Response to pH stress in the reef-building coral Pocillopora capitata (Anthozoa: Scleractinia)

Para evaluar la respuesta metabolica del coral simbiotico Pocillopora capitata a la reduccion del pH del agua de mar en un sistema in vitro, 112 ramas de P. capitata se obtuvieron de la comunidad de corales La Boquita (LB) sin exhibir algun dano aparente de blanqueamiento. Se evaluaron 2 tratamientos de pH: a) 7,85/7,95 pH (Tratamiento C1), b) 7,60/7,70 (Tratamiento C2 ) y 8,00/8,40 pH tratamiento de control (CC). Las ramas de coral fueron asignadas aleatoriamente a unidades experimentales (n= 38 por tratamiento). Las muestras fueron tomadas en 2 tiempos para el analisis bioquimico y para evaluar cualitativamente los aspectos microestructurales por microscopia electronica de barrido: tiempo inicial, muestra tomada en 12 h (T1); tiempo final, muestras del ultimo dia de la exposicion (Tf, dia 7 del experimento). A diferencia del tejido simbionte, el analisis bioquimico del tejido del coral revelo que P. capitata muestra una respuesta inmediata reflejada en los coeficientes de ARN/ADN y proteina/ADN, asi como en las concentraciones de ARN y proteina, particularmente en el tratamiento de C2 en las horas iniciales del experimento. El analisis microestructural cualitativo identifico principalmente efectos en el tratamiento C2, que fue influenciado por la presencia de disgregaciones micro-superficiales en las regiones terminales de las fibras esqueleticas.

• Publication year

  2014

• Venue

  Revista De Biologia Marina Y Oceanografia

• Publication date

  2014-12-01

• Fields of study

  Not labeled

• Identifiers
  DOI 10.4067/S0718-19572014000300004
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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