Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus

Abstract Insects alter their walking pattern in order to respond to demands of an ever-changing environment, such as varying ground surface textures. They also exhibit resilient and flexible ability to retain the capacity to walk even after substantial changes in their body properties, e.g. leg ampu...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dai Owaki, Hitoshi Aonuma, Yasuhiro Sugimoto, Akio Ishiguro
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/60cd20379596412290086db54d1cea2b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:60cd20379596412290086db54d1cea2b
record_format	dspace
spelling	oai:doaj.org-article:60cd20379596412290086db54d1cea2b2021-12-02T15:23:04ZLeg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus10.1038/s41598-020-79319-62045-2322https://doaj.org/article/60cd20379596412290086db54d1cea2b2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79319-6https://doaj.org/toc/2045-2322Abstract Insects alter their walking pattern in order to respond to demands of an ever-changing environment, such as varying ground surface textures. They also exhibit resilient and flexible ability to retain the capacity to walk even after substantial changes in their body properties, e.g. leg amputation. While the motor control paradigm governing the inter-leg coordination in such adaptive walking has been extensively described in past studies, the mechanism remains unknown. Here, we examined this question by using the cricket (Gryllus bimaculatus), which shows a tetrapod/tripod gait on a flat surfaces, like many other insects. We performed leg amputation experiments to investigate modifications of leg movements and coordination of muscle activities. We simultaneously recorded (1) the leg movements, locomotion velocity, and body rotation and (2) the leg movements and leg muscles activities before and after leg amputation. Crickets displayed adaptive coordination of leg movement patterns in response to amputations. The activation timings of levator muscles in both middle legs tended to synchronize in phase when both legs were amputated at the coxatrochanteral joint. This supports the hypothesis that an intrinsic contralateral connection within the mesothoracic ganglion exists, and that mechanosensory feedback from the legs override this connection, resulting in the anti-phase movement of a normal gait.Dai OwakiHitoshi AonumaYasuhiro SugimotoAkio IshiguroNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dai Owaki Hitoshi Aonuma Yasuhiro Sugimoto Akio Ishiguro Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus
description	Abstract Insects alter their walking pattern in order to respond to demands of an ever-changing environment, such as varying ground surface textures. They also exhibit resilient and flexible ability to retain the capacity to walk even after substantial changes in their body properties, e.g. leg amputation. While the motor control paradigm governing the inter-leg coordination in such adaptive walking has been extensively described in past studies, the mechanism remains unknown. Here, we examined this question by using the cricket (Gryllus bimaculatus), which shows a tetrapod/tripod gait on a flat surfaces, like many other insects. We performed leg amputation experiments to investigate modifications of leg movements and coordination of muscle activities. We simultaneously recorded (1) the leg movements, locomotion velocity, and body rotation and (2) the leg movements and leg muscles activities before and after leg amputation. Crickets displayed adaptive coordination of leg movement patterns in response to amputations. The activation timings of levator muscles in both middle legs tended to synchronize in phase when both legs were amputated at the coxatrochanteral joint. This supports the hypothesis that an intrinsic contralateral connection within the mesothoracic ganglion exists, and that mechanosensory feedback from the legs override this connection, resulting in the anti-phase movement of a normal gait.
format	article
author	Dai Owaki Hitoshi Aonuma Yasuhiro Sugimoto Akio Ishiguro
author_facet	Dai Owaki Hitoshi Aonuma Yasuhiro Sugimoto Akio Ishiguro
author_sort	Dai Owaki
title	Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus
title_short	Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus
title_full	Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus
title_fullStr	Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus
title_full_unstemmed	Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus
title_sort	leg amputation modifies coordinated activation of the middle leg muscles in the cricket gryllus bimaculatus
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/60cd20379596412290086db54d1cea2b
work_keys_str_mv	AT daiowaki legamputationmodifiescoordinatedactivationofthemiddlelegmusclesinthecricketgryllusbimaculatus AT hitoshiaonuma legamputationmodifiescoordinatedactivationofthemiddlelegmusclesinthecricketgryllusbimaculatus AT yasuhirosugimoto legamputationmodifiescoordinatedactivationofthemiddlelegmusclesinthecricketgryllusbimaculatus AT akioishiguro legamputationmodifiescoordinatedactivationofthemiddlelegmusclesinthecricketgryllusbimaculatus
_version_	1718387327701614592

Leg amputation modifies coordinated activation of the middle leg muscles in the cricket Gryllus bimaculatus

Ejemplares similares