and its specialist counterpart Helicoverpa assulta, to the same sets of stage, protein to digestible carbohydrate (P:C) ratio, allelochemical or host plant treatments for simultaneous analyses of GOX transcripts and activities in their labial glands. GOX activity and transcripts are upregulated concurrently with food ingestion and body growth, downregulated with stopping ingestion and wandering for pupation in both species. The three tested host plants upregulated GOX transcripts, and to a lesser extent, GOX activity in both species. There were significant differences in both GOX transcripts and activity elicited by allelochemicals, but only in GOX transcripts by P:C ratios in both species. GOX activities were higher in H. armigera than H. assulta in all the comparable ...Continue Reading

References

Aug 31, 1999·Archives of Insect Biochemistry and Physiology·H EichenseerG W Felton
Apr 12, 2002·Nature·Richard O MusserGary W Felton
Feb 26, 2004·Proceedings of the National Academy of Sciences of the United States of America·Xianchun LiMary A Schuler
Jan 22, 2005·Archives of Insect Biochemistry and Physiology·Michelle Peiffer, Gary W Felton
Jan 22, 2005·Archives of Insect Biochemistry and Physiology·Richard O MusserGary W Felton
Jan 22, 2005·Archives of Insect Biochemistry and Physiology·Richard O MusserGary W Felton
Aug 24, 2006·Annual Review of Entomology·Xianchun LiMay R Berenbaum
Nov 23, 2006·Journal of Insect Science·Magali Merkx-Jacques, Jacqueline C Bede
Nov 13, 2007·Nature·UNKNOWN Drosophila 12 Genomes ConsortiumIain MacCallum
Nov 13, 2007·Journal of Insect Physiology·Branislav BabicJacqueline C Bede
Mar 12, 2008·Applied Microbiology and Biotechnology·Chun Ming WongXiao Dong Chen
May 16, 2008·Archives of Insect Biochemistry and Physiology·Yong-Hong HuChen-Zhu Wang
Sep 1, 2006·Plant Signaling & Behavior·Casey M DelphiaConsuelo M De Moraes
Jul 16, 2010·Journal of Chemical Ecology·Herb EichenseerGary W Felton
Nov 25, 2011·Nature·Miodrag GrbićYves Van de Peer
Mar 7, 2012·Archives of Insect Biochemistry and Physiology·Qingbo TangChen-Zhu Wang
Mar 20, 2012·Trends in Plant Science·Jared G Ali, Anurag A Agrawal

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