Article
Environmental Sciences
Tariq Shah, Ahmad Ali, Ghulam Haider, Muhammad Asad, Fazal Munsif
Summary: Despite the benefits of plastics in daily life, the accumulation of plastics in the environment, especially microplastics, can cause problems and potential loss of ecosystem services. This study investigated the effects of different types of microplastics on plant growth, soil enzyme activities, and microbial communities. The results showed that microplastics had a positive impact on plant growth but suppressed soil enzyme activities, except for urease activity. Microplastics also altered the structure and metabolic status of the microbial community. It was concluded that microplastics in soil are not benign and measures should be taken to restrict their access to the soil-plant system and food chain.
Article
Ecology
Lukas M. Trebuch, Olivia M. Bourceau, Stijn M. F. Vaessen, Thomas R. Neu, Marcel Janssen, Dirk de Beer, Louise E. M. Vet, Rene H. Wijffels, Tania V. Fernandes
Summary: Photogranules are spherical aggregates formed of complex phototrophic ecosystems with potential for aeration-free wastewater treatment. They are biologically and chemically stratified, with filamentous cyanobacteria arranged in discrete layers and forming a scaffold to which other organisms were attached. Oxygen, nitrate, and light gradients were also detectable. Photosynthetic activity and nitrification were both predominantly restricted to the outer 500 mu m, but while photosynthesis was relatively insensitive to the oxygen and nutrient concentrations tested, nitrification was highly sensitive. Oxygen was cycled internally, and nitrogen and carbon were cycled through paired nitrification and denitrification, and photosynthesis and respiration, respectively.
Article
Biochemistry & Molecular Biology
Pengfei Duan, Xiaoyu Liu, Guoqing Niu, Nanyu Jia, Tao Wen, Jianguo Zeng, Qiaowei Chen, Jian Zhang, Chao Xue, Qirong Shen, Jun Yuan
Summary: The application of coronarin (COR) affects the microorganisms and metabolome of plant roots, enhancing drought tolerance in plants. COR treatment significantly reduces the relative abundance of specific metabolites in maize roots under drought conditions, while increasing the abundance of drought-resistant fungal microorganisms and the formation of a highly drought-resistant rhizosphere fungal network.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2023)
Article
Agronomy
Sekar Nishanth, Radha Prasanna, Firoz Hossain, Vignesh Muthusamy, Yashbir Singh Shivay, Lata Nain
Summary: This study aimed to improve iron and zinc mobilization from soil to maize kernels using cyanobacteria-based formulations. The results confirmed the significant effects of individual microbial inoculation and biofilms on enhancing nutrient availability in maize kernels. The An-Tr biofilm-G1 (hybrid) combination showed promising results in improving maize kernel quality and saving nitrogen fertilizer.
Article
Soil Science
Cunkang Hao, Jennifer A. J. Dungait, Xiaomeng Wei, Tida Ge, Yakov Kuzyakov, Zhenling Cui, Jing Tian, Fusuo Zhang
Summary: This study investigated the effects of nitrogen deprivation on rhizosphere bacterial communities and root exudates, as well as the formation of hydrolase activity hotspots in maize rhizosphere. The results showed that nitrogen supply had a greater impact on rhizosphere enzyme activity and extent than changes in enzyme activity rates. Additionally, nitrogen deprivation also led to a decrease in oligotrophic bacteria populations and an increase in copiotrophic bacteria populations. The study also found that the composition of root exudates was strongly associated with changes in rhizosphere NAG activity.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Engineering, Chemical
Ning Huang, Xingmin Zhao, Xinxin Guo, Biao Sui, Jinhua Liu, Hongbin Wang, Jialin Li
Summary: The tillage method in farming systems plays a crucial role in increasing fertilizer uptake by plant roots and preventing environmental pollution. This field study investigated the characteristics of nitrogen content and enzyme activities in rhizosphere soil under different tillage methods. The results showed that continuous no-till (CN) had the highest nitrogen content and enzyme activities, making it the recommended tillage method for improving macronutrient availability and soil enzyme activities.
Article
Agriculture, Multidisciplinary
Chao Deng, Ning Zhang, Xiaolong Liang, Tao Huang, Bingxue Li
Summary: A Bacillus strain, identified as Bacillus aryabhattai strain LAD, was isolated from long-term maize colonization soil. The study showed that LAD had phosphate-solubilizing and nitrogen-fixing functions that benefited plant growth. The treatment with LAD culture significantly influenced the root system development of corn seedlings and the structure of rhizosphere bacterial communities.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Plant Sciences
Yuhang Jiang, Muhammad Umar Khan, Xiaoqin Lin, Zhimin Lin, Sheng Lin, Wenxiong Lin
Summary: Legume/cereal intercropping increases yield and improves functional leaves and nodule characteristics through nitrogen fixation. Intercropping also enhances the abundance of nitrogen fixation-related genes and the proportion of isoflavonoids in root exudates.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Plant Sciences
Ulrike Schwerdtner, Marie Spohn
Summary: This study examines plant interactions in intercropping that contribute to the acquisition of nitrogen and phosphorus by plants, leading to higher yields. The results show that intercropping with legumes such as soy and lupin increases nitrogen and phosphorus content in maize, indicating the advantages of intercropping for nutrient acquisition. Additionally, changes in the rhizosphere, such as increased phosphatase activity by lupin and faba bean, and pH changes caused by mustard and faba bean, contribute to nutrient mobilization and promote maize growth in intercropping.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Biotechnology & Applied Microbiology
Venkatesh Kokila, Radha Prasanna, Arun Kumar, Sekar Nishanth, Jyoti Shukla, Udita Gulia, Lata Nain, Yashbir Singh Shivay, Awani Kumar Singh
Summary: This study investigated the influence of cyanobacterial inoculants on soil and plant parameters and found that cyanobacterial inoculation can significantly enhance soil nutrients, crop growth, and productivity under elevated CO2 conditions.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Microbiology
Violeta Matus-Acuna, Gustavo Caballero-Flores, Esperanza Martinez-Romero
Summary: The study demonstrates that plant growth and genotype significantly alter the eukaryotic community in the rhizosphere, while different maize genotypes have a selective influence on the relative abundance of fungal families in the rhizosphere.
FEMS MICROBIOLOGY ECOLOGY
(2021)
Article
Soil Science
Rui Wang, Bin Huo, La Chen, Keke Li, Ganfeng Yi, Entao Wang, Guohua Mi, Xinhua Sui
Summary: The effects of rhizobial inoculation on the peanut rhizosphere bacterial community and metabolites were investigated under different nitrogen availability. The results showed that rhizobial inoculation significantly improved peanut growth and nodulation, as well as increased the abundance and richness of rhizobacterial community. The beneficial bacteria Saccharimonadales and c_JG30-KF-CM66 (Chloroflexi) were most abundant in the inoculated treatment.
BIOLOGY AND FERTILITY OF SOILS
(2023)
Article
Microbiology
Qingcheng Qiu, Dabing Xiang, Qiang Li, Hanlin Wang, Yan Wan, Qi Wu, Xueling Ye, Liangzhen Jiang, Yu Fan, Bingliang Liu, Yanxia Liu, Han Li, Changying Liu
Summary: This study investigated the effects of nitrogen fertilizer application on growth and rhizosphere microbial community of Tartary buckwheat. The results showed that nitrogen application promoted the growth and yield of Tartary buckwheat, and changed the diversity and abundance of rhizosphere microorganisms. Furthermore, specific enriched or depleted microorganisms in the rhizosphere soil of different Tartary buckwheat varieties were identified.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Plant Sciences
Qiqi Dong, Xinhua Zhao, Dongying Zhou, Zhenhua Liu, Xiaolong Shi, Yang Yuan, Peiyan Jia, Yingyan Liu, Penghao Song, Xiaoguang Wang, Chunji Jiang, Xibo Liu, He Zhang, Chao Zhong, Feng Guo, Shubo Wan, Haiqiu Yu, Zheng Zhang
Summary: Belowground interactions mediated by root exudates play a critical role in the productivity and efficiency of intercropping systems. This study investigated the assembly of microbial communities in maize, peanuts, and shared rhizosphere soil, as well as their regulatory mechanisms on root exudates under different planting patterns. The results showed that intercropped maize had significantly increased yield, while intercropped peanuts had significantly decreased yield. Root interactions had a significant effect on the content of ammonium nitrogen and the activities of related enzymes in the rhizosphere soil. Network analysis revealed a reshaped bacterial community composition and increased relative abundance of Bradyrhizobium in the shared soil of intercropped maize and peanuts. These findings suggest that interspecific root interactions improve the soil microenvironment, regulate nitrogen absorption and utilization, and provide a theoretical basis for high yield and sustainable development in maize and peanut intercropping.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biology
Michael A. Meier, Gen Xu, Martha G. Lopez-Guerrero, Guangyong Li, Christine Smith, Brandi Sigmon, Joshua R. Herr, James R. Alfano, Yufeng Ge, James C. Schnable, Jinliang Yang
Summary: The composition of the rhizobiome is influenced by host plant genetics, with a greater impact under low nitrogen conditions. This study also identifies genetic markers associated with the abundance of specific microbial groups in the maize rhizobiome and their correlation with plant vigor.
Article
Chemistry, Analytical
Ashish Khandelwal, Shashi Bala Singh, Anamika Sharma, Lata Nain, Eldho Varghese, Neera Singh
Summary: Three fungal strains isolated from oily sludge contaminated soil, including Trichoderma atroviride, Aspergillus nidulans, and Aspergillus sydowii, were found to have the potential to degrade aliphatic hydrocarbons/crude oil. The degradation of aliphatic hydrocarbons was more efficient during the initial days of incubation (15 days) as compared to 30 days.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Jyoti Singh, Abha Sharma, Pushpendra Sharma, Govind Singh Tomar, Minakshi Grover, Surender Singh, Lata Nain
Summary: This study successfully produced multiple high-value products, such as bioethanol, microbial lipids, and lactic acid, using mixed lignocellulosic biomass.
NATURAL PRODUCT RESEARCH
(2023)
Article
Agronomy
Jyoti Shukla, Udita Gulia, Himani Gupta, Krati Gupta, Robin Gogoi, Arun Kumar, Himanshu Mahawar, Sekar Nishanth, Garima Saxena, Awani Kumar Singh, Lata Nain, Yashbir Singh Shivay, Radha Prasanna
Summary: This study explored the interactions between cyanobacteria and phytopathogenic fungi in soil-less potting mixes. The results showed that amending the substrate with cyanobacteria improved seed germination and nutrient availability in the rhizosphere. Additionally, these interactions promoted the growth of tomato plants.
Article
Agronomy
Amit Anil Shahane, Yashbir Singh Shivay, Radha Prasanna
Summary: This study investigated the impact of different wheat establishment methods on soil biological properties, crop productivity, and water productivity. The results showed that zero till-drill wheat and the application of Anabaena-Pseudomonas biofilm formulation with 75% recommended dose of nutrients had significant and positive impacts on the biological activities in the rhizosphere of wheat.
AGRICULTURAL RESEARCH
(2023)
Article
Microbiology
Manjunatha T. Gowda, Radha Prasanna, Aditi Kundu, Virendra Singh Rana, Uma Rao, Gautam Chawla
Summary: Intermingled uninfected and root-knot nematode-infected tomato plants were studied under protected cultivation. Rhizobacteria were isolated from the rhizosphere of these plants, and it was found that the nematicidal potential of rhizobacteria from uninfected soil was higher than that from infected soil. Certain strains of rhizobacteria showed effectiveness in reducing nematode penetration and reproduction in tomato plants.
JOURNAL OF BASIC MICROBIOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Annu Rani, Anuj Rana, Rahul Kumar Dhaka, Arvind Pratap Singh, Madhvi Chahar, Surender Singh, Lata Nain, Krishna Pal Singh, Dror Minz
Summary: Bacteria release volatile organic compounds (VOCs) into the environment, which have various effects on plants, including promoting growth, suppressing pathogens, and acting as signaling molecules. Some VOCs also exhibit antimicrobial and pesticidal activities. Different bacterial species produce different VOCs, with some contributing to plant growth promotion. Understanding the mechanisms by which VOCs affect plant genes and metabolic pathways is still a topic of ongoing research.
BIOTECHNOLOGY ADVANCES
(2023)
Article
Environmental Sciences
M. Rastogi, M. Nandal, L. Nain
Summary: A passive composting method using a hybrid Bacillus commune and cow dung slurry for municipal solid waste was investigated, where four Bacillus strains were mixed with cow dung in different ratios. The temperature (ambient and pile) triggered physico-chemical changes in the compost mix, and the quality of the finished compost was tested after two seasons. Adding Bacillus commune and cow dung slurry during the peak summer season accelerated degradation and resulted in enriched compost. Various parameters such as color, pH, C/N ratio, organic carbon, conductivity, density, NPK availability, and phytotoxicity assays justified the effectiveness. Microbial diversity and suitable seasonal conditions play an important role in the waste degradation process and compost maturity.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Plant Sciences
Somanath Nayak, Yashbir Singh Shivay, Radha Prasanna, Sunil Mandi, Dinesh Kumar, Samrath Lal Meena, Tapan Jyoti Purakayastha, Manoj Shrivastava, Kirttiranjan Baral, Kadapa Sreenivasa Reddy
Summary: The effect of different zinc fertilization strategies on crop yield, zinc content, and zinc translocation indices was assessed. It was found that soil + foliar zinc fertilization significantly increased rice yield, zinc concentration, and total zinc uptake.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Green & Sustainable Science & Technology
Sandeep Gawdiya, Dinesh Kumar, Yashbir S. S. Shivay, Arti Bhatia, Shweta Mehrotra, Mandapelli Sharath Chandra, Anita Kumawat, Rajesh Kumar, Adam H. H. Price, Nandula Raghuram, Himanshu Pathak, Mark A. A. Sutton
Summary: This study aimed to screen rice genotypes with high nitrogen use efficiency under different nitrogen fertilization treatments. The results showed that applying the recommended amount of nitrogen yielded the highest panicles, filled grains panicle, leaf area index, tillers, grain yield, and harvest index. The N-60 and N-120 treatments had a higher effect compared to the N-0 treatment.
Article
Microbiology
Jyoti Rawat, Jyoti Saxena, Pankaj Sanwal, Naga Raju Maddela, Lata Nain, Ram Prasad
Summary: This study investigates the impact of co-inoculation of beneficial fungi on crop yield in agricultural fields. The co-inoculation of P. chrysogenum K4 and A. niger K7 significantly enhances the growth and yield of horse gram, with the P. chrysogenum K4 + A. niger K7 treatment showing the highest yield increase of 71% compared to the control.
CURRENT MICROBIOLOGY
(2023)
Article
Agronomy
Sandeep Gawdiya, Dinesh Kumar, Yashbir Singh Shivay, Babanpreet Kour, Rajesh Kumar, Siyaram Meena, Ravi Saini, Kamal Choudhary, Nadhir Al-Ansari, Abed Alataway, Ahmed Z. Dewidar, Mohamed A. Mattar
Summary: Optimizing nitrogen inputs is crucial for maximizing wheat yield and ensuring environmental sustainability. This study evaluated ten wheat cultivars for their yield and N-use efficiency under varying nitrogen inputs, and found that 'HD 3249' and 'HD 3117' have the potential to improve N utilization efficiency and grain yield in North-West India.
Article
Multidisciplinary Sciences
Venkatesh Kokila, Radha Prasanna, Arun Kumar, Sekar Nishanth, Bhupinder Singh, Shalini Gaur Rudra, Priya Pal, Madan Pal, Yashbir Singh Shivay, Awani Kumar Singh
Summary: This study investigated the effects of diazotrophic cyanobacteria on fruit quality attributes in tomato plants under elevated CO2 conditions. The results showed that cyanobacterial inoculation significantly increased soil microbiological parameters, plant growth attributes, and antioxidant/defense enzyme activities, resulting in higher yields and better-quality parameters of tomatoes, particularly under elevated CO2 conditions. This suggests that cyanobacterial inoculants have the potential to promote tomato crop production and improve fruit quality in the context of climate change.
Article
Biotechnology & Applied Microbiology
Ashish Khandelwal, Ramya Sugavanam, Balasubramanian Ramakrishnan, Lata Nain, Vishal Nanavaty, Tirthankar Banerjee, Eldho Varghese, Neera Singh
Summary: A bacterial consortium and a fungus with crude oil degrading ability were used to degrade petroleum hydrocarbon in contaminated soil. The bacterial consortium showed better degradation performance and altered the soil bacterial community and metabolic pathways compared to the fungus treatment.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)