Article
Plant Sciences
Bernardo Sachman-Ruiz, Arnoldo Wong-Villarreal, Liliana Aguilar-Marcelino, Luis Fernando Lozano-Aguirre, Saul Espinosa-Zaragoza, Ana Laura Reyes-Reyes, Diana Sanzon-Gomez, Ana Isabel Mireles-Arriaga, Rodrigo Romero-Tirado, Marisol Karina Rocha-Martinez, Juan Diego Perez-de la Rosa, Ricardo Sanchez-Cruz, Jaime Adriel Gomez-Gutierrez
Summary: The nematicidal and acaricidal activity of three Enterobacter endophytic strains isolated from Mimosa pudica nodules was evaluated in this study. These strains exhibited potential as biocontrol agents and plant growth-promoting bacteria in agricultural crops based on their characteristics and genetic analysis.
Article
Microbiology
Angelika Fiodor, Nur Ajijah, Lukasz Dziewit, Kumar Pranaw
Summary: Seed priming methods can improve seed germination and seedling vigor, and also help plants withstand abiotic stress. Among these methods, biopriming stands out as it not only provides the aforementioned benefits but also manages biotic stress. Biopriming using beneficial microorganisms, especially plant growth-promoting bacteria, is an environmentally-friendly alternative to chemical fungicides and has been proven effective in various crops worldwide. In this study, bacterial strains were isolated from different sources and screened based on their solubilization ability of potassium, phosphorus, and production of the plant growth hormone indole acetic acid. The most efficient bacteria were identified and further examined for their additional plant growth-promoting properties. Carrot seed germination assays were conducted with the selected potent isolates, and several isolates showed positive effects on germination. The study emphasizes the role of auxins in seed germination and suggests that phosphate solubilization ability may also play a role.
FRONTIERS IN MICROBIOLOGY
(2023)
Review
Agronomy
Gustavo Santoyo, Paulina Guzman-Guzman, Fannie Isela Parra-Cota, Sergio de los Santos-Villalobos, Ma. del Carmen Orozco-Mosqueda, Bernard R. Glick
Summary: Plant-associated microorganisms play a crucial role in promoting plant growth, especially when microbial consortia are involved, leading to additive or synergistic effects. Research focuses on understanding the mechanisms by which different microorganisms interact to enhance plant growth.
Review
Multidisciplinary Sciences
Jianfeng Du, Yang Li, Saif-Ur-Rehman, Irum Mukhtar, Ziyi Yin, Hansong Dong, Hongfeng Wang, Xiaoying Zhang, Zheng Gao, Xiangyu Zhao, Xiufang Xin, Xinhua Ding
Summary: This review discusses the advantages and limitations of using microbial preparations to manage soil-borne diseases, and proposes an innovative synthetic microbial community assembly strategy. This approach aims to promote healthy plant growth, enhance plant disease resistance, and lay the theoretical foundation for the development of new microbial preparations.
Article
Multidisciplinary Sciences
Likhindra Reang, Shraddha Bhatt, Rukam Singh Tomar, Kavita Joshi, Shital Padhiyar, U. M. Vyas, Jasmin Kumar Kheni
Summary: This study investigated the characteristics of halophilic and halotolerant bacteria isolated from agricultural soils in the coastal regions of Saurashtra Gujarat, and found that these bacteria have promising plant growth promoting characteristics. They have the potential to alleviate salinity stress in crops and contribute to bioremediation.
SCIENTIFIC REPORTS
(2022)
Article
Biotechnology & Applied Microbiology
Zhaomei Lu, Sheng He, Muhammad Kashif, Zufan Zhang, Shuming Mo, Guijiao Su, Linfang Du, Chengjian Jiang
Summary: In this study, the effect of ammonium stress on phosphorus solubilization of phosphate-solubilizing microorganisms (PSMs) was investigated. The results showed that the soluble phosphate concentration in culture supernatant reached a maximum under certain ammonium conditions. Whole-genome and transcriptome analysis revealed the genes and metabolic pathways involved in ammonium stress response and phosphorus solubilization. The accumulation of 2-oxoglutarate and the inhibition of glutamine synthetase/glutamate synthase pathway played a key role in ammonium detoxification, while the secretion of protons, formic acid and acetic acid was related to phosphorus solubilization under ammonium stress.
Review
Plant Sciences
Lorena Jacqueline Gomez-Godinez, Jose Luis Aguirre-Noyola, Esperanza Martinez-Romero, Ramon Ignacio Arteaga-Garibay, Javier Ireta-Moreno, Jose Martin Ruvalcaba-Gomez
Summary: Bacteria have been applied to crops to increase their productivity, with constantly changing formulations in liquid and solid-based products. Natural isolates are mainly selected as inoculants, as they exhibit various strategies in the rhizosphere to promote plant growth. Plants, on the other hand, have mechanisms to maintain beneficial microorganisms through the secretion of chemoattractants and signaling pathways. Transcriptomic approaches are useful in studying plant-microorganism interactions.
Review
Environmental Sciences
Rui Chen, Ruolin Qin, He Bai, Xiaoqiang Jia
Summary: This review covers the metabolic mechanisms of PCB degradation by monocultures and microbial consortia, and focuses on recent developments in the development and optimization of PCB-degrading microbial consortia, community composition analysis methods, prevailing optimization strategies such as biostimulation, bioaugmentation, metagenomics, and combination of other methods. This review provides theoretical and practical bases for the rational design, construction and further optimization of efficient microbial consortia for the high-efficiency degradation of PCBs.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Review
Microbiology
Ivana F. Della Monica, Arnoldo Wong Villarreal, Pablo J. Stefanoni Rubio, Rocio Vaca-Paulin, Gustavo Yanez-Ocampo
Summary: Rhizospheric and root-endophyte bacteria can promote plant growth through diverse mechanisms, making them valuable for sustainable agriculture management and soil restoration. Accurate methodologies and laboratory techniques are essential for the isolation and characterization of these bacteria.
ARCHIVES OF MICROBIOLOGY
(2022)
Review
Soil Science
Bruno Carneiro, Paulo Cardoso, Etelvina Figueira, Isabel Lopes, Catia Venancio
Summary: With the increasing global population, new solutions are needed to ensure food security in a future influenced by climate change and ecological instability. The expansion of degraded soil areas, caused by drought or salinity, that are no longer suitable for agriculture, poses a challenge to this goal. However, the exploration of microorganisms like rot fungi and plant growth-promoting rhizobacteria, whether individually or combined, can help improve soil health and productivity. Further research is needed on the potential synergism between these two groups and their use as agricultural enhancers.
APPLIED SOIL ECOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Iryna Rusyn
Summary: This paper discusses the role of microbiome and plants in Plant Microbial Fuel Cells (PMFCs) and their impact on improving performance. It analyzes the species diversity of electroactive microorganisms, the microbial community of PMFCs, and the contribution of syntrophic and competitive microorganisms to electrogenesis. The paper also highlights the diverse applications of PMFCs, including green energy production, remediation of wastewater, biosensing, food production, and elimination of greenhouse gases.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Microbiology
Silvia Tabacchioni, Stefania Passato, Patrizia Ambrosino, Liren Huang, Marina Caldara, Cristina Cantale, Jonas Hett, Antonella Del Fiore, Alessia Fiore, Andreas Schlueter, Alexander Sczyrba, Elena Maestri, Nelson Marmiroli, Daniel Neuhoff, Joseph Nesme, Soren Johannes Sorensen, Giuseppe Aprea, Chiara Nobili, Ombretta Presenti, Giusto Giovannetti, Caterina Giovannetti, Anne Pihlanto, Andrea Brunori, Annamaria Bevivino
Summary: The study focuses on developing multifunctional synthetic microbial consortia combined with suitable bioactive compounds to enhance crop yield and quality. Microorganisms identified as plant growth-promoting microbes were synthetically assembled into three different microbial consortia. Testing of the effects of bioactive compounds on microbial growth was conducted, with the products recommended for further greenhouse and open field trials.
Article
Genetics & Heredity
Jianfei Wu, Fan Gao, Tongtong Li, Haixia Guo, Li Zhang, Yijie Fan, Aiyun Chen, Jianjun Wang, Fengjuan Shi, Guangyao Shan, Huihui Guo, Fanchang Zeng
Summary: Auxin, a hormone, plays a crucial role in various aspects of plant development. This study proposes a method to identify genes responsive to auxin in the model plant Arabidopsis thaliana. By analyzing specific regulatory elements in gene promoters, the researchers were able to predict candidate genes with an accuracy rate of 65.2%. The results provide valuable insights into the understanding of auxin-responsive genes and improve gene annotation.
Review
Microbiology
Luana Alves de Andrade, Carlos Henrique Barbosa Santos, Edvan Teciano Frezarin, Luziane Ramos Sales, Everlon Cid Rigobelo
Summary: Plant Growth-Promoting Rhizobacteria (PGPR) promote plant growth and health through various mechanisms such as increased nutrient availability, phytohormone production, protection against pathogens, and reduction of diseases. PGPR also help plants withstand abiotic stresses and detoxify plants from heavy metals. PGPR are important in sustainable agriculture for reducing synthetic fertilizers and pesticides, promoting plant growth and enhancing soil quality.
Article
Biotechnology & Applied Microbiology
Vijaya Rani, Arti Bhatia, Lata Nain, Govind Singh Tomar, Rajeev Kaushik
Summary: Methane utilizing bacteria have been identified in flooded paddy ecosystems in India, showing potential for reducing methane emission and promoting plant growth. Through sampling and analysis, certain bacterial genera such as Hyphomicrobium, Pseudomonas, and others were found to be efficient in methane oxidation and plant growth promotion. These bacteria could serve as promising candidates for developing novel biofertilizers in flooded paddy fields.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2021)
Article
Plant Sciences
Toyosi Ijato, Romano Porras-Murillo, Pascal Ganz, Uwe Ludewig, Benjamin Neuhaeuser
Summary: Conventional wheat production relies on nitrogen fertilizers, with ammonium-nitrate showing superior growth effects. However, high concentrations of sole ammonium can lead to toxicity and reduced biomass accumulation. Through studying wheat's ammonium transporter, TaAMT1 was found to increase expression in response to nitrogen starvation and ammonium resupply.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Nino Bindel, Benjamin Neuhauser
Summary: In plants, high affinity transport proteins play a crucial role in mediating the essential transport of ammonium across membranes. Arabidopsis thaliana encodes six AMmonium Transporters (AMTs) which exhibit unique expression patterns, with AtAMT1;4 specifically expressed in pollen grains and the pollen tube. Through electrophysiological analysis, AtAMT1;4 was classified as a high affinity ammonium transporter due to its transport saturation and high affinity for ammonium with a K-m value lower than 10 mu M.
ACTA PHYSIOLOGIAE PLANTARUM
(2021)
Article
Agronomy
Moritz Hallama, Carola Pekrun, Stefan Pilz, Klaus A. Jarosch, Magdalena Frac, Marie Uksa, Sven Marhan, Ellen Kandeler
Summary: Cover crops were able to increase microbially mediated internal phosphorus cycling in this experiment, while the effects of no-till on organic P cycling were weaker and did not show synergy with cover crops.
Article
Environmental Sciences
Maria Rechberger, Daniela Roberti, Avion Phillips, Franz Zehetner, Katharina M. Keiblinger, Ellen Kandeler, Martin H. Gerzabek
Summary: The behavior of trace metals, specifically cadmium, in volcanic soils can vary significantly, especially in areas where agriculture is causing anthropogenic contamination. Factors such as substrate age and climate elevation can influence the retention capacity of cadmium in soils, with older volcanic soils having a weaker sorption capacity. This can potentially lead to the transfer of cadmium into the food chain through soil microorganisms.
JOURNAL OF ENVIRONMENTAL QUALITY
(2021)
Article
Plant Sciences
Yaping Zhou, Philipp Olt, Benjamin Neuhauser, Narges Moradtalab, William Bautista, Claudia Uhde-Stone, Gunter Neumann, Uwe Ludewig
Summary: White lupin forms cluster roots under phosphorus deficiency to mobilize soil phosphates, with citrate released through MATE/DTX proteins. LaMATE and LaMATE3 are candidate genes for citrate release in mature clusters, inducing inward-rectifying currents when expressed in oocytes.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Soil Science
Lion Schoepfer, Uwe Schnepf, Sven Marhan, Franz Bruemmer, Ellen Kandeler, Holger Pagel
Summary: Microplastics (MP) do not significantly impact the abundance and activity of soil microorganisms. Only large particles of hydrolyzable polymer (PLA/PBAT) are mineralized by microorganisms in dry soil. PLA/PBAT plastisphere serves as a specific habitat for lipase-producing soil microorganisms.
BIOLOGY AND FERTILITY OF SOILS
(2022)
Article
Agronomy
Moritz Hallama, Carola Pekrun, Paula Mayer-Gruner, Marie Uksa, Yulduz Abdullaeva, Stefan Pilz, Michael Schloter, Hans Lambers, Ellen Kandeler
Summary: This study provides new insights into plant-microbe interactions and phosphorus availability by investigating the phosphorus cycling in cover crops and the enzyme availability of organic phosphorus pools in the rhizosheath soil.
Article
Agronomy
Sophia Hendricks, Sophie Zechmeister-Boltenstern, Ellen Kandeler, Taru Sanden, Eugenio Diaz-Pines, Joerg Schnecker, Oliver Alber, Julia Miloczki, Heide Spiegel
Summary: This study aimed to investigate the sensitivity of parameters such as active carbon and nitrogen mineralisation potential to different agricultural management practices compared to total organic carbon and total nitrogen. The research found that active carbon and nitrogen mineralisation potential are valuable soil biochemical parameters providing detailed information on carbon and nitrogen dynamics, especially in terms of depth distribution and seasonal dynamics, making them more sensitive indicators for agricultural management practices.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2022)
Article
Soil Science
Antonios Apostolakis, Ingo Schoening, Beate Michalzik, Valentin H. Klaus, Runa S. Boeddinghaus, Ellen Kandeler, Sven Marhan, Ralph Bolliger, Markus Fischer, Daniel Prati, Falk Haensel, Thomas Nauss, Norbert Hoelzel, Till Kleinebecker, Marion Schrumpf
Summary: Soil respiration is an important pathway of soil organic carbon losses in temperate grasslands. Fertilization intensity has a positive effect on soil CO2 efflux, while grazing intensity, plant biomass, and plant C:N ratio have no relationship with soil CO2 efflux.
NUTRIENT CYCLING IN AGROECOSYSTEMS
(2022)
Article
Biochemistry & Molecular Biology
Jing Hui, Xia An, Zhibo Li, Benjamin Neuhaeuser, Uwe Ludewig, Xuna Wu, Waltraud X. Schulze, Fanjun Chen, Gu Feng, Hans Lambers, Fusuo Zhang, Lixing Yuan
Summary: This study identified a gene, ZmAMT3;1, in maize roots that plays a crucial role in the uptake of ammonium, enhancing the plant's ability to acquire nitrogen from the soil through symbiotic interactions with arbuscular mycorrhizal fungi (AMFs). The research also revealed that AMFs can regulate the expression and activity of other nitrogen transport proteins in the root epidermis, indicating a trade-off between mycorrhizal and direct root nitrogen uptake pathways.
Article
Agronomy
Romano Porras-Murillo, Yufen Zhao, Jinling Hu, Toyosi Ijato, Joseline Palafox Retamal, Uwe Ludewig, Benjamin Neuhaeuser
Summary: Ammonium uptake in wheat roots is mainly dependent on two AMmonium Transporters (AMT1), while the wheat genome contains 4 to 6 AMT2 type transporters. AMT2 type transporters in plants generally function in root-to-shoot translocation, pathogenic and symbiotic plant-microorganism interactions. The study revealed the activity of TaAMT2s in ammonium transport, suggesting that TaAMT2;1 plays a role in ammonium uptake and TaAMT2;2-6 are involved in ammonium distribution.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2023)
Review
Agronomy
Sara L. Bauke, Wulf Amelung, Roland Bol, Luise Brandt, Nicolas Brueggemann, Ellen Kandeler, Nele Meyer, Dani Or, Andrea Schnepf, Michael Schloter, Stefanie Schulz, Nina Siebers, Christian von Sperber, Harry Vereecken
Summary: This article investigates the relationship between soil water status and the cycling of nitrogen, phosphorus, and sulfur in agroecosystems. It discusses the impact of soil water on nutrient imbalance and availability at different scales. Water plays a crucial role in nutrient cycling in agroecosystems, affecting the balance and availability of nutrients across different levels.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2022)
Article
Environmental Studies
Rudi Hessel, Guido Wyseure, Ioanna S. Panagea, Abdallah Alaoui, Mark S. Reed, Hedwig van Delden, Melanie Muro, Jane Mills, Oene Oenema, Francisco Areal, Erik van den Elsen, Simone Verzandvoort, Falentijn Assinck, Annemie Elsen, Jerzy Lipiec, Aristeidis Koutroulis, Lilian O'Sullivan, Martin A. Bolinder, Luuk Fleskens, Ellen Kandeler, Luca Montanarella, Marius Heinen, Zoltan Toth, Moritz Hallama, Julian Cuevas, Jantiene E. M. Baartman, Ilaria Piccoli, Tommy Dalgaard, Jannes Stolte, Jasmine E. Black, Charlotte-Anne Chivers
Summary: Soils are essential for agriculture and ecosystem services, and their management should focus on improving quality and resilience. The SoilCare project developed the concept of soil-improving cropping systems (SICS) as a holistic approach to promote sustainable and profitable soil management. The adoption of SICS by stakeholders was monitored and evaluated for environmental, sociocultural, and economic effects. The project emphasized the importance of understanding local dynamics in Europe-wide assessments and highlighted the role of economic considerations and social factors such as trust in the uptake of SICS. The results pointed to the need for coherent policies to support a transition to more sustainable agricultural practices.
Article
Environmental Studies
Abdallah Alaoui, Moritz Hallama, Roger Baer, Ioanna Panagea, Felicitas Bachmann, Carola Pekrun, Luuk Fleskens, Ellen Kandeler, Rudi Hessel
Summary: Assessing agricultural sustainability is a challenging task that requires considering multidisciplinary factors and cultural values. This study developed a methodology to assess the sustainability of soil improving cropping systems and tested it in a case study.
Article
Soil Science
Sascha Scherer, Benjamin Hoepfer, Katleen Deckers, Elske Fischer, Markus Fuchs, Ellen Kandeler, Jutta Lechterbeck, Eva Lehndorff, Johanna Lomax, Sven Marhan, Elena Marinova, Julia Meister, Christian Poll, Humay Rahimova, Manfred Roesch, Kristen Wroth, Julia Zastrow, Thomas Knopf, Thomas Scholten, Peter Kuehn
Summary: This study reconstructs land use practices during the Middle Bronze Age in the northwestern Alpine foreland through a multi-proxy approach, revealing the subsistence economy and settlement land management practices of the period. It was found that the Middle Bronze Age in this region was characterized by the establishment of settlements and sophisticated land management practices.