Article
Microbiology
Diogo A. M. Alexandrino, Ana P. Mucha, Maria Paola Tomasino, C. Marisa R. Almeida, Maria F. Carvalho
Summary: This study demonstrated that a co-culture of Hydrogenophaga eletricum and Methylobacillus sp. was the most efficient in degrading epoxiconazole, while none of the tested bacterial combinations showed potential to biodegrade fludioxonil. Metabarcoding analysis indicated that the biodegradation of epoxiconazole may be driven by less abundant phylotypes in the community.
Article
Engineering, Environmental
Peiyuan Wang, Jiaxi Liu, Siqi Han, Yufan Wang, Yifan Duan, Tingting Liu, Lijun Hou, Zengqiang Zhang, Li Li, Yanbing Lin
Summary: This study aims to investigate the succession of bacterial community in the plastisphere and find the most efficient combination of bacteria for degrading plastics through co-culture. The results show that the diversity of bacterial community in the plastisphere is significantly lower and the community structure is regularly altered. Additionally, three PMF-degrading bacterial strains were selected and the best combination for PMF degradation was identified. This study provides a new possibility for mitigating plastic pollution in agricultural land from the perspective of plastisphere-related research.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Microbiology
Marco Antonio Lopez Marin, Michal Strejcek, Petra Junkova, Jachym Suman, Jiri Santrucek, Ondrej Uhlik
Summary: The study shows that using a Micrococcus luteus culture supernatant containing resuscitation-promoting factor (SRpf) can increase the number and diversity of cultured bacterial taxa from a nutrient-rich compost soil. After SRpf treatment, potentially novel bacterial species were isolated, demonstrating the effectiveness of SRpf in enhancing the growth of soil bacterial species.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Xue-Jing Huang, Huan Du, Xiao-Long Deng, Yong-Hong Chen, Lei Xiang, Yan-Wen Li, Hui Li, Ce-Hui Mo, Quan-Ying Cai, Hai-Ming Zhao
Summary: The study investigated the successional variation of bacterial community and metabolism during the enrichment culture of a phthalate-degrading consortium. Results showed a significant increase in extracellular polymeric substances (EPS) during domestication, while bacterial richness and diversity decreased significantly. Proteobacteria and Bacteroidetes became dominant phyla associated with phthalate tolerance and degradation. The microbial interaction networks revealed a coexistence of mutualism and competition among members of the bacterial consortium.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Microbiology
Siang Chen Wu, Jian-Kai Gao, Bo-Sheng Chang
Summary: Bioremediation for lindane and endosulfan removal is cost-effective and depends on isolating degrading microorganisms. This study compared culture-dependent and culture-independent methods to analyze bacterial communities in enrichment cultures of lindane and endosulfan. Results suggest developing a specific and efficient microbial isolation method is necessary for studying representative degrading bacteria.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Immunology
Jiangliu Yang, Fang Jia, Yarui Qiao, Zhenzhen Hai, Xuezhang Zhou
Summary: Bacterial extracellular vesicles (BEVs) are proteoliposome nanoparticles secreted by both Gram-negative and Gram-positive bacteria. They play important roles in various physiological processes of bacteria and have shown great promise as a new approach to antibiotics and drug delivery in antimicrobial strategies. In this review, recent scientific advances in BEVs and antibiotics are summarized, including BEV biogenesis, bacterial killing ability, potential for delivering antibiotics, and their role in vaccine development or as immune adjuvants. BEVs provide a novel antimicrobial strategy against the increasing threat of antibiotic resistance.
MICROBIAL PATHOGENESIS
(2023)
Article
Food Science & Technology
Junghyun Park, Sojeong Heo, Hong-Eun Na, Gawon Lee, Tao Kim, Moon-Hee Sung, Do-Won Jeong
Summary: The effects of adding jogi fish on the bacterial community of baechu-kimchi were studied using culture-dependent and culture-independent techniques. The viable bacteria count increased during fermentation, and Latilactobacillus sakei and Leuconostoc mesenteroides were dominant in both types of kimchi. However, in culture-dependent analysis, only Leuconostoc mesenteroides was found. The addition of jogi did not induce changes in bacterial communities, except for the presence of Carnobacterium inhibens in the early stages of kimchi fermentation.
Editorial Material
Plant Sciences
Giulia Daly, Francesca Decorosi, Carlo Viti, Alessandra Adessi
Summary: The phycosphere is a unique niche that promotes complex interactions between microalgae and associated bacteria through the secretion of extracellular polymers. This study investigates how interactions between the diatom Phaeodactylum tricornutum and the bacterium Pseudoalteromonas haloplanktis modify the composition of their extracellular environment. The results demonstrate that microalgal-bacterial interactions significantly influence the architecture of their extracellular environment, as evidenced by variations in the EPS monosaccharide profiles under different culture conditions and incubation times.
JOURNAL OF PHYCOLOGY
(2023)
Article
Engineering, Chemical
Abirami Balakrishnan, Sri Bala Kameswari Kanchinadham, Chitra Kalyanaraman
Summary: Studies have shown that adding tannase enzyme can improve the efficiency of aerobic microbes in the treatment of tannery effluent, significantly increasing tannin removal rates. This finding is important for enhancing the operation and efficiency of tannery effluent treatment plants.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Multidisciplinary Sciences
Jeonggil Lee, Han-Suk Kim, Ho Young Jo, Man Jae Kwon
Summary: Different methods have been explored for quantifying soil bacteria, with challenges in identifying the optimal approach. Storage temperature and pretreatment methods play a crucial role in preserving bacterial viability and reducing interference from soil particles. Among the counting methods evaluated in this study, the most probable number (MPN) was rapid and reliable, but may underestimate anaerobic bacteria. DNA quantitation method tended to overestimate bacterial numbers.
Article
Food Science & Technology
Junghyun Park, Sojeong Heo, Gawon Lee, Sung Wook Hong, Do-Won Jeong
Summary: This study analyzed the bacterial diversity of baechu-kimchi with and without seafood. The results showed that the addition of seafood did not significantly affect the bacterial community in baechu-kimchi.
FOOD SCIENCE AND BIOTECHNOLOGY
(2023)
Article
Microbiology
Yali Wei, Fang Wang, Jiangli Gao, Yaolong Huang, Wei Ren, Hongmei Sheng
Summary: The study investigated the bacterial community diversities in different types of sandy lands in Minqin, where high salinity and poor nutrition create an oligotrophic environment. The presence of host plants primarily shapes the bacterial community, with Actinobacteria, Firmicutes, Proteobacteria, Bacteroidetes, and other phyla dominating in the rhizospheres of Nitraria tangutorum and Haloxylon ammodendron.
Article
Biotechnology & Applied Microbiology
Tao Kim, Sojeong Heo, Hong-Eun Na, Gawon Lee, Jong-Hoon Kim, Mi-Sun Kwak, Moon-Hee Sung, Do-Won Jeong
Summary: This study compared the bacterial community of galchi-baechu kimchi using culture-based and culture-independent techniques. The results showed discrepancies between the two methods. By evaluating Bacillus strains, four safe starter candidates for fermented foods were selected.
JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Engineering, Environmental
Andras Tancsics, Sinchan Banerjee, Andre Soares, Anna Bedics, Balazs Kriszt
Summary: Xylenes, particularly the ortho and para isomers, are known to be the least biodegradable among monoaromatic hydrocarbons in oxygen-limited subsurface environments. However, little is known about the diversity of bacteria capable of degrading xylene isomers under microaerobic conditions. To address this, aerobic and microaerobic xylene-degrading enrichment cultures were established, and the associated bacterial communities were analyzed. The results showed significant differences in the composition of the bacterial communities between aerobic and microaerobic conditions, with the genus Pseudomonas being dominant in both, but Rhodoferax and Azovibrio lineages only abundant under microaerobic conditions, while Sphingobium completely replaced them under aerobic conditions. The study also identified specific enzymes and their types that play a role in xylene degradation under different oxygen conditions, revealing the importance of aromatic ring activation, types of dioxygenases, and the ability to respire nitrate for xylene degraders.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Limnology
Judith Piontek, Luisa Galgani, Eva-Maria Noethig, Ilka Peeken, Anja Engel
Summary: Research shows that the Arctic Ocean is highly sensitive to climate change with rapid ice loss, leading to changes in dissolved organic matter production and inventories that have the potential to enhance bacterial remineralization in seawater and sea ice.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Jiafang Cai, Aodong Pan, Yilin Li, Yeyuan Xiao, Yan Zhou, Chongjun Chen, Faqian Sun, Xiaomei Su
Summary: The study explored a novel method of using resuscitation-promoting factors (Rpfs) to enhance the degradation efficiency of the dye RB19 in anaerobic processes. Results showed that Rpfs efficiently promoted RB19 decolorization, increasing decolorization efficiency by over 20%. Additionally, Rpfs appeared to stimulate and enrich dye-degrading species of the family Peptostreptococcaceae, leading to higher RB19 decolorization efficiency.
Article
Biotechnology & Applied Microbiology
Mengqi Xie, Luning Xu, Rong Zhang, Yan Zhou, Yeyuan Xiao, Xiaomei Su, Chaofeng Shen, Faqian Sun, Muhammad Zaffar Hashmi, Hongjun Lin, Jianrong Chen
Summary: The study revealed that a yeast strain capable of degrading phenol entered the viable but nonculturable (VBNC) state under high concentrations of contaminants, and the resuscitation of VBNC cells restored their degradation performance. Compared to normal cells, significant morphological, surface, and physiological changes were observed in the VBNC cells.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Review
Environmental Sciences
Muhammad Zaffar Hashmi, Muhammad Kalim, Umar Farooq, Xiaomei Su, Paromita Chakraborty, Shams Ur Rehman
Summary: This review paper discusses the recent development in photocatalytic and chemical techniques for the remediation of PCBs in contaminated soils. Advanced oxidation is found to be an efficient remediation technique with high removal efficiency of PCBs. Persulfate oxidation is identified as a suitable technique that can work under normal environmental conditions. Factors such as pH, temperature, and the use of surfactants and organic solvents affect the effectiveness of these techniques.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Siying Sun, Jiabao Ren, Jiale Liu, Liang Rong, Hangli Wang, Yeyuan Xiao, Faqian Sun, Rongwei Mei, Chongjun Chen, Xiaomei Su
Summary: The study found that pyrite-activated persulfate oxidation efficiently removed organic matter from the effluent of a biological landfill leachate treatment system, and subsequent denitrification was also successful. With the optimal parameters, a COD removal efficiency of about 45% and a nitrate removal rate of around 108 mg L-1 d(-1) were achieved.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Yilin Li, Wenjia Zhang, Yun Dai, Xiaomei Su, Yeyuan Xiao, Dan Wu, Faqian Sun, Rongwu Mei, Jianrong Chen, Hongjun Lin
Summary: This study investigated the start-up, influencing factors, and stable operation of partial denitrification for treating biological effluent from landfill leachate. The research found a suitable ratio of nitrate/ammonium for downstream Anammox process, and highlighted the importance of carbon sources, COD/NO3--N ratio, and salinity in partial denitrification.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Qihua Lin, Xinru Zhou, Shusheng Zhang, Junliang Gao, Mengqi Xie, Linqin Tao, Faqian Sun, Chaofeng Shen, Muhammad Zaffar Hashmi, Xiaomei Su
Summary: Functional microorganisms in a viable but non-culturable state limit the study of PCB-degrading strains. This study found that the resuscitated strain SPC0 from genus Streptococcus has the potential to degrade PCBs through the biphenyl pathway, highlighting the powerful capability of resuscitated strains for bioremediation of PCB-contaminated sites.
ENVIRONMENTAL RESEARCH
(2022)
Review
Biotechnology & Applied Microbiology
Mayada Jamal, Annoor Awadasseid, Xiaomei Su
Summary: Anthraquinone dyes, widely used in textile manufacturing, pose a significant pollution threat due to their complex and stable structures. Microbiological treatment of wastewater has emerged as an economically viable solution, with promising advances in the biodegradation of anthraquinone dyes.
BIOTECHNOLOGY LETTERS
(2022)
Article
Biotechnology & Applied Microbiology
Xiaomei Su, Mengqi Xie, Zhen Han, Yeyuan Xiao, Rui Wang, Chaofeng Shen, Muhammad Zaffar Hashmi, Faqian Sun
Summary: This study discovered the enhancement of Rpf on the anaerobic microbial dechlorination of PCE/PCBs and uncovered the underlying Rpf-responsive populations. It reveals the possibility of rapidly enriching active dechlorinating cultures through Rpf amendment, providing a new approach for massively enriching PCB dechlorinators in short periods of time.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Environmental Sciences
Zhen Han, Qihua Lin, Shusheng Zhang, Xinru Zhou, Si Li, Faqian Sun, Chaofeng Shen, Xiaomei Su
Summary: The study found that the resuscitated strain LS1 has the potential to degrade polychlorinated biphenyls (PCBs), with better performance in degrading PCB 18 and 52. LS1 exhibited lower efficiency in degrading PCB 77. Additionally, LS1 can survive and remain culturable in PCB-contaminated soil for up to 70 days.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Xinru Zhou, Shusheng Zhang, Rui Wang, Zijing An, Faqian Sun, Chaofeng Shen, Hongjun Lin, Xiaomei Su
Summary: The study found that Rpf of Micrococcus luteus can resuscitate and stimulate the growth of PCB-degrading bacterial populations, thereby improving the bioremediation efficiency of PCBs. Soil microcosms amended with Rpf and LS1 degraded PCBs 1.1-3.2 times faster than control microcosms. The degradation process mainly occurred through the HOPDA-benzoate-catechol/protocatechuate pathways. These results suggest that Rpf and resuscitated strains serve as effective additives and bio-inoculants for enhanced bioremediation, providing new approaches for large-scale applications of in situ bioremediation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Qihua Lin, Jiayan Ding, Yingying Yang, Faqian Sun, Chaofeng Shen, Hongjun Lin, Xiaomei Su
Summary: The feasibility of utilizing an immobilization approach to enhance the PCBs degradation performance of a resuscitated strain Streptococcus sp. SPC0 was evaluated in this study. The results showed that the mixed matrix of polyvinyl alcohol (PVA) and sodium alginate (SA) provided a porous microstructure for SPC0 colonization and proliferation, leading to enhanced removal of PCBs through simultaneous adsorption and biodegradation. Immobilized SPC0 demonstrated 1.0-7.1 times higher PCB removal than free cells, with higher concentrations achieving more effective removal. Moreover, the immobilized SPC0 showed excellent stability and reusability after four cycles of reuse.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Rong Zhang, Min Zhang, Huaqian Mou, Zijing An, Hailu Fu, Xiaomei Su, Chongjun Chen, Jianrong Chen, Hongjun Lin, Faqian Sun
Summary: Kitchen waste biochar showed better performance in thermophilic co-digestion, reducing the digestion time and increasing methane production. It also improved the microbial community structure and enhanced the acetoclastic methanogenesis in thermophilic co-digestion.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Rui Wang, Zijing An, Lu Fan, Yan Zhou, Xiaomei Su, Junjie Zhu, Qian Zhang, Chongjun Chen, Hongjun Lin, Faqian Sun
Summary: Quorum quenching (QQ) is a novel technique for controlling biofouling in membrane bioreactors (MBRs) by disrupting quorum sensing (QS) and inhibiting biofilm formation. This study evaluated the effectiveness of the QQ strain Brucella sp. ZJ1, encapsulated in alginate beads, in mitigating biofouling. The results showed that MBR with QQ beads extended operation time by 2-3 times without affecting pollutant degradation, and these beads maintained approximately 50% QQ activity even after 50 days of operation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Junliang Gao, Rui Wang, Yilin Li, Huimin Huang, Xiaomei Su, Zijing An, Wenjun Yin, Lizhen Yang, Liang Rong, Faqian Sun
Summary: The effect of two aeration modes in the aerobic phase on nitrogen removal and N2O emission in treating landfill leachate was compared. Increasing dissolved oxygen showed positive effects on nitrogen removal and minimized N2O emission. However, high dissolved oxygen concentration reduced nitrogen removal and led to high N2O emission.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Mengqi Xie, Yilin Li, Luning Xu, Shusheng Zhang, Hongyu Ye, Faqian Sun, Rongwu Mei, Xiaomei Su
Summary: This study optimized Rpf production using the RSM method and found that the highest Rpf protein yield could be obtained under certain conditions. Additionally, the Phyre2 web portal characterized the structure of the Rpf domain to have shared homology with lysozymes, with the highest lysozyme activity achievable under specific conditions.
