Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil

Detalhes bibliográficos
Autor(a) principal: Sassi,Cristiane F. Costa
Data de Publicação: 2021
Outros Autores: Farias,Gabriel M. de, Vasconcelos,Amanda de S., Macedo,Rebeca S. de, França,Jéssica P. de S., Sassi,Roberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Iheringia. Série Zoologia
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212021000100207
Resumo: ABSTRACT Histological analysis of bleached samples of Siderastrea stellata Verrill, 1868, with white plague disease and with alteration in the color pattern, revealed drastic tissue and cellular disturbances, such as lysis of the external epithelium, hyperplasia of gastrodermis, apoptosis of epithelial cells and zooxanthellae, and degradation of mesenteric filaments and reproductive cells. Fungal hyphae, diatoms, and cyanobacteria were present in diseased samples and colonies with alteration in the color pattern. Furthermore, bleached and diseased samples showed significant reductions in the number of zooxanthellae per 100 µm2 of gastrodermis and significant reductions in the diameters and volumes of stage V oocytes. We found that bleaching events, diseases, and colonies with alteration in the color pattern promoted degradation of reproductive cells, resulting in the consequent interruption of the reproduction of the coral S. stellata, which is one of the most common Brazilian coral species. The implications of these indirect effects of bleaching, disease, and changes in coral color patterns in the population dynamics of Brazilian reefs are discussed.
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spelling Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of BrazilBrazilian reefscoral diseasescoral bleachinghistopathologycellular disturbancesABSTRACT Histological analysis of bleached samples of Siderastrea stellata Verrill, 1868, with white plague disease and with alteration in the color pattern, revealed drastic tissue and cellular disturbances, such as lysis of the external epithelium, hyperplasia of gastrodermis, apoptosis of epithelial cells and zooxanthellae, and degradation of mesenteric filaments and reproductive cells. Fungal hyphae, diatoms, and cyanobacteria were present in diseased samples and colonies with alteration in the color pattern. Furthermore, bleached and diseased samples showed significant reductions in the number of zooxanthellae per 100 µm2 of gastrodermis and significant reductions in the diameters and volumes of stage V oocytes. We found that bleaching events, diseases, and colonies with alteration in the color pattern promoted degradation of reproductive cells, resulting in the consequent interruption of the reproduction of the coral S. stellata, which is one of the most common Brazilian coral species. The implications of these indirect effects of bleaching, disease, and changes in coral color patterns in the population dynamics of Brazilian reefs are discussed.Museu de Ciências Naturais2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212021000100207Iheringia. Série Zoologia v.111 2021reponame:Iheringia. Série Zoologiainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RS10.1590/1678-4766e2021007info:eu-repo/semantics/openAccessSassi,Cristiane F. CostaFarias,Gabriel M. deVasconcelos,Amanda de S.Macedo,Rebeca S. deFrança,Jéssica P. de S.Sassi,Robertoeng2021-05-12T00:00:00Zoai:scielo:S0073-47212021000100207Revistahttp://www.scielo.br/iszPUBhttps://old.scielo.br/oai/scielo-oai.php||iheringia-zoo@fzb.rs.gov.br1678-47660073-4721opendoar:2021-05-12T00:00Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false
dc.title.none.fl_str_mv Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
title Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
spellingShingle Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
Sassi,Cristiane F. Costa
Brazilian reefs
coral diseases
coral bleaching
histopathology
cellular disturbances
title_short Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
title_full Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
title_fullStr Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
title_full_unstemmed Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
title_sort Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil
author Sassi,Cristiane F. Costa
author_facet Sassi,Cristiane F. Costa
Farias,Gabriel M. de
Vasconcelos,Amanda de S.
Macedo,Rebeca S. de
França,Jéssica P. de S.
Sassi,Roberto
author_role author
author2 Farias,Gabriel M. de
Vasconcelos,Amanda de S.
Macedo,Rebeca S. de
França,Jéssica P. de S.
Sassi,Roberto
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Sassi,Cristiane F. Costa
Farias,Gabriel M. de
Vasconcelos,Amanda de S.
Macedo,Rebeca S. de
França,Jéssica P. de S.
Sassi,Roberto
dc.subject.por.fl_str_mv Brazilian reefs
coral diseases
coral bleaching
histopathology
cellular disturbances
topic Brazilian reefs
coral diseases
coral bleaching
histopathology
cellular disturbances
description ABSTRACT Histological analysis of bleached samples of Siderastrea stellata Verrill, 1868, with white plague disease and with alteration in the color pattern, revealed drastic tissue and cellular disturbances, such as lysis of the external epithelium, hyperplasia of gastrodermis, apoptosis of epithelial cells and zooxanthellae, and degradation of mesenteric filaments and reproductive cells. Fungal hyphae, diatoms, and cyanobacteria were present in diseased samples and colonies with alteration in the color pattern. Furthermore, bleached and diseased samples showed significant reductions in the number of zooxanthellae per 100 µm2 of gastrodermis and significant reductions in the diameters and volumes of stage V oocytes. We found that bleaching events, diseases, and colonies with alteration in the color pattern promoted degradation of reproductive cells, resulting in the consequent interruption of the reproduction of the coral S. stellata, which is one of the most common Brazilian coral species. The implications of these indirect effects of bleaching, disease, and changes in coral color patterns in the population dynamics of Brazilian reefs are discussed.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212021000100207
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212021000100207
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4766e2021007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Museu de Ciências Naturais
publisher.none.fl_str_mv Museu de Ciências Naturais
dc.source.none.fl_str_mv Iheringia. Série Zoologia v.111 2021
reponame:Iheringia. Série Zoologia
instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
instacron:FZB/RS
instname_str Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
instacron_str FZB/RS
institution FZB/RS
reponame_str Iheringia. Série Zoologia
collection Iheringia. Série Zoologia
repository.name.fl_str_mv Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
repository.mail.fl_str_mv ||iheringia-zoo@fzb.rs.gov.br
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