Article
Engineering, Environmental
Babita Sharma, Pratyoosh Shukla
Summary: The study identified Bacillus cereus BPS-9 as a lead-resistant bacteria with high lead accumulation potential. The findings also revealed the impact of lead on the bacteria's growth and enzymatic activity, as well as the mechanisms involved in lead adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Tantan Gao, Yan Li, Yunrong Chai, Qi Wang, Mingzheng Ding
Summary: Our study demonstrates that the colonization ability of Bacillus cereus 905 on wheat roots is influenced by the sodA2 gene and the sigB gene, playing important roles in response to environmental stress conditions. The sigB mutant showed reduced survival and defective biofilm formation when exposed to ethanol, acid, heat, oxidative stress, or glucose starvation.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Medicine, Research & Experimental
Na Hyun Kim, Hee Young Kim, Jang Ho Lee, Inik Chang, Sun-Hee Heo, Jiseon Kim, Jeong Hyun Kim, Jung-Hyun Kang, Sei Won Lee
Summary: This study investigated the therapeutic potential of SOD-overexpressing Bacillus amyloliquefaciens spores in a mouse model of pulmonary fibrosis. The results showed that the spores significantly alleviated the disease and decreased the expression of fibrosis-related markers. Additionally, the spores improved survival and reduced lipid peroxidase byproducts. This delivery system demonstrated superior efficacy compared to free SOD.
BIOMEDICINE & PHARMACOTHERAPY
(2023)
Article
Biotechnology & Applied Microbiology
Vijay Shankar Singh, Basant Kumar Dubey, Sushant Rai, Surendra Pratap Singh, Anil Kumar Tripathi
Summary: This study identified the genes responsible for D-glucose utilization ability in A. brasilense Sp7 by cloning and comparing genomes. The transcriptional fusion of these genes improved the D-glucose utilization ability and root colonization of rice seedlings.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Oliwia Metryka, Daniel Wasilkowski, Agnieszka Mrozik
Summary: This study investigated the impact of metal nanoparticles on bacteria, and found that different nanoparticles have different effects on gene expression and antioxidant enzyme activity in bacteria. The study also revealed that these effects are dependent on the type and concentration of nanoparticles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agriculture, Multidisciplinary
Gao Tan-tan, Ding Ming-zheng, Li Yan, Zeng Qing-chao, Wang Qi
Summary: In this study, novel genes regulating sodA2 expression in Bacillus cereus 905 were identified using a genome-wide random insertion mutagenesis system. These genes were found to influence bacterial colonization ability on wheat roots. Multiple genes are involved in MnSOD2 production and wheat root colonization, necessitating further investigation into their molecular regulatory pathways.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Microbiology
Qiubin Huang, Huiping Liu, Juanmei Zhang, Shaowei Wang, Fengying Liu, Chengdie Li, Gang Wang
Summary: Bacillus cereus 0-9 encodes three genes annotated as amylases, among which only the amyS gene produces extracellular amylase. This gene influences the colonization abilities of the bacterium in wheat roots and its biocontrol abilities against Rhizoctonia cerealis.
Article
Agriculture, Multidisciplinary
Sun Yuan-yuan, Zhang Qiu-xin, Zhao Yun-peng, Diao Yue-hui, Gui Fu-rong, Yang Guo-qing
Summary: The study found that the content of Bacillus cereus increases in soil invaded by Ageratina adenophora, and adding A. adenophora root exudates to rhizosphere soil significantly increases the content of B. cereus, along with positive effects on certain soil parameters. Soil treatment with B. cereus promotes the degradation of allelochemicals and enhances the growth of A. adenophora.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Plant Sciences
Yi-Yang Yu, Yi-Yuan Zhang, Ting Wang, Tao-Xiang Huang, Shu-Ya Tang, Yu Jin, Dan-Dan Mi, Ying Zheng, Dong-Dong Niu, Jian-Hua Guo, Chun-Hao Jiang
Summary: In this study, the effects of kurstakin on the antagonism, multicellularity, and disease control ability of Bacillus cereus AR156 were investigated. A mutation in the nonribosomal peptide synthase responsible for kurstakin synthesis led to reduction in antagonistic ability and impaired swarming motility, biofilm formation, and amyloid protein accumulation of AR156. Kurstakin participates in plant disease control by directly inhibiting the growth of pathogenic fungi and enhancing the long-term environmental adaptability and colonization of AR156 on the host surface through triggering multicellularity.
Review
Plant Sciences
Sudhakar Srivastava, Penna Suprasanna
Summary: Metal contamination is a widespread issue affecting crop production. Research shows that microRNAs are key regulators in plant responses to metal stress, coordinating various mechanisms to improve plant growth and stress tolerance.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Review
Microbiology
Pauline Hinnekens, Nancy Fayad, Annika Gillis, Jacques Mahillon
Summary: Horizontal gene transfer (HGT) plays a significant role in shaping bacterial communities through conjugation-like events and transmissible plasmids. Bacillus cereus and related species possess numerous plasmids, including conjugative plasmids, which contribute to species differentiation. Although previous studies have reported conjugative plasmids in B. cereus isolates, in silico analyses suggest that there may be more self-transferable plasmids in B. cereus genomes. Laboratory conditions used for studying conjugation-related mechanisms are limited compared to natural environments. Considering the importance of B. cereus strains in health, economy, and ecology, it is crucial to understand the impact of conjugation within this bacterial group.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Huize Chen, Jinsu Lee, Jung-Min Lee, Minsoo Han, Aurelia Emonet, Jiyoun Lee, Xingtian Jia, Yuree Lee
Summary: Reactive oxygen species (ROS) play essential roles in plant physiological processes and can have both beneficial and harmful effects. This study identified a putative manganese SOD, MSD2, which is secreted and regulates ROS metabolism in the roots, thereby influencing root growth and development.
Article
Environmental Sciences
Rohit Sharma, Teenu Jasrotia, Ahmad Umar, Monu Sharma, Sonu Sharma, Rajeev Kumar, Abdulrab Ahmed M. Alkhanjaf, Rajeev Vats, Vikas Beniwal, Raman Kumar, Joginder Singh
Summary: Here we report a bacteria-based strategy for remediating heavy metals in waterbodies, which is efficient, reasonable, benign, and promising. The study involves isolating, screening, and characterizing heavy metal resistive bacteria, and conducting batch studies to examine the bioremoval results under different conditions. Mechanistic actions are analyzed using complementary techniques such as SEM and FTIR. The results demonstrate the effectiveness of the isolated bacterial strains in removing heavy metals in simulated water samples, showing great potential for industrial applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Steven Batinovic, Cassandra R. Stanton, Daniel T. F. Rice, Brittany Rowe, Michael Beer, Steve Petrovski
Summary: This study isolated five phages infecting Bacillus anthracis, the causative agent of anthrax, and conducted classification and genomic organization analysis. The research revealed the DNA packaging mechanism, invasion mechanisms, and lifecycle of Tyroviruses. This is of great importance for understanding the spread and evolutionary history of phages preying on Bacillus species.
Review
Food Science & Technology
Laura M. Carroll, Rachel A. Cheng, Martin Wiedmann, Jasna Kovac
Summary: The Bacillus cereus group, also known as B. cereus sensu lato (s.l.), is a complex species containing multiple closely related lineages with varying pathogenic abilities. Taxonomic classification of these organisms is challenging due to conflicting changes proposed over the years. This review discusses the nomenclatural changes in the taxonomic space of B. cereus s.l., outlines contemporary taxonomic frameworks, and offers suggestions to avoid ambiguities in classification. Future directions and open problems in the taxonomic realm are also discussed.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)