Identification of a small heat shock/α-crystallin protein in the scleractinian coral<i>Madracis mirabilis</i>(Duch. and Mitch.)

Branton, Margaret A.; MacRae, Thomas H.; Lipschultz, Fredric; Wells, Peter G.

doi:10.1139/z99-029

Cited by 9 publications

(1 citation statement)

References 42 publications

(47 reference statements)

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“…Several HSPs have been documented in coral species, including constitutive (cognate) heat shock protein 70 (HSC 70), and inducible HSP 70, HSP 60 and HSP 25, under heat and UV radiation stress (Hayes & King 1995, Fang et al 1997, Sharp et al 1997, Branton et al 1999, Downs et al 2000. HSP 70 is the best-documented heat shock protein, largely because it is highly inducible.…”

Section: Introductionmentioning

confidence: 99%

Population recovery and differential heat shock protein expression for the corals Agaricia agaricites and A. tenuifolia in Belize

Robbart¹,

Peckol²,

Scordilis³

et al. 2004

Mar. Ecol. Prog. Ser.

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Over recent decades, coral reefs worldwide have experienced severe sea-surface temperature (SST) anomalies. Associated with an El Niño-Southern Oscillation (ENSO) event of 1997-1998, nearly 100% mortality of the space-dominant coral Agaricia tenuifolia was reported at several shelf lagoonal sites of the Belize barrier reef system; a less abundant congener, A. agaricites, had lower mortality rates. We assessed A. agaricites and A. tenuifolia populations at coral reef ridges in the south-central sector of the Belize shelf lagoon and forereef sites to document recovery following the 1998 ENSO event and subsequent passage of Hurricane Mitch. To investigate the difference in heat stress tolerance between the 2 species, heat shock protein (HSP) expression was examined in the laboratory under ambient (28°C) and elevated (+ 6°C) temperatures. Populations of A. agaricites and A. tenuifolia surveyed at forereef sites in 1999 showed after effects from the 2 disturbances (partial colony mortality was ~23 and 30% for A. agaricites and A. tenuifolia, respectively), but partial mortality declined by 2001. At reef ridge sites, A. tenuifolia exhibited 75 to 95% partial colony mortality in 1999 compared to 18% in the less abundant A. agaricites. We measured a significant increase in percentage live cover at ridge sites for both Agaricia species from 1999 to 2001, except at Tunicate Ridge; at this site, which has restricted water flow, live A. tenuifolia cover remained low (~10%) 3.5 yr after the 1998 warming event, due in part to high sponge cover (> 75%). Immunoblotting results indicated that A. agaricites had twice as much HSC 70 (16.9 µg cm -2 ) as A. tenuifolia (8.7 µg cm -2 ) at ambient temperatures and 6 × as much under the + 6°C treatment. In addition to the inducible response by A. agaricites, this species expressed HSP 90, whereas A. tenuifolia did not. The distinctive patterns of population recovery and HSP expression suggest that A. tenuifolia has a lesser ability to produce HSPs for protection against environmental stress than A. agaricites. Such differences in resilience to large-scale environmental disturbances such as intermittent ENSO episodes may drive a dramatic change in coral species abundance patterns.

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Section: Introductionmentioning

confidence: 99%

Population recovery and differential heat shock protein expression for the corals Agaricia agaricites and A. tenuifolia in Belize

Robbart¹,

Peckol²,

Scordilis³

et al. 2004

Mar. Ecol. Prog. Ser.

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Aquatic Toxicology: Concepts, Practice, New Directions

Wells

2009

General, Applied and Systems Toxicology

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This chapter presents a broad overview of the principles, practice and some of the new developments in aquatic toxicology. The field has matured rapidly over the past 30‐40 years. Many acute and chronic toxicity testing methods have been developed and standardized for application in environmental protection. Basic research has been conducted with many species across the aquatic phyla, with a wide range of contaminants. Critical linkages have been made to other aquatic disciplines ensuring that a comprehensive understanding of exposure, uptake, metabolism and discharge of chemicals, in many aquatic species under many conditions, is fully realized. New issues, such as the effects of pharmaceuticals, are being investigated with urgency. Aquatic toxicology is now supported in many countries by a wide range of research programmes, graduate programmes, training courses and publications, assuring its place in basic and applied toxicology.

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The past, present, and future of coral heat stress studies

Cziesielski

Schmidt‐Roach

Aranda

2019

Ecology and Evolution

100

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The global loss and degradation of coral reefs, as a result of intensified frequency and severity of bleaching events, is a major concern. Evidence of heat stress affecting corals through loss of symbionts and consequent coral bleaching was first reported in the 1930s. However, it was not until the 1998 major global bleaching event that the urgency for heat stress studies became internationally recognized. Current efforts focus not only on examining the consequences of heat stress on corals but also on finding strategies to potentially improve thermal tolerance and aid coral reefs survival in future climate scenarios. Although initial studies were limited in comparison with modern technological tools, they provided the foundation for many of today's research methods and hypotheses. Technological advancements are providing new research prospects at a rapid pace. Understanding how coral heat stress studies have evolved is important for the critical assessment of their progress. This review summarizes the development of the field to date and assesses avenues for future research.

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Identification of a small heat shock/α-crystallin protein in the scleractinian coralMadracis mirabilis(Duch. and Mitch.)

Cited by 9 publications

References 42 publications

Population recovery and differential heat shock protein expression for the corals Agaricia agaricites and A. tenuifolia in Belize

Population recovery and differential heat shock protein expression for the corals Agaricia agaricites and A. tenuifolia in Belize

Aquatic Toxicology: Concepts, Practice, New Directions

The past, present, and future of coral heat stress studies

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