iScience, Год журнала: 2025, Номер 28(3), С. 111947 - 111947

Опубликована: Фев. 4, 2025

The planarian Dugesia japonica responds differently to localized stimuli: anterior regions turn, middle elongate, and posterior contract. If cut into several pieces, each piece immediately produces the same three responses. Over days, regenerates all transected body parts. This study tested how pieces coordinate behavioral responses during regeneration. We first determined locations of turning/elongation elongation/contraction switches. Immediately, transections moved both switching sites away from so that worm produced as intact worms. During regeneration, progressively closer transection (now regeneration) sites. These results show immediate effects (likely physiological) are coordinated with addition regenerating tissue (anatomical) maintain normal an animal possible. Other animals regenerate parts, such amphibians reptiles, may use similar coordination mechanisms.

Язык: Английский