Article
Environmental Sciences
Yi Jiang, Xingqing Zhao, Yucheng Zhou, Congcong Ding
Summary: This study investigated the phosphate solubilization and mineralization mechanism of a Pb-tolerant strain Ochrobactrum sp. J023. The strain secreted organic acids and acid phosphatase that synergistically promoted phosphate dissolution. The extracellular polymeric substances (EPS) provided protection to the strain by chelating Pb(II) and preventing its penetration into the cell. The formation of mineralized precipitation was induced by the complexation of metal cations and cell surface groups under the catalysis of enzymes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Sivagnanam Silambarasan, Pablo Cornejo, Alisa S. Vangnai
Summary: In this study, a Bacillus sp. strain AVPP64 with 4-nitroaniline (4-NA) degradation capability was isolated. The strain showed pesticide tolerance and self-nutrient integration via nitrogen-fixation and phosphate-solubilization. The study revealed that strain AVPP64 can be used as an inoculum for the bioremediation of 4-NA contaminated soil and for sustainable crop production even in the presence of pesticides.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biochemistry & Molecular Biology
Isha Sharma, Naveen Kango
Summary: This study successfully increased the efficiency of keratinase secretion by Ochrobactrum intermedium through optimizing process parameters, revealing that the enzyme exhibited high activity and stability under specific conditions. Additionally, calcium ions were found to enhance keratinase activity, while PMSF and EDTA were able to inhibit its activity, demonstrating high efficiency in degrading poultry feathers.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Environmental Sciences
Min Ni, Yimeng Zhao, Yang Pan, Dapeng Li, Yong Huang, Zhiqiang Chen, Lu Li, Zuowei Song
Summary: The formation of dominant phosphate-accumulating organisms (PAOs) is crucial for phosphorus recovery in biofilm sequencing batch reactors (BSBR). This study obtained highly-efficient PAOs through an innovative isolation method and compared their abundance with phosphate removal ability. Metagenomics analysis revealed unique metabolic pathways in dominant PAOs in biofilms, suggesting that optimizing carbon source uptake and phosphate metabolism promote the formation of dominant PAOs. The difficulty in isolating dominant PAOs was attributed to AHL-mediated quorum sensing, and the key pathways regulating the formation of dominant PAOs in biofilms were identified through genomics analysis. This study provides valuable insights for enhancing phosphate enrichment in BSBR.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Tingting Zang, Haizhen Wu, Bo Yan, Yuxiu Zhang, Chaohai Wei
Summary: The addition of phenol can reduce the critical micelle concentration of biosurfactants and enhance the solubilization of PAHs by forming mixed micelles. The bioavailability of PAHs in sludge significantly increased when phenol and biosurfactant were added simultaneously. Phenol also improved the degradation of PAHs by Stenotrophomonas sp. N5 in biosurfactant solution.
Article
Engineering, Environmental
Luchao Han, Xiao Wang, Bengang Li, Guofeng Shen, Shu Tao, Bo Fu, Yunman Han, Wei Li, Shengxing Long, Siyuan Peng, Jing Xu
Summary: In this study, a novel Mg-modified lignin biochar (MB) was prepared to improve the ability of phosphate-solubilizing bacteria (PSB) to dissolve FePO4. The results showed that the system with MB was more effective in increasing FePO4 dissolution and organic acid production. Characterization results revealed the formation of Fe(III)(2)Fe(II)(P2O7)(2) crystals on the surface of MB, which increased the solubility of Fe-P. This study provides a new method for the development of insoluble phosphate solubilization technology.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Peng Wang, Chen Shen, Qinqin Cong, Kaili Xu, Jialin Lu
Summary: The study identified and characterized a beta-lactamase from Ochrobactrum tritici involved in the biodegradation of penicillin V. The enzyme exhibited high activity against penicillin V and is expected to be used for future degradation of this antibiotic.
MICROBIAL CELL FACTORIES
(2021)
Article
Environmental Sciences
Jiamei He, Zeyu Wang, Fengzhen Zhen, Zhaoyun Wang, Zhongdi Song, Jun Chen, Dzmitry Hrynsphan, Savitskaya Tatsiana
Summary: A novel strain Ochrobactrum tritici WX3-8 capable of degrading Tris (2-ethylhexyl) phosphate (TEHP) as the sole C source was isolated. The strain showed a TEHP degradation efficiency of 75% after 104 h under optimal conditions, and TEHP was transformed by O-dealkylation to generate 2-ethylhexanol. This study suggests the potential application of strain WX3-8 as a cost-effective and environmentally-friendly strategy for bioremediation of TEHP in the environment.
Article
Microbiology
Ramandeep Kaur, Sanjai Saxena
Summary: In this study, 61 endophytic isolates associated with the wheat variety PBW725 were screened. Three isolates showed minimal reduction in growth and maximum biomass production under drought stress, and exhibited traits such as production of growth-promoting substances, phosphate and zinc solubilization, siderophore production, and extracellular enzymatic activities that contribute to plant adaptability to abiotic stresses. Among them, Penicillium citrinum #5TAKL-3a was identified as the best isolate and has the potential to improve wheat adaptability to drought stress as a bioinoculant in field trials.
CURRENT MICROBIOLOGY
(2023)
Article
Engineering, Chemical
Qu Zhang, Chao Xue, Gary Owens, Zuliang Chen
Summary: Green tea extract was used to synthesize reduced graphene oxide (rGO) as a carrier to immobilize Ochrobactrum sp. FJ1, forming a functional bionanomaterial (FJ1@rGO) for the degradation of 17beta-estradiol (E2). Response surface methodology (CCD) was used to optimize the synthesis conditions, and the optimized FJ1@rGO showed a significantly higher removal efficiency of 93.7% for E2 within 10 days. Advanced characterization confirmed the successful immobilization of FJ1 on rGO, and FJ1@rGO exhibited excellent removal effects on E1, BPA, and triclosan, as well as excellent recycling properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Qiancheng Zhao, Qiaoyu Hu, Ziliang Qiu, Caihong Yu
Summary: Strain C2, identified as Ochrobactrum sp., can completely degrade 250 mg/L of quinoline within 24 hours and grow under acidic conditions using quinoline as the sole carbon and nitrogen sources. The degradation of quinoline at low concentrations by Strain C2 follows the first-order kinetic model.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Microbiology
Claudia Breitkreuz, Thomas Reitz, Elke Schulz, Mika Tapio Tarkka
Summary: Climate and plant community composition influence the structure and function of microbial communities, particularly impacting nutrient-releasing populations of the Pseudomonas community. Drought has a significant impact on the functional traits of the Pseudomonas community, with varying effects on phosphate solubilization and siderophore production. The response of the Pseudomonas community to drought is trait-specific and influenced by plant community composition.
Article
Engineering, Environmental
Qiancheng Zhao, Qiaoyu Hu, Ziliang Qiu, Caihong Yu
Summary: Strain C2, isolated from coking wastewater, can degrade quinoline under acidic conditions and its growth pattern is more consistent with the Haldane model. Immobilization with sodium alginate enhances the degradation efficiency of quinoline.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Mahnaz Nezamivand-Chegini, Esmaeil Ebrahimie, Ahmad Tahmasebi, Ali Moghadam, Saeid Eshghi, Manijeh Mohammadi-Dehchesmeh, Stanislav Kopriva, Ali Niazi
Summary: The study analyzed the evolution of the SPX gene family in legumes and other species, revealing fluctuations in different classes of SPX proteins in different plants, as well as the sub- or neo-functionalization of duplicated genes in legumes. Functional orthologs in soybean and Medicago were identified using two different methods.
Article
Multidisciplinary Sciences
Mingxia Song, Xinyu Wang, Hongwei Xu, Xiaofu Zhou, Chunsheng Mu
Summary: Using phosphate-solubilizing microorganisms in synergy with plant roots is an environmentally friendly and efficient way to provide soluble phosphorus to plants. Trichoderma viride, a biocontrol agent, can solubilize insoluble inorganic phosphorus and mineralize insoluble organic phosphorus. Inoculation of Trichoderma viride promotes seedling growth, increases chlorophyll fluorescence parameters and photosynthetic pigment content, and enhances phosphorus content in seedlings.
SCIENTIFIC REPORTS
(2023)
Article
Microbiology
Sadia Latif, SamiUllah Khan, Muhammad Naveed, Ghulam Mustafa, Tasmia Bashir, Abdul Samad Mumtaz
ARCHIVES OF MICROBIOLOGY
(2013)
Article
Oncology
Sami Ullah Khan, Ishrat Mahjabeen, Faraz Arshad Malik, Mahmood Akhtar Kayani
ASIAN PACIFIC JOURNAL OF CANCER PREVENTION
(2014)
Article
Engineering, Environmental
Siddiq Akbar, Fariha Hasan, Akhtar Nadhman, Samiullah Khan, Aamer Ali Shah
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2013)
Article
Materials Science, Multidisciplinary
Abdul Manan, Sami Ullah Khan, Ibrahim Qazi
MATERIALS SCIENCE-POLAND
(2014)
Article
Agriculture, Multidisciplinary
Ali Raza Gurmani, Sami Ullah Khan, Fazli Mabood, Zahoor Ahmed, Shahid Javed Butt, Jalal-Ud Din, Abdul Mujeeb-Kazi, Donald Smith
INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
(2014)
Article
Plant Sciences
Samiullah Khan, Abdul Samad Mumtaz, Ghulam Mustafa, M. Naveed, Zabta Khan Shinwari, Allan Downie
PAKISTAN JOURNAL OF BOTANY
(2013)
Article
Zoology
Ahmed M. Al-Shammari, Sami Ullah Khan, Mohammad Khalid Al-Sadoon, Saad S. M. Al-Saleh
PAKISTAN JOURNAL OF ZOOLOGY
(2013)
Article
Chemistry, Multidisciplinary
Sami Ullah Khan, Jalal-Ud-Din, Ali Raza Gurmani, Abdul Qayyum, Hakim Khan
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
(2013)
Article
Multidisciplinary Sciences
Neelofar Jabeen, Mohammad I. Kozgar, Ghulam H. Dar, Abdul S. Shawl, Samiullah Khan
CHIANG MAI JOURNAL OF SCIENCE
(2013)
Article
Plant Sciences
Ghulam Mustafa, Muhammad Maqsood Alam, Sami Ullah Khan, Muhammad Naveed, Abdul S. Mumtaz
PAKISTAN JOURNAL OF BOTANY
(2013)
Article
Plant Sciences
Sami Ullah Khan, Ayub Khan, Ali Raza Gurmani, Jalal-Ud-Din
PAKISTAN JOURNAL OF BOTANY
(2013)
Article
Chemistry, Multidisciplinary
Ali Raza Gurmani, Rani Andaleep, Sami Ullah Khan, Jalal-Ud-Din, Nowsherwan Noble Nawab, Mohsin Zafar
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
(2012)
Article
Chemistry, Multidisciplinary
Jalal-Ud-Din, Sami Ullah Khan, Ali Raza Gurmani
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
(2012)
Article
Plant Sciences
Sami Ullah Khan, Asghari Bano, Jalal-Ud-Din, Ali Raza Gurmani
PAKISTAN JOURNAL OF BOTANY
(2012)