Among all the cohort 32 patients (65%) required hospitalization

Among all the cohort 32 patients (65%) required hospitalization. In all subgroups more than half of the cases required hospitalization (Table 1). Although as mentioned the morbidity was substantial, there were no cases of mortality. buy CHIR-99021 In this cohort, 1% of ill returning Israeli travelers were diagnosed with acute hepatitis. Acute hepatitis is a well-described cause of morbidity and occasionally mortality in travelers. Its main causes in travelers are viral and are divided into enterically transmitted and nonenterically transmitted (blood borne and sexually transmitted). Travelers to the developing world are at high

risk for enterically transmitted hepatitis as it spreads by contaminated food and water. www.selleckchem.com/products/pd-0332991-palbociclib-isethionate.html Indeed, during our study period 65% of all acute hepatitis cases were enterically transmitted. Interestingly, in 59% of these cases the etiology was HEV (39% of the total cohort; this may imply that HEV is an emerging disease and is becoming the most common hepatitis among Israeli travelers. Eighty-four percent of HEV cases were imported from the Indian subcontinent. India is hyperendemic

for HEV, which is the most common cause of acute sporadic hepatitis in India, and has also been associated with large-scale outbreaks.[10] Most cases are transmitted through contaminated water, owing the very poor sanitation and partial sewage system. The Indian subcontinent is a very popular travel destination among Israeli travelers, mainly India. Throughout a decade

and a half, the number of Israeli tourists to India tripled from 14,806 tourists at 1995 to 43,456 at 2010 (World Tourist Organization). The increasing numbers of travelers, along with the endemicity of India to HEV, the awareness to the diagnosis in our travel medical centers and availability of diagnostic tools are probably responsible for this emergence of HEV. In this report, most HEV cases were imported from the Indian subcontinent. 4��8C This is consistent with our previous report, more than a decade ago. We then reported five cases which were all acquired in the Indian subcontinent.[8] Our current results show the predominance and emergence of HEV among Israeli travelers. On the basis of our data (with a limitation that the data are not national, thus do not include all cases), throughout the study period 16 HEV cases were acquired in the Indian subcontinent and the number of Israeli travelers to this destination was approximately 500,000 tourists. Therefore, the estimated risk of acquiring HEV in the Indian subcontinent, which is highly endemic, is at least 3.2/100,000 travelers. This may explain the recent Dutch report that found no seroconversion among 1,270 travelers; moreover, most of them did not travel to the Indian subcontinent.[11] Although two efficacious vaccines were developed, no approved HEV vaccine exists yet for travelers.

, 2009) In their analyses, a collection of 3300 Xac transposon-i

, 2009). In their analyses, a collection of 3300 Xac transposon-insertion mutants was screened for their ability to produce disease in planta, and among the ORFs disrupted, XAC0798 (amy) was found to be the one that resulted in some alteration in bacterial virulence. In contrast, in our experiments, the disruption of XAC0798 by the insertion of pPM2a (Fig. 2) did not produce any alteration in pathogenesis or virulence even using the same host plant, Rangpur lime, used by Laia et al. (2009). This discrepancy could be explained tentatively by the selection of a hypothetical Xac amy∷transposon

mutant strain harboring an additional mutation (perhaps spontaneous) on a region essential for pathogenesis in the screenings performed by Laia et al. (2009). Xac has a repertoire of >1600 hypothetical ORFs, and

probably a considerable part of these might be involved in pathogenesis and virulence to its host Selleck SRT1720 plants. Therefore, the GFP expression vectors described here constitute not only extra tools for the study of specific proteins but also an auxiliary method for protein functional assignments, similar to what has already been done with B. subtilis and Caulobacter crescentus (Meile et al., 2006; Werner et al., 2009). P.M.M.M. was supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP_2006/59494-9). We thank M.A. Machado (IAC-Cordeirópolis) for allowing us to use their microscope facilities. We thank F.J. Gueiros-Filho for PD-0332991 clinical trial the gift of pEA18 and the anti-GFP antibody. We thank L.F.F. Donin (Olympus Brazil) for technical support. This work was funded by FAPESP grant 2004/09173-6. Table S1. Oligonucleotides. Fig. S1. Growth curves of Xac wild type, and the mutant strains Xac amy:pPM2a and Xac amy:pPM2a-XAC3408. Please note: Wiley-Blackwell is not responsible for the content or functionality of any supporting materials supplied by the authors. Any queries (other than missing material)

should be directed to the corresponding author for the article. “
“The genes lukS-PV and lukF-PV for Panton–Valentine leukocidin (PVL) that confers high virulence to Staphylococcus aureus are located on the prophages (PVL phages) which have been classified into group 1 and 2 sfi21-like Siphoviridae. We report novel PVL phages lysogenized in Baf-A1 order ST59 methicillin-resistant Staphylococcus aureus (MRSA) strains isolated in Japan (JCSC7247) and Taiwan (JCSC5967). The genomes of φ7247PVL and φ5967PVL showed more than 99% identity, and the regions containing the five genes located at both ends of the prophages, int (integrase), hol (holin), ami (amidase), lukS-PV, and lukF-PV, are highly homologous to extant PVL phages. The genes for the structural module are less homologous to these phages, but are highly homologous to non-PVL phages belonging to group 3 Sfi21-like Siphoviridae, for example φN315.

01 vs

antigen c, and P<0001 vs antigens a and b) Simi

01 vs.

antigen c, and P<0.001 vs. antigens a and b). Similarly, significant differences (P<0.001) were found between antigen c vs. antigens a and b. Haemophilus parasuis counts were significantly lower for all sera developed against any of the rTbpA fragment preparations, ranging from (4.5±1.3) × 103 CFU mL−1 for group (a) to (5.5±3.0) × 103 CFU mL−1 for group (b), compared either with group (e) (PBS) or (f) (without serum) (P<0.01 in both cases). No significant differences were found when comparing any of the groups (a) to (d) with each other (Fig. 7). Haemophilus parasuis Nagasaki strain cells (0.2–2.0 × 1.0–7.0 μm), grown in an iron-deficient medium and exposed to any of the sera developed, were covered with an selleck compound irregular and discontinuous layer of gold particles (Fig. 8a). A

minor amount of gold particles was seen when this H. parasuis strain was grown in an iron-sufficient medium (Fig. 8b). Finally, these particles were absent on cells in which the first antibody was excluded (Fig. 8c). For access to these limited resources of iron, pathogenic bacteria from the family Pasteurellaceae can either synthesize siderophores (del Río et al., 2006) or utilize high-affinity iron uptake systems, such as Tbps (Litwin & Calderwood, 1993). The organization of the TonB region, involved in transferrin iron uptake and composed of tonB, exbB, exbD, tbpB and tbpA genes, has already been 17-DMAG (Alvespimycin) HCl described in H. parasuis (del Río et al., 2005), but the expression of the tbpA gene has not been Pexidartinib research buy reported previously.

The TbpA forward primer designed in this study, along with the reverse primer tbpA33 reported previously (de la Puente Redondo et al., 2000), successfully allowed the amplification of the complete tbpA gene, unlike the forward primer designed by de la Puente Redondo et al. (2000), which was unable to amplify the first 21 nucleotides of the tbpA gene. As the amplification product of tbpA gene obtained in H. parasuis is different in size from the 2.8-kb fragment revealed in A. pleuropneumoniae and A. suis (de la Puente Redondo et al., 2000), the amplification of this gene could be a good candidate for an effective diagnostic tool for porcine respiratory infections caused for Pasteurellaceae. On the other hand, the molecular mass of the predicted, mature TbpA of A. suis was 104.3 kDa (Bahrami et al., 2003), while that of a complete rTbpA of A. pleuropneumoniae was 110 kDa (Kim & Lee, 2006). After selection of a 600-bp tbpA fragment from H. parasuis, purification and elution of rTbpA, there was clear evidence of the production of a 38.5 kDa protein on the SDS-PAGE gel, which represents about one-third of the estimated size for the complete TbpA of other Pasteurellaceae. In a previous study, an rTbpB from H. parasuis was generated (del Río et al.

However, the D2 and D3 domains that form a knob-like projection o

However, the D2 and D3 domains that form a knob-like projection on the surface of the flagellum are relatively quite different in terms of structure. According to the structural model of type I flagellin, the knob-like projection appeared to consist of four α-helixes and a double-stranded β-sheet, and had a total amino acid residue number of 151. The model of the type II flagellin was characterized as having a compact structure without a D3 domain, with only 26 amino acid residues in the D2/D3 domain. In Rucaparib ic50 addition, the number of solvent-exposed hydrophobic amino acids corresponding to the knob-like projection in the types I flagellin was

57 aa, and also the type II flagellin was 13 aa. The phylogenetic tree generated based on the N-terminal flagellin amino acid sequences (115 aa) showed that almost all of Actinoplanes species could be divided into three subgroups (Fig. 3). Subgroup A consisted of six strains with

type I flagellin amino acid sequences that had sequence similarities of 80.8–89.5%. The highest sequence similarity (89.5%) was observed between Actinoplanes liguriensis NBRC 13997T, Actinoplanes deccanensis NBRC 13994T, and Actinoplanes grobisporus NBRC 13912T. Subgroup B consisted of Actinoplanes consettensis NBRC 14913T and Actinoplanes humidus NBRC 14915T, Natural Product Library cell line which shared 100% similarities in flagellin amino acid sequences. On the other hand, subgroup C consisted of five type I flagellin sequences and three type II flagellin sequences, with similarity values in the range of 76.6–100%. Subgroup C contained sequences that were identical to those of Actinoplanes digitatis NBRC 12512T and A. missouriensis NBRC 102363T. Three of the Actinoplanes strains with the type II flagellin were phylogenetically closely related, with sequence similarity values in the range of 86.9–98.2%. However, A. auranticolor

did not cluster with the other Actinoplanes species. In this study, we developed new degenerate primers for assaying three phylogenetically MRIP distinct taxa belonging to order Actinomycetales. The primers successfully amplified the flagellin gene sequences of 21 Actinoplanes strains, as well as the flagellin gene sequences of other motile actinomycete strains (data not shown). Two flagellin gene polymorphisms were observed among the Actinoplanes species assayed; one of the PCR products was c. 1.2 kbp (type I), and other is c. 0.8 kbp (type II). The difference between type I and II flagellin gene sequences was revealed by alignment of nucleotide/amino acid sequences containing a large number of gaps in the central region of the sequence. Previously, Vesselinova & Ensign (1996) reported that Actinoplanes rectilineatus and Ampullariella pekinensis (currently Actinoplanes capilaceus) had distinct types of flagellin protein with molecular masses of 42 and 32 kDa, respectively.

, 2003) Thus, the reduced mRNA level of ica

was possibly

, 2003). Thus, the reduced mRNA level of ica

was possibly because of the low cellular concentration of glucose because both EMP and PPP were considerably enhanced (Fig. 5). In this study, we showed that S. aureus responded to sulfhydryl compounds such as dithiothreitol, BME and cysteine, and enhanced both EMP and PPP. The process was probably a mechanism for the protection of bacterial cells by changing the composition of their cell walls. As a result, UDP-GlcNAc metabolism GW 572016 was reduced and PIA biosynthesis was inhibited. Here, our research revealed a still unrecognized role of sulfhydryl compounds in inhibiting S. aureus biofilm formation. Unlike many known anti-biofilm reagents, which are also mainly antibiotics, treatment with thiols is mild, less toxic and did not cause side effects such as antibiotic resistance. We hope this novel

physiological phenomenon will suggest a potential strategy for the prevention and treatment of biofilm-associated problems caused by S. aureus. We thank NARSA for providing the staphylococcal strains in this research. This work was supported by National Natural selleck chemical Science Foundation of China (30721002). Fig. S1. The addition of sulfhydryl compounds into the culture medium at biofilm-inhibitive concentrations did not inhibit bacterial growth. Fig. S2. 2D-PAGE pattern of total proteins from Staphylococcus aureus NCTC8325 cells in TSB medium and TSB supplemented with 5 mM dithiothreitol. Table S1. Strains used in this study. Table S2. HPLC-ES-MS detected proteins in Staphylococcus aureus Non-specific serine/threonine protein kinase NCTC8325 that varied in abundance after sulfhydryl compound induction. Please note: Wiley-Blackwell is not responsible for the content or functionality of

any supporting materials supplied by the authors. Any queries (other than missing material) should be directed to the corresponding author for the article. “
“The construction of engineered bacterial cells with a reduced genome allows the investigation of molecular mechanisms that may be cryptic in wild-type strains and derivatives. Previously, a large-scale combined deletion mutant of Escherichia coli that lacked 29.7% of the parental chromosome was constructed by combining large chromosome deletions. In this work, we improved the system for making markerless-chromosomal deletions and obtained mutants with a genome that lacked up to 38.9% of the parental chromosome. Although the large-scale deletion mutants possessed genes needed for resistance to oxidative stress, including superoxide dismutase, catalase, and RpoS, they were sensitive to menadione, which induces reactive oxygen species during stationary phase. Small genome size did not necessarily correlate with greater sensitivity to menadione as several mutants with large deletions were more resistant to menadione.

, 2003) Thus, the reduced mRNA level of ica

was possibly

, 2003). Thus, the reduced mRNA level of ica

was possibly because of the low cellular concentration of glucose because both EMP and PPP were considerably enhanced (Fig. 5). In this study, we showed that S. aureus responded to sulfhydryl compounds such as dithiothreitol, BME and cysteine, and enhanced both EMP and PPP. The process was probably a mechanism for the protection of bacterial cells by changing the composition of their cell walls. As a result, UDP-GlcNAc metabolism see more was reduced and PIA biosynthesis was inhibited. Here, our research revealed a still unrecognized role of sulfhydryl compounds in inhibiting S. aureus biofilm formation. Unlike many known anti-biofilm reagents, which are also mainly antibiotics, treatment with thiols is mild, less toxic and did not cause side effects such as antibiotic resistance. We hope this novel

physiological phenomenon will suggest a potential strategy for the prevention and treatment of biofilm-associated problems caused by S. aureus. We thank NARSA for providing the staphylococcal strains in this research. This work was supported by National Natural click here Science Foundation of China (30721002). Fig. S1. The addition of sulfhydryl compounds into the culture medium at biofilm-inhibitive concentrations did not inhibit bacterial growth. Fig. S2. 2D-PAGE pattern of total proteins from Staphylococcus aureus NCTC8325 cells in TSB medium and TSB supplemented with 5 mM dithiothreitol. Table S1. Strains used in this study. Table S2. HPLC-ES-MS detected proteins in Staphylococcus aureus the NCTC8325 that varied in abundance after sulfhydryl compound induction. Please note: Wiley-Blackwell is not responsible for the content or functionality of

any supporting materials supplied by the authors. Any queries (other than missing material) should be directed to the corresponding author for the article. “
“The construction of engineered bacterial cells with a reduced genome allows the investigation of molecular mechanisms that may be cryptic in wild-type strains and derivatives. Previously, a large-scale combined deletion mutant of Escherichia coli that lacked 29.7% of the parental chromosome was constructed by combining large chromosome deletions. In this work, we improved the system for making markerless-chromosomal deletions and obtained mutants with a genome that lacked up to 38.9% of the parental chromosome. Although the large-scale deletion mutants possessed genes needed for resistance to oxidative stress, including superoxide dismutase, catalase, and RpoS, they were sensitive to menadione, which induces reactive oxygen species during stationary phase. Small genome size did not necessarily correlate with greater sensitivity to menadione as several mutants with large deletions were more resistant to menadione.

6 mA footstock; inter-trial interval 20–180 s) Four CS–US pairin

6 mA footstock; inter-trial interval 20–180 s). Four CS–US pairings were used in one solely behavioral experiment to determine if the extinction impairment of PN-1 KO mice depended on the number of pairings. Five pairings were used for all other experiments to ensure that WT mice showed strong freezing responses at the beginning of extinction trials. The onset of the US coincided with the offset of the CS. To score freezing behavior, we used an automatic infrared beam-detection system placed on the bottom of the experimental chambers (Coulbourn Whitehall, PA, USA). The mice were considered to be freezing if no movement was detected for 2 s. Freezing buy TSA HDAC was sampled for

2 min before the CS presentation to establish baseline activity and during the 30-s CS presentations. The fear conditioning context differed from the extinction context in shape, smell and

light intensity. Conditioning, early extinction and late extinction sessions took place on three consecutive days. The extinction group selleck screening library (ext.) was conditioned in one context, and on the following 2 days underwent early and late extinction training sessions consisting of 16 CS presentations in a different context in order to eliminate contextual conditioning effects. The no extinction group (no ext.) was conditioned as the extinction group, but only exposed to four CS presentations on the following 2 days. The freezing response to the first two CS presentations in early extinction sessions was used as the measure of fear retrieval. The CS-only group (CS-only) underwent the same regime as the no extinction group except that they were never exposed to a foot shock. Naïve control

mice for Fos immunohistological staining were handled as above, but kept in their home cage and never exposed to the CS. Unless stated otherwise, behavioral data were analysed by two-way repeated measure anova and Bonferroni post hoc tests (GraphPad Prism4 software, San Diego, CA, USA), and shown as mean ± SEM total freezing time. Student’s t-test analysis was performed using GraphPad Prism4 software. For immunohistochemical and immunoblotting LY294002 experiments, mice were killed 2 h after the start of Day 3 trials. Mice were deeply anesthetized using ketamine (ml/kg, i.p.) and perfused transcardially with 50 mL 0.1 m ice cold phosphate-buffered saline, pH 7.4 and 80 mL 4% paraformaldehyde in said buffer (unless specified otherwise, reagents were from FLUKA). The brains were dissected and postfixed for 24 h. Samples for cryostat sectioning were cryoprotected in 25% sucrose for 2 days, embedded in Shandon M-1 Embedding Matrix (#1310 Thermo Electron Corporation, Thermo Fisher Scientific) and frozen in −40°C isopentane. Sections were collected either on slides (12 or 25 μm thick) or as free-floating sections (40 or 60 μm thick) in sterile 0.05 m TRIS-buffered saline-filled wells, pH 7.4 (24-well plates) and stored at 4°C until use. Free-floating sections were stained three per well.

6 mA footstock; inter-trial interval 20–180 s) Four CS–US pairin

6 mA footstock; inter-trial interval 20–180 s). Four CS–US pairings were used in one solely behavioral experiment to determine if the extinction impairment of PN-1 KO mice depended on the number of pairings. Five pairings were used for all other experiments to ensure that WT mice showed strong freezing responses at the beginning of extinction trials. The onset of the US coincided with the offset of the CS. To score freezing behavior, we used an automatic infrared beam-detection system placed on the bottom of the experimental chambers (Coulbourn Whitehall, PA, USA). The mice were considered to be freezing if no movement was detected for 2 s. Freezing PLX4032 manufacturer was sampled for

2 min before the CS presentation to establish baseline activity and during the 30-s CS presentations. The fear conditioning context differed from the extinction context in shape, smell and

light intensity. Conditioning, early extinction and late extinction sessions took place on three consecutive days. The extinction group Smad inhibitor (ext.) was conditioned in one context, and on the following 2 days underwent early and late extinction training sessions consisting of 16 CS presentations in a different context in order to eliminate contextual conditioning effects. The no extinction group (no ext.) was conditioned as the extinction group, but only exposed to four CS presentations on the following 2 days. The freezing response to the first two CS presentations in early extinction sessions was used as the measure of fear retrieval. The CS-only group (CS-only) underwent the same regime as the no extinction group except that they were never exposed to a foot shock. Naïve control

mice for Fos immunohistological staining were handled as above, but kept in their home cage and never exposed to the CS. Unless stated otherwise, behavioral data were analysed by two-way repeated measure anova and Bonferroni post hoc tests (GraphPad Prism4 software, San Diego, CA, USA), and shown as mean ± SEM total freezing time. Student’s t-test analysis was performed using GraphPad Prism4 software. For immunohistochemical and immunoblotting Ibrutinib concentration experiments, mice were killed 2 h after the start of Day 3 trials. Mice were deeply anesthetized using ketamine (ml/kg, i.p.) and perfused transcardially with 50 mL 0.1 m ice cold phosphate-buffered saline, pH 7.4 and 80 mL 4% paraformaldehyde in said buffer (unless specified otherwise, reagents were from FLUKA). The brains were dissected and postfixed for 24 h. Samples for cryostat sectioning were cryoprotected in 25% sucrose for 2 days, embedded in Shandon M-1 Embedding Matrix (#1310 Thermo Electron Corporation, Thermo Fisher Scientific) and frozen in −40°C isopentane. Sections were collected either on slides (12 or 25 μm thick) or as free-floating sections (40 or 60 μm thick) in sterile 0.05 m TRIS-buffered saline-filled wells, pH 7.4 (24-well plates) and stored at 4°C until use. Free-floating sections were stained three per well.

008) In contrast, use of an electronic prescribing system, ‘deve

008). In contrast, use of an electronic prescribing system, ‘developed/undeveloped pharmacy team’ and specialised versus general units were not correlated with any of the intervention rates. This study indicates

that a proactive Saturday SCP service had double the intervention rate than weekdays. 33.6% of the prescriptions required an intervention, suggesting ICUs should aim to provide full weekend clinical service to reduce harm from medication errors and optimise pharmacotherapy. Secondly, these findings demonstrate the relationship between workload and SCP interventions. As the number of practitioner’s patient reviews increase so the intervention rate drops. The presence of a consultant pharmacist was correlated with a reduction in medication error rate. Finally, increased classes of MDT professionals prescribing in the ICU (excluding pharmacists), selleck products was correlated with a higher SCP intervention rate. Written on behalf of PROTECTED ICU UK group; United Kingdom Clinical Pharmacy Association (UKCPA) research grant; The NIHR Biomedical Research Centre, Guy’s and St Thomas’s NHS Foundation Trust. S. Uptona,b, M.

Culshawa, J. Stephensona aUniversity of Huddersfield, West Yorkshire, UK, bCalderdale and HKI272 Huddersfield NHS Foundation Trust, West Yorkshire, UK To identify demographic and pharmaceutical factors associated with readmission and to determine whether pharmacist validation of discharge prescriptions impacted on readmission rate in a district general hospital. The average number of items prescribed at discharge and the average age were found to be significantly higher in patients who were readmitted than those who were not, and mandating

pharmacist validation of discharge prescriptions was associated with a reduction of around one-fifth in the readmission rate. The study provides evidence of the patient groups it may be most appropriate for pharmacists to focus on in order to reduce readmissions. Readmission is a growing problem for the National Health Service. In England the rate has increased by almost one-third over ten years, reaching 11.5% in 2011/12.1 In 2009 the Care Quality Commission reported that 81% of General Practitioners recorded discrepancies in discharge Thiamet G medication information “all” or “most of the time.”2 Whilst pharmacist validation of discharge prescriptions (TTOs) is routine in Calderdale and Huddersfield NHS Foundation Trust, it was previously prompted by the need for supply, and due to the successful implementation of one-stop dispensing the TTO validation rate was surprisingly low. The study aimed to identify factors associated with readmission, to quantify the effect of enforcing pharmacist validation of TTOs and to determine whether this impacted on the readmission rate.

48 days of deployment, much of the biofilm material was carefully

48 days of deployment, much of the biofilm material was carefully scraped off the substrates into cryovials using sterile No. 11 scalpel blades (yield was usually >2 g), snap-frozen in liquid nitrogen and stored at −80 °C until further processing. Water quality samples were obtained and analysed as described in detail in Schaffelke et al. (2010) and Cooper et al. (2007). In short, duplicate samples from two depths at each location per sample time were analysed for dissolved inorganic nutrients (DIN,

includes NH4, NO2, NO3), dissolved inorganic phosphorus (DIP), total suspended solids (TSS), chlorophyll a and salinity. For particulate LGK-974 supplier nutrients and chlorophyll a analysis, water samples were collected on pre-combusted glass fibre filters and analysed after acetone extraction. Samples for determining TSS were collected on pre-weighed 0.4 μm polycarbonate filters, and TSS concentrations were determined gravimetrically. Salinity Target Selective Inhibitor Library order was determined using a Portasal Model 8410A Salinometer (Guildline). Autonomous water quality instruments (Eco FLNTUSB Combination Fluorometer and Turbidity loggers; WET Labs, Philomath, OR) recorded turbidity (optical backscatter) and in situ temperature data. Light was measured using Odyssey light loggers equipped with wiping units as described in Uthicke & Altenrath

(2010). Total DNA was extracted from 0.5 g (wet weight) of each biofilm sample using the MoBio UltraClean Soil Kit (MoBio Laboratories, Solana Beach, CA) according to the manufacturer’s protocol with the following modifications. Bead-beating eltoprazine (Mini-Bead-Beater, Biospec Products, Bartleville, OK) (2 × 30 s) cycles were performed, 900 mL of S3 buffer was used and DNA was eluted from the

column with 2 × 50 μL of 1 × TE buffer. DNA extracts were examined using standard 1% agarose gel electrophoresis and quantified using a Nanodrop Spectrophotometer (Thermo Fisher Scientific, Waltham, MA). Bacterial 16S rRNA genes were amplified by PCR using the general bacterial 16S rRNA gene primers 63F (5′-CAGGCCTAACACATGCAAGTC-3′) and 1389R (5′-ACGGGCGGTGTGTACAAG-3′) (Sigma-Proligo, The Woodlands, TX) (Marchesi et al., 1998). Each sample was amplified in triplicate 25 μL reactions containing 2.5 μM non-acetylated bovine serum albumin (New England Biolabs, Biolabs, USA), 2 μM (2 mM each) dNTP (Astral Scientific, Australia), 2.5 μM forward primer 63F, 1.25 μM reverse primer 1389R, 1 μM MgCl2 (Qiagen, Germany), 1.25 U HotStar Taq (Qiagen), 2.5 μL HotStar Buffer (Qiagen) and c. 2 ng of template DNA. Amplification was performed with an initial incubation at 95 °C for 15 min, followed by 30 cycles of 94 °C for 1 min, 55 °C for 1 min, 72 °C for 90 seconds and a final extension at 72 °C for 10 min. As T-RFLP profiles from glass slides and coral skeletons were very similar, only communities from glass slides were cloned.