Article
Plant Sciences
Young Mo Koo, A. Yeong Heo, Hyong Woo Choi
Summary: This study aimed to screen antagonistic microorganisms against Acidovorax citrulli and found a bacterial isolate named YM002 with significant antagonistic activity. Further experiments showed that YM002 exhibited antagonistic activity against different strains of A. citrulli and enhanced disease resistance in cucumber plants. YM002 also showed various plant growth promotion-related traits and could enhance plant growth parameters. This study highlights the potential of YM002 as an effective biological control agent and plant growth promoter against A. citrulli in cucumber plants.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
R. U. Krishna Nayana, S. Nakkeeran, N. Saranya, R. Saravanan, K. Mahendra, Suhail Ashraf, Kahkashan Perveen, Najla A. Alshaikh, R. Z. Sayyed, Pau Loke Show
Summary: Antagonistic bacterial endophyte Bacillus velezensis YEBBR6 produces secondary metabolites with antifungal activity against the banana pathogen Fusarium oxysporum f. sp. cubense. Triamcinolone acetonide, a compound produced by the endophyte, showed the highest affinity for the fungal protein targets and has the potential to act as a functional disrupter and antifungal molecule.
MOLECULAR BIOTECHNOLOGY
(2023)
Article
Forestry
Yandong Xia, Junang Liu, Zhikai Wang, Yuan He, Qian Tan, Zhuang Du, Anqi Niu, Manman Liu, Zhong Li, Mengke Sang, Guoying Zhou
Summary: The Bacillus subtilis (B. subtilis) YL13 strain isolated from healthy Camellia oleifera leaves showed remarkable antagonistic activity against Collectotrichum fructicola (C. fructicola), the causative agent of anthracnose. YL13 metabolites were found to play important roles in this activity. In greenhouse conditions, YL13-treated C. oleifera plants exhibited significantly reduced disease symptoms. YL13 also secreted bioactive metabolites, which may contribute to its ability to resist C. fructicola. These findings suggest that YL13 strain and its metabolites could be used as microbial control agents for effective management of C. oleifera anthracnose.
Article
Plant Sciences
Tianyan Xie, Shuo Shen, Rong Hu, Wei Li, Jian Wang
Summary: The isolation and identification of antagonistic endophytes from quinoa in this study has important implications for the biological control of crop fungal diseases. The screened endophytic fungi and bacteria showed inhibitory activity against quinoa pathogenic fungi and also exhibited growth-promoting characteristics. These findings provide valuable microbial resources and a theoretical basis for the biological control of plant fungal diseases and agricultural production.
Article
Plant Sciences
Jiaomei Zhang, Xiaoqing Huang, Yuqin Hou, Xiangning Xia, Zhiming Zhu, Airong Huang, Shun Feng, Peihua Li, Lei Shi, Pan Dong
Summary: In this study, 201 endophytic isolates were obtained from healthy potato root tissues, among which 41 showed strong antagonistic activity against Phytophthora infestans. These isolates exhibited high tolerance to various stresses and some of them had pathogenic potential to potatoes. Among the screened isolates, 6-5 showed excellent performance in all tests, inhibited the mycelial growth of P. infestans, and improved the resistance of potato tubers to late blight.
Article
Plant Sciences
Yin Yin Mon, Siamak Shirani Bidabadi, Kyaw Swar Oo, Si-Jun Zheng
Summary: Banana plants have complex micro-ecosystems filled with various microorganisms, including endophytes and root associated rhizospheric microorganisms. Antagonistic microorganisms, such as species of Bacillus, Trichoderma, and Pseudomonas, are recommended for biological control of plant pathogens due to their cost-effectiveness and contribution to sustainable agriculture. Inoculating endophytes and root associated rhizospheric microorganisms into tissue cultured banana plantlets is an effective way to protect bananas from Fusarium oxysporum f. sp. cubense (Foc) infection.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2021)
Article
Chemistry, Applied
Shiming Zhu, Jin Han, Zhichao Yan, Yuze Wu, Wenqing Zhang, Wei Xia, Huafeng Feng
Summary: A novel exopolysaccharide (BD0.4) was purified from Paenibacillus bovis sp. nov BD3526 in wheat bran medium. The structure analysis revealed its composition and branching structure. BD0.4 exhibited enhanced phagocytic ability of macrophages and stimulated the secretion of immune factors from immune cells, possibly through the NF-kappa B signaling pathway.
CARBOHYDRATE POLYMERS
(2022)
Article
Infectious Diseases
Daniel J. Caruso, Enzo A. Palombo, Simon E. Moulton, Peter J. Duggan, Bita Zaferanloo
Summary: This study found that endophytic fungi from Australian plants have the potential to produce substances that can effectively combat methicillin-resistant Staphylococcus aureus (MRSA) and disrupt biofilm formation.
Article
Plant Sciences
Zhishan Wang, Xianyu Wu, Ni Li, Weiping Wang, Yang Liu
Summary: This study developed a rapid, efficient one-step high-throughput method for screening endophytic bacteria with antagonistic activity against Magnaporthe oryzae in rice seeds. The technique allows for simultaneous screening and purification, identifying endophytic bacteria displaying antifungal activity and saving significant time.
PLANT GROWTH REGULATION
(2022)
Article
Plant Sciences
Stefano Rosa, Stefano De Benedetti, Stefania Mazzini, Gigliola Borgonovo, Elisa Bona, Maria Cavaletto, Paola Antonia Corsetto, Martina Ghidoli, Salvatore Roberto Pilu, Alessio Scarafoni
Summary: Plant pathogens cause significant damage and economic losses to valuable crops. This study reveals the importance of microbial endophytic communities in protecting seeds during early germination stages, and their interaction with fatty acids released by seeds, rather than specific antifungal compounds.
Article
Biotechnology & Applied Microbiology
Diana Marcela Vinchira-Villarraga, Leonardo Castellanos, Nubia Moreno-Sarmiento, Zulma Rocio Suarez-Moreno, Freddy A. Ramos
Summary: This study evaluated the antifungal activity of marine-derived Firmicutes strains against the tomato phytopathogen Fusarium oxysporum f. sp. lycopersici (FOL), and identified Paenibacillus sp. PNM200 as a potential biocontrol agent. PNM200 colonized the tomato plant root system, increased plant growth, and reduced vascular wilt severity, showing potential as a biological control agent. The results suggest that marine-derived bacteria could be a new source of biological control agents for soil-borne diseases like Fusarium vascular wilt.
BIOLOGICAL CONTROL
(2021)
Article
Multidisciplinary Sciences
Nattawadee Lorthongpanich, Panupong Mahalapbutr, Thanyada Rungrotmongkol, Thanapon Charoenwongpaiboon, Manchumas Hengsakul Prousoontorn
Summary: In this study, glycoside derivatives of fisetin were synthesized using an enzymatic reaction, improving the water solubility of fisetin. The study characterized the transglycosylated products and demonstrated their formation mechanism. It was also found that the water solubility of fisetin monoglucosides was significantly increased while maintaining their antioxidant activity.
Article
Microbiology
Yuka Munakata, Carole Gavira, Julie Genestier, Frederic Bourgaud, Alain Hehn, Sophie Slezack-Deschaumes
Summary: This study investigated bacterial endophytic communities from vetiver roots originating from 5 different geographic locations across Europe and Africa. The results showed that geographical location influenced the composition and abundance of root endophyte communities in vetiver. Some endophytic bacteria demonstrated strong inhibitory activity against Fusarium graminearum, suggesting their potential as biocontrol agents.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Kumar Vishven Naveen, SeonJu Park, Kandasamy Saravanakumar, Anbazhagan Sathiyaseelan, Myeong-Hyeon Wang
Summary: The present study evaluated the mycochemical abundance, cytotoxic and hemolytic activities of ethyl acetate extract (EAE) from endophytic Penicillium camponotum (PC) and Penicillium fuscoglaucum (PF). The EAE-PF showed higher yield with total phenols (26.59 +/- 1.52 mg of GAE/g DW) and flavonoids (3.12 +/- 1.83 mg of QE/g DW). It exhibited inhibitory effects on the proliferation of breast cancer cells (BT-474 and MDA-MB-231) with IC50 values of 0.112 and 0.120 mg/mL, respectively, while showing no toxicity to normal cells. The EAE-PF also demonstrated low hemolytic activity in erythrocytes. Metabolic profiling identified several mycochemicals in EAE-PF, and molecular docking analysis suggested their interactions with cancer-related proteins.
PROCESS BIOCHEMISTRY
(2023)
Article
Biotechnology & Applied Microbiology
Shanrui Shen, Feifan Yu, Xinyi Hao, Jing Chen, Huan Gao, Xiaofang Lai
Summary: Fusarium head blight (FHB) is a wheat disease caused by Fusarium graminearum, which leads to crop yield losses, economic losses, and poses threats to the environment and human health. A strain called HZ-5 with significant antagonistic activity against F. graminearum has been isolated from sea mud and its antagonistic properties have been studied. HZ-5 shows broad-spectrum antagonistic activity against other plant pathogenic fungi and effectively controls FHB in wheat. The antagonistic substances produced by HZ-5 are temperature-insensitive lipopeptides.
LETTERS IN APPLIED MICROBIOLOGY
(2023)