Arrangement and Development of Spicules in the Coral-killing Sponge, .

Rützler & Muzik, 1993 is a poriferan species that competes with corals and is known as a coral-killing sponge. However, limited information is available on its biology, including morphological traits. This study aims to examine the arrangement and development of spicules in various body parts of the sponge, including settled larvae.

Microbiome heterogeneity in tissues of the coral, Fimbriaphyllia (Euphyllia) ancora.

Coral microbiomes differ in the mucus, soft tissue and skeleton of a coral colony, but whether variations exist in different tissues of a single polyp is unknown. In the stony coral, Fimbriaphyllia ancora, we identified 8,994 amplicon sequencing variants (ASVs) in functionally differentiated polyp tissues, i.e.

Microbiome manipulation by corals and other Cnidaria via quorum quenching.

A dynamic mucous layer containing numerous micro-organisms covers the surface of corals and has multiple functions including both removal of sediment and "food gathering." It is likely to also act as the primary barrier to infection; various proteins and compounds with antimicrobial activity have been identified in coral mucus, though these are thought to be largely or exclusively of microbial origin. As in Hydra, anti-microbial peptides (AMPs) are likely to play major roles in regulating the microbiomes of corals.

Common dietary emulsifiers promote metabolic disorders and intestinal microbiota dysbiosis in mice.

Dietary emulsifiers are linked to various diseases. The recent discovery of the role of gut microbiota-host interactions on health and disease warrants the safety reassessment of dietary emulsifiers through the lens of gut microbiota. Lecithin, sucrose fatty acid esters, carboxymethylcellulose (CMC), and mono- and diglycerides (MDG) emulsifiers are common dietary emulsifiers with high exposure levels in the population.

A gauge of coral physiology: re-examining temporal changes in abundance correlated with natural coral bleaching.

Bacteria contribute to many physiological functions of coral holobionts, including responses to bleaching. The bacterial genus, , dominates the microbial flora of many coral species and its abundance appears to be correlated with coral bleaching. However, evidences for decoupling of bleaching and abundance changes have also been reported.

Similar but different: Characterization of gene-mediated DMSP metabolism among coral-associated .

are often predominant bacteria and prominently important in coral health. Their role in dimethylsulfoniopropionate (DMSP) degradation has been a subject of discussion for over a decade. A previous study found that degraded DMSP through the pathway.

Reciprocal transplant experiment reveals multiple factors influencing changes in coral microbial communities across climate zones.

Previous studies have demonstrated the influence of external factors (environmental factors and the coral host factors) on the community structure of coral-associated bacteria. However, the internal factors, e.g.

Bacterial Community Shifts during Polyp Bail-Out Induction in Corals.

Polyp bail-out constitutes both a stress response and an asexual reproductive strategy that potentially facilitates dispersal of some scleractinian corals, including several dominant reef-building taxa in the family Pocilloporidae. Recent studies have proposed that microorganisms may be involved in onset and progression of polyp bail-out. However, changes in the coral microbiome during polyp bail-out have not been investigated.

Microbial mat compositions and localization patterns explain the virulence of black band disease in corals.

Black band disease (BBD) in corals is characterized by a distinctive, band-like microbial mat, which spreads across the tissues and often kills infected colonies. The microbial mat is dominated by cyanobacteria but also commonly contains sulfide-oxidizing bacteria (SOB), sulfate-reducing bacteria (SRB), and other microbes. The migration rate in BBD varies across different environmental conditions, including temperature, light, and pH.

Cellular mechanisms underlying extraordinary sulfide tolerance in a crustacean holobiont from hydrothermal vents.

The shallow-water hydrothermal vent system of Kueishan Island has been described as one of the world's most acidic and sulfide-rich marine habitats. The only recorded metazoan species living in the direct vicinity of the vents is a brachyuran crab endemic to marine sulfide-rich vent systems. Despite the toxicity of hydrogen sulfide, occupies an ecological niche in a sulfide-rich habitat, with the underlying detoxification mechanism remaining unknown.

High-Quality Genome Sequences of Two Octocoral-Associated Bacteria, Endozoicomonas euniceicola EF212 and Endozoicomonas gorgoniicola PS125.

Endozoicomonas euniceicola EF212 and Endozoicomonas gorgoniicola PS125 were isolated from soft corals (Eunicea fusca and sp., respectively) and sequenced using a PacBio Sequel IIe sequencer. This is the first report of the genome sequences of culturable octocoral-isolated strains.

Comparative genomic and transcriptomic analyses of trans-kingdom pathogen Fusarium solani species complex reveal degrees of compartmentalization.

Background: The Fusarium solani species complex (FSSC) comprises fungal pathogens responsible for mortality in a diverse range of animals and plants, but their genome diversity and transcriptome responses in animal pathogenicity remain to be elucidated. We sequenced, assembled and annotated six chromosome-level FSSC clade 3 genomes of aquatic animal and plant host origins. We established a pathosystem and investigated the expression data of F.

Soil Bacterial Community May Offer Solutions for Ginger Cultivation.

The Taitung region is one of Taiwan's main sites for ginger agriculture. Due to issues with disease and nutrients, farmers cannot use continuous cropping techniques on ginger, meaning that the ginger industry is constantly searching for new land. Continuous cropping increases the risk of infection by Pythium myriotylum and Ralstonia solanacearum, which cause soft rot disease and bacterial wilt, respectively.

High-resolution spatial and genomic characterization of coral-associated microbial aggregates in the coral .

Bacteria commonly form aggregates in a range of coral species [termed coral-associated microbial aggregates (CAMAs)], although these structures remain poorly characterized despite extensive efforts studying the coral microbiome. Here, we comprehensively characterize CAMAs associated with and quantify their cell abundance. Our analysis reveals that multiple phylotypes coexist inside a single CAMA.

Microbiome Restructuring: Dominant Coral Bacterium Species Respond Differentially to Environmental Changes.

Bacteria in the coral microbiome play a crucial role in determining coral health and fitness, and the coral host often restructures its microbiome composition in response to external factors. An important but often neglected factor determining this microbiome restructuring is the ability of microbiome members to respond to changes in the environment. To address this issue, we examined how the microbiome structure of corals changed over 9 months following a reciprocal transplant experiment.

Population genetics and demography of the coral-killing cyanobacteriosponge, in the Indo-West Pacific.

The first occurrence of the cyanobacteriosponge was reported from coral reefs in Guam in 1973, but was only formally described in 1993. Since then, the invasive behavior of this encrusting, coral-killing sponge has been observed in many coral reefs in the West Pacific. From 2015, its occurrence has expanded westward to the Indian Ocean.

A multi-step nitrifying microbial enrichment to remove ammonia and nitrite in brackish aquaculture systems.

One of the most important advancements in harnessing the biological nitrification in the field is enrichment solution of nitrifying microbial consortia. In the current study, we developed an improved multi-step enrichment to amplify a targeted microbial consortium from a sediment sample collected in tropical mangrove, Vietnam. The results showed that it took 122 culturing days with five unique continuous enrichment steps, the microbial consortium consumed total 5665 mgN L.

Extra high superoxide dismutase in host tissue is associated with improving bleaching resistance in "thermal adapted" and -associating coral.

Global warming threatens reef-building corals with large-scale bleaching events; therefore, it is important to discover potential adaptive capabilities for increasing their temperature resistance before it is too late. This study presents two coral species ( and ) surviving on a reef having regular hot water influxes via a nearby nuclear power plant that exhibited completely different bleaching susceptibilities to thermal stress, even though both species shared several so-called "winner" characteristics ( containing , thick tissue, ). During acute heating treatment, algal density did not decline in corals within three days of being directly transferred from 25 to 31 °C; however, the same treatment caused .

Single-cell genomics-based analysis reveals a vital ecological role of sp. LSW in the meromictic Lake Shunet, Siberia.

Meromictic lakes usually harbour certain prevailing anoxygenic phototrophic bacteria in their anoxic zone, such as the purple sulfur bacterium (PSB) sp. LSW (hereafter LSW) in Lake Shunet, Siberia. PSBs have been suggested to play a vital role in carbon, nitrogen and sulfur cycling at the oxic-anoxic interface of stratified lakes; however, the ecological significance of PSBs in the lake remains poorly understood.

Detection of Pathogenic and Beneficial Microbes for Roselle Wilt Disease.

Wilt disease of roselle ( L.) is common in Taiwan; however, the causative agent remains unknown. The stems of wilted roselle are browned, slightly constricted, and covered by white aerial hyphae, suggesting that potential pathogens may originate from soil.

Spatial and cross-seasonal patterns of coral diseases in reefs of Taiwan: high prevalence and regional variation.

Although research on coral diseases is increasing worldwide, it remains limited in Taiwan. Taiwan is located at the Tropic of Cancer and contains both tropical and subtropical reefs. We conducted spatial and cross-seasonal surveys in Taiwan in 2018 and identified 7 types of disease and nondisease lesions and 6 potential factors influencing coral health.

Bacterial Dynamics in the Accessory Nidamental Gland of Sepioteuthis lessoniana throughout Maturation.

The accessory nidamental gland (ANG) is part of the reproduction organ in the majority of female cephalopods, including the bigfin reef squid Sepioteuthis lessoniana, an economically important fishery product. Microbes in Alphaproteobacteria, Gammaproteobacteria, and Verrucomicrobia have been suggested to play a role in the maturation of the S. lessoniana ANG and are responsible for its color.