Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role

21 pages, 7 figures, 2 tables, supplementary information https://doi.org/10.1186/s40850-022-00108-x.-- Data are available from the corresponding author upon reasonable request

Bibliographic Details
Authors: Castejón, Diego, Rotllant, Guiomar, Alba-Tercedor, J., Ribes, Enric, Durfort, Mercè, Guerao, Guillermo
Format: article
Status:Published version
Publication Date:2022
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/262311
Online Access:http://hdl.handle.net/10261/262311
Access Level:Open access
Keyword:Larvae
Anterior midgut caeca
Posterior midgut caecum
Macroapocrine secretion
Microapocrine secretion
Endoderm germ layer
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spelling Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential roleCastejón, DiegoRotllant, GuiomarAlba-Tercedor, J.Ribes, EnricDurfort, MercèGuerao, GuillermoLarvaeAnterior midgut caecaPosterior midgut caecumMacroapocrine secretionMicroapocrine secretionEndoderm germ layer21 pages, 7 figures, 2 tables, supplementary information https://doi.org/10.1186/s40850-022-00108-x.-- Data are available from the corresponding author upon reasonable requestBackground. The decapods are a major group of crustaceans that includes shrimps, prawns, crayfishes, lobsters, and crabs. Several studies focused on the study of the digestive system of the decapods, constituted by the oesophagus, stomach, midgut tract, midgut gland, and hindgut. Nevertheless, in the midgut tract there are associated a set of organs called “midgut caeca”, which are among the most controversial and less studied digestive organs of this group. This work used the common spider crab Maja brachydactyla Balss, 1922 as a model to resolve the origin, development, and potential role of the midgut caeca. Such organs were studied in the larvae (zoea I, zoea II, megalopa), first juveniles, and adult phases, being employed traditional and modern techniques: dissection, micro-computed tomography (Micro-CT), and light and electron microscopical analyses (TEM and SEM). Results. The common spider crab has a pair of anterior midgut caeca and a single posterior caecum that originate from the endoderm germ layer: they develop from the midgut tract, and their epithelium is composed by secretory cells while lacking a cuticle lining. The midgut caeca are small buds in the newly hatched larvae, enlarge linearly during the larval development, and then continue growing until became elongated and coiled blind-tubules in adults. The adult midgut caeca are internally folded to increase their inner surface. The electron microscopy observations showed that the midgut caeca are highly active organs with important macroapocrine and microapocrine secretory activity. Our results suggest that the role of the caeca might be related to the digestive enzyme secretion. The secretory activity should increase as the animal grows in size. Conclusion. The present study resolves the embryonic origin of the midgut caeca (endoderm derived organs), development (general lengthening starting from small buds), and role (active secretory organs). The secretory activity of the midgut caeca should be incorporated in the current models of the digestive physiology in different decapod taxaG.G.: INIA Project (grant number RTA2011-00004-00-00) funded by Ministerio de Economía y Competitividad (Spanish Ministry of Economy and Competitiveness). D.C.: FPI-INIA fellowship (INIA Project RTA2011-00004-00-00) funded by Ministerio de Economía y Competitividad (Spanish Ministry of Economy and Competitiveness)With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S)Peer reviewedBioMed CentralMinisterio de Economía y Competitividad (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/262311reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1186/s40850-022-00108-xSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2623112026-05-22T06:33:51Z
dc.title.none.fl_str_mv Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
title Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
spellingShingle Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
Castejón, Diego
Larvae
Anterior midgut caeca
Posterior midgut caecum
Macroapocrine secretion
Microapocrine secretion
Endoderm germ layer
title_short Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
title_full Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
title_fullStr Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
title_full_unstemmed Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
title_sort Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): origin, development and potential role
dc.creator.none.fl_str_mv Castejón, Diego
Rotllant, Guiomar
Alba-Tercedor, J.
Ribes, Enric
Durfort, Mercè
Guerao, Guillermo
author Castejón, Diego
author_facet Castejón, Diego
Rotllant, Guiomar
Alba-Tercedor, J.
Ribes, Enric
Durfort, Mercè
Guerao, Guillermo
author_role author
author2 Rotllant, Guiomar
Alba-Tercedor, J.
Ribes, Enric
Durfort, Mercè
Guerao, Guillermo
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Larvae
Anterior midgut caeca
Posterior midgut caecum
Macroapocrine secretion
Microapocrine secretion
Endoderm germ layer
topic Larvae
Anterior midgut caeca
Posterior midgut caecum
Macroapocrine secretion
Microapocrine secretion
Endoderm germ layer
description 21 pages, 7 figures, 2 tables, supplementary information https://doi.org/10.1186/s40850-022-00108-x.-- Data are available from the corresponding author upon reasonable request
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/262311
url http://hdl.handle.net/10261/262311
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1186/s40850-022-00108-x
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv BioMed Central
publisher.none.fl_str_mv BioMed Central
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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