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<p> To determine the involvement of biogenic amines in the reproduction of <i>Apis cerana japonica</i> males, age-related changes in the protein contents of the reproductive organ and the levels of biogenic amines in the abdominal and thoracic ganglia were determined by HPLC-ECD. The protein contents of testis were negatively correlated with age (0–13&#xa0;days old), whereas those of seminal vesicle and mucus gland were positively correlated with age. Dopamine levels in the terminal abdominal ganglion were positively correlated with age. In the thoracic ganglia, tyramine levels were negatively correlated with age, whereas the levels of octopamine and serotonin were positively correlated with age. These results suggest that biogenic amines in abdominal and thoracic ganglia are involved in the age-related development of males in <i>A. cerana japonica</i>.</p>

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Age-related changes of biogenic amines in the abdominal and thoracic ganglia during the sexual maturation in Apis cerana japonica males

  • 期刊论文

  • 发表日期：

    2026年3月27日

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  • Ken Sasaki,
  • Tetsu Yamamoto,
  • Shouhei Ueda

摘要

To determine the involvement of biogenic amines in the reproduction of Apis cerana japonica males, age-related changes in the protein contents of the reproductive organ and the levels of biogenic amines in the abdominal and thoracic ganglia were determined by HPLC-ECD. The protein contents of testis were negatively correlated with age (0–13 days old), whereas those of seminal vesicle and mucus gland were positively correlated with age. Dopamine levels in the terminal abdominal ganglion were positively correlated with age. In the thoracic ganglia, tyramine levels were negatively correlated with age, whereas the levels of octopamine and serotonin were positively correlated with age. These results suggest that biogenic amines in abdominal and thoracic ganglia are involved in the age-related development of males in A. cerana japonica.