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Article ; Online: First telomere-to-telomere gapless assembly of the rice blast fungus Pyricularia oryzae.

Li, Zhigang / Yang, Jun / Ji, Xiaobei / Liu, Jintao / Yin, Changfa / Bhadauria, Vijai / Zhao, Wensheng / Peng, You-Liang

Scientific data

2024 Volume 11, Issue 1, Page(s) 380

Abstract: Rice blast caused by Pyricularia oryzae (syn., Magnaporthe oryzae) was one of the most destructive diseases of rice throughout the world. Genome assembly was fundamental to genetic variation identification and critically impacted the understanding of its ...

Abstract	Rice blast caused by Pyricularia oryzae (syn., Magnaporthe oryzae) was one of the most destructive diseases of rice throughout the world. Genome assembly was fundamental to genetic variation identification and critically impacted the understanding of its ability to overcome host resistance. Here, we report a gapless genome assembly of rice blast fungus P. oryzae strain P131 using PacBio, Illumina and high throughput chromatin conformation capture (Hi-C) sequencing data. This assembly contained seven complete chromosomes (43,237,743 bp) and a circular mitochondrial genome (34,866 bp). Approximately 14.31% of this assembly carried repeat sequences, significantly greater than its previous assembled version. This assembly had a 99.9% complement in BUSCO evaluation. A total of 14,982 genes protein-coding genes were predicted. In summary, we assembled the first telomere-to-telomere gapless genome of P. oryzae, which would be a valuable genome resource for future research on the genome evolution and host adaptation.
MeSH term(s)	Ascomycota/genetics ; Chromatin ; Telomere/genetics ; Genome, Fungal
Chemical Substances	Chromatin
Language	English
Publishing date	2024-04-13
Publishing country	England
Document type	Dataset ; Journal Article
ZDB-ID	2775191-0
ISSN	2052-4463 ; 2052-4463
ISSN (online)	2052-4463
ISSN	2052-4463
DOI	10.1038/s41597-024-03209-z
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Article ; Online: New high-density fermentation method for producing high molecular weight polysialic acid based on the combination fermentation strategy.

Yin, Zhongwei / Gao, Lin / Zhu, Li / Peng, Xingqiao / Zhan, Xiaobei

Applied microbiology and biotechnology

2022 Volume 106, Issue 7, Page(s) 2381–2391

Abstract: Polysialic acid (PSA) is a long-chain linear amino polysaccharide with broad application prospects; however, its relatively low molecular weight limits its application range. This study aims to explore a new fermentation method of combining the three- ... ...

Abstract	Polysialic acid (PSA) is a long-chain linear amino polysaccharide with broad application prospects; however, its relatively low molecular weight limits its application range. This study aims to explore a new fermentation method of combining the three-phase pH control strategy, three-phase mixing speed control strategy, and exogenous substance to produce high molecular weight PSA. In brief, Escherichia coli K235 6E61 (CCTCC M208088) was used as a fermentation strain. 3 g·L
MeSH term(s)	Escherichia coli/genetics ; Fermentation ; Humans ; Male ; Molecular Weight ; Prostate-Specific Antigen ; Sialic Acids/chemistry
Chemical Substances	Sialic Acids ; polysialic acid ; Prostate-Specific Antigen (EC 3.4.21.77)
Language	English
Publishing date	2022-03-12
Publishing country	Germany
Document type	Journal Article
ZDB-ID	392453-1
ISSN	1432-0614 ; 0171-1741 ; 0175-7598
ISSN (online)	1432-0614
ISSN	0171-1741 ; 0175-7598
DOI	10.1007/s00253-022-11874-6
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Article ; Online: Association of Gender With Outcomes in Hospitalized Patients With 2019-nCoV Infection in Wuhan.

Han, Huiwu / Peng, Xiaobei / Zheng, Fan / Deng, Guiyuan / Cheng, Xiaocui / Peng, Liming

Frontiers in public health

2021 Volume 9, Page(s) 619482

Abstract: Aim: ...

Abstract	Aim:
MeSH term(s)	Aged ; Anxiety ; COVID-19/epidemiology ; Cough/epidemiology ; Female ; Humans ; Male ; Pandemics ; SARS-CoV-2
Language	English
Publishing date	2021-06-15
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2711781-9
ISSN	2296-2565 ; 2296-2565
ISSN (online)	2296-2565
ISSN	2296-2565
DOI	10.3389/fpubh.2021.619482
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Article ; Online: Effects of mindfulness decompression therapy on mental health and job burnout among nurses working in the frontline of the novel coronavirus pandemic: A retrospective study.

Luo, Ling Xia / Peng, Xiaobei / Hou, Jianmei / Xie, Yanhui / Dong, Huiqian / Peng, Sha / Ma, Guiyuan / Zhang, Jinghui

Journal of occupational health

2023 Volume 65, Issue 1, Page(s) e12398

Abstract: Objectives: As the coronavirus disease 2019 (COVID-19) pandemic continues to spread worldwide, nucleic acid detection is a key step in controlling it. Psychological issues and job burnout of nurses working in nucleic acid sampling roles for long periods ...

Abstract	Objectives: As the coronavirus disease 2019 (COVID-19) pandemic continues to spread worldwide, nucleic acid detection is a key step in controlling it. Psychological issues and job burnout of nurses working in nucleic acid sampling roles for long periods have become apparent. This study aimed to explore the effects of mindfulness decompression therapy on mental health and job burnout in front-line nurses working in nucleic acid sampling during the pandemic. Methods: Nucleic acid sampling frontline nurses who were positive for burnout on both the Symptom Checklist-90 (SCL-90) and the Maslach Burnout Inventory-General Scale (MBI-GS) were selected as the participants. Frontline nurses in the nucleic acid testing area who received routine psychological nursing intervention from June 2020 to April 2021 were used as the control group. Nurses who received both routine psychological nursing and mindfulness decompression therapy from May 2021 to December 2021 formed the "mindfulness" subject group. We compared the two groups' primary outcome measures of SCL-90 and MBI-GS scores. Results: Before the intervention, there were no significant differences between the two groups in general data, SCL-90 scores, and MBI-GS scores. After the mindfulness decompression therapy, according to SCL-90 and MBI-GS scales, psychological distress and job burnout of nurses in the mindfulness group were significantly better than those in the control group. Conclusion: Mindfulness decompression therapy can effectively improve mental health and relieve job burnout in frontline nurses in nucleic acid sampling areas, which is worthy of clinical application. Randomized controlled trials are still needed, however, to fully confirm the effects of mindfulness decompression therapy.
MeSH term(s)	Humans ; Retrospective Studies ; Pandemics ; Mental Health ; COVID-19/therapy ; Burnout, Professional/epidemiology ; Burnout, Psychological ; SARS-CoV-2 ; Decompression
Language	English
Publishing date	2023-04-01
Publishing country	Australia
Document type	Journal Article
ZDB-ID	1340985-2
ISSN	1348-9585 ; 1341-9145
ISSN (online)	1348-9585
ISSN	1341-9145
DOI	10.1002/1348-9585.12398
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Article ; Online: NEWS can predict deterioration of patients with COVID-19.

Peng, Xiaobei / Subbe, Christian P / Zhang, Lei / Luo, Zhen / Peng, Lingli

Resuscitation

2020 Volume 152, Page(s) 26–27

MeSH term(s)	Betacoronavirus ; COVID-19 ; China ; Coronavirus Infections ; Humans ; Intensive Care Units ; Pandemics ; Pneumonia, Viral ; SARS-CoV-2
Keywords	covid19
Language	English
Publishing date	2020-05-12
Publishing country	Ireland
Document type	Letter ; Comment
ZDB-ID	189901-6
ISSN	1873-1570 ; 0300-9572
ISSN (online)	1873-1570
ISSN	0300-9572
DOI	10.1016/j.resuscitation.2020.05.011
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Article ; Online: Enhanced stability of the bactericidal activity of nisin through conjugation with gellan gum.

Peng, Xingqiao / Zhu, Li / Wang, Zhihai / Zhan, Xiaobei

International journal of biological macromolecules

2020 Volume 148, Page(s) 525–532

Abstract: Nisin is a high-efficiency Gram-positive bacterium-targeted antimicrobial peptide widely used in the food industry. However, its antibacterial activity can be attenuated in specific niches, and its biomedical applications are limited. Herein, nisin was ... ...

Abstract	Nisin is a high-efficiency Gram-positive bacterium-targeted antimicrobial peptide widely used in the food industry. However, its antibacterial activity can be attenuated in specific niches, and its biomedical applications are limited. Herein, nisin was covalently bonded with gellan gum, a biocompatible polysaccharide. The antibacterial stability of nisin was also verified to be effectively enhanced. After nisin was conjugated with gellan, the antibacterial duration of nisin against Staphylococcus epidermidis increased from 96 h to 216 h under acidic conditions and from 48 h to 144 h under alkaline conditions. The antibacterial activity of gellan-nisin conjugate was also not lost with either heat alkali treatment at 80 °C or chymotrypsin digestion. Hemolysis and cytotoxicity tests also confirmed the good biocompatibility of this conjugate. This conjugate could be a promising biomaterial for medical applications, such as wound dressings and implant coatings.
MeSH term(s)	Animals ; Anti-Bacterial Agents/chemistry ; Anti-Bacterial Agents/pharmacology ; Bacteria/drug effects ; Cell Line ; Drug Stability ; Mice ; Microbial Sensitivity Tests ; Nisin/chemistry ; Nisin/pharmacology ; Polysaccharides, Bacterial/chemistry ; Spectrum Analysis
Chemical Substances	Anti-Bacterial Agents ; Polysaccharides, Bacterial ; Nisin (1414-45-5) ; gellan gum (7593U09I4D)
Language	English
Publishing date	2020-01-18
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2020.01.164
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Article ; Online: Improving the hygroscopicity and flame retardancy of polyamide 6 fabrics by surface coating with β-FeOOH and sulfamic acid.

Liu, Jian / Qi, Peng / Chen, Feng / Li, Xiaobei / Zhang, Jingfan / Qian, Lijun / Gu, Xiaoyu / Sun, Jun / Zhang, Sheng

Chemosphere

2023 Volume 335, Page(s) 139115

Abstract: The combustion of polyamide 6 (PA6) fabrics releases toxic smoke, which will pollute the environment and threaten human life and health. Herein, a novel eco-friendly flame-retardant coating was constructed and applied to PA6 fabrics. Needle-like β-FeOOH ... ...

Abstract	The combustion of polyamide 6 (PA6) fabrics releases toxic smoke, which will pollute the environment and threaten human life and health. Herein, a novel eco-friendly flame-retardant coating was constructed and applied to PA6 fabrics. Needle-like β-FeOOH with a high surface area was firstly constructed onto the surface of PA6 fabrics by the hydrolysis of Fe
MeSH term(s)	Humans ; Wettability ; Flame Retardants ; Gases ; Halogens ; Oxygen
Chemical Substances	sulfamic acid (9NFU33906Q) ; akaganeite ; nylon 6 (25038-54-4) ; Flame Retardants ; Gases ; Halogens ; Oxygen (S88TT14065)
Language	English
Publishing date	2023-06-01
Publishing country	England
Document type	Journal Article
ZDB-ID	120089-6
ISSN	1879-1298 ; 0045-6535 ; 0366-7111
ISSN (online)	1879-1298
ISSN	0045-6535 ; 0366-7111
DOI	10.1016/j.chemosphere.2023.139115
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Article: Enhanced stability of the bactericidal activity of nisin through conjugation with gellan gum

Peng, Xingqiao / Zhu, Li / Wang, Zhihai / Zhan, Xiaobei

International journal of biological macromolecules. 2020 Apr. 01, v. 148

2020

Abstract	Nisin is a high-efficiency Gram-positive bacterium-targeted antimicrobial peptide widely used in the food industry. However, its antibacterial activity can be attenuated in specific niches, and its biomedical applications are limited. Herein, nisin was covalently bonded with gellan gum, a biocompatible polysaccharide. The antibacterial stability of nisin was also verified to be effectively enhanced. After nisin was conjugated with gellan, the antibacterial duration of nisin against Staphylococcus epidermidis increased from 96 h to 216 h under acidic conditions and from 48 h to 144 h under alkaline conditions. The antibacterial activity of gellan–nisin conjugate was also not lost with either heat alkali treatment at 80 °C or chymotrypsin digestion. Hemolysis and cytotoxicity tests also confirmed the good biocompatibility of this conjugate. This conjugate could be a promising biomaterial for medical applications, such as wound dressings and implant coatings.
Keywords	Staphylococcus epidermidis ; alkali treatment ; antibacterial properties ; antimicrobial peptides ; biocompatibility ; biocompatible materials ; chemical bonding ; chymotrypsin ; coatings ; cytotoxicity ; enzymatic hydrolysis ; food industry ; gellan gum ; heat ; hemolysis ; niches ; nisin
Language	English
Dates of publication	2020-0401
Size	p. 525-532.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2020.01.164
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Article ; Online: Improving the hygroscopicity and flame retardancy of polyamide 6 fabrics by surface coating with β-FeOOH and sulfamic acid

Liu, Jian / Qi, Peng / Chen, Feng / Li, Xiaobei / Zhang, Jingfan / Qian, Lijun / Gu, Xiaoyu / Sun, Jun / Zhang, Sheng

Chemosphere. 2023 Sept., v. 335 p.139115-

2023

Abstract	The combustion of polyamide 6 (PA6) fabrics releases toxic smoke, which will pollute the environment and threaten human life and health. Herein, a novel eco-friendly flame-retardant coating was constructed and applied to PA6 fabrics. Needle-like β-FeOOH with a high surface area was firstly constructed onto the surface of PA6 fabrics by the hydrolysis of Fe³⁺, sulfamic acid (SA) was then introduced by a facile dipping and nipping method. The growth of β-FeOOH also endowed the PA6 fabrics with certain hydrophilicity and moisture permeability, resulting in improved comfortability. The limiting oxygen index (LOI) of the prepared PA6/Fe/6SA sample was increased to 27.2% from 18.5% of control PA6 sample, and the damaged length was reduced to only 6.0 cm from 12.0 cm of control PA6 sample. Meanwhile, the melt dripping was also eliminated. The heat release rate and total heat release values of the PA6/Fe/6SA sample were decreased to 318.5 kW/m² and 17.0 MJ/m², respectively, compared with those of control PA6 (494.7 kW/m² and 21.4 MJ/m²). The analysis results indicated that nonflammable gases diluted flammable gases. The observation of char residues demonstrated that the stable char layer was formed, which effectively inhibited the transfer of heat and oxygen. The organic solvent-free coating does not contain any conventional halogens/phosphorus elements, which provides a useful methodology to produce environmentally friendly flame-retardant fabrics.
Keywords	combustion ; heat ; humans ; hydrolysis ; hydrophilicity ; hygroscopicity ; oxygen ; permeability ; phosphorus ; polyamides ; smoke ; surface area ; toxicity ; Flame retardant ; Moisture permeability ; PA6 fabrics
Language	English
Dates of publication	2023-09
Publishing place	Elsevier Ltd
Document type	Article ; Online
ZDB-ID	120089-6
ISSN	1879-1298 ; 0045-6535 ; 0366-7111
ISSN (online)	1879-1298
ISSN	0045-6535 ; 0366-7111
DOI	10.1016/j.chemosphere.2023.139115
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Article: New high-density fermentation method for producing high molecular weight polysialic acid based on the combination fermentation strategy

Yin, Zhongwei / Gao, Lin / Zhu, Li / Peng, Xingqiao / Zhan, Xiaobei

Applied microbiology and biotechnology. 2022 Apr., v. 106, no. 7

2022

Abstract	Polysialic acid (PSA) is a long-chain linear amino polysaccharide with broad application prospects; however, its relatively low molecular weight limits its application range. This study aims to explore a new fermentation method of combining the three-phase pH control strategy, three-phase mixing speed control strategy, and exogenous substance to produce high molecular weight PSA. In brief, Escherichia coli K235 6E61 (CCTCC M208088) was used as a fermentation strain. 3 g·L⁻¹ Na₅P₃O₁₀ was added to the initial medium. At 0–12 h, the mixing speed was controlled to 250 r·min⁻¹, and the pH was maintained at 7.2. At 12–20 h, the mixing speed was increased to 400 r·min⁻¹, the pH was changed to 6.8, and 0.75% n-hexadecane was added at hour 16. After 20 h, the mixing speed was adjusted to 250 r·min⁻¹; the pH was restored to 7.2. Air flow was regulated to 1.2 vvm throughout the experiment. The combination fermentation strategy greatly improved the molecular weight of PSA up to 498 kDa at 32 h, which is currently the maximum molecular weight of PSA produced through microbial fermentation. The yield of PSA reached 6.27 g·L⁻¹ at the end of fermentation (36 h), which is also currently the highest yield of PSA produced by natural bacteria. Therefore, the proposed strategy could simultaneously increase the molecular weight and yield of PSA and is of great importance to the industrial production of high molecular weight PSA. Key points • A new fermentation process was explored to produce high molecular weight PSA. • The yield and molecular weight were improved by the combination fermentation strategy. • The maximum molecular weight and highest yield of PSA were obtained.
Keywords	Escherichia coli ; air flow ; biotechnology ; fermentation ; hexadecane ; molecular weight ; pH ; polysaccharides
Language	English
Dates of publication	2022-04
Size	p. 2381-2391.
Publishing place	Springer Berlin Heidelberg
Document type	Article
ZDB-ID	392453-1
ISSN	1432-0614 ; 0171-1741 ; 0175-7598
ISSN (online)	1432-0614
ISSN	0171-1741 ; 0175-7598
DOI	10.1007/s00253-022-11874-6
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