Article
Green & Sustainable Science & Technology
Ting-Chen Tu, Shih-Han Lin, Fo-Ting Shen
Summary: This study identified both rhizobial and non-rhizobial bacteria associated with soybean root nodules, with the former showing high nitrogen-fixing activity and the latter possessing multiple plant growth-promoting traits. Co-inoculation with Bradyrhizobium and Pseudomonas isolates in strongly acidic soils significantly enhanced nutrients' acquisition and growth of soybean.
Article
Plant Sciences
Elismar Pereira de Oliveira, Poliana Prates de Souza Soares, Genilson Lima Santos, Ranyelly Leao Coutrim, Fabia Giovana do Val de Assis, Divino Levi Miguel, Patricia Lopes Leal
Summary: This study evaluated the efficiency of arbuscular mycorrhizal fungi (AMF) and the effect of co-inoculation with Bradyrhizobium on mineral accumulation and growth of two cowpea cultivars. The results showed that inoculation with C. etunicatum had positive effects on plant growth and nitrogen-phosphorus accumulation, while co-inoculation with Bradyrhizobium had positive effects on root dry mass, chlorophyll index, and phosphorus content.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Agronomy
A. Kluga, L. Dubova, I. Alsina, N. Rostoks
Summary: Rhizobia are soil bacteria that form nodules on legumes and fix atmospheric nitrogen. This study identified bacteria isolated from nodules in Latvian soils using the full-length 16S rRNA gene sequence. The study revealed a wide taxonomic diversity, including strains from alpha-, beta-, gamma-proteobacteria classes and Paenibacillus polymyxa strains from the Bacilli class. Some strains also showed phosphate solubilising properties.
ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
(2023)
Article
Soil Science
Rafael de Almeida Leite, Lucas Cesar Martins, Luan Valladares dos Santos Franca Ferreira, Ernandes Silva Barbosa, Bruno Jose Rodrigues Alves, Jerri Edson Zilli, Adelson Paulo Araujo, Ederson da Conceicao Jesus
Summary: The co-inoculation of Bradyrhizobium with Rhizobium can enhance the growth and grain yield of common beans. The beneficial effect may not only be attributed to biological nitrogen fixation but also to a plant growth-promoting mechanism. Further adjustments are needed to optimize the response under field conditions.
APPLIED SOIL ECOLOGY
(2022)
Article
Multidisciplinary Sciences
Susan P. Sambol, Stuart Johnson, Adam Cheknis, Dale N. Gerding
Summary: This study successfully transferred the pathogenicity locus (PaLoc) from toxigenic Clostridioides difficile strain to a nontoxigenic strain CD37 but not to the nontoxigenic strain NTCD-M3r. This finding provides important insights into the mechanism of toxin transfer in Clostridioides difficile.
Article
Microbiology
Wen Feng Chen, Xiang Fei Meng, Yin Shan Jiao, Chang Fu Tian, Xin Hua Sui, Jian Jiao, En Tao Wang, Sheng Jun Ma
Summary: The development of bacteroids in the nodules of peanut and Sophora flavescens was investigated by using a single rhizobial strain, Bradyrhizobium arachidis. Bacteroids in peanut nodules were swollen and had a higher nitrogen fixation efficiency compared to nonswollen bacteroids in Sophora flavescens nodules. Transcriptome analysis revealed similar gene expression patterns in terms of nitrogen fixation and motility, but differences in urease activity and peptidoglycan biosynthesis.
MICROBIOLOGY SPECTRUM
(2023)
Article
Soil Science
Julierme Zimmer Barbosa, Mariangela Hungria, Stephen A. Prior, Maria Cecilia Moura, Giovana Poggere, Antonio Carlos Vargas Motta
Summary: Co-inoculation of legumes with rhizobia and Trichoderma spp. can promote plant growth, reduce disease incidence, increase root mass, nodule number, and nodule nitrogenase activity, as well as improve shoot nitrogen content and grain yield. Co-inoculation decreases root diseases caused by various pathogens and has potential as a plant growth promoter regardless of plant health.
APPLIED SOIL ECOLOGY
(2022)
Article
Microbiology
Wael Toukabri, Nouha Ferchichi, Dorsaf Hlel, Mohamed Jadlaoui, Oussema Kheriji, Ridha Mhamdi, Darine Trabelsi
Summary: The research aimed to select efficient rhizobia and plant growth-promoting rhizobacteria (PGPR) from fenugreek nodules for bio-inoculum in intercropped fenugreek and barley. Sinorhizobium meliloti F42 and Variovorax paradoxus F310 showed significant improvements in plant growth and soil enzyme activities in low-rainfall regions. Co-inoculation with both strains may reduce nodulation and shoot nitrogen content in the plants.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Microbiology
Watcharapol Suyapoh, Janina E. E. Tirnitz-Parker, Sirikachorn Tangkawattana, Sutas Suttiprapa, Banchob Sripa
Summary: Co-infection with the cagA strain of Helicobacter pylori exacerbates the pathology of Opisthorchis viverrini infection, with the worms potentially facilitating the colonization of H. pylori.
Article
Multidisciplinary Sciences
Milena Vera, Sarah Zuern, Carlos Henriquez-Valencia, Carlos Loncoman, Javier Canales, Frank Waller, Esteban Basoalto, Sigisfredo Garnica
Summary: This study investigates the colonization and impact of native strains of endophytic insect-pathogenic fungi on perennial ryegrass in southern Chile. The results suggest that these fungi have little effect on the aboveground biomass of the mini-pastures, indicating that their function may lie in other aspects such as protection against root herbivory by insect pests.
Article
Agronomy
Roshan Pudasaini, Omar A. Hewedy, Manish N. Raizada
Summary: One billion people globally suffer from protein malnutrition, and grain legumes can be a solution. In this study, it was shown that crushing root nodules onto legume seeds improved nodulation and chlorophyll under field conditions. The method of nodulation crushing offers a simple way to diffuse elite rhizobia strains, which can benefit subsistence legume farmers.
FRONTIERS IN AGRONOMY
(2023)
Article
Plant Sciences
Nan Gao, Huanhuan Zhang, Ruonan Xiong, Li Fang, Weishou Shen, Keishi Senoo
Summary: This study developed a method for monitoring plant growth-promoting rhizobacteria (PGPR) and investigated the colonization dynamics and strategies of Azospirillum sp. strains in plant rhizosphere soils. The results showed that different PGPR strains may have different colonization and prevalence strategies after inoculation.
SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Microbiology
Ahsanul Salehin, Ramesh Raj Puri, Md Hafizur Rahman Hafiz, Kazuhito Itoh
Summary: The colonization potential of biofertilizer Bacillus sp. OYK strain isolated from soil was compared with three rhizospheric and endophytic Bacillus sp. strains on tomato plants, showing differences in population and growth promotion effects. Co-inoculation and time interval inoculation with other endophytes also influenced the plant growth promotion and colonization potentials of the Bacillus sp. strains.
MICROBIOLOGY RESEARCH
(2021)
Article
Microbiology
Craig L. Carpenter, Merlin White, Marcelo D. Serpe
Summary: In sagebrush steppes of Western North America, dark septate endophytic fungi (DSEs) were found to have impacts on native plants, affecting root tissue integrity and AMF colonization but not plant biomass. The presence of DSE increased both AMF colonization rate and intraradical storage structure frequency in plants.
Article
Agronomy
Pilar Martinez-Hidalgo, Ethan A. Humm, David W. Still, Baochen Shi, Matteo Pellegrini, Gabriela de la Roca, Esteban Veliz, Maskit Maymon, Pierrick Bru, Marcel Huntemann, Alicia Clum, Krishnaveni Palaniappan, Neha Varghese, Supratim Mukherjee, T. B. K. Reddy, Chris Daum, Natalia N. Ivanova, Nikos C. Kyrpides, Nicole Shapiro, Emiley A. Eloe-Fadrosh, Ann M. Hirsch
Summary: By studying the legume nodule microbiome, researchers were able to identify potential Plant Growth-Promoting Bacteria from Medicago nodules. They isolated and characterized 51 bacterial strains, including Bacillus and Micromonospora, which showed growth-promoting activities in planta. The comparison of biodiversity between undomesticated and cultivated Medicago roots and nodules highlighted the potential of these microbes for sustainable agriculture.
Article
Microbiology
Juan Guzman, Maite Ortuzar, Anja Poehlein, Rolf Daniel, Martha E. Trujillo, Andreas Vilcinskas
Summary: A novel Gram-stain-positive bacterial species, designated Agromyces archimandritae sp. nov., was isolated from the hindgut of the cockroach Archimandrita tesselata. The genomic and phenotypic analysis revealed that G127AT(T) represents a previously undescribed species of the genus Agromyces.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Clinical Neurology
Rocio Alfaro-Ruiz, Carolina Aguado, Alejandro Martin-Belmonte, Ana Esther Moreno-Martinez, Jesus Merchan-Rubira, Felix Hernandez, Jesus Avila, Yugo Fukazawa, Rafael Lujan
Summary: N-methyl-D-aspartate receptors are important in Alzheimer's disease, and their expression and localization differ at synaptic and extrasynaptic sites, which is associated with accumulation of phospho-tau.
Article
Microbiology
Raul Riesco, Jayson J. A. Rose, Steven Batinovic, Steve Petrovski, Fernando Sanchez-Juanes, Robert J. Seviour, Michael Goodfellow, Martha E. Trujillo
Summary: This study investigated the taxonomic status of two Gordonia strains isolated from stable foams on activated sludge plants. The results showed that these isolates represent a novel species of the genus Gordonia, named Gordonia pseudamarae.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Biochemical Research Methods
Patricia Benito, Daniele Ligorio, Javier Bellon, Lynne Yenush, Jose M. Mulet
Summary: This study evaluates the potential of different biostimulants using two different model organisms and explores the additive, synergistic or antagonistic effects of different combinations of biostimulants to design new formulations with enhanced effects on plant growth or tolerance to abiotic stress. The method enables a fast screening of various products in a combinatorial manner to develop novel formulations of natural extracts with biostimulant potential.
Article
Clinical Neurology
Alejandro Martin-Belmonte, Carolina Aguado, Rocio Alfaro-Ruiz, Ana Esther Moreno-Martinez, Luis de la Ossa, Ester Aso, Laura Gomez-Acero, Ryuichi Shigemoto, Yugo Fukazawa, Francisco Ciruela, Rafael Lujan
Summary: Studies have shown a reduction in GIRK channel density, a decrease in co-clustering between GABA(B) receptors and GIRK2 channels, leading to dysregulation in GABA signaling via GIRK channels in an Alzheimer's disease animal model.
ALZHEIMERS RESEARCH & THERAPY
(2022)
Article
Biochemistry & Molecular Biology
Rocio Alfaro-Ruiz, Carolina Aguado, Alejandro Martin-Belmonte, Ana Esther Moreno-Martinez, Jesus Merchan-Rubira, Felix Hernandez, Jesus Avila, Yugo Fukazawa, Rafael Lujan
Summary: The accumulation of tau proteins in diseases like Alzheimer's disease is associated with alterations in glutamate receptor dynamics, leading to synaptic dysfunction. This study investigated the impact of tau pathology on AMPAR expression, density, and distribution in the hippocampus of P301S mice. The results showed that the accumulation of phospho-tau resulted in reduced AMPAR density in excitatory synapses on pyramidal cell spines and interneuron dendrites, as well as at extrasynaptic sites in CA1 pyramidal cells and interneurons. These findings suggest that tau pathology disrupts AMPAR trafficking and synaptic transmission, contributing to the pathological events in Alzheimer's disease.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Patricia Benito, Daniele Ligorio, Javier Bellon, Lynne Yenush, Jose M. Mulet
Summary: Climate change is leading to increased drought and salinity, which threatens food production. Biostimulants, such as yucca extracts, have been found to promote plant growth under different abiotic stress conditions. These extracts have shown particular effectiveness in enhancing germination and early vigor, as well as acting as a natural fungicide. Overall, yucca extracts offer a new and useful tool for farmers to combat the effects of climate change on crop production.
Review
Plant Sciences
Noor Khan, Ethan A. Humm, Akshaya Jayakarunakaran, Ann M. Hirsch
Summary: A rapidly increasing human population coupled with climate change and over-reliance on synthetic fertilizers has led to food insecurity and land degradation. It is crucial to actively pursue practices that promote both soil and plant health as well as sustainability.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Patricia Benito, Javier Bellon, Rosa Porcel, Lynne Yenush, Jose M. Mulet
Summary: Potassium humate is a widely used biostimulant that enhances growth and improves stress tolerance in plants. This study investigated the mechanism of action of potassium humate using Arabidopsis thaliana. The results showed that potassium humate increased the fresh weight accumulation of Arabidopsis plants under normal, salt, and osmotic stress conditions. Plants treated with potassium humate exhibited a reduced antioxidant response and lower proline accumulation, while maintaining photosynthetic activity under stress. Metabolomic analysis revealed changes in starch and sugar levels, indicating alterations in starch utilization and an increase in glycolysis. Overall, the study suggests that the molecular mechanism underlying the stress tolerance induced by potassium humate involves its ability to alter starch content.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Multidisciplinary
Habiba Kouki, Ismail Amri, Mouna Souihi, Ylenia Pieracci, Imen Trabelsi, Lamia Hamrouni, Guido Flamini, Ann M. Hirsch, Yassine Mabrouk
Summary: Medicinal plants produce natural bioactive molecules and compounds called secondary metabolites with important biological properties. This study aimed to determine the chemical composition of essential oils obtained from three Tunisian species of Eucalyptus and evaluate their biological activities. The analysis identified 45 different compounds, with specific components found in each species of Eucalyptus. The essential oils exhibited low antioxidant capacity but showed significant antifungal activity against Fusarium spp. Moreover, preliminary tests suggested potential herbicidal activity against weed species. These findings suggest potential applications for these essential oils in agriculture.
JOURNAL OF PLANT DISEASES AND PROTECTION
(2023)
Review
Cell Biology
Carolina Aguado, Alejandro Martin-Belmonte, Rocio Alfaro-Ruiz, Ana Esther Martinez-Moreno, Rafael Lujan
Summary: The histoblot technique is an effective method for protein detection in tissues, allowing for protein quantitation and analysis of tissue distribution. It combines the advantages of western blot and immunohistochemical methods, providing accessibility of proteins while preserving anatomical resolution. It has become a trusted alternative to reveal and compare protein distribution in the brain under different conditions.
HISTOLOGY AND HISTOPATHOLOGY
(2023)
Correction
Plant Sciences
Pilar Martinez-Hidalgo, Ann M. Hirsch
PHYTOBIOMES JOURNAL
(2022)
Article
Plant Sciences
Patricia Benito, Lorena Carro, Rodrigo Bacigalupe, Maite Ortuzar, Martha E. Trujillo
Summary: Micromonospora strains have been found in nitrogen-fixing root nodules of legume and actinorhizal plants, and can also colonize other parts of the plant, especially the leaves. This study observed over 150 strains and determined their enzymatic activity.
PHYTOBIOMES JOURNAL
(2022)
Correction
Plant Sciences
Pilar Martinez-Hidalgo, Ann M. Hirsch
PHYTOBIOMES JOURNAL
(2022)