Article
Biochemistry & Molecular Biology
Selvakumar Sakthivel, Anand Raj Dhanapal, Radha Palaniswamy, Soundarya Dhandapani, Mathur Nadarajan Kathiravan
Summary: This study identified a novel bacterial species isolated from pesticide-contaminated soil that enhances endosulfan degradation. The optimal conditions for biodegradation were determined, and it was found that endosulfan acted as the primary carbon source for bacterial growth. The bacterial isolate Pseudomonas sp. MSCAS BT01 showed promising potential for bioremediation of endosulfan-contaminated environments.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Yichao Gu, Tao Li, Ning-Yi Zhou
Summary: This study investigated the genetic determinants for the complete degradation of coumarin by Pseudomonas sp. strain NyZ480 and identified the enzymes involved in the conversion of coumarin to dihydrocoumarin and the subsequent degradation pathway. These findings provide important insights into the understanding of the complete degradation mechanism of coumarin by Pseudomonas sp. strain NyZ480.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Letter
Engineering, Environmental
Juan Guzman
Summary: The authors isolated a polystyrene-degrading bacterium from the gut of a superworm and identified it as Pseudomonas aeruginosa DSM 50071. However, claiming that the isolated strain is the same as the original DSM 50071 strain is misleading. Additional steps should be taken to label and identify the strain accurately.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Agricultural Engineering
Saddam Hussain Mohammad, Bhima Bhukya
Summary: This study successfully utilized Pseudomonas putida KT2440 to valorize lignin and its derivatives, and synthesized bio-polymers without any genetic manipulation.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Rajesh Kona, Pavankumar Pallerla, Ramunaidu Addipilli, Prabhakar Sripadi, S. Venkata Mohan
Summary: The study evaluated the biosynthesis of lutein and beta-carotene by Scenedesmus sp. SVMIICT1 under different light intensities, finding that high lutein content was observed at 50 and 500 mu E/m(2)/s conditions. The study also showed that light intensities altered photosystem II and photosystem I in the algae.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Shuaiguo Li, Kejian Tian, Qing Qiu, Yue Yu, Han Li, Menghan Chang, Xuejian Sun, Jinming Gu, Fenglin Zhang, Yibing Wang, Hongliang Huo
Summary: As a widespread pollutant, BPA poses a serious threat to the ecosystem and human health. This study discovered that Pseudomonas sp. P1 has a high BPA degradation rate, with 96.89% degradation within 120 hours. Whole genome sequencing revealed that strain P1 has a single circular chromosome with 6.17 Mb length and 5636 predicted coding genes. Comparative genomic analysis showed that strain P1 contains 210 functional genes related to BPA degradation. Furthermore, the study identified the degradation pathways of BPA by Pseudomonas and discovered a new metabolite, 4-vinylphenol.
Article
Biology
Abdul Fattah Shaima, Nazlina Haiza Mohd Yasin, Nazlina Ibrahim, Mohd Sobri Takriff, Darvien Gunasekaran, Mahmud Y. Y. Ismaeel
Summary: Microalgae are promising sources of bioactive compounds for various applications. In this study, the antimicrobial properties and bioactive compounds of local microalgae were investigated. Chlorella sp. UKM8 methanol extract showed the highest antibacterial activity and contained phenol, hexadecanoic acid, phytol, and other compounds known for their antimicrobial activity. Further studies are needed to purify and understand the mechanism of these compounds.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Environmental Sciences
Mette Torsbjerg Moller, Heidi Birch, Karina Knudsmark Sjoholm, Rikke Hammershoj, Karen Jenner, Philipp Mayer
Summary: Testing and assessing the persistency, bioaccumulative and toxic properties of UVCBs pose major technical and analytical challenges. This study successfully combined whole substance biodegradation testing with constituent-specific analytics to determine primary biodegradation kinetics of the main UVCB constituents. The experiments revealed the degradation rate constants of the main constituents and the absence of nonpolar degradation products.
Article
Environmental Sciences
Woo Jin Park, Myung Hwangbo, Kung-Hui Chu
Summary: The rapid accumulation of end-of-life polyurethanes (PUR) in the environment is a global crisis. This study investigated the microbial community involved in PUR biodegradation and isolated and characterized two PUR-utilizing isolates. The results showed the potential of Pseudomonas in the rapid biodegradation of PUR foam.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Muneer Ahmad Malla, Anamika Dubey, Ashwani Kumar, Abhinandan Patil, Shamshad Ahmad, Richa Kothari, Shweta Yadav
Summary: The present study aimed to develop a bacterial consortium (C3) consisting of three different isolates (A, B, and C) for efficient degradation of chlorpyrifos, cypermethrin, and glyphosate. The consortium isolates were identified as Lactobacillus plantarum, Lactobacillus rhamnosus, and Bacillus shackletonii through genome sequencing. Using central composite design (CCD), the optimal conditions for pesticide degradation, including pesticide concentration, pH, and inoculum size, were determined. Under optimized conditions, the consortium exhibited a significant (p < 0.05) degradation efficiency of 94.93%, 89.4%, and 87.01% for Chl, Cyp, and Gly after 15 days of incubation. The study proposed a common biodegradation pathway for each pesticide based on integrated genomic and gas chromatography mass spectrometry (GC-MS) analysis. Overall, this study highlights the role of microbes in pesticide degradation and suggests that the developed consortium has promising potential for the safe, economical, and eco-friendly detoxification or elimination of chlorpyrifos, cypermethrin, and glyphosate.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Infectious Diseases
Badriyah Alotaibi, Walaa A. Negm, Engy Elekhnawy, Thanaa A. El-Masry, Walaa S. Elseady, Asmaa Saleh, Khalid N. Alotaibi, Suzy A. El-Sherbeni
Summary: This study explored the potential therapeutic activity of oleoresin obtained from Boswellia dalzielii in the treatment of various pulmonary diseases, by demonstrating its antibacterial, antibiofilm, immunomodulatory, and anticancer activities, as well as its lung protective potential in a mouse model.
Article
Biotechnology & Applied Microbiology
Vinay Kumar, Neha Sharma, Alisa Vangnai
Summary: The study examined the growth and degradation kinetics of profenofos in liquid medium using Acinetobacter sp.33F and evaluated the impact of minimal salt medium and Hoagland's solution on profenofos biodegradation. Kinetic parameters for growth and degradation were calculated, providing valuable insight into profenofos behavior in aquatic systems.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Microbiology
Anastasia A. Ivanova, Olesya I. Sazonova, Anton N. Zvonarev, Yanina A. Delegan, Rostislav A. Streletskii, Lidia A. Shishkina, Alexander G. Bogun, Anna A. Vetrova
Summary: The complete genome of Pseudomonas sp. strain OVF7, a strain capable of degrading naphthalene and n-alkanes, was analyzed. The genes responsible for the degradation of naphthalene and n-alkanes were found on the chromosome. Based on genetic comparison with other fluorescent pseudomonads, the bacterium studied may belong to a new species. Additionally, the strain was able to form biofilms of different architectures when cultured in liquid mineral medium with different carbon sources, including naphthalene and n-dodecane.
Article
Biotechnology & Applied Microbiology
Zhenzhen Zhao, Chao Liu, Qianqian Xu, Yang Liu, Xiaolu Liu, Chunhua Yin, Haiyang Zhang, Hai Yan
Summary: A promising strain USTB-Z was successfully isolated from botanical soil for biodegrading coumarin, demonstrating strong capacity in completely removing up to 800 mg/L of coumarin within 48 hours. The biodegradation products of coumarin, including melilotic acid and 2,3-dihydroxyphenylpropionic acid, were identified using HPLC and Q-TOF LC/MS.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2021)
Article
Environmental Sciences
Sarah Al-Rashed, Najat Marraiki, Asad Syed, Abdallah M. Elgorban, Kollur Shiva Prasad, Chandan Shivamallu, Ali H. Bahkali
Summary: Paracoccus sp. DDT-21, isolated from sea water, is able to degrade over 80% of DDT at 50mg/L concentration in 72 hours, and shows tolerance to DDT stress. The optimal conditions for DDT degradation by this strain include pH 7.0, 35 degrees C, 6g/L yeast extract, and 6% glucose, with a degradation rate of approximately 90%.
