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1 July 1997 Evidence for the existence of juvenile hormone synthesized by the synganglion of Haemaphysalis longicornis (Acari: Ixodidae)
Jingze Liu, Zaijie Jiang, Chihming Yin, Baixiang Zou, Ruyong Sun, Xuechen Guan
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Abstract

The products synthesized by the synganglion of Haemaphysalis longicornis were studied in vitro by tissue incubation, thin-layer-chromatography (TLC) and radiochemical assay. The results suggested that the synganglion produced radioisotope-labelled substances when incubated in vitro following a radiochemical assay. The 3H radioactivity (3572 dpm) of hexane extract contained 2 synganglia which was about 41 times that (87 dpm) of the control without synganglion. TLC and LSS analysis revealed that the synthesized products comprised two components: one co-chromatography with standard JH III (Rf = 0.81) and the other (Rf = 0.43) not co-chromatography with standard JHB3, JH III and MF. Our results suggested that the synganglion may synthesize JH III and an unknown substance in this tick.

Jingze Liu, Zaijie Jiang, Chihming Yin, Baixiang Zou, Ruyong Sun, and Xuechen Guan "Evidence for the existence of juvenile hormone synthesized by the synganglion of Haemaphysalis longicornis (Acari: Ixodidae)," Systematic and Applied Acarology 2(1), 51-56, (1 July 1997). https://doi.org/10.11158/saa.2.1.6
Accepted: 1 February 1997; Published: 1 July 1997
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