Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil)
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/34391 |
Resumo: | Cyanobacteria are photosynthetic prokaryotic organisms that in aquatic environments can compose the phytoplankton and phytobenthos, being important in the primary production of these ecosystems. The objective of this work was to identify the main morphological variations of the cells, filaments and thallus of the cyanobacteria Nostoc sp. LBALBR-2 submitted to ultraviolet radiation (UV-C) in microcosm systems. The cyanobacteria Nostoc sp. was subjected to four treatments: 1- control treatment in nutrient medium; 2- treatment in nutrient medium with exposure to UV-C radiation; 3- control treatment in medium without nutrients and 4- treatment in medium without nutrients with exposure to UV-C radiation. Optical density and chlorophyll-a analyses were performed to determine the growth of Nostoc populations and microscopic analyses to characterize the morphological development of the species. Lack of nutrients generated short trichomes with terminal heterocytes, scattered solitary akinetes and appearance of hormogonia. On nutrient medium the trichomes of Nostoc sp. showed predominantly the vegetative serial form. Cultures exposed to UV-C produced anomalous cells, thick mucilage, fragmented trichomes and hormogonia. It is concluded that Nostoc sp. LBALBR-2 grew well under eutrophication conditions and although it showed cell deformation it was resistant to UV-C radiation. |
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Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil)Efecto de la Radiación Ultravioleta-C sobre la Morfología de la Cianobacteria Nostoc sp. LBALBR-2 Aislado del Embalse de Abastecimiento (Belém, Pará, Brasil)Efeito da Radiação Ultravioleta-C na Morfologia da Cianobactéria Nostoc sp. LBALBR-2 Isolada do Reservatório de Abastecimento (Belém, Pará, Brasil)CianobactériaFloraçãoMicrocosmo.CyanobacteriaBloomMicrocosm.CianobacteriasFloraciónMicrocosmo.Cyanobacteria are photosynthetic prokaryotic organisms that in aquatic environments can compose the phytoplankton and phytobenthos, being important in the primary production of these ecosystems. The objective of this work was to identify the main morphological variations of the cells, filaments and thallus of the cyanobacteria Nostoc sp. LBALBR-2 submitted to ultraviolet radiation (UV-C) in microcosm systems. The cyanobacteria Nostoc sp. was subjected to four treatments: 1- control treatment in nutrient medium; 2- treatment in nutrient medium with exposure to UV-C radiation; 3- control treatment in medium without nutrients and 4- treatment in medium without nutrients with exposure to UV-C radiation. Optical density and chlorophyll-a analyses were performed to determine the growth of Nostoc populations and microscopic analyses to characterize the morphological development of the species. Lack of nutrients generated short trichomes with terminal heterocytes, scattered solitary akinetes and appearance of hormogonia. On nutrient medium the trichomes of Nostoc sp. showed predominantly the vegetative serial form. Cultures exposed to UV-C produced anomalous cells, thick mucilage, fragmented trichomes and hormogonia. It is concluded that Nostoc sp. LBALBR-2 grew well under eutrophication conditions and although it showed cell deformation it was resistant to UV-C radiation.Las cianobacterias son organismos procarióticos fotosintéticos que en el medio acuático pueden componer fitoplancton y fitobentos, presentando importancia en la producción primaria de estos ecosistemas. El objetivo de este trabajo fue identificar las principales variaciones morfológicas de células, filamentos y talos de la cianobacteria Nostoc sp. LBALBR-2 sometido a radiación ultravioleta (UV-C) en sistemas de microcosmos. La cianobacteria Nostoc sp. se sometió a cuatro tratamientos: 1- tratamiento testigo en medio nutritivo; 2- tratamiento en medio nutritivo con exposición a radiación UV-C; 3- tratamiento control en medio sin nutrientes y 4- tratamiento en medio sin nutrientes con exposición a radiación UV-C. Se realizaron análisis de densidad óptica y clorofila-a para determinar el crecimiento de las poblaciones de Nostoc y análisis microscópicos para caracterizar el desarrollo morfológico de la especie. La falta de nutrientes generó tricomas cortos con heterocitos terminales, acinetas solitarias dispersas y aparición de hormonas. En medio nutritivo, los tricomas de Nostoc presentaron predominantemente la forma seriada vegetativa. Los cultivos expuestos a UV-C produjeron células anómalas, mucílago espeso, tricomas fragmentados y hormonas. Se concluye que Nostoc sp. LBALBR-2 se desarrolló bien en condiciones de eutrofización y, a pesar de mostrar deformaciones celulares, fue resistente a la radiación UV-C.As cianobactérias são organismos procarióticos fotossintetizantes que no ambiente aquático podem compor o fitoplâncton e os fitobentos apresentando importância na produção primária destes ecossistemas. O objetivo deste trabalho foi identificar as principais variações morfológicas das células, dos filamentos e talo da cianobactéria Nostoc sp. LBALBR-2 submetida à radiação ultravioleta (UV-C) em sistemas de microcosmos. A cianobactéria Nostoc sp. foi submetida a quatro tratamentos: 1- tratamento controle em meio nutritivo; 2- tratamento em meio nutritivo com exposição à radiação UV-C; 3- tratamento controle em meio sem nutrientes e 4- tratamento em meio sem nutrientes com exposição à radiação UV-C. Foram realizadas análises de densidade óptica e clorofila- a para determinar o crescimento das populações de Nostoc e análises microscópicas para caracterizar o desenvolvimento morfológico da espécie. A falta de nutrientes gerou tricomas curtos com heterócitos terminais, acinetos solitários dispersos e aparecimento de hormogônios. Em meio nutritivo os tricomas de Nostoc apresentaram predominantemente a forma seriada vegetativa. Culturas expostas a UV-C produziram células anômalas, mucilagem espessa, tricomas fragmentados e hormogônios. Conclui-se que Nostoc sp. LBALBR-2 se desenvolveu bem em condições de eutrofização e apesar de apresentar deformações celulares mostrou-se resistente às radiações UV-C.Research, Society and Development2022-09-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3439110.33448/rsd-v11i12.34391Research, Society and Development; Vol. 11 No. 12; e447111234391Research, Society and Development; Vol. 11 Núm. 12; e447111234391Research, Society and Development; v. 11 n. 12; e4471112343912525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/34391/29255Copyright (c) 2022 Eliane Brabo de Sousa; Aline Lemos Gomes ; Celly Jenniffer da Silva Cunha; Paola Vitória Brito Pires; Lisbethe Melo Sckyr Ahndrew; Vanessa Bandeira da Costa-Tavareshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSousa, Eliane Brabo de Gomes , Aline Lemos Cunha, Celly Jenniffer da Silva Pires, Paola Vitória Brito Ahndrew, Lisbethe Melo Sckyr Costa-Tavares, Vanessa Bandeira da 2022-09-26T11:56:08Zoai:ojs.pkp.sfu.ca:article/34391Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:49:42.506477Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) Efecto de la Radiación Ultravioleta-C sobre la Morfología de la Cianobacteria Nostoc sp. LBALBR-2 Aislado del Embalse de Abastecimiento (Belém, Pará, Brasil) Efeito da Radiação Ultravioleta-C na Morfologia da Cianobactéria Nostoc sp. LBALBR-2 Isolada do Reservatório de Abastecimento (Belém, Pará, Brasil) |
title |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) |
spellingShingle |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) Sousa, Eliane Brabo de Cianobactéria Floração Microcosmo. Cyanobacteria Bloom Microcosm. Cianobacterias Floración Microcosmo. |
title_short |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) |
title_full |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) |
title_fullStr |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) |
title_full_unstemmed |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) |
title_sort |
Effect of Ultraviolet-C Radiation on the Morphology of Cyanobacteria Nostoc sp. LBALBR-2 Isolated from Supply Reservoir (Belém, Pará, Brazil) |
author |
Sousa, Eliane Brabo de |
author_facet |
Sousa, Eliane Brabo de Gomes , Aline Lemos Cunha, Celly Jenniffer da Silva Pires, Paola Vitória Brito Ahndrew, Lisbethe Melo Sckyr Costa-Tavares, Vanessa Bandeira da |
author_role |
author |
author2 |
Gomes , Aline Lemos Cunha, Celly Jenniffer da Silva Pires, Paola Vitória Brito Ahndrew, Lisbethe Melo Sckyr Costa-Tavares, Vanessa Bandeira da |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Sousa, Eliane Brabo de Gomes , Aline Lemos Cunha, Celly Jenniffer da Silva Pires, Paola Vitória Brito Ahndrew, Lisbethe Melo Sckyr Costa-Tavares, Vanessa Bandeira da |
dc.subject.por.fl_str_mv |
Cianobactéria Floração Microcosmo. Cyanobacteria Bloom Microcosm. Cianobacterias Floración Microcosmo. |
topic |
Cianobactéria Floração Microcosmo. Cyanobacteria Bloom Microcosm. Cianobacterias Floración Microcosmo. |
description |
Cyanobacteria are photosynthetic prokaryotic organisms that in aquatic environments can compose the phytoplankton and phytobenthos, being important in the primary production of these ecosystems. The objective of this work was to identify the main morphological variations of the cells, filaments and thallus of the cyanobacteria Nostoc sp. LBALBR-2 submitted to ultraviolet radiation (UV-C) in microcosm systems. The cyanobacteria Nostoc sp. was subjected to four treatments: 1- control treatment in nutrient medium; 2- treatment in nutrient medium with exposure to UV-C radiation; 3- control treatment in medium without nutrients and 4- treatment in medium without nutrients with exposure to UV-C radiation. Optical density and chlorophyll-a analyses were performed to determine the growth of Nostoc populations and microscopic analyses to characterize the morphological development of the species. Lack of nutrients generated short trichomes with terminal heterocytes, scattered solitary akinetes and appearance of hormogonia. On nutrient medium the trichomes of Nostoc sp. showed predominantly the vegetative serial form. Cultures exposed to UV-C produced anomalous cells, thick mucilage, fragmented trichomes and hormogonia. It is concluded that Nostoc sp. LBALBR-2 grew well under eutrophication conditions and although it showed cell deformation it was resistant to UV-C radiation. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-20 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/34391 10.33448/rsd-v11i12.34391 |
url |
https://rsdjournal.org/index.php/rsd/article/view/34391 |
identifier_str_mv |
10.33448/rsd-v11i12.34391 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/34391/29255 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 11 No. 12; e447111234391 Research, Society and Development; Vol. 11 Núm. 12; e447111234391 Research, Society and Development; v. 11 n. 12; e447111234391 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052797747724288 |