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Xie S, Wang C, Zeng T, Wang H, Suo H. Whole-genome and comparative genome analysis of Mucor racemosus C isolated from Yongchuan Douchi. Int J Biol Macromol 2023; 234:123397. [PMID: 36739051 DOI: 10.1016/j.ijbiomac.2023.123397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 01/10/2023] [Accepted: 01/18/2023] [Indexed: 02/05/2023]
Abstract
Mucor racemosus is the predominant fungal in the zhiqu stage of the fermentation of Yongchuan Douchi (Mucor-type), which plays an important role in the fermentation process of Yongchuan Douchi. However, there is a lack of information on the genetic analysis of M. racemosus. In this study, we isolated and identified M. racemosus C (accession no JAPEHQ000000000) from Yongchuan Douchi and analyzed the physiological indicators, then genomic information of the strain to perform a comprehensive analysis of its fermentation capacity and safety. M. racemosus C had neutral protease activity up to 68.051 U/mL at 30 °C and alkaline protease activity up to 57.367 U/mL at 25 °C. In addition, comparing the genomic data with the COGs database (NCBI), it was predicted that M. racemosus C undergoes extensive amino acid metabolism, making C suitable for the production of fermented foods (e.g., Douchi, Syoyu, and sufu). Finally, we performed virulence genes and resistance genes analysis, hemolysis experiment, aflatoxins assay, antibiotic resistance assay to evaluate the safety of M. racemosus C, and the results showed that M. racemosus C was safe, non-toxin-producing and non-hemolytic.
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Affiliation(s)
- Shicai Xie
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China
| | - Chen Wang
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China
| | - Tao Zeng
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China
| | - Hongwei Wang
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China.
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Kottarathil M, Thayanidhi P, P S, Jyoti Kindo A. Rise of mucormycosis during the COVID-19 pandemic and the challenges faced. Curr Med Mycol 2023; 9:44-55. [PMID: 37867589 PMCID: PMC10590187 DOI: 10.18502/cmm.2023.345032.1400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 10/24/2023] Open
Abstract
Mucormycosis (previously called zygomycosis) is a diverse group of increasingly recognized and frequently fatal mycotic diseases caused by members of the class zygomycetes. Mucormycosis is around 80 times more common in India, compared to other developed countries, with a frequency of 0.14 cases per 1,000 population. The most frequent causative agent of mucormycosis is the following genera from the Order Mucorales Rhizopus, Mucor, Rhizomucor, Absidia, Apophysomyces, Cunninghamella, and Saksenaea. The major risk factors for the development of mucormycosis are diabetic ketoacidosis, deferoxamine treatment, cancer, solid organ or bone marrow transplantations, prolonged steroid use, extreme malnutrition, and neutropenia. The common clinical forms of mucormycosis are rhino-orbital-cerebral, pulmonary, cutaneous, and gastrointestinal. During the second wave of COVID-19, there was a rapid increase in mucormycosis with more severity than before. Amphotericin B is currently found to be an effective drug as it is found to have a broad-spectrum activity and posaconazole is used as a salvage therapy. Newer triazole isavuconazole is also found effective against mucormycosis. This study aimed to review various studies on the laboratory diagnosis and treatment of mucormycosis.
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Affiliation(s)
- Malavika Kottarathil
- Department of Microbiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Premamalini Thayanidhi
- Department of Microbiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Sathyamurthy P
- Department of General Medicine, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Anupma Jyoti Kindo
- Department of Microbiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
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Zhou H, Qi X, Cai J, Liu W, Kang C, Zhang G, Wang M, Xie X, Liang C, Liu L, Gao J, Yuan W, Mei X, Guo S. A case of pulmonary mucormycosis presented with cardiac arrest. World J Emerg Med 2023; 14:484-487. [PMID: 37969218 PMCID: PMC10632759 DOI: 10.5847/wjem.j.1920-8642.2023.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/26/2023] [Indexed: 11/17/2023] Open
Affiliation(s)
- Haijiang Zhou
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Xuan Qi
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Jifei Cai
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Wenxin Liu
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Chenyu Kang
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Guyu Zhang
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Miaomiao Wang
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Xuefei Xie
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Chao Liang
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Lihua Liu
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Jie Gao
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Wei Yuan
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Xue Mei
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
| | - Shubin Guo
- Emergency Medicine Clinical Research Center, Beijing Chao-yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardio-Pulmonary Cerebral Resuscitation, Beijing 100020, China
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