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Insights on the biochemical and cellular changes induced by heat stress in the Cladocopium isolated from coral Mussismilia braziliensis.
Lima, Michele S; Hamerski, Lidilhone; Silva, Tatiana A; da Cruz, Maria Luíza R; Varasteh, Tooba; Tschoeke, Diogo A; Atella, Georgia C; de Souza, Wanderley; Thompson, Fabiano L; Thompson, Cristiane C.
Afiliação
  • Lima MS; Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Hamerski L; Walter Mors Institute of Research on Natural Products, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Silva TA; Laboratory of Celullar Ultrastructure Hertha Meyer, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • da Cruz MLR; National Center for Structural Biology and Bioimaging (Cenabio), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Varasteh T; Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Tschoeke DA; Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Atella GC; Biomedical Engineering Program - COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • de Souza W; Laboratory of Lipids Biochemistry and Lipoprotein, Biochemistry Institute Leopoldo de Meis, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Thompson FL; Laboratory of Celullar Ultrastructure Hertha Meyer, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Thompson CC; National Center for Structural Biology and Bioimaging (Cenabio), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
Front Microbiol ; 13: 973980, 2022.
Article em En | MEDLINE | ID: mdl-36299729
Corals are treatened by global warming. Bleaching is one immediate effect of global warming, resulting from the loss of photosynthetic endosymbiont dinoflagellates. Understanding host-symbiont associations are critical for assessing coral's habitat requirements and its response to environmental changes. Cladocopium (formerly family Symbiodiniaceae clade C) are dominant endosymbionts in the reef-building coral, Mussismilia braziliensis. This study aimed to investigate the effect of temperature on the biochemical and cellular features of Cladocopium. Heat stress increased oxygen (O2) and decreased proteins, pigments (Chla + Chlc2), hexadecanoic acid- methyl ester, methyl stearate, and octadecenoic acid (Z)- methyl ester molecules. In addition, there was an increase in neutral lipids such as esterified cholesterol and a decrease in free fatty acids that may have been incorporated for the production of lipid droplets. Transmission electron microscopy (TEM) demonstrated that Cladocopium cells subjected to heat stress had thinner cell walls, deformation of chloroplasts, and increased lipid droplets after 3 days at 28°C. These findings indicate that thermal stress negatively affects isolated Cladocopium spp. from Mussismilia host coral.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE País/Região como assunto: America do sul / Brasil Idioma: En Revista: Front Microbiol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE País/Região como assunto: America do sul / Brasil Idioma: En Revista: Front Microbiol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça