PMID: 12770160May 29, 2003Paper

Juvenile hormone and diapause in the Mediterranean corn borer, Sesamia nonagrioides

Journal of Insect Physiology
Matilde EizaguirreRamon Canela

Abstract

Juvenile hormone content of Sesamia nonagrioides larvae reared under different environmental conditions that induce diapause was studied using a bioassay on newly-emerged Tribolium confusum pupae. Two analytical methods were also used to measure JHIII content. Extracts from larvae that developed under different conditions of photoperiod and temperature caused different effects in T. confusum pupae. This can be related to different diapause intensities. Extracts from diapausing larvae produced a higher juvenilizing effect than the expected, considering their JHIII titer calculated by the chromatographic analysis. This indicates that hormones other than JHIII must be present in extracts of diapausing larvae of S. nonagrioides. The analytical procedures confirm that diapausing larvae have a higher JHIII titer in the haemolymph than non-diapausing larvae. This shows that JH is involved in the maintenance of diapause in this species.

Citations

Jul 6, 2000·Insect Biochemistry and Molecular Biology·T SingtripopS Sakurai
Mar 1, 2011·FEBS Letters·Luca SchiesariRodolfo Costa
Jun 4, 2008·Journal of Insect Physiology·Christa SchafellnerFrantisek Sehnal
Oct 12, 2005·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Marta Anna PolanskaPiotr Bebas
Mar 27, 2009·Insect Molecular Biology·T GkouvitsasA Kourti
Mar 2, 2012·Journal of Agricultural and Food Chemistry·Francisca VilaróMatilde Eizaguirre
Jun 1, 2007·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Anastasios SpiliotopoulosAnna Kourti
Dec 6, 2018·Frontiers in Physiology·Zhen-Juan YinYi-Fan Zhai
Mar 12, 2009·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Theodoros Gkouvitsas, Anna Kourti

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