Article
Plant Sciences
Harry Jay M. Cavite, Ariel G. Mactal, Editha V. Evangelista, Jayvee A. Cruz
Summary: This study evaluated the effects of plant growth-promoting rhizobacteria (PGPR) isolates on enhancing upland rice growth and yield. Acidovorax delafieldii in combination with 50% RRIF was found to be as effective as full RRIF in enhancing growth and yield of PSB Rc23 rice. Further evaluation in actual field conditions is necessary to uncover the efficiency of these bacterial isolates as potential biofertilizer.
JOURNAL OF PLANT GROWTH REGULATION
(2021)
Article
Plant Sciences
Swapnil Sapre, Iti Gontia-Mishra, Sharad Tiwari
Summary: The study demonstrated that plant growth-promoting rhizobacteria (PGPR) improved the growth parameters of pea seedlings under salinity stress, with PGPR strain IG 27 showing better performance. Additionally, PGPR inoculation modulated biochemical parameters and reduced electrolyte leakage and H2O2 content under saline conditions, ultimately enhancing plant growth and yield in field trials with 100 mM NaCl stress.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Agriculture, Multidisciplinary
Dongmei Lyu, Rachel Backer, Fabrice Berrue, Camilo Martinez-Farina, Joseph P. M. Hui, Donald Lawrence Smith
Summary: Inoculating plant growth-promoting rhizobacteria (PGPR) in cannabis plants can enhance yield attributes and chemical profiles. When inoculated with Bacillus sp., Mucilaginibacter sp., and Pseudomonas sp. at the vegetative stage, cannabis showed increased flower dry weight, total CBD, and THC. Inoculation with Mucilaginibacter sp. and Pseudomonas sp. at the flowering stage led to increased total terpene accumulation.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Microbiology
Wenfeng Ai, Tingting Guo, Khien Duc Lay, Kangmiao Ou, Ke Cai, Yue Ding, Jia Liu, Yuanyuan Cao
Summary: In this study, soybean-specific PGPR strains were isolated using soybean agglutin (SBA) as a tool. These strains showed an affinity for soybean, and they were able to produce beneficial substances for plant growth and colonize the soybean rhizosphere. Inoculation with these PGPR strains positively affected soybean growth and yield.
MICROBIOLOGICAL RESEARCH
(2022)
Article
Agricultural Engineering
Dongmei Lyu, Rachel Backer, Donald L. Smith
Summary: This study evaluated the effects of three plant growth-promoting rhizobacteria on root development and subsequent plant growth of cannabis. The results showed that these rhizobacteria increased root length at the vegetative stage and flower fresh weight at harvest. The differences in plant height, node number, branch number, and leaf area between the treated plants and the control group were minimal. The specific rhizobacterium Pseudomonas sp. had the greatest impact on photosynthetic rate, harvest index, flower number, and axillary bud outgrowth rate. Future research should focus on investigating the effects of these rhizobacteria on the secondary metabolite profile of cannabis flowers at harvest.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Plant Sciences
Yongchao Tang, Chunlian Wang, Fujun Wang, Man Li, Yanli Fang, Zhiyuan Ji, Kaijun Zhao
Summary: Recent studies have shown that reprogramming gene expression can lead to increased protein production and improved crop yield. In this study, a new type of plant growth regulator was designed and constructed, and when sprayed on rice plants, it significantly increased the yield.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Genetics & Heredity
Oluwatosin Akinola Ajibade, Elijah Kolawole Oladipo, Stanford Kwenda, Zamantungwa Khumalo, Arshad Ismail, Julius Kola Oloke, Olubukola Monisola Oyawoye, Helen Onyeaka
Summary: The full genome of Enterobacter sichuanensis AJI 2411 was sequenced in this study to unravel the molecular mechanisms underlying its plant growth promoting abilities.
Article
Agronomy
Delai Chen, Munawar Saeed, Mian Noor Hussain Asghar Ali, Muhammad Raheel, Waqas Ashraf, Zeshan Hassan, Muhammad Zeeshan Hassan, Umar Farooq, Muhammad Fahad Hakim, Muhammad Junaid Rao, Syed Atif Hasan Naqvi, Mahmoud Moustafa, Mohammed Al-Shehri, Sally Negm
Summary: In this study, the effects of plant growth-promoting rhizobacteria (PGPR) and Arbuscular mycorrhizal fungi (AMF) on soil fertility and rice growth were investigated. The results showed that rice plants inoculated with AMF and PGPR had better yields and nutritional concentrations, while both AMF and PGPR affected soil pH and organic matter differently. The combined application of AMF and PGPR was found to improve rice yield and sustain soil health.
Review
Agronomy
Naseer Ullah, Allah Ditta, Muhammad Imtiaz, Xiaomin Li, Amin Ullah Jan, Sajid Mehmood, Muhammad Shahid Rizwan, Muhammad Rizwan
Summary: According to research, compost, biochar, and plant growth-promoting rhizobacteria can collaborate to alleviate drought stress and enhance plant growth and productivity. Compost and biochar improve soil conditions, while plant growth-promoting rhizobacteria help increase plants' resistance to drought.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2021)
Article
Agriculture, Multidisciplinary
Augustine T. Zvinavashe, Ilham Mardad, Manal Mhada, Lamfeddal Kouisni, Benedetto Marelli
Summary: New technologies are being sought to enhance soil biodiversity and increase crop production while reducing the use of scarce resources to mitigate threats posed by climate change, population growth, and desertification. Challenges still remain in facilitating the delivery of plant-growth-promoting bacteria in the soil, including survival, precise delivery, competition with indigenous soil microorganisms, and soil structure.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Food Science & Technology
Himadri Bhusan Bal, Tapan Kumar Adhya
Summary: Inoculation of rice seeds with ACC-utilizing bacteria can significantly improve germination rate and seedling growth index, while reducing ethylene production in plants under submergence stress.
FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
(2021)
Review
Plant Sciences
Kailash Chand Kumawat, Barkha Sharma, Sharon Nagpal, Ajay Kumar, Shalini Tiwari, Ramakrishnan Madhavan Nair
Summary: Soil salinity, caused by the changing climate, has become a serious problem worldwide, resulting in damaged soil quality, reduced agricultural production, and decreasing land areas, which has a negative impact on the national economy. Halo-tolerant plant growth-promoting rhizo-microbiomes (PGPRs) are evaluated as excellent agents in controlling biotic-abiotic stresses and promoting crop productivity in salinity-affected agriculture. PGPR-assisted modern agriculture practices have emerged as a green strategy to ensure sustainable farming and mitigate salinity-related stresses. The regulation of PGPR-induced signaling pathways and the application of gene editing tools like CRISPR can contribute to improved plant resistance and adaptability under climate change conditions. The utilization of omics technologies can also enhance crop yields in a sustainable manner, ultimately leading to improved vitality. However, the challenges of crop specificity, acceptance by farmers, and legal regulations need to be addressed for product commercialization in response to climate change.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
Joanna Swiatczak, Agnieszka Kalwasinska, Anna Wojciechowska, Maria Swiontek Brzezinska
Summary: This study comprehensively characterized Brevibacillus laterosporus K75 and found that it significantly promotes maize growth. This research is important for finding safer alternatives to harmful pesticides.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Microbiology
Sara S. Laranjeira, Isabel G. Alves, Guilhermina Marques
Summary: The seed microbiome plays an important role in plant growth, health, and productivity. This study isolated and characterized several endophytic bacteria from chickpea seeds, including Bacillus, Mesorhizobium, and Burkholderia, which may be vertically transferred to benefit the next generation of plants.
CURRENT MICROBIOLOGY
(2022)
Review
Agriculture, Multidisciplinary
Bizuayehu Desta, Getachew Amare
Summary: Plant growth regulators such as Paclobutrazol can modify hormonal balance, increase yield, enhance crop tolerance against stress, and improve physiological traits. PBZ affects plant hormones by inhibiting gibberellin synthesis and increasing cytokinins level, resulting in reduced stem elongation. Application on growing media is more effective than foliar spray in terms of absorption.
CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE
(2021)
Article
Microbiology
Chongxi Liu, Xiaoxin Zhuang, Zhiyin Yu, Zhiyan Wang, Yongjiang Wang, Xiaowei Guo, Wensheng Xiang, Shengxiong Huang
Article
Microbiology
Xiaoxin Zhuang, Chenghui Peng, Zhiyan Wang, Junwei Zhao, Yue Shen, Chongxi Liu, Wensheng Xiang
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2020)
Article
Microbiology
Zhiyin Yu, Chuanyu Han, Bing Yu, Junwei Zhao, Yijun Yan, Shengxiong Huang, Chongxi Liu, Wensheng Xiang
Article
Microbiology
Xiaoxin Zhuang, Zhiyan Wang, Chenghui Peng, Can Su, Congting Gao, Yongjiang Wang, Shengxiong Huang, Chongxi Liu
Article
Microbiology
Chenghui Peng, Xiaoxin Zhuang, Zhiyan Wang, Congting Gao, Junwei Zhao, Jia Song, Chongxi Liu, Yue Shen
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2020)
Article
Agriculture, Multidisciplinary
Chuanyu Han, Zhiyin Yu, Yuting Zhang, Zhiyan Wang, Junwei Zhao, Sheng-Xiong Huang, Zhonghua Ma, Ziyue Wen, Chongxi Liu, Wensheng Xiang
Summary: The study showed that the supernatant extract from fermentation broth of Streptomyces sp. NEAU-H3 exhibited strong antifungal activity against Fusarium graminearum strain PH-1, with the main active ingredient identified as frenolicin B. Frenolicin B demonstrated potent antifungal activity against F. graminearum strain PH-1 and carbendazim-resistant Fusarium strains, suggesting its potential as an agrochemical fungicide for controlling Fusarium head blight.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
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
Plant Sciences
Zhiyan Wang, Feng-Xian Yang, Chongxi Liu, Li Wang, Yuxin Qi, Minghang Cao, Xiaowei Guo, Jie Li, Xueshuang Huang, Jing Yang, Sheng-Xiong Huang
Summary: Nexphenazine A, a phenazine-polyketide hybrid compound, was isolated from Streptomyces sp. KIB-H483. The biosynthesis of nexphenazine involves a gene cluster, with npzI gene playing a key role.
JOURNAL OF NATURAL PRODUCTS
(2022)
Article
Biochemistry & Molecular Biology
Chongxi Liu, Zhiyan Wang, Yin Chen, Yijun Yan, Lei Li, Yong-Jiang Wang, Lu Bai, Shanshan Li, Yanyan Zhang, Xiangjing Wang, Sheng-Xiong Huang, Wensheng Xiang
Summary: In this study, the gene cluster responsible for guvermectin biosynthesis in Streptomyces caniferus NEAU6 was identified, and the functions of GvmB, C, D, and E were verified through experiments. The biosynthesis of guvermectin is coupled with adenosine production by a single cluster, and the catalytic efficiency of GvmB on PMP ensures effective biosynthesis. Additionally, the phosphoribohydrolase GvmA plays a role in shifting adenosine biosynthesis towards the production of guvermectin. The crystal structure of GvmE in complex with the product PMP has been solved, revealing its function as a noncanonical adenine phosphoribosyltransferase.
ACS CHEMICAL BIOLOGY
(2023)
Article
Microbiology
Teng Wang, Congting Gao, Hongmin Chen, Jingquan Yang, Rui Du, Gengxin Zuo, Junwei Zhao, Wensheng Xiang, Chongxi Liu
Summary: A new protease-producing actinomycete strain, NEAU-ZS1T, was isolated from the root of Perilla frutescens (Linn.) Britt collected from Jiamusi, Heilongjiang, PR China. Phylogenetic analysis revealed that NEAU-ZS1T formed a monophyletic clade with 'S. corydalis' NEAU-YHS15T. Based on a polyphasic taxonomic study, NEAU-ZS1T represents a novel species of the genus Sphaerisporangium, for which the name Sphaerisporangium perillae sp. nov. is proposed.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Microbiology
Hongmin Chen, Tingting Cao, Teng Wang, Congting Gao, Jingquan Yang, Qingyan Dong, Yue Shen, Chongxi Liu
Summary: A novel endophytic actinomycete, strain NEAU-365T, was isolated from the root of Quercus variabilis in Nanjing, Jiangsu, PR China. It belongs to the genus Mumia but differs from known species. The new species, Mumia quercus sp. nov., has distinct genotypic and phenotypic characteristics.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Agriculture, Multidisciplinary
Chongxi Liu, Chenxu Li, Hui Bing, Junwei Zhao, Lei Li, Peng Sun, Tingting Li, Dandan Du, Junlei Zhao, Xiangjing Wang, Wensheng Xiang
Summary: Rice direct seeding technology has the potential to save labor and water compared to traditional transplanting, but poor emergence and seedling growth caused by chill stress hinders its wide-scale adoption. This study found that seed-soaking with the plant growth regulator guvermectin (GV) effectively improved rice seed germination and seedling growth under chilling stress. Field trials showed that GV treatment enhanced emergence rate, seedling growth, panicle number per plant, and grain number per panicle, resulting in increased yield of direct-seeded rice. Physiological, transcriptomic, and metabolomic analyses revealed that GV improved seed germination under chilling stress by increasing enzyme activity, soluble sugar and protein contents, glutathione and flavonoid biosynthesis, as well as activating transcription factors. Inhibition of the abscisic acid signaling pathway was also observed. Overall, these findings demonstrate the potential of seed-soaking with GV to improve seedling establishment and yield of direct-seeded rice, even under chilling stress.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)