Nitrogen source preference of Aspergillus sydowii, an infective agent associated with aspergillosis of sea fan corals

Rivest, Emily B.; Baker, David M.; Rypien, Krystal L.; Harvella, C. Drew

doi:10.4319/lo.2010.55.1.0386

Cited by 8 publications

(2 citation statements)

References 36 publications

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“…More recently, a variety of other Aspergillus species have been shown to produce similar disease signs (Toledo-Hernandez et al 2008). The octocoral coenenchyme tissue seems to be the main nutrient source for the fungi (Rivest et al 2010). Therefore, ASP signs could be produced by a diverse group of Aspergillus taxa, and testing for the particular agent causing the disease is recommended when doing prevalence surveys.…”

Section: Aspergillosis (Asp)mentioning

confidence: 99%

Octocoral Diseases in a Changing Ocean

Weil¹,

Rogers²,

Cróquer³

2016

Marine Animal Forests

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Octocorals (Cnidaria, Octocorallia) constitute a geographically widely distributed and common group of marine invertebrates commonly referred to as "soft-corals," "sea fans," "horny corals," "sea feathers," and "sea plumes." They are found from shallow coastal habitats to mesophotic and abyssal depths. Octocorals are important members of most Atlantic-Caribbean, Indo-Pacific, and Mediterranean coastal and mesophotic reef communities; however, information about their susceptibility to diseases, predation, and competition, and their relationship with changing environmental conditions is limited. At least 19 diseases have been observed in at least 42 common octocoral species throughout their range. Twelve of these have been reported in the wider-Caribbean (CA), one in Brazil (BR), two in the Mediterranean (ME), one in the Eastern Pacific (EP), and three in the western Pacific (WP). Pathogenic and/or environmental causes have been identified for eight diseases, including viruses, terrestrial fungi, protozoans, bacteria and cyanobacteria, filamentous algae, parasitic copepods, and high temperature. Only a few of the suspected pathogens have been tested with Koch's postulates. At least eight disease outbreaks have led to extensive octocoral mortalities in the CA, ME, BR, and EP with detrimental ecological consequences. The fungal disease Aspergillosis has produced the highest mortalities in the CA and the EP. Other fungi, protozoans, and the bacterium Vibrio coralliilyticus were identified as potential causes of the death of millions of colonies in two Mediterranean disease outbreaks. Bacterial and fungal agents seemed to be responsible for the mass mortalities in Brazil and the WP. Most outbreaks in all regions were linked to high thermal anomalies associated with climate change, which seems to be the major driver. Other biological stressors such as predation and/or competition produce injuries that may contribute to the spread of infections and mortality. Overfishing of common predators could lead to population explosions of octocoral-feeding species that produced mass mortalities in some Caribbean localities. Our lack of knowledge of causes and pathogenesis of octocoral diseases parallels that of hard corals. New diseases are being described almost every year concomitant with increasing seawater temperatures. The ecological and economic consequences could be significant, with drastic changes in the seascape of shallow coral reefs and other coastal marine habitats and reduction of their ecological services. Given our limited knowledge, our best options for recovery of octocorals and coral reefs in general include sound management of coastal fisheries, development and tourism; reduction of land-and sea-based pollution; and abating effects of climate change.

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Section: Aspergillosis (Asp)mentioning

confidence: 99%

Octocoral Diseases in a Changing Ocean

Weil¹,

Rogers²,

Cróquer³

2016

Marine Animal Forests

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“…However, microbes can also be agents of coral diseases when environmental conditions are not optimal (Frias-Lopez et al 2002, Pantos et al 2003, Bourne & Munn 2005. In studies of tropical octocorallia (Gorgonacea), the focus has been on antimicrobial activity (Cimino et al 1984, Roussis et al 2001, Couch et al 2008 or microbial diseases, particularly those that affect sea fans (Bruno et al 2007, Rivest et al 2010.…”

Section: Introductionmentioning

confidence: 99%

Bacteria of the genus Endozoicomonas dominate the microbiome of the Mediterranean gorgonian coral Eunicella cavolini

Bayer

Arif

Ferrier‐Pagés

et al. 2013

Mar. Ecol. Prog. Ser.

108

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Forming dense beds that provide the structural basis of a distinct ecosystem, the gorgonian Eunicella cavolini (Octocorallia) is an important species in the Mediterranean Sea. Despite the importance and prevalence of this temperate gorgonian, little is known about its microbial assemblage, although bacteria are well known to be important to hard and soft coral functioning. Here, we used massively parallel pyrosequencing of 16S rRNA genes to determine the composition and relative abundances of bacteria associated with E. cavolini collected from different depths at a site on the French Mediterranean coast. We found that whereas the bacterial assemblages of E. cavolini were distinct and less diverse than those of the surrounding water column, the water depth did not affect the bacterial assemblages of this gorgonian. Our data show that E. cavolini's microbiome contains only a few shared species and that it is highly dominated by bacteria from the genus Endozoicomonas, a Gammaproteobacteria that is frequently found to associate with marine invertebrates. KEY WORDS: Microbial communities · Gorgonian · Eunicella cavolini · 16S tag sequencingResale or republication not permitted without written consent of the publisher FREE REE ACCESS CCESS

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Aspergillosis of Caribbean Sea Fan Corals, Gorgonia spp.

Kim¹,

Rypien²

2015

Diseases of Coral

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Nitrogen source preference of Aspergillus sydowii, an infective agent associated with aspergillosis of sea fan corals

Cited by 8 publications

References 36 publications

Octocoral Diseases in a Changing Ocean

Octocoral Diseases in a Changing Ocean

Bacteria of the genus Endozoicomonas dominate the microbiome of the Mediterranean gorgonian coral Eunicella cavolini

Aspergillosis of Caribbean Sea Fan Corals, Gorgonia spp.

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