Conductivity of the phloem in mango (Mangifera indica L.)

Mango (Mangifera indica L., Anacardiaceae), the fifth most consumed fruit worldwide, is one of the most important fruit crops in tropical regions, but its vascular anatomy is quite unexplored. Previous studies examined the xylem structure in the stems of mango, but the anatomy of the phloem has rema...

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Detalhes bibliográficos
Autores: Barceló-Anguiano, Miguel, Hormaza, José I, Losada, Juan M
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/374717
Acesso em linha:http://hdl.handle.net/10261/374717
https://api.elsevier.com/content/abstract/scopus_id/85109133689
Access Level:acceso abierto
Palavra-chave:phloem in mango
Conductivity
Mangifera indica L
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spelling Conductivity of the phloem in mango (Mangifera indica L.)Barceló-Anguiano, MiguelHormaza, José ILosada, Juan Mphloem in mangoConductivityMangifera indica LMango (Mangifera indica L., Anacardiaceae), the fifth most consumed fruit worldwide, is one of the most important fruit crops in tropical regions, but its vascular anatomy is quite unexplored. Previous studies examined the xylem structure in the stems of mango, but the anatomy of the phloem has remained elusive, leaving the long-distance transport of photoassimilates understudied. We combined fluorescence and electron microscopy to evaluate the structure of the phloem tissue in the tapering branches of mango trees, and used this information to describe the hydraulic conductivity of its sieve tube elements following current models of fluid transport in trees. We revealed that the anatomy of the phloem changes from current year branches, where it was protected by pericyclic fibres, to older ones, where the lack of fibres was concomitant with laticiferous canals embedded in the phloem tissue. Callose was present in the sieve plates, but also in the walls of the phloem sieve cells, making them discernible from other phloem cells. A scaling geometry of the sieve tube elements-including the number of sieve areas and the pore size across tapering branches-resulted in an exponential conductivity towards the base of the tree. These evaluations in mango fit with previous measurements of the phloem architecture in the stems of forest trees, suggesting that, despite agronomic management, the phloem sieve cells scale with the tapering branches. The pipe model theory applied to the continuous tubing system of the phloem appears as a good approach to understand the hydraulic transport of photoassimilates in fruit trees.M.B.-A. was financed by a JAE-ICU scholarship from CSIC. J.M.L. was financed by a ComFuturo Project from the FGCSIC, a RTI 100-900-0000 Project from the Spanish Ministry of Science and Innovation, and a LINKB20067 project from CSIC. J.I.H. was supported by the ‘Ministerio de Ciencia e Innovación’—European Regional Development Fund, European Union (PID-2019-109566RB-100), Junta de Andalucía (P18-RT-3272)Peer reviewedOxford University PressMinisterio de Ciencia e Innovación (España)Junta de Andalucía0000-0001-5449-74440000-0002-7966-5018Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/374717https://api.elsevier.com/content/abstract/scopus_id/85109133689reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109566RB-I00Horticulture researchhttps://doi.org/10.1038/s41438-021-00584-1Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3747172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Conductivity of the phloem in mango (Mangifera indica L.)
title Conductivity of the phloem in mango (Mangifera indica L.)
spellingShingle Conductivity of the phloem in mango (Mangifera indica L.)
Barceló-Anguiano, Miguel
phloem in mango
Conductivity
Mangifera indica L
title_short Conductivity of the phloem in mango (Mangifera indica L.)
title_full Conductivity of the phloem in mango (Mangifera indica L.)
title_fullStr Conductivity of the phloem in mango (Mangifera indica L.)
title_full_unstemmed Conductivity of the phloem in mango (Mangifera indica L.)
title_sort Conductivity of the phloem in mango (Mangifera indica L.)
dc.creator.none.fl_str_mv Barceló-Anguiano, Miguel
Hormaza, José I
Losada, Juan M
author Barceló-Anguiano, Miguel
author_facet Barceló-Anguiano, Miguel
Hormaza, José I
Losada, Juan M
author_role author
author2 Hormaza, José I
Losada, Juan M
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Junta de Andalucía
0000-0001-5449-7444
0000-0002-7966-5018
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv phloem in mango
Conductivity
Mangifera indica L
topic phloem in mango
Conductivity
Mangifera indica L
description Mango (Mangifera indica L., Anacardiaceae), the fifth most consumed fruit worldwide, is one of the most important fruit crops in tropical regions, but its vascular anatomy is quite unexplored. Previous studies examined the xylem structure in the stems of mango, but the anatomy of the phloem has remained elusive, leaving the long-distance transport of photoassimilates understudied. We combined fluorescence and electron microscopy to evaluate the structure of the phloem tissue in the tapering branches of mango trees, and used this information to describe the hydraulic conductivity of its sieve tube elements following current models of fluid transport in trees. We revealed that the anatomy of the phloem changes from current year branches, where it was protected by pericyclic fibres, to older ones, where the lack of fibres was concomitant with laticiferous canals embedded in the phloem tissue. Callose was present in the sieve plates, but also in the walls of the phloem sieve cells, making them discernible from other phloem cells. A scaling geometry of the sieve tube elements-including the number of sieve areas and the pore size across tapering branches-resulted in an exponential conductivity towards the base of the tree. These evaluations in mango fit with previous measurements of the phloem architecture in the stems of forest trees, suggesting that, despite agronomic management, the phloem sieve cells scale with the tapering branches. The pipe model theory applied to the continuous tubing system of the phloem appears as a good approach to understand the hydraulic transport of photoassimilates in fruit trees.
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/374717
https://api.elsevier.com/content/abstract/scopus_id/85109133689
url http://hdl.handle.net/10261/374717
https://api.elsevier.com/content/abstract/scopus_id/85109133689
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109566RB-I00
Horticulture research
https://doi.org/10.1038/s41438-021-00584-1
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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