Scab formation and wound healing of plant tissue by soldier aphid

Mayako Kutsukake, Harunobu Shibao, Keigo Uematsu, Takema Fukatsu

研究成果: Article査読

26 被引用数 (Scopus)

抄録

In the social aphid Nipponaphis monzeni, a unique gall-repairing behaviour has been known: when a hole is made on the gall, many soldier nymphs discharge body fluid on the breach, which promptly solidifies and plugs the hole. Here, we experimentally investigated the subsequent fate of repaired galls and their inhabitants. Irrespective of natural repair by soldier nymphs or artificial repair with adhesive, repaired galls survived significantly better than non-repaired galls. Within a month after repair, the plant tissue around the hole proliferated and sealed up the hole. Many soldier nymphs were localized at the hole area and extermination of inhabiting aphids by insecticides aborted the gall regeneration, indicating that the gall regeneration requires inhabiting aphids, wherein soldier nymphs are likely to play a major role. This study provides an unprecedented case of scab formation and wound healing, which occurs at an animal-plant interface: scab derived from insect body fluid promptly plugs damaged plant tissue and subsequently the insects actively stimulate regeneration of the plant tissue, whereby the compromised plant tissue recovers. We suggest that the novel system may have evolved in the aphid lineage through enhancement and recruitment of the pre-existing capabilities of haemolymph coagulation and gall formation.

本文言語English
ページ(範囲)1555-1563
ページ数9
ジャーナルProceedings of the Royal Society B: Biological Sciences
276
1662
DOI
出版ステータスPublished - 2009 5月 7
外部発表はい

ASJC Scopus subject areas

  • 生化学、遺伝学、分子生物学一般
  • 免疫学および微生物学一般
  • 環境科学一般
  • 農業および生物科学一般

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