Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.jbr.gr/papers20112/16-Nagamoto%20et%20al.pdf http://hdl.handle.net/11449/17301 |
Resumo: | Leaf-cutting ants (Hymenoptera, Formicidae) use fresh leaf fragments to cultivate a symbiotic fungus (Basidiomycota, Agaricales) as their food source. There are three hypothetical propositions for the degree of cellulose degradation capacity of this symbiont: (i) that it is high, rendering this polymer an important energy source, as originally purposed by Martin and Weber; (ii) that it is very small, and only facilitates the symbiont to use other cell nutrients and, (iii) that this fungus is metabolically inept against this polymer. The two latter proposals are more recent than the first one but are based on in vitro or highly indirect evidence. Consequently, we carried out a new evaluation of the degradation capability of this fungus, utilizing as realistic an approach as possible by assessing the microscopic effect of fungus cultivation on the leaf anatomy of the grass Paspalum notatum within colonies of the grass-cutting ant Atta capiguara. We observed a complete degradation of the most abundant leaf cells (the non-lignified ones). on the other hand, since lignin-rich structures presented only slight damage, the leaf format was maintained. Therefore, this in vivo study corroborates Martin and Weber's hypothetical proposition: that cellulose is highly degraded by the leaf-cutting ant symbiont, thus serving as an important energy source. |
id |
UNSP_78af7e78f7906a58445fd84eff516868 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/17301 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting antsleaf-cutting antAttinileaf anatomyplant cell wallLeaf-cutting ants (Hymenoptera, Formicidae) use fresh leaf fragments to cultivate a symbiotic fungus (Basidiomycota, Agaricales) as their food source. There are three hypothetical propositions for the degree of cellulose degradation capacity of this symbiont: (i) that it is high, rendering this polymer an important energy source, as originally purposed by Martin and Weber; (ii) that it is very small, and only facilitates the symbiont to use other cell nutrients and, (iii) that this fungus is metabolically inept against this polymer. The two latter proposals are more recent than the first one but are based on in vitro or highly indirect evidence. Consequently, we carried out a new evaluation of the degradation capability of this fungus, utilizing as realistic an approach as possible by assessing the microscopic effect of fungus cultivation on the leaf anatomy of the grass Paspalum notatum within colonies of the grass-cutting ant Atta capiguara. We observed a complete degradation of the most abundant leaf cells (the non-lignified ones). on the other hand, since lignin-rich structures presented only slight damage, the leaf format was maintained. Therefore, this in vivo study corroborates Martin and Weber's hypothetical proposition: that cellulose is highly degraded by the leaf-cutting ant symbiont, thus serving as an important energy source.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNESP Univ Estadual Paulista, Fac Ciencias Agron, Depto Prod Vegetal, Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Inst Biociencias, Depto Zool, Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Inst Biociencias, Depto Bot, Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Fac Ciencias Agron, Depto Prod Vegetal, Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Inst Biociencias, Depto Zool, Botucatu, SP, BrazilUNESP Univ Estadual Paulista, Inst Biociencias, Depto Bot, Botucatu, SP, BrazilCNPq: 1440272/2001-1CNPq: 304894/2006-0Aristotle Univ ThessalonikiUniversidade Estadual Paulista (Unesp)Nagamoto, Nilson S. [UNESP]Garcia, Marise G. [UNESP]Forti, Luiz Carlos [UNESP]Verza, Sandra S. [UNESP]Noronha, Newton C. [UNESP]Rodella, Roberto A. [UNESP]2014-05-20T13:48:36Z2014-05-20T13:48:36Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article308-312application/pdfhttp://www.jbr.gr/papers20112/16-Nagamoto%20et%20al.pdfJournal of Biological Research-thessaloniki. Thessaloniki: Aristotle Univ Thessaloniki, v. 16, p. 308-312, 2011.1790-045Xhttp://hdl.handle.net/11449/17301WOS:000294140300016WOS000294140300016.pdf6187684824965648Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Biological Research-thessalonikiinfo:eu-repo/semantics/openAccess2024-04-30T15:57:40Zoai:repositorio.unesp.br:11449/17301Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:37:56.850549Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
title |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
spellingShingle |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants Nagamoto, Nilson S. [UNESP] leaf-cutting ant Attini leaf anatomy plant cell wall |
title_short |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
title_full |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
title_fullStr |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
title_full_unstemmed |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
title_sort |
Microscopic evidence supports the hypothesis of high cellulose degradation capacity by the symbiotic fungus of leaf-cutting ants |
author |
Nagamoto, Nilson S. [UNESP] |
author_facet |
Nagamoto, Nilson S. [UNESP] Garcia, Marise G. [UNESP] Forti, Luiz Carlos [UNESP] Verza, Sandra S. [UNESP] Noronha, Newton C. [UNESP] Rodella, Roberto A. [UNESP] |
author_role |
author |
author2 |
Garcia, Marise G. [UNESP] Forti, Luiz Carlos [UNESP] Verza, Sandra S. [UNESP] Noronha, Newton C. [UNESP] Rodella, Roberto A. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Nagamoto, Nilson S. [UNESP] Garcia, Marise G. [UNESP] Forti, Luiz Carlos [UNESP] Verza, Sandra S. [UNESP] Noronha, Newton C. [UNESP] Rodella, Roberto A. [UNESP] |
dc.subject.por.fl_str_mv |
leaf-cutting ant Attini leaf anatomy plant cell wall |
topic |
leaf-cutting ant Attini leaf anatomy plant cell wall |
description |
Leaf-cutting ants (Hymenoptera, Formicidae) use fresh leaf fragments to cultivate a symbiotic fungus (Basidiomycota, Agaricales) as their food source. There are three hypothetical propositions for the degree of cellulose degradation capacity of this symbiont: (i) that it is high, rendering this polymer an important energy source, as originally purposed by Martin and Weber; (ii) that it is very small, and only facilitates the symbiont to use other cell nutrients and, (iii) that this fungus is metabolically inept against this polymer. The two latter proposals are more recent than the first one but are based on in vitro or highly indirect evidence. Consequently, we carried out a new evaluation of the degradation capability of this fungus, utilizing as realistic an approach as possible by assessing the microscopic effect of fungus cultivation on the leaf anatomy of the grass Paspalum notatum within colonies of the grass-cutting ant Atta capiguara. We observed a complete degradation of the most abundant leaf cells (the non-lignified ones). on the other hand, since lignin-rich structures presented only slight damage, the leaf format was maintained. Therefore, this in vivo study corroborates Martin and Weber's hypothetical proposition: that cellulose is highly degraded by the leaf-cutting ant symbiont, thus serving as an important energy source. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2014-05-20T13:48:36Z 2014-05-20T13:48:36Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.jbr.gr/papers20112/16-Nagamoto%20et%20al.pdf Journal of Biological Research-thessaloniki. Thessaloniki: Aristotle Univ Thessaloniki, v. 16, p. 308-312, 2011. 1790-045X http://hdl.handle.net/11449/17301 WOS:000294140300016 WOS000294140300016.pdf 6187684824965648 |
url |
http://www.jbr.gr/papers20112/16-Nagamoto%20et%20al.pdf http://hdl.handle.net/11449/17301 |
identifier_str_mv |
Journal of Biological Research-thessaloniki. Thessaloniki: Aristotle Univ Thessaloniki, v. 16, p. 308-312, 2011. 1790-045X WOS:000294140300016 WOS000294140300016.pdf 6187684824965648 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Biological Research-thessaloniki |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
308-312 application/pdf |
dc.publisher.none.fl_str_mv |
Aristotle Univ Thessaloniki |
publisher.none.fl_str_mv |
Aristotle Univ Thessaloniki |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129098412720128 |