O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil
Ano de defesa: | 2018 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Estadual de Feira de Santana
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Programa de Pós-Graduação: |
Mestrado Acad?mico em Bot?nica
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Departamento: |
DEPARTAMENTO DE CI?NCIAS BIOL?GICAS
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País: |
Brasil
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Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://tede2.uefs.br:8080/handle/tede/1436 |
Resumo: | In aquatic environments, macrophytes contribute as natural substrates that are favorable for the development of desmids. These plants are of great ecological importance and may influence the availability of light, release and assimilation of nutrients to the periphyton. The genus Euastrum is part of the Desmidiaceae family and is characterized mainly by presenting an incision apical U- V shaped. In order to expand the knowledge about Euastrum in the Bahia State, the present study aimed to inventory, describe and illustrate the taxa of the genus associated with the periphyton of three macrophytes (Utricularia foliosa, Cabomba haynesii e Eichhornia azurea), present in the Marimbus of Baiano. The material studied was obtained through bimonthly collections (May/2017 - March/2018). In each sampling period, 10 points were chosen along the floodplain where the three macrophytes co-occurred, totaling 180 sample units. In addition, 60 sample units were collected in the area (April/2011 - February/2012), deposited in the HUEFS collection. Abiotic water variables (temperature, pH, conductivity, total dissolved solids, dissolved oxygen and transparency) were measured during sampling. The collected samples were preserved in Transeau solution and registered in the HUEFS. The material was analyzed in the Phycology?s Lab (UEFS) and Fiocruz (Bahia) and identified through specialized literature. Thirty - six taxa were identified at infraspecific level, 31 species and 21 varieties other than the typical ones of their respective species. Of these, nine constitute novelties for science (Euastrum abruptum var. chapadae, E. bidentatum var. bahianum, E. diamantinum, E. felisbertii, E. fissum var. nordestinum, E. insulare var. pseudoregnellii, E. marimbusense, E. ornatiscrobiculatum e E. praemorsum var. foersteri), one was registered for the first time in Brazil (Euastrum sublobatum var. sumatranum), and five had the extended geographic distribution to the northeastern Brazil (Euastrum ansatum var. concavum, E. fissum var. angustum, E. groenbladii, E. sibiricum e E. sublobatum var. obtusatum). Of the 36 inventoried taxa, 19 were common the three macrophytes, and the highest taxonomic richness was recorded in the periphyton of U. foliosa (33 taxa), followed by C. haynesii (26) e E. azurea (24). The inventoried taxa were grouped into three groups according to the size and ornamentation of the cells: Group I, composed of 25 taxa, all with a size smaller than 50 ?m in length, with three subgroups that differ in relation to ornamentation: A. taxa with central protrusion composed of two or three granules and just above a pair of scrobicles and incision apical V-shaped; B. taxa presenting irregularly arranged granules and scrobicles throughout the semicells face and apical or V-shaped apical incision; C. taxa with little ornate semicell face, usually with a granule or scrobicle and apical incision shallow or smooth; Group II, with four taxa, measuring between 50 - 60 ?m in length and presenting cell wall ornamented by many granules and shallow apical incision; and Group III, with seven taxa, with specimens longer than 60 ?m in length, characterized by the presence of the semicell face decorated with 1-3 supra-istmal inflations or carrying granules and scrobicules. Most of the taxa were recorded under limnological conditions of slightly basic pH, low conductivity and well oxygenated waters. Regarding the frequency of occurrence, most of the taxa were classified in the rare category (22), followed by the unusual one (6), very frequent (5) and frequent (3). We emphasize the importance of conservation actions of the aquatic macrophytes of the Pantanal of Marimbus do Baiano for the preservation of the periphytic biodiversity. Finally, it is suggested the continuation of studies with polyphasic approach, aiming to broaden the knowledge of the desmids of the Pantanal of the Marimbus and also of other areas of Bahia and Brazil. |
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Moura, Carlos Wallace do Nascimento239.937.312-04http://lattes.cnpq.br/4757880477582129058.090.625-63http://lattes.cnpq.br/4337402997308548Costa, Fabiana de Matos2023-07-10T13:54:03Z2018-10-11COSTA, Fabiana de Matos. O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil. 2018. 123 f. Disserta??o (Mestrado Acad?mico em Bot?nica) - Universidade Estadual de Feira de Santana, Feira de Santana. 2018.http://tede2.uefs.br:8080/handle/tede/1436In aquatic environments, macrophytes contribute as natural substrates that are favorable for the development of desmids. These plants are of great ecological importance and may influence the availability of light, release and assimilation of nutrients to the periphyton. The genus Euastrum is part of the Desmidiaceae family and is characterized mainly by presenting an incision apical U- V shaped. In order to expand the knowledge about Euastrum in the Bahia State, the present study aimed to inventory, describe and illustrate the taxa of the genus associated with the periphyton of three macrophytes (Utricularia foliosa, Cabomba haynesii e Eichhornia azurea), present in the Marimbus of Baiano. The material studied was obtained through bimonthly collections (May/2017 - March/2018). In each sampling period, 10 points were chosen along the floodplain where the three macrophytes co-occurred, totaling 180 sample units. In addition, 60 sample units were collected in the area (April/2011 - February/2012), deposited in the HUEFS collection. Abiotic water variables (temperature, pH, conductivity, total dissolved solids, dissolved oxygen and transparency) were measured during sampling. The collected samples were preserved in Transeau solution and registered in the HUEFS. The material was analyzed in the Phycology?s Lab (UEFS) and Fiocruz (Bahia) and identified through specialized literature. Thirty - six taxa were identified at infraspecific level, 31 species and 21 varieties other than the typical ones of their respective species. Of these, nine constitute novelties for science (Euastrum abruptum var. chapadae, E. bidentatum var. bahianum, E. diamantinum, E. felisbertii, E. fissum var. nordestinum, E. insulare var. pseudoregnellii, E. marimbusense, E. ornatiscrobiculatum e E. praemorsum var. foersteri), one was registered for the first time in Brazil (Euastrum sublobatum var. sumatranum), and five had the extended geographic distribution to the northeastern Brazil (Euastrum ansatum var. concavum, E. fissum var. angustum, E. groenbladii, E. sibiricum e E. sublobatum var. obtusatum). Of the 36 inventoried taxa, 19 were common the three macrophytes, and the highest taxonomic richness was recorded in the periphyton of U. foliosa (33 taxa), followed by C. haynesii (26) e E. azurea (24). The inventoried taxa were grouped into three groups according to the size and ornamentation of the cells: Group I, composed of 25 taxa, all with a size smaller than 50 ?m in length, with three subgroups that differ in relation to ornamentation: A. taxa with central protrusion composed of two or three granules and just above a pair of scrobicles and incision apical V-shaped; B. taxa presenting irregularly arranged granules and scrobicles throughout the semicells face and apical or V-shaped apical incision; C. taxa with little ornate semicell face, usually with a granule or scrobicle and apical incision shallow or smooth; Group II, with four taxa, measuring between 50 - 60 ?m in length and presenting cell wall ornamented by many granules and shallow apical incision; and Group III, with seven taxa, with specimens longer than 60 ?m in length, characterized by the presence of the semicell face decorated with 1-3 supra-istmal inflations or carrying granules and scrobicules. Most of the taxa were recorded under limnological conditions of slightly basic pH, low conductivity and well oxygenated waters. Regarding the frequency of occurrence, most of the taxa were classified in the rare category (22), followed by the unusual one (6), very frequent (5) and frequent (3). We emphasize the importance of conservation actions of the aquatic macrophytes of the Pantanal of Marimbus do Baiano for the preservation of the periphytic biodiversity. Finally, it is suggested the continuation of studies with polyphasic approach, aiming to broaden the knowledge of the desmids of the Pantanal of the Marimbus and also of other areas of Bahia and Brazil.Em ambientes aqu?ticos, as macr?fitas funcionam como substratos naturais prop?cios para o desenvolvimento de desm?dias. Essas plantas possuem uma grande import?ncia ecol?gica, podendo influenciar na disponibilidade de luz, libera??o e assimila??o de nutrientes para o perif?ton. O g?nero Euastrum faz parte da fam?lia Desmidiaceae e ? caracterizado principalmente por apresentar uma incis?o apical com formato de U ou V. Visando expandir o conhecimento sobre Euastrum no estado da Bahia, o presente estudo teve como objetivo inventariar, descrever e ilustrar os t?xons do g?nero associados ao perif?ton de tr?s macr?fitas (Utricularia foliosa, Cabomba haynesii e Eichhornia azurea), presentes no Pantanal dos Marimbus do Baiano. O material estudado foi obtido atrav?s de coletas bimestrais (maio/2017 ? mar?o/2018). Em cada per?odo amostrado foram escolhidos 10 pontos ao longo da plan?cie alagada onde as tr?s macr?fitas co-ocorriam, totalizando 180 unidades amostrais. Al?m dessas, foram analisadas tamb?m 60 unidades amostrais, coletadas na ?rea (abril/2011 ? fevereiro/2012), depositadas na cole??o l?quida do HUEFS. As vari?veis abi?ticas da ?gua (temperatura, pH, condutividade, s?lidos totais dissolvidos, oxig?nio dissolvido e transpar?ncia) foram mensuradas durante as coletas. As amostras coletadas foram preservadas em solu??o de Transeau e tombadas no HUEFS. O material foi analisado no laborat?rio de Ficologia (UEFS) e na Fiocruz (Bahia) e identificado atrav?s de literatura especializada. Foram identificados 36 t?xons a n?vel infraespec?fico, 31 esp?cies e 21 variedades que n?o as t?picas de suas respectivas esp?cies. Dentre estes, nove constituem-se novidades para a ci?ncia (Euastrum abruptum var. chapadae, E. bidentatum var. bahianum, E. diamantinum, E. felisbertii, E. fissum var. nordestinum, E. insulare var. pseudoregnellii, E. marimbusense, E. ornatiscrobiculatum e E. praemorsum var. foersterii), um foi registrado pela primeira vez para o Brasil (Euastrum sublobatum var. sumatranum), e cinco tiveram a distribui??o geogr?fica ampliada para o Nordeste do Brasil (Euastrum ansatum var. concavum, E. fissum var. angustum, E. groenbladii, E. sibiricum e E. sublobatum var. obtusatum). Dos 36 t?xons inventariados, 19 foram comuns as tr?s macr?fitas, sendo que a maior composi??o taxon?mica foi registrada no perif?ton de U. foliosa (33 t?xons), seguida por C. haynesii (26) e E. azurea (24). Os t?xons inventariados foram agrupados em tr?s grupos de acordo o tamanho e ornamenta??o das c?lulas: Grupo I, composto por 25 t?xons, todos com tamanho menor que 50 ?m de comprimento, com tr?s subgrupos que diferem em rela??o ? ornamenta??o: A. t?xons com protrus?o central composta por dois ou tr?s gr?nulos e logo acima um par de escrob?culos e incis?o apical em forma de V; B. t?xons apresentando gr?nulos e escrob?culos dispostos de forma irregular por toda a face das semic?lulas e incis?o apical em forma de V ou rasa; C. t?xons com face pouco ornamentada, geralmente com um gr?nulo ou escrob?culo e incis?o apical rasa ou lisa; Grupo II, com quatro t?xons, medindo entre 50 - 60 ?m de comprimento e apresentando parede celular ornamentada por muitos gr?nulos e incis?o apical rasa; e Grupo III, com sete t?xons, reunindo esp?cimes mais compridos que largos, superior a 60 ?m comprimento, sendo caracterizados por apresentar face da semic?lula decorada com 1-3 infla??es supra-istmais ou portando gr?nulos e escrob?culos. A maioria dos t?xons foi registrada em condi??es limnol?gicas de pH levemente b?sico, baixa condutividade e ?guas bem oxigenadas. Em rela??o ? frequ?ncia de ocorr?ncia, a maioria dos t?xons foram enquadrados na categoria rara (22), seguida pela incomum (6), muito frequente (5) e frequente (3). Salientamos a import?ncia de a??es de conserva??o das macr?fitas aqu?ticas do Pantanal dos Marimbus do Baiano para a preserva??o da biodiversidade perif?tica. Por fim, sugere-se a continuidade de estudos com abordagem polif?sica, visando ampliar o conhecimento da desmidiofl?rula do Pantanal dos Marimbus e tamb?m de outras ?reas da Bahia e Brasil.Submitted by Amanda Ponce (aponce@uefs.br) on 2023-07-10T13:54:03Z No. of bitstreams: 1 2018__Fabiana_Costa__Dissertacao_de_mestrado.pdf: 7051327 bytes, checksum: 432f2fc1c1c50cdaf01e0ebe3cc6469c (MD5)Made available in DSpace on 2023-07-10T13:54:03Z (GMT). No. of bitstreams: 1 2018__Fabiana_Costa__Dissertacao_de_mestrado.pdf: 7051327 bytes, checksum: 432f2fc1c1c50cdaf01e0ebe3cc6469c (MD5) Previous issue date: 2018-10-11Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPESapplication/pdfporUniversidade Estadual de Feira de SantanaMestrado Acad?mico em Bot?nicaUEFSBrasilDEPARTAMENTO DE CI?NCIAS BIOL?GICASConjugatophyceaeDesm?diasMacr?fitasPerif?tonTaxonomiaDesmidsMacrophytesPeriphytonTaxonomyCIENCIAS BIOLOGICAS::BOTANICABOTANICA::BOTANICA APLICADABOTANICA::FISIOLOGIA VEGETALBOTANICA::MORFOLOGIA VEGETALO g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis18799762864545920486006006006006006006005026123383450589282-34061478924143075015925011829319784271-289993050269505198-34975639578375385763590462550136975366info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UEFSinstname:Universidade Estadual de Feira de Santana (UEFS)instacron:UEFSORIGINAL2018__Fabiana_Costa__Dissertacao_de_mestrado.pdf2018__Fabiana_Costa__Dissertacao_de_mestrado.pdfapplication/pdf7051327http://tede2.uefs.br:8080/bitstream/tede/1436/2/2018__Fabiana_Costa__Dissertacao_de_mestrado.pdf432f2fc1c1c50cdaf01e0ebe3cc6469cMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82089http://tede2.uefs.br:8080/bitstream/tede/1436/1/license.txt7b5ba3d2445355f386edab96125d42b7MD51tede/14362023-07-10 10:54:03.325oai:tede2.uefs.br:8080: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Biblioteca Digital de Teses e Dissertaçõeshttp://tede2.uefs.br:8080/PUBhttp://tede2.uefs.br:8080/oai/requestbcuefs@uefs.br|| bcref@uefs.br||bcuefs@uefs.bropendoar:2023-07-10T13:54:03Biblioteca Digital de Teses e Dissertações da UEFS - Universidade Estadual de Feira de Santana (UEFS)false |
dc.title.por.fl_str_mv |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
title |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
spellingShingle |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil Costa, Fabiana de Matos Conjugatophyceae Desm?dias Macr?fitas Perif?ton Taxonomia Desmids Macrophytes Periphyton Taxonomy CIENCIAS BIOLOGICAS::BOTANICA BOTANICA::BOTANICA APLICADA BOTANICA::FISIOLOGIA VEGETAL BOTANICA::MORFOLOGIA VEGETAL |
title_short |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
title_full |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
title_fullStr |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
title_full_unstemmed |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
title_sort |
O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil |
author |
Costa, Fabiana de Matos |
author_facet |
Costa, Fabiana de Matos |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Moura, Carlos Wallace do Nascimento |
dc.contributor.advisor1ID.fl_str_mv |
239.937.312-04 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4757880477582129 |
dc.contributor.authorID.fl_str_mv |
058.090.625-63 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/4337402997308548 |
dc.contributor.author.fl_str_mv |
Costa, Fabiana de Matos |
contributor_str_mv |
Moura, Carlos Wallace do Nascimento |
dc.subject.por.fl_str_mv |
Conjugatophyceae Desm?dias Macr?fitas Perif?ton Taxonomia |
topic |
Conjugatophyceae Desm?dias Macr?fitas Perif?ton Taxonomia Desmids Macrophytes Periphyton Taxonomy CIENCIAS BIOLOGICAS::BOTANICA BOTANICA::BOTANICA APLICADA BOTANICA::FISIOLOGIA VEGETAL BOTANICA::MORFOLOGIA VEGETAL |
dc.subject.eng.fl_str_mv |
Desmids Macrophytes Periphyton Taxonomy |
dc.subject.cnpq.fl_str_mv |
CIENCIAS BIOLOGICAS::BOTANICA BOTANICA::BOTANICA APLICADA BOTANICA::FISIOLOGIA VEGETAL BOTANICA::MORFOLOGIA VEGETAL |
description |
In aquatic environments, macrophytes contribute as natural substrates that are favorable for the development of desmids. These plants are of great ecological importance and may influence the availability of light, release and assimilation of nutrients to the periphyton. The genus Euastrum is part of the Desmidiaceae family and is characterized mainly by presenting an incision apical U- V shaped. In order to expand the knowledge about Euastrum in the Bahia State, the present study aimed to inventory, describe and illustrate the taxa of the genus associated with the periphyton of three macrophytes (Utricularia foliosa, Cabomba haynesii e Eichhornia azurea), present in the Marimbus of Baiano. The material studied was obtained through bimonthly collections (May/2017 - March/2018). In each sampling period, 10 points were chosen along the floodplain where the three macrophytes co-occurred, totaling 180 sample units. In addition, 60 sample units were collected in the area (April/2011 - February/2012), deposited in the HUEFS collection. Abiotic water variables (temperature, pH, conductivity, total dissolved solids, dissolved oxygen and transparency) were measured during sampling. The collected samples were preserved in Transeau solution and registered in the HUEFS. The material was analyzed in the Phycology?s Lab (UEFS) and Fiocruz (Bahia) and identified through specialized literature. Thirty - six taxa were identified at infraspecific level, 31 species and 21 varieties other than the typical ones of their respective species. Of these, nine constitute novelties for science (Euastrum abruptum var. chapadae, E. bidentatum var. bahianum, E. diamantinum, E. felisbertii, E. fissum var. nordestinum, E. insulare var. pseudoregnellii, E. marimbusense, E. ornatiscrobiculatum e E. praemorsum var. foersteri), one was registered for the first time in Brazil (Euastrum sublobatum var. sumatranum), and five had the extended geographic distribution to the northeastern Brazil (Euastrum ansatum var. concavum, E. fissum var. angustum, E. groenbladii, E. sibiricum e E. sublobatum var. obtusatum). Of the 36 inventoried taxa, 19 were common the three macrophytes, and the highest taxonomic richness was recorded in the periphyton of U. foliosa (33 taxa), followed by C. haynesii (26) e E. azurea (24). The inventoried taxa were grouped into three groups according to the size and ornamentation of the cells: Group I, composed of 25 taxa, all with a size smaller than 50 ?m in length, with three subgroups that differ in relation to ornamentation: A. taxa with central protrusion composed of two or three granules and just above a pair of scrobicles and incision apical V-shaped; B. taxa presenting irregularly arranged granules and scrobicles throughout the semicells face and apical or V-shaped apical incision; C. taxa with little ornate semicell face, usually with a granule or scrobicle and apical incision shallow or smooth; Group II, with four taxa, measuring between 50 - 60 ?m in length and presenting cell wall ornamented by many granules and shallow apical incision; and Group III, with seven taxa, with specimens longer than 60 ?m in length, characterized by the presence of the semicell face decorated with 1-3 supra-istmal inflations or carrying granules and scrobicules. Most of the taxa were recorded under limnological conditions of slightly basic pH, low conductivity and well oxygenated waters. Regarding the frequency of occurrence, most of the taxa were classified in the rare category (22), followed by the unusual one (6), very frequent (5) and frequent (3). We emphasize the importance of conservation actions of the aquatic macrophytes of the Pantanal of Marimbus do Baiano for the preservation of the periphytic biodiversity. Finally, it is suggested the continuation of studies with polyphasic approach, aiming to broaden the knowledge of the desmids of the Pantanal of the Marimbus and also of other areas of Bahia and Brazil. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018-10-11 |
dc.date.accessioned.fl_str_mv |
2023-07-10T13:54:03Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
COSTA, Fabiana de Matos. O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil. 2018. 123 f. Disserta??o (Mestrado Acad?mico em Bot?nica) - Universidade Estadual de Feira de Santana, Feira de Santana. 2018. |
dc.identifier.uri.fl_str_mv |
http://tede2.uefs.br:8080/handle/tede/1436 |
identifier_str_mv |
COSTA, Fabiana de Matos. O g?nero Euastrum ehrenberg ex ralfs sensu lato (conjugatophyceae) do pantanal dos Marimbus do Baiano, Chapada Diamantina, Bahia, Brasil. 2018. 123 f. Disserta??o (Mestrado Acad?mico em Bot?nica) - Universidade Estadual de Feira de Santana, Feira de Santana. 2018. |
url |
http://tede2.uefs.br:8080/handle/tede/1436 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
1879976286454592048 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 600 600 |
dc.relation.department.fl_str_mv |
5026123383450589282 |
dc.relation.cnpq.fl_str_mv |
-3406147892414307501 5925011829319784271 -289993050269505198 -3497563957837538576 |
dc.relation.sponsorship.fl_str_mv |
3590462550136975366 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Feira de Santana |
dc.publisher.program.fl_str_mv |
Mestrado Acad?mico em Bot?nica |
dc.publisher.initials.fl_str_mv |
UEFS |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
DEPARTAMENTO DE CI?NCIAS BIOL?GICAS |
publisher.none.fl_str_mv |
Universidade Estadual de Feira de Santana |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da UEFS instname:Universidade Estadual de Feira de Santana (UEFS) instacron:UEFS |
instname_str |
Universidade Estadual de Feira de Santana (UEFS) |
instacron_str |
UEFS |
institution |
UEFS |
reponame_str |
Biblioteca Digital de Teses e Dissertações da UEFS |
collection |
Biblioteca Digital de Teses e Dissertações da UEFS |
bitstream.url.fl_str_mv |
http://tede2.uefs.br:8080/bitstream/tede/1436/2/2018__Fabiana_Costa__Dissertacao_de_mestrado.pdf http://tede2.uefs.br:8080/bitstream/tede/1436/1/license.txt |
bitstream.checksum.fl_str_mv |
432f2fc1c1c50cdaf01e0ebe3cc6469c 7b5ba3d2445355f386edab96125d42b7 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da UEFS - Universidade Estadual de Feira de Santana (UEFS) |
repository.mail.fl_str_mv |
bcuefs@uefs.br|| bcref@uefs.br||bcuefs@uefs.br |
_version_ |
1796793645647527936 |