Article
Ecology
I. C. Engelhardt, D. Patko, Y. Liu, M. Mimault, G. de las Heras Martinez, T. S. George, M. MacDonald, M. Ptashnyk, T. Sukhodub, N. R. Stanley-Wall, N. Holden, T. J. Daniell, L. X. Dupuy
Summary: This study used live microscopy techniques to observe collective movement of B. subtilis bacteria in soil, resembling the behavior of bird flocks or fish schools. Genetic analysis suggests that this movement may be driven by diffusion of extracellular signaling molecules and influenced by physical obstacles and hydrodynamics in the soil environment.
Article
Microbiology
Manamele D. Mashabela, Fidele Tugizimana, Paul A. Steenkamp, Lizelle A. Piater, Ian A. Dubery, Msizi I. Mhlongo
Summary: This study examines the effects of seed bio-priming with Paenibacillus and Bacillus subtilis strains on the rhizosphere metabolome of wheat cultivars and on the metabolism of above-ground tissues. The analysis reveals differential accumulation of various metabolites in the rhizosphere soil, and metabolic perturbations in the leaf tissue of bio-primed plants. These findings shed light on the biochemical nature of plant-microbe interactions and provide insights for potential metabolome engineering strategies to improve plant growth and defense.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Plant Sciences
Yi-ning Di, Ling Kui, Pratiksha Singh, Lu-feng Liu, Lin-yan Xie, Li-lian He, Fu-sheng Li
Summary: Endophytic microorganisms have the potential to enhance plant growth and resistance to stresses. The strain B9, identified as Bacillus subtilis, showed maximum plant growth promotion in sugarcane. B9 promoted the production of organic acids and phytohormones, and significantly improved the growth and nutrient content of sugarcane seedlings.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Microbiology
Janki K. Patel, Krupa Gohel, Hiral Patel, Tanvi Solanki
Summary: Endophytic bacteria with nitrogen-fixing ability were identified from above-ground parts of wheat, showing varied growth promoting traits such as IAA production and enzyme production. Their colonization ability within the host plant was assessed using ROS induction assay.
CURRENT MICROBIOLOGY
(2021)
Article
Agriculture, Multidisciplinary
Juwei Ao, Xuewei Pan, Qiang Wang, Hengwei Zhang, Kexin Ren, An Jiang, Xian Zhang, Zhiming Rao
Summary: In this study, a whole-cell biocatalytic approach based on enzyme engineering and engineered cell modification was found to be effective in enhancing alpha-arbutin production, overcoming the inhibitory effect of a high concentration of hydroquinone. The final yield of alpha-arbutin achieved was 129.6 g/L, providing a basis for large-scale industrial production.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xifen Zhang, Yaochen Wang, Xiaobin Han, Jianyu Gou, Wei Li, Chengsheng Zhang
Summary: The novel bio-fertilizer composed of prickly ash seeds, Bacillus subtilis, and biochar demonstrated strong disease prevention potential on tobacco black shank caused by Phytophthora nicotianae. It effectively inhibited pathogen growth, improved soil nutrients, and altered the rhizomicrobial community structure.
APPLIED SCIENCES-BASEL
(2021)
Article
Agronomy
Jian Li, Pengfei He, Pengbo He, Yongmei Li, Yixin Wu, Zhanjun Lu, Xingyu Li, Yongchao Yang, Yuehu Wang, Jun Guo, Shahzad Munir, Yueqiu He
Summary: The study found that Bacillus subtilis L1-21 can effectively reduce the quantity of CLas pathogen in ACP, while easily colonizing the midgut of ACP. The highest colonization of endophyte L1-21 was observed in ACP after feeding on new citrus leaves. Psyllids carrying endophyte L1-21 after feeding on citrus leaves were able to reduce the CLas pathogen quantity in citrus leaves.
PEST MANAGEMENT SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Yanluo Xie, Nan He, Mingyang Wei, Tingyao Wen, Xitong Wang, Huakang Liu, Shiqiang Zhong, Heng Xu
Summary: The bacterium strain KC6, identified as Bacillus subtilis, exhibited high resistance to Cd and was able to produce siderophores and solubilize phosphate. KC6 showed strong Cd removal ability under optimal conditions, with Cd bonding onto cell walls and being transported into cellular organs and cytoplasm. Low molecular weight organic acids produced under Cd stress significantly increased, aiding in chelating Cd to Cd-ligands complexes for better removal efficiency.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agronomy
Yanwei Liu, Yingjie Zhou, Xiaofan Zhang, Ni Cao, Bin Li, Jiaping Liang, Qiliang Yang
Summary: The fungal community structure and soil fertility in the rhizosphere soil significantly impact the health of P. notoginseng, as the presence of pathogenic fungi and imbalances in soil fertility can lead to diseases. The positive effect of Bacillus subtilis in improving the soil fungal community structure and the availability of corresponding bioagent products have been confirmed. A greenhouse pot experiment investigated the impact of a biological agent and fertilizer on the rhizosphere soil fungal community of P. notoginseng. NH4 levels decreased by 36.42% to 11.56%, AP increased by 6.03% to 92.46%, AK increased by 2.99% to 25.40%, TN increased by 0.10% to 9.41%, and TP increased by 18.25% to 47.73%. The addition of Bacillus subtilis bioagent decreased the Chao1, Shannon, Simpson, and ACE indices of fungi in the rhizosphere soil of P. notoginseng.
Article
Plant Sciences
Ebtesam A. Gashash, Nahid A. Osman, Abdulaziz A. Alsahli, Heba M. Hewait, Ashmawi E. Ashmawi, Khalid S. Alshallash, Ahmed M. El-Taher, Enas S. Azab, Hany S. Abd El-Raouf, Mohamed E. M. Ibrahim
Summary: The study found that the use of PGPR (Bacillus subtilis and Bacillus amyloliquefaciens) and cyanobacteria significantly increased the growth and yield of tomato plants, improved the quality of tomato fruits, and altered leaflet anatomical characteristics.
Article
Biotechnology & Applied Microbiology
Jun Yang, Huan-Chen Ning, Qi Zhang, Jun-Qi Yue, Xi-Yuan Cao, Jin-Yu Li, Ling Liu, He-Ping Zhao, Hui-Xin Zhao
Summary: In this study, the effects of B. subtilis BS-Z15 and its metabolites on body weight gain and the intestinal microbiota of mice were investigated. The results showed that the treated groups had slower body weight gain and higher food intake compared with the control group. The intestinal microbiota structure of the treated mice was significantly altered, indicating that B. subtilis BS-Z15 may regulate weight gain by affecting the composition of intestinal bacteria.
PROBIOTICS AND ANTIMICROBIAL PROTEINS
(2023)
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.
Article
Microbiology
M. Devindrappa, Anju Kamra, Dinesh Singh, Bharat Gawade, Anil Sirohi
Summary: The effects of four nematicidal rhizobacterial isolates on infection and multiplication of root-knot nematode on tomato were compared with a chemical nematicide. It was found that the bacterial isolates significantly reduced root galling and reproduction factor of the nematode compared to the control. The defense genes and enzymes were also upregulated in the rhizobacteria-treated plants.
JOURNAL OF BASIC MICROBIOLOGY
(2023)
Article
Microbiology
Jian Xue, Tong Tong, Rui Wang, Yibin Qiu, Yian Gu, Liang Sun, Hong Xu, Peng Lei
Summary: The study reveals that gamma-PGA promotes biofilm formation and colonization of Bacillus atrophaeus NX-12, enhancing its biocontrol capability.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Agronomy
Hammad Anwar, Xiukang Wang, Azhar Hussain, Muhammad Rafay, Maqshoof Ahmad, Muhammad Latif, Muhammad Usman Jamshaid, Imran Khalid, Abubakar Dar, Adnan Mustafa
Summary: Plant growth-promoting rhizobacteria integrated with organic amendments can significantly improve crop growth and yield, especially in the case of okra where the integration of SMBL 1 with biochar led to significant improvements in plant height, root length, leaf chlorophyll, fruit weight, and nutrient contents.