Article
Plant Sciences
Palakshi Borah, Nirmali Gogoi, Saeed Ahmad Asad, Aparna Jyoti Rabha, Muhammad Farooq
Summary: Plant growth-promoting rhizobacteria play a vital role in improving plant growth and yield through various mechanisms. Their application offers a sustainable approach to reduce the use of chemical fertilizers, with economic and environmental benefits.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Horticulture
Aruna Kumari Andy, Vishnu D. Rajput, Marina Burachevskaya, Vinod Singh Gour
Summary: Naturally available plant growth-promoting rhizobacteria (PGPR) have the ability to decrease ethylene levels and enhance abiotic stress tolerance in plants by processing plant-borne ACC through ACC deaminase enzymes. In this study, two rhizobacterial strains, Bacillus cereus and B. haynesii, were isolated from Vigna mungo and Phaseolus vulgaris and identified using 16S rDNA sequencing. The strains showed high ACC deaminase activity, exopolysaccharide yield, and indole acetic acid production, indicating their potential in improving drought tolerance and crop yield. Bacillus cereus also exhibited tolerance to As, Ba, and Ni, suggesting its suitability as a biofertilizer in fields affected by these metals.
Article
Plant Sciences
Urooj Haroon, Maria Khizar, Fiza Liaquat, Musrat Ali, Mahnoor Akbar, Kinza Tahir, Syeda Saira Batool, Asif Kamal, Hassan Javed Chaudhary, Muhammad Farooq Hussain Munis
Summary: This study evaluated the growth-promoting characteristics of three bacterial strains in wheat plants under salinity stress. The results showed that these rhizobacteria positively influenced the physiology, biochemistry, and antioxidant enzymatic activities of the plants, mitigating the adverse effects of salinity stress. Additionally, inoculation of these bacteria increased the expression of stress tolerance genes and can potentially improve the plant's ability to tolerate salinity stress.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Horticulture
Yingdan Yuan, Mengting Zu, Lanping Sun, Jiajia Zuo, Jun Tao
Summary: Plant growth-promoting rhizobacteria (PGPR) strains were isolated from the rhizosphere soil of Paeonia lactiflora cultivars and found to have diverse growth-promoting abilities and mechanisms. Inoculating with these strains significantly enhanced the growth and development of Paeonia lactiflora and Arabidopsis thaliana.
SCIENTIA HORTICULTURAE
(2022)
Review
Biotechnology & Applied Microbiology
Yong Sun Moon, Sajid Ali
Summary: Plant growth-promoting rhizobacteria (PGPR) colonize the plant rhizosphere and play a crucial role in promoting plant growth and mitigating abiotic stress. ACC deaminase-producing PGPR have been extensively used for improving crop growth under various stress conditions. However, the mechanism of ACC acquisition by ACC deaminase-producing bacteria is not well understood.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Review
Soil Science
M. Murali, H. G. Gowtham, S. Brijesh Singh, N. Shilpa, M. Aiyaz, S. R. Niranjana, K. N. Amruthesh
Summary: In agriculture, eco-friendly management practices are needed to enhance food security while avoiding harmful chemicals, with PGPR being considered as a potential alternative for plant growth improvement. ACC deaminase producing PGPR can help balance plant ethylene levels under abiotic stresses, showing promise as an environmental remediation approach. The selection of potential PGPR strain is critical, and plant responses to environmental conditions vary depending on various factors.
APPLIED SOIL ECOLOGY
(2021)
Review
Microbiology
Mohammad Shahid, Udai B. B. Singh, Mohammad Saghir Khan, Prakash Singh, Ratan Kumar, Raj Narian Singh, Arun Kumar, Harsh V. V. Singh
Summary: Growth and productivity of crop plants worldwide are often adversely affected by stresses, both biotic and abiotic. Ethylene production in plants is induced by most stresses, which is detrimental to their growth and survival. Therefore, managing ethylene production in plants is becoming an attractive option for countering the negative effects on crop yield and productivity.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Plant Sciences
Anmol Gupta, Smita Rai, Ambreen Bano, Swati Sharma, Manoj Kumar, Reem Binsuwaidan, Mohammad Suhail Khan, Tarun Kumar Upadhyay, Nawaf Alshammari, Mohd Saeed, Neelam Pathak
Summary: This study found that two bacterial isolates, GKP KS2_7 (Pseudomonas aeruginosa) and MBD 133 (Bacillus subtilis), have ACC deaminase activity, which can inhibit the overproduction of ethylene and mitigate the negative effects of salinity stress on Pisum sativum through promoting various plant growth-promoting traits.
Article
Plant Sciences
Chaitanya Kumar Jha, Priyanka Sharma, Arpit Shukla, Paritosh Parmar, Rohit Patel, Dweipayan Goswami, Meenu Saraf
Summary: Ethylene has dual effects in plants, being harmful and beneficial, while microbes help reduce ethylene levels in plants by producing ACC deaminase, thereby promoting plant growth.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2021)
Article
Microbiology
Shahid Ali, Naeem Khan
Summary: Drought stress is expected to have negative impacts on plant growth and productivity, but plants have evolved complex physiological and biochemical mechanisms to adapt to water-deficient environments. Plant growth-promoting rhizobacteria (PGPR) also play a significant role in alleviating plant drought stress, enhancing drought tolerance through various mechanisms such as producing volatile compounds and phytohormones.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Plant Sciences
Francisco Arenas, Alvaro Lopez-Garcia, Luis Miguel Berna, Asuncion Morte, Alfonso Navarro-Rodenas
Summary: This study investigated the seasonal variation in the bacterial community associated with desert truffle plants and found that summer was the period with the lowest microbial diversity and PGPR functions, while spring was the most active period. The findings are important for further understanding the potential role of desert truffle plants in symbiosis with bacteria and for possible management strategies.
Article
Plant Sciences
Shikha Gupta, Sangeeta Pandey, Vashista Kotra, Atul Kumar
Summary: The consortium inoculation with strains R1 and R4 modified the root system to boost seedling growth, increase the zinc content of French bean pods, and reduce salinity stress.
Review
Biochemistry & Molecular Biology
Dhanashree Vijayra Bomle, Asha Kiran, Jeevitha Kodihalli Kumar, Lavanya Senapathyhalli Nagaraj, Chamanahalli Kyathegowda Pradeep, Mohammad Azam Ansari, Saad Alghamdi, Ahmed Kabrah, Hamza Assaggaf, Anas S. Dablool, Mahadevamurthy Murali, Kestur Nagaraj Amruthesh, Arakere Chunchegowda Udayashankar, Siddapura Ramachandrappa Niranjana
Summary: Soil salinity stress is a major obstacle to food production worldwide, with strategies such as plant breeding and genetic engineering improving plant resistance to salinity stress to meet future food demand. The use of PGPR with ACC deaminase activity has shown promise in mitigating the impact of saline conditions and improving seed germination and seedling vigor. The variation of antioxidants and osmolytes in ACC deaminase-producing PGPR treated plants is also examined.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Microbiology
Rodrigo Mattos Silva Galeano, Fernanda Maria de Russo Godoy, Lais Mayara Melo Dure, Paulo Ivan Fernandes-Junior, Jose Ivo Baldani, Gecele Matos Paggi, Fabiana Fonseca Zanoelo, Marivaine Silva Brasil
Summary: The study isolated bacterial strains from ironstone outcrops in Brazil, with Bacillus cereus VBE23 demonstrating higher activity and tolerance under drought conditions, showing potential as a beneficial strategy for promoting plant growth.
CURRENT MICROBIOLOGY
(2021)
Article
Environmental Sciences
Sabiha Habib, Ambreen Ahmed
Summary: The study highlights an organic approach using plant growth promoting rhizobacteria to enhance plant growth and nutritional status, leading to significant improvements in chlorophyll, carotenoid, soluble sugar, amino acids, protein, phenolic, and total alkaloid content in Zea mays plants.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2021)
Article
Geosciences, Multidisciplinary
Adriana Giongo, Taiana Haag, Renata Medina-Silva, Roberto Heemann, Leandro M. Pereira, Priscilla M. Zamberlan, Fernanda P. Valdez, Rafael R. Oliveira, Eduardo Eizirik, Adriano R. Viana, Joao Marcelo M. Ketzer
GEOSCIENCES JOURNAL
(2020)
Article
Ecology
Maiara Monteiro Oliveira, Audrey Menegaz Proenca, Eduardo Moreira-Silva, Aline Machado de Castro, Francine Melise dos Santos, Leticia Marconatto, Renata Medina-Silva
Summary: The study evaluates deep-sea sediment bacterial isolates for biofilm adhesion, extracellular matrix production, and polymer degradation ability. High-density polyethylene (HDPE) fragments were subjected to abiotic weathering prior to bacterial colonization. Marine isolates exhibited different biofilm formation and extracellular matrix production strategies on weathered HDPE, suggesting potential for biodegradation of plastic fragments.
Article
Microbiology
Rafaela Mendonca Nozari, Francieli Ortolan, Leandro Vieira Astarita, Eliane Romanato Santarem
Summary: This study characterized rhizobacteria isolates from the genus Streptomyces as plant growth-promoting rhizobacteria (PGPR) and evaluated their role in maize under saline stress conditions. Four Streptomyces isolates were found to exhibit PGPR traits and salinity tolerance, promoting growth of maize plants and alleviating the negative effects of saline stress. Root colonization by Streptomyces spp. was confirmed in plants cultivated under saline stress for 20 days, demonstrating the potential of these bacteria in improving crop yield under stress conditions.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Maria Eduarda Lanes Baldino, Renata Medina-Silva, Juliana Sumienski, Maria Antonia Figueiredo, Fernanda Goncalves Salum, Karen Cherubini
Summary: The study evaluates the effect of nystatin on the efficacy of chlorhexidine against Streptococcus mutans. Results show that nystatin interferes with the action of chlorhexidine and the efficacy of the combined drugs depends on concentration, time interval, and the behavior of the microorganisms in planktonic or biofilm form.
CLINICAL ORAL INVESTIGATIONS
(2022)
Article
Biotechnology & Applied Microbiology
Maiara Monteiro Oliveira, Audrey Menegaz Proenca, Eduardo Moreira-Silva, Francine Melise Santos, Leticia Marconatto, Aline Machado Castro, Renata Medina-Silva
Summary: This study evaluated the catabolic properties and early adhesion ability of five yeast isolates from deep-sea sediment on high-density polyethylene (HDPE). It was found that two isolates exhibited high adhesion ability on HDPE, with one isolate showing the most efficient colonization and production of polysaccharides and lipids after 48 h of incubation. These findings contribute to understanding the interactions between deep-sea yeast strains and plastic pollutants in oceans.
JOURNAL OF APPLIED MICROBIOLOGY
(2022)
Article
Plant Sciences
Bruno de Souza Basso, Gabriela Viegas Haute, Marti Ortega-Ribera, Carolina Luft, Gessica Luana Antunes, Matheus Scherer Bastos, Leonardo Pfeiff Carlessi, Vitor Giancarlo Levorse, Eduardo Cassel, Marcio Vinicius Fagundes Donadio, Eliane Romanato Santarem, Jordi Gracia-Sancho, Jarbas Rodrigues de Oliveira
Summary: Methoxyeugenol has been proposed as a novel therapeutic approach with potential for treating chronic liver disease and fibrosis. Studies have shown that methoxyeugenol can decrease HSC activation and prevent oxidative stress damage to hepatocytes, leading to reduced inflammatory responses and fibrotic gene expression in liver fibrosis models.
JOURNAL OF ETHNOPHARMACOLOGY
(2021)
Article
Microbiology
Audrey Menegaz Proenca, Maiara Monteiro Oliveira, Paula Fernanda Ribas Neves, Adriana Giongo, Rafael Rodrigues de Oliveira, Carolina Telles Ott, Leticia Marconatto, Halesio Milton Correa de Barros Neto, Joao Marcelo Medina Ketzer, Renata Medina-Silva
Summary: Researchers have characterized microorganisms isolated from sediment in the Rio Grande Cone in Brazil, including various species such as Brevibacillus, Paenibacillus, Bacillus, and strains from the Pseudomonas fluorescens complex. They found that a novel strain of Pseudomonas harbored 32 genes related to mercury resistance, not found in its closest related type-species. These results provide phylogenetic and genomic insights into bacterial isolates from a previously unexplored region of the South Atlantic Ocean.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Pharmacology & Pharmacy
Matheus Scherer Bastos, Rafaela Mallmann Saalfeld, Bruna Pasqualotto Costa, Krist Helen Antunes, Denizar Melo, Marcio Vinicius Fagundes Donadio, Eliane Romanato Santarem, Jarbas Rodrigues de Oliveira
Summary: Coumaric acid has the potential to be a therapeutic agent for liver fibrosis. It can reduce cell proliferation, inhibit the expression of cell cycle proteins, and revert activated liver cells to a quiescent state.
NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY
(2023)
Correction
Pharmacology & Pharmacy
Matheus Scherer Bastos, Rafaela Mallmann Saalfeld, Bruna Pasqualotto Costa, Krist Helen Antunes, Denizar Melo, Marcio Vinicius Fagundes Donadio, Eliane Romanato Santarem, Jarbas Rodrigues de Oliveira
NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY
(2023)
Article
Agronomy
Rafaela Mendonca Nozari, Luisa Machado Ramos, Laura Alcantara da Luz, Rafael Nolibos Almeida, Aline Machado Lucas, Eduardo Cassel, Silvia Dias de Oliveira, Leandro Vieira Astarita, Eliane Romanato Santar
Summary: Plant Growth Promoting Rhizobacteria (PGPR) can alleviate the detrimental effects of salinity in plants. In this study, we characterized Streptomyces spp. as halotolerant PGPR and evaluated their influence on salt stress-tolerance mechanisms in maize plants. The results showed that Streptomyces isolates had good tolerance to salt and could enhance the antioxidant system activity and osmolyte synthesis in plants. The response to salinity was observed in both roots and leaves, indicating a mechanism of systemic tolerance.
Article
Plant Sciences
Matheus Scherer Bastos, Rafaela Mallmann Saalfeld, Bruna Pasqualotto Costa, Maria Claudia Garcia, Krist Helen Antunes, Ketlin Fernanda Rodrigues, Denizar Melo, Eliane Romanato Santarem, Jarbas Rodrigues de Oliveira
Summary: This study aimed to use the ethanolic extract and fractions of Moquiniastrum polymorphum subsp. polymorphum in the treatment of hepatic fibrosis, and the results suggest a potential therapeutic effect against liver fibrosis.
JOURNAL OF ETHNOPHARMACOLOGY
(2023)
Article
Multidisciplinary Sciences
Adriana Giongo, Luiz Gustavo dos Anjos Borges, Leticia Marconatto, Pamela de Lara Palhano, Maria Pilar Serbent, Eduardo Moreira-Silva, Tiago de Abreu Siqueira, Caroline Thais Martinho, Rosalia Barili, Lisie Valeria Paz, Leticia Isabela Moser, Carolina De Marco Verissimo, Joao Marcelo Medina Ketzer, Renata Medina-Silva
