Suppressive Impact of 6-Benzyladenine, A Plant Growth Regulator, on the Adult Performance and Reproductive Potential of Galleria mellonella L. (Lepidoptera: Pyralidae)

K. Ghoneim, Hamadah, Kh., A. El-Hela
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引用次数: 1

Abstract

The greater wax moth Galleria mellonella is responsible for serious economic losses to bee keepers in developing countries. Larvae feed on the wax comb in weak colonies or during the storage of wax combs in winter. The objective of the current study was to assess the effect of the Cytokinin plant growth regulator, Benzyladenine (6-BA), on the most important parameters of adult performance and reproductive potential of G. mellonella. The 3rd instar larvae were force-fed on an artificial diet supplemented with six concentrations, viz., 100, 10.0, 1.0, 0.1, 0.01 & 0.001ppm of 6-BA. No adult moths could metamorphose at the higher three concentrations because of larval and pupal deaths. The most important results could be summarized as follows. The adult emergence was blocked by 6-BA, in a dose-dependent course. Also, the tested compound displayed strong adulticidal activity, since adult mortality increased in a dose-dependent course. The total adult longevity of moths was significantly prolonged.All longevity compartments were remarkably prolonged. On the other hand, 6-BA failed to affect adult morphogenesis. The oviposition efficiency was deleteriously prohibited. Also, 6-BA exhibited a tremendous inhibitory effect on the female fecundity and reducing effect onfertility. The embryonic development in eggs laid by treated adult females was severely retarded, since the incubation period of these eggs was remarkably prolonged.
植物生长调节剂6-苄基腺嘌呤对黄粉蚧成虫生长性能和繁殖潜力的抑制作用
大蜡蛾(Galleria mellonella)给发展中国家的养蜂人造成了严重的经济损失。幼虫在脆弱的蜂群中或在冬季蜡梳储存期间以蜡梳为食。本研究的目的是评估细胞分裂素植物生长调节剂苄基腺嘌呤(6-BA)对大棉铃虫成虫性能和生殖潜能最重要参数的影响。饲喂6-BA浓度分别为100、10.0、1.0、0.1、0.01和0.001ppm的人工饲料。在较高的3种浓度下,由于幼虫和蛹的死亡,成虫不发生变态。最重要的结果可以总结如下。6-BA阻断成虫羽化,并呈剂量依赖性。此外,所测试的化合物显示出强烈的杀虫活性,因为成人死亡率呈剂量依赖性增加。蛾类成虫总寿命明显延长。所有的长寿舱都显着延长了。另一方面,6-BA对成虫的形态发生没有影响。产卵效率被有害地禁止。6-BA对雌虫的繁殖力有明显的抑制作用和降低作用。经处理的成年雌虫所产的卵的胚胎发育严重迟缓,因为这些卵的孵化期明显延长。
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