La adquisición de simbiontes exógenos de algas por un octocoral después del blanqueo
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Published on: March 1, 2012
Cynthia L Lewis1, Mary Alice Coffroth
1Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY 14260, USA.
Science (New York, N.Y.)
|June 5, 2004
Resumen
Los eventos de blanqueamiento de coral están aumentando. Después del blanqueo, octocorals como Briareum sp. pueden adquirir nuevos simbiontes dinoflagelados de su entorno, ayudando a la resiliencia de la simbiosis.
Área de la Ciencia:
- Biología marina Biología marina.
- La investigación de la simbiosis es la investigación de la simbiosis.
- Ecología de los arrecifes de coral.
Sus antecedentes:
- El blanqueamiento de los corales, la pérdida de dinoflagelados simbióticos y los eventos de mortalidad son cada vez más frecuentes.
- La fuente de los simbiontes que repoblan los corales después del blanqueo sigue siendo en gran medida desconocida.
- Comprender la adquisición de simbiontes es crucial para la resiliencia de los corales.
Objetivo del estudio:
- Para investigar la fuente de simbiontes dinoflagelados en octocoral después de eventos de blanqueo.
- Para determinar si los corales pueden adquirir simbiontes del entorno externo.
- Para aclarar los mecanismos de recuperación de la simbiosis y la resiliencia.
Principales métodos:
- El blanqueamiento experimental del octocoral Briareum sp.
- Monitoreo de las poblaciones de simbiontes después del blanqueo.
- Muestreo ambiental para identificar fuentes potenciales de simbiontes.
Principales resultados:
- El octocoral adulto es el Briareum sp. simbiontes dinoflagelados adquiridos (Symbiodinium sp.) también conocidos como del medio ambiente después del blanqueo.
- La evidencia sugiere que la absorción de simbiontes exógenos es un mecanismo clave de recuperación.
- Esta adquisición mejora la resiliencia de la simbiosis coral-alga.
Conclusiones:
- Los octocorales pueden reponer sus poblaciones de simbiontes adquiriéndolas del medio ambiente.
- La adquisición ambiental de simbiontes ofrece un camino para la recuperación y adaptación de los corales.
- Este hallazgo pone de relieve un mecanismo crítico para mantener la simbiosis de los corales bajo estrés ambiental.
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