Testosterone, progesterone, and FSH levels in Pimpla turionellae L. (Hymenoptera: Ichneumonidae) and its host Galleria mellonella L. (Lepidoptera: Pyralidae)

Authors : Fevzi UÇKAN, Deniz ÇEVİRGEN, Aylin ER

Pages : 792-797

View : 16 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Various vertebrate-type steroid and gonadotropin hormones have been identified in invertebrates, including insects; however, studies in this area are not sufficient to presume a generalized role for these hormones. We identified testosterone, progesterone, and follicle-stimulating hormone insert ignore into journalissuearticles values(FSH); in the whole-body homogenates of Galleria mellonella L. insert ignore into journalissuearticles values(Lepidoptera: Pyralidae); and its parasitoid Pimpla turionellae L. insert ignore into journalissuearticles values(Hymenoptera: Ichneumonidae);. Testosterone concentration significantly decreased from early instars to last instars and pupal stages of G. mellonella; however, no significant difference was observed in progesterone levels at different stages. FSH concentration reached the highest level at the pupal stage of G. mellonella. No significant difference was observed in testosterone, progesterone, and FSH concentrations in young and mature adults of the parasitoid P. turionellae for both sexes. We also monitored the changes in testosterone, progesterone, and FSH levels over 2, 6, and 24 h in parasitized G. mellonella pupae. During the experimental periods no significant difference in hormone levels was found between controls and parasitized G. mellonella pupae.
Keywords : Key words Testosterone, progesterone, FSH, Pimpla turionellae, Galleria mellonella, chemiluminescent immunoassay