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活酵母可以加速Drosophila melanogaster幼虫的成长.

Yanira Jiménez-Padilla1, Babafemi Adewusi1, Marc-André Lachance1

  • 1Department of Biology, University of Western Ontario, London, Ontario N6A 5B7, Canada.

The Journal of experimental biology
|September 5, 2024
PubMed
概括

昆虫肠道中的活酵母通过提供营养和增加食率来加速发育,作为有益的共生体. 这与营养补充剂形成鲜明对比,强调了活酵母相互作用对宿主生长的重要性.

科学领域:

  • 微生物学 微生物学
  • 昆虫生物学 昆虫生物学
  • 同生关系 同生关系.

背景情况:

  • 昆虫肠道拥有多样化的微生物群落,影响宿主生理和行为.
  • 肠道微生物组研究主要集中在细菌上,对酵母菌的关注较少.

研究的目的:

  • 为了研究酵母在Drosophila melanogaster的发展中的作用.
  • 为了确定活酵母是否提供超出简单营养的发展益处.

主要方法:

  • 轴性 (无微生物) 和传统养的Drosophila melanogaster.之间的发育时间的比较.
  • 用特定的酵母物种 (Saccharomyces cerevisiae,Lachancea kluyveri) 接种虫幼虫.
  • 将营养补充剂 (热杀酵母,维生素,氨基酸) 给的.

主要成果:

  • 与天然微生物群 (11.5天) 相比,的发展速度较慢 (13天).
  • 使用活酵母的注射恢复了更快的发育,与具有天然微生物群的相似.
  • 营养补充剂只提供了轻微的发展加速,比活酵母少.
  • 活酵母增加了第三阶段幼虫的食率,这表明肠-大脑轴相互作用.
关键词:
开发时间 开发时间这是一种Gnotobiotic生物.肠道酵母是一种肠道酵母.肠大脑轴 肠大脑轴昆虫的共生体是昆虫的共生体.微生物组是一个微生物组.

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结论:

  • 酵母是活跃的,在昆虫肠道内繁殖共生体.
  • 活酵母显著有利于的发展,不仅仅是一个食物来源.
  • 酵母相互作用涉及复杂的机制,可能由肠-大脑轴介导,提高宿主性能.