Combined antimicrobial effect of phage-derived endolysin and depolymerase against biofilm-forming < em > Salmonella < /em > Typhimurium
This study was designed to evaluate the antimicrobial activity of phage-derived endolysin (LysPB32) and depolymerase (DpolP22) against planktonic and biofilm cells of Salmonella Typhimurium (STKCCM). Compared to the control, the numbers of STKCCM were reduced by 4.3 and 5.9 log, respectively, at LysPB32 and LysPB32 + DpolP22 in the presence of polymyxin B (PMB) after 48-h incubation at 37 °C. LysPB32 + DpolP22 decreased the relative fitness (0.8) and the cross-resistance of STKCCM to chloramphenicol (CHL), cephalothin (CEP), ciprofloxacin (CIP), and tetracycline (TET) in the presence of PMB. The MICtrt/MICcon ratios of CH...
Source: Biofouling - October 5, 2023 Category: Molecular Biology Authors: Junhwan Kim Jun Wang Juhee Ahn Source Type: research
Combined antimicrobial effect of phage-derived endolysin and depolymerase against biofilm-forming < em > Salmonella < /em > Typhimurium
This study was designed to evaluate the antimicrobial activity of phage-derived endolysin (LysPB32) and depolymerase (DpolP22) against planktonic and biofilm cells of Salmonella Typhimurium (STKCCM). Compared to the control, the numbers of STKCCM were reduced by 4.3 and 5.9 log, respectively, at LysPB32 and LysPB32 + DpolP22 in the presence of polymyxin B (PMB) after 48-h incubation at 37 °C. LysPB32 + DpolP22 decreased the relative fitness (0.8) and the cross-resistance of STKCCM to chloramphenicol (CHL), cephalothin (CEP), ciprofloxacin (CIP), and tetracycline (TET) in the presence of PMB. The MICtrt/MICcon ratios of CH...
Source: Biofouling - October 5, 2023 Category: Molecular Biology Authors: Junhwan Kim Jun Wang Juhee Ahn Source Type: research
Combined antimicrobial effect of phage-derived endolysin and depolymerase against biofilm-forming < em > Salmonella < /em > Typhimurium
This study was designed to evaluate the antimicrobial activity of phage-derived endolysin (LysPB32) and depolymerase (DpolP22) against planktonic and biofilm cells of Salmonella Typhimurium (STKCCM). Compared to the control, the numbers of STKCCM were reduced by 4.3 and 5.9 log, respectively, at LysPB32 and LysPB32 + DpolP22 in the presence of polymyxin B (PMB) after 48-h incubation at 37 °C. LysPB32 + DpolP22 decreased the relative fitness (0.8) and the cross-resistance of STKCCM to chloramphenicol (CHL), cephalothin (CEP), ciprofloxacin (CIP), and tetracycline (TET) in the presence of PMB. The MICtrt/MICcon ratios of CH...
Source: Biofouling - October 5, 2023 Category: Molecular Biology Authors: Junhwan Kim Jun Wang Juhee Ahn Source Type: research
Combined antimicrobial effect of phage-derived endolysin and depolymerase against biofilm-forming < em > Salmonella < /em > Typhimurium
This study was designed to evaluate the antimicrobial activity of phage-derived endolysin (LysPB32) and depolymerase (DpolP22) against planktonic and biofilm cells of Salmonella Typhimurium (STKCCM). Compared to the control, the numbers of STKCCM were reduced by 4.3 and 5.9 log, respectively, at LysPB32 and LysPB32 + DpolP22 in the presence of polymyxin B (PMB) after 48-h incubation at 37 °C. LysPB32 + DpolP22 decreased the relative fitness (0.8) and the cross-resistance of STKCCM to chloramphenicol (CHL), cephalothin (CEP), ciprofloxacin (CIP), and tetracycline (TET) in the presence of PMB. The MICtrt/MICcon ratios of CH...
Source: Biofouling - October 5, 2023 Category: Molecular Biology Authors: Junhwan Kim Jun Wang Juhee Ahn Source Type: research
Effects of substratum type and orientation on the recruitment of bryozoans in an artificial area of the Western Atlantic
This study investigated bryozoan recruitment on four different substrates (PET, nautical ropes, metal, and PVC) placed in three orientations (vertical, horizontal facing down and facing up) in an area of the Western Atlantic. In total, 15 species of bryozoans were found. The results revealed significant variations in assemblages' richness, with bryozoans showing a preference for settling on PVC (14 species found) and on the underside of horizontal substrates (15 species found), resulting in the higher representativity observed in this study. Cryptogenic (nine species) and exotic (five species) bryozoans dominated the assem...
Source: Biofouling - October 4, 2023 Category: Molecular Biology Authors: Everthon A Xavier Ana C S Almeida Marcos M Nogueira Leandro M Vieira Source Type: research
Effects of substratum type and orientation on the recruitment of bryozoans in an artificial area of the Western Atlantic
This study investigated bryozoan recruitment on four different substrates (PET, nautical ropes, metal, and PVC) placed in three orientations (vertical, horizontal facing down and facing up) in an area of the Western Atlantic. In total, 15 species of bryozoans were found. The results revealed significant variations in assemblages' richness, with bryozoans showing a preference for settling on PVC (14 species found) and on the underside of horizontal substrates (15 species found), resulting in the higher representativity observed in this study. Cryptogenic (nine species) and exotic (five species) bryozoans dominated the assem...
Source: Biofouling - October 4, 2023 Category: Molecular Biology Authors: Everthon A Xavier Ana C S Almeida Marcos M Nogueira Leandro M Vieira Source Type: research
Influence of nutrient enrichment on colonisation and photosynthetic parameters of hard substrate marine microphytobenthos
This study aimed to assess the influence of nutrient enrichment on the development of microalgal biofilm on concrete and PVC cubes. Three mesocosms were utilized to create a nutrient gradient over a period of 28 days. Various parameters including biomass, photosynthetic activity, microtopography, and extracellular polymeric substances (EPS) were measured. Imaging PAM techniques were employed to obtain surface-wide data. Results revealed that nutrient availability had no significant impact on Chl a biomass and the maximum quantum efficiency of PSII (Fv/Fm). The photosynthetic capacity and efficiency were minimally affected ...
Source: Biofouling - October 2, 2023 Category: Molecular Biology Authors: Baptiste Vivier Caroline Faucheux-Bourlot Francis Orvain L éo Chasselin Orianne Jolly Maxime Navon Mohamed Boutouil Didier Goux Jean-Claude Dauvin Pascal Claquin Source Type: research
Influence of nutrient enrichment on colonisation and photosynthetic parameters of hard substrate marine microphytobenthos
This study aimed to assess the influence of nutrient enrichment on the development of microalgal biofilm on concrete and PVC cubes. Three mesocosms were utilized to create a nutrient gradient over a period of 28 days. Various parameters including biomass, photosynthetic activity, microtopography, and extracellular polymeric substances (EPS) were measured. Imaging PAM techniques were employed to obtain surface-wide data. Results revealed that nutrient availability had no significant impact on Chl a biomass and the maximum quantum efficiency of PSII (Fv/Fm). The photosynthetic capacity and efficiency were minimally affected ...
Source: Biofouling - October 2, 2023 Category: Molecular Biology Authors: Baptiste Vivier Caroline Faucheux-Bourlot Francis Orvain L éo Chasselin Orianne Jolly Maxime Navon Mohamed Boutouil Didier Goux Jean-Claude Dauvin Pascal Claquin Source Type: research
Influence of nutrient enrichment on colonisation and photosynthetic parameters of hard substrate marine microphytobenthos
This study aimed to assess the influence of nutrient enrichment on the development of microalgal biofilm on concrete and PVC cubes. Three mesocosms were utilized to create a nutrient gradient over a period of 28 days. Various parameters including biomass, photosynthetic activity, microtopography, and extracellular polymeric substances (EPS) were measured. Imaging PAM techniques were employed to obtain surface-wide data. Results revealed that nutrient availability had no significant impact on Chl a biomass and the maximum quantum efficiency of PSII (Fv/Fm). The photosynthetic capacity and efficiency were minimally affected ...
Source: Biofouling - October 2, 2023 Category: Molecular Biology Authors: Baptiste Vivier Caroline Faucheux-Bourlot Francis Orvain L éo Chasselin Orianne Jolly Maxime Navon Mohamed Boutouil Didier Goux Jean-Claude Dauvin Pascal Claquin Source Type: research
Study on total residual oxidant decay in long-distance seawater intake pipeline of cooling system
In this study, the dynamic circulation and field pilot test were used to simulate the long-distance seawater intake pipeline, investigating total residual oxidant (TRO) decay and its influencing factors by comparing the bench test. The results showed that intermediate dosing could increase terminal TRO, but also reduce the CT value, resulting in decline of local inactivation effect. The initial concentration of dynamic cycle test was higher than that of bench test under the same terminal TRO, and the difference value between the two was affected by holding time. When the initial concentration was greater than 8.5 mg L-1, T...
Source: Biofouling - September 28, 2023 Category: Molecular Biology Authors: Xunzhou Li Dongxia Duan Xiaohui Ji Guofeng Yin Fengqi Xu Tingyong Wang Source Type: research
Study on total residual oxidant decay in long-distance seawater intake pipeline of cooling system
In this study, the dynamic circulation and field pilot test were used to simulate the long-distance seawater intake pipeline, investigating total residual oxidant (TRO) decay and its influencing factors by comparing the bench test. The results showed that intermediate dosing could increase terminal TRO, but also reduce the CT value, resulting in decline of local inactivation effect. The initial concentration of dynamic cycle test was higher than that of bench test under the same terminal TRO, and the difference value between the two was affected by holding time. When the initial concentration was greater than 8.5 mg L-1, T...
Source: Biofouling - September 28, 2023 Category: Molecular Biology Authors: Xunzhou Li Dongxia Duan Xiaohui Ji Guofeng Yin Fengqi Xu Tingyong Wang Source Type: research
Study on total residual oxidant decay in long-distance seawater intake pipeline of cooling system
In this study, the dynamic circulation and field pilot test were used to simulate the long-distance seawater intake pipeline, investigating total residual oxidant (TRO) decay and its influencing factors by comparing the bench test. The results showed that intermediate dosing could increase terminal TRO, but also reduce the CT value, resulting in decline of local inactivation effect. The initial concentration of dynamic cycle test was higher than that of bench test under the same terminal TRO, and the difference value between the two was affected by holding time. When the initial concentration was greater than 8.5 mg L-1, T...
Source: Biofouling - September 28, 2023 Category: Molecular Biology Authors: Xunzhou Li Dongxia Duan Xiaohui Ji Guofeng Yin Fengqi Xu Tingyong Wang Source Type: research
Proximity to built structures on the seabed promotes biofilm development and diversity
This study explores how built structures influence marine biofilms and contributes knowledge on how anthropogenic activity impacts microbiomes on the seabed.PMID:37746691 | DOI:10.1080/08927014.2023.2255141 (Source: Biofouling)
Source: Biofouling - September 25, 2023 Category: Molecular Biology Authors: Rachel L Mugge Chet F Rakocinski Max Woolsey Leila J Hamdan Source Type: research
Proximity to built structures on the seabed promotes biofilm development and diversity
This study explores how built structures influence marine biofilms and contributes knowledge on how anthropogenic activity impacts microbiomes on the seabed.PMID:37746691 | DOI:10.1080/08927014.2023.2255141 (Source: Biofouling)
Source: Biofouling - September 25, 2023 Category: Molecular Biology Authors: Rachel L Mugge Chet F Rakocinski Max Woolsey Leila J Hamdan Source Type: research
Proximity to built structures on the seabed promotes biofilm development and diversity
This study explores how built structures influence marine biofilms and contributes knowledge on how anthropogenic activity impacts microbiomes on the seabed.PMID:37746691 | DOI:10.1080/08927014.2023.2255141 (Source: Biofouling)
Source: Biofouling - September 25, 2023 Category: Molecular Biology Authors: Rachel L Mugge Chet F Rakocinski Max Woolsey Leila J Hamdan Source Type: research
