Article
Plant Sciences
Lidan Cao, Yan Gao, Jinlan Yu, Shuqi Niu, Jiarui Zeng, Qingqing Yao, Xiang Wang, Zhigang Bu, Ting Xu, Xuanming Liu, Yonghua Zhu
Summary: The endophytic actinobacteria OsiSh-2 can enhance the resilience of host plants against iron deficiency stress by modulating iron acquisition and translocation, ultimately leading to improved plant fitness.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Microbiology
Yinan Wang, Di Yang, Yuhui Bi, Zhiguo Yu
Summary: Four new 20-membered macrolides named venturicidins G-J were isolated from a Streptomyces sp. SN5452 culture, along with two known compounds venturicidins A and B. These compounds showed significant inhibition against the growth and germination of Pyricularia oryzae, suggesting their potential as novel fungicides for controlling rice blast.
Article
Plant Sciences
Yanxin Wang, Muxing Liu, Xiaowen Wang, Lingli Zhong, Guolong Shi, Ye Xu, Yangqing Li, Ruolin Li, Yan Huang, Xianfeng Ye, Zhoukun Li, Zhongli Cui
Summary: This study demonstrates the essential role of Gns6 in the defensive response of rice against pathogenic fungi, with its high specific activity and ability to degrade various polysaccharides, which have significant implications for the plant immune system.
JOURNAL OF PLANT PHYSIOLOGY
(2021)
Article
Microbiology
Yifan Zhang, Yanmei Yang, Luyi Zhang, Jia Zhang, Zhanmei Zhou, Jinchang Yang, Yu Hu, Xiaoling Gao, Rongjun Chen, Zhengjian Huang, Zhengjun Xu, Lihua Li
Summary: In this study, a strain of Bacillus mojavensis UTF-33 was isolated from acid mold leaves and shown to have inhibitory effects on rice blast. The bioactive substances produced by this strain were found to inhibit conidial germination and prevent the formation of adherent cells. This is the first study to identify Bacillus mojavensis as a potential agent for the control of rice diseases, with the potential to develop biopesticides from its bioactive substances.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Microbiology
Tianyan Yun, Tao Jing, Xiaoping Zang, Dengbo Zhou, Kai Li, Yankun Zhao, Wei Wang, Jianghui Xie
Summary: Fusarium wilt of bananas caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) is severely impacting the sustainable development of the banana industry. Streptomyces hygroscopicus subsp. hygroscopicus 5-4, a strain with strong antifungal activity, was found to damage the cell membrane of Foc TR4, inhibiting its mycelial growth. Hygromycin B was identified as a potential key antimicrobial metabolite. These findings make Streptomyces hygroscopicus subsp. hygroscopicus 5-4 a promising candidate for controlling Fusarium wilt of bananas and provide a scientific basis for the practical application of hygromycin B as a biological control agent.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Agronomy
Siwei Qiao, Jingyuan Yao, Qizhi Wang, Linwei Li, Bi Wang, Xu Feng, Zhong Wang, Min Yin, Yu Chen, Shu Xu
Summary: This study found that extracts from seven Lycoris species have excellent inhibitory effects on Magnaporthe oryzae. The alkaloids lycorine and narciclasine were identified as the main active components. Both the extracts and lycorine showed good antifungal activities against M. oryzae in vitro and in vivo.
PEST MANAGEMENT SCIENCE
(2023)
Article
Microbiology
Wei Liu, Jiawen Wang, Shan Li, Huaqian Zhang, Li Meng, Liping Liu, Wenxiang Ping, Chunmei Du
Summary: This study predicted the secondary metabolites of Streptomyces through genomic analysis and demonstrated the ability to rapidly develop biocontrol pharmaceuticals. The crude extract of lipopeptides (CEL) from Streptomyces bikiniensis inhibited the growth of Magnaporthe oryzae by destroying membrane integrity and leaking cellular components. In detached leaf and pot experiments, the CEL showed significant control effects on rice blast.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Microbiology
Chenghui Peng, Xiaoxin Zhuang, Congting Gao, Zhiyan Wang, Junwei Zhao, Sheng-Xiong Huang, Chongxi Liu, Wensheng Xiang
Summary: A novel endophytic actinomycete with antagonistic activity against various phytopathogenic fungi, named Streptomyces typhae sp. nov., was isolated from the root of cattail collected from Yunnan Province, Southwest China. The taxonomic study confirmed its distinct species status, supported by genetic and phenotypic differences from closely related strains.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2021)
Article
Multidisciplinary Sciences
Md Abdullah Al Mamun Khan, Asif Ahsan, Md Arif Khan, Jannatul Maowa Sanjana, Suvro Biswas, Md Abu Saleh, Dipali Rani Gupta, M. Nazmul Hoque, Tahsin Islam Sakif, Md Masuder Rahman, Tofazzal Islam
Summary: Magnaporthe oryzae causes destructive blast disease in major cereal crops and poses a threat to global food security. This study focused on discovering naturally occurring biofungicides as alternatives to synthetic chemical fungicides for controlling M. oryzae. Through molecular docking and simulation analysis, two alkaloidal metabolites, camptothecin and GKK1032A2, were identified as potential fungicides with excellent binding energy and bioactivity scores. These compounds showed superior efficacy compared to commercial fungicides. In particular, GKK1032A2 exhibited multi-site mode of action against M. oryzae. These findings suggest that camptothecin and GKK1032A2 could serve as lead compounds for developing novel fungicides against blast fungus.
Article
Biotechnology & Applied Microbiology
Wei Liu, Jiawen Wang, Huaqian Zhang, Xiaohua Qi, Chunmei Du
Summary: Induction with Guy11-inducer significantly increased the production of lipopeptides by Streptomyces bikiniensis, mainly due to metabolites rather than mycelium cells. Under optimal induction conditions, the expression levels of NRPS genes in HD-087 were significantly increased, leading to an increase in lipopeptide production.
MICROBIAL CELL FACTORIES
(2022)
Article
Microbiology
Xingchen Song, Qijun Zhao, Aiai Zhou, Xiaodong Wen, Ming Li, Rongyu Li, Xun Liao, Tengzhi Xu
Summary: This study identified 649 differentially expressed genes in M. oryzae after treatment with citral, mainly enriched in amino sugar and nucleotide sugar metabolic pathways. Chitin degradation and UDP glucose synthesis pathway alterations were found to be associated with damaged cell-wall integrity in M. oryzae following citral treatment.
Article
Microbiology
Yan Gao, Qing Ning, Yuanzhu Yang, Ying Liu, Shuqi Niu, Xiaochun Hu, Huairong Pan, Zhigang Bu, Ning Chen, Jinyou Guo, Jinlan Yu, Lidan Cao, Peng Qin, Junjie Xing, Bin Liu, Xuanming Liu, Yonghua Zhu
Summary: The endophytic actinomycetes Streptomyces hygroscopicus OsiSh-2 has been found to enhance resistance to rice blast while maintaining high yield in 4-year field trials. OsiSh-2 induces defense priming in rice and controls the expression of defense-related proteins, balancing defense and growth to optimize plant performance.
Article
Agronomy
Yu-Jung Cheng, Yun-Shan Tsai, Fang-Wei Lee, Yen-Chou Kuan
Summary: This study evaluated the antifungal actions of S. hygroscopicus metabolites tanespimycin and rapamycin against mango anthracnose. The results showed that these metabolites significantly inhibited fungal growth and enhanced plant resistance by regulating the expression of heat shock proteins in mango. Furthermore, tanespimycin and rapamycin extended the shelf life of mango without deteriorating fruit quality.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Microbiology
Patrick A. Fardella, Bruce B. Clarke, Faith C. Belanger
Summary: Fungal plant pathogens pose significant challenges to crop species, and current control measures heavily rely on fungicides. However, fungicide use has drawbacks such as potential harm to non-target organisms and development of resistance in target fungi. Research is now focused on finding alternative strategies to reduce fungicide reliance. One promising approach involves exploring antifungal proteins from different fungal species as potential biofungicides. This study shows that an antifungal protein called Efe-AfpA from the fungal endophyte Epichloe festucae not only protects plants against Clarireedia jacksonii, but also exhibits inhibitory activity against other important plant pathogens, suggesting it could be developed as a broad-spectrum biofungicide.
Article
Plant Sciences
Lei Wei, Zhengying Shao, Yanhui Fu, Zhang Li, Guorong Ni, Xin Cheng, Yangping Wen, Saijin Wei
Summary: This study found that Streptomyces JD211 could protect rice from Magnaporthe oryzae damages by promoting signal transduction and inducing the production of phenylpropanoids. The results not only revealed the molecular mechanism involved in JD211-induced resistance, but also provided application clues for genetic breeding of crops with improved M. oryzae resistance.
JOURNAL OF PLANT INTERACTIONS
(2022)
Article
Microbiology
Onuma Kaewkla, Christopher Milton Mathew Franco
Summary: A new endophytic actinobacterium strain, named PIP199(T), was isolated and identified as a new member of the genus Amycolatopsis. The strain showed differences in morphology, physiological characteristics, and genetic markers compared to closely related species, leading to the proposal of a new species classification.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2021)
Article
Microbiology
Onuma Kaewkla, Christopher Milton Mathew Franco
Summary: CAP215(T) is an endophytic actinobacterium isolated from the root sample of a native pine tree in South Australia, with various fatty acids and lipid components in its composition, and its genome containing genes related to plant growth promotion and degradation of environmental compounds.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2021)
Article
Microbiology
Pious Thomas, Christopher M. M. Franco
Summary: This study identified abundant and diverse cultivation-recalcitrant endophytic bacteria (CREB) in long-term plant cell cultures using live-cell imaging and bacterial taxonomic profiling. The analysis revealed a high bacterial diversity in old grape cell tissues, with various phyla and functional roles observed in the bacterial microbiome. The findings suggest a widespread association of Cytobacts with healthy plant cells, indicating a dynamic mutualistic relationship.
Article
Microbiology
Onuma Kaewkla, Chanwit Suriyachadkun, Christopher Milton Mathew Franco
Summary: Strain CAP261(T) is an endophytic actinobacterium isolated from the surface sterilized root of an Australian native pine tree, identified as Streptomyces adelaidensis sp. nov. through polyphasic taxonomy study. It exhibits aerobic growth with well-developed substrate mycelia and verrucose spore surfaces. Phylogenetic analysis supported the differentiation of CAP261(T) from the closest species S. bottropensis ATCC 25435(T).
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Microbiology
Onuma Kaewkla, Chanwit Suriyachadkun, Christopher Milton Mathew Franco
Summary: Strain CAP181(T), a new endophytic actinobacterium, was isolated from a native pine tree in South Australia. It belongs to the genus Micromonospora and shows potential for nitrogen fixation and bioremediation.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Microbiology
Onuma Kaewkla, Christopher Milton Mathew Franco
Summary: The study identified a novel species of Pseudonocardia, Pseudonocardia pini sp. nov., isolated from the root of a native pine tree in South Australia. Genome analysis revealed that this strain contains a variety of genes encoding enzymes capable of degrading hazardous chemicals.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Agronomy
Q. A. Tuan Vo, Ross A. Ballard, Stephen J. Barnett, Christopher M. M. Franco
Summary: Endophytic actinobacteria isolated from chickpea roots, such as Actinomadura sp. CP84B, Microbispora sp. CP56, and Streptomyces spp. CP21A2 and CP200B, have shown potential in promoting the growth and nodulation of chickpea plants.
Correction
Microbiology
Onuma Kaewkla, Christopher Milton Mathew Franco
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Yitayal S. Anteneh, Qi Yang, Melissa H. Brown, Christopher M. M. Franco
Summary: This study investigated the culturable diversity of the sponge-associated bacterial community in the South Australian marine environment. The results showed that the diversity of the bacterial population was influenced by isolation medium, incubation period and temperature, sponge type, and oxygen level. Furthermore, the study demonstrated the importance of using both culture-based and culture-independent methods to obtain a more complete picture of the microbial population in marine sponges.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Microbiology
Onuma Kaewkla, Sudarat Sukpanoa, Chanwit Suriyachadkun, Nitcha Chamroensaksi, Theeraphan Chumroenphat, Christopher Milton Mathew Franco
Summary: Two endophytic actinobacteria, strains SBTS01(T) and W18L9(T), were isolated from Jasmine rice grown in a rice paddy field in Thailand. They belong to the genus Streptomyces and have the ability to produce antibiotics and promote plant growth.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2022)
Article
Agronomy
Ting Xu, Q. A. Tuan Vo, Steve J. Barnett, Ross A. Ballard, Yonghua Zhu, Christopher M. M. Franco
Summary: Endophytic actinobacterial strains have positive effects on the chickpea-Mesorhizobium symbiosis, promoting plant growth and increasing grain yield. The improvement in symbiosis is associated with enhanced rhizobial growth, earlier nodule formation, increased secondary root formation, and up-regulated expression of related genes.
Correction
Agronomy
Ting Xu, Q. A. Tuan Vo, Steve J. Barnett, Ross A. Ballard, Yonghua Zhu, Christopher M. M. Franco
Article
Microbiology
Pious Thomas, Thekepat P. Rajendran, Christopher M. M. Franco
Summary: This study reveals the widespread presence of intracellular endophytic bacteria called 'Cytobacts' in various field plants, which can be transmitted vertically through embryos. These bacteria show high taxonomic diversity and cultivation-recalcitrance, suggesting their potential ecological importance in plant ecosystems.
FRONTIERS IN MICROBIOLOGY
(2022)
Review
Environmental Sciences
Qi Liang, Faruq Ahmed, Miansong Zhang, Niki Sperou, Christopher M. M. Franco, Qianjin Feng, Wei Zhang
Summary: Sea cucumbers are highly valued in the commercial seafood market, particularly in Southeast Asia, due to their nutritional and health benefits in Traditional Chinese Medicine. However, there is limited in vivo and evidence-based human clinical research on sea cucumber-derived compounds. This review critically assesses the recent advances in in vivo and clinical studies of sea cucumber-derived bioactives, identifying their various activities and discussing gaps, challenges, and future directions for further scientific validation and development.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Biotechnology & Applied Microbiology
Samuel Rollin, Adarsha Gupta, Christopher M. M. Franco, Surinder Singh, Munish Puri
Summary: This study examines the techniques and importance of sustainable alternatives for the extraction and processing of nutritional oils. The findings suggest that adopting environmentally friendly alternatives can improve efficiency and reduce toxicity, thereby meeting global needs more effectively.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)