For microbial ecological analysis, 14 strains of Methylobacterium aquaticum isolated from water samples were subjected to clustering analysis on the basis of ribotyping and RAPD-PCR tests. The ribopatterns after digestion with EcoRI obtained from 14 strains of M. aquaticum were used to divide the strains into two groups (Groups I and II) with a similarity of 55%. From the analysis of RAPD patterns using primer 208, the 14 strains were divided into 3 groups (A-C) based on a homology of 45% or greater, and from that using primer 272, there were 4 groups (A-D) based on a homology of 50% or greater. The chlorine resistance (99.9% CT values) of these isolates was also experimentally confirmed, and we attempted to define the connection between chlorine resistance and the geno-cluster. The average CT value of group I was 0.89 mg•min/l and the average of group II was 0.69 mg•min/l. No remarkable differences in the CT values for the groups were found.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.4265/bio.16.103 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Fermentative Production of Ergothioneine by Exploring Novel Biosynthetic Pathway and Remodulating Precursor Synthesis Pathways.
J Agric Food Chem
June 2024
School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China.
Article Synopsis
- * Researchers developed a new biosynthetic pathway for EGT and optimized production by enhancing precursor supply and modifying metabolic networks, boosting output from 35 to 130 mg/L (a 271.4% increase).
- * The team also created a cost-effective medium using corn steep liquor, achieving a final production of 595 mg/L with a productivity of 8.2 mg/L/h in a 10 L bioreactor, contributing to more efficient and affordable EGT production methods.
Genetic evidence for algal auxin production in and its role in algal-bacterial mutualism.
iScience
January 2024
Departamento de Bioquímica y Biología Molecular. Campus de Rabanales y Campus Internacional de Excelencia Agroalimentario (CeiA3), Edificio Severo Ochoa, Universidad de Córdoba, 14071 Córdoba, Spain.
Interactions between algae and bacteria are ubiquitous and play fundamental roles in nutrient cycling and biomass production. Recent studies have shown that the plant auxin indole acetic acid (IAA) can mediate chemical crosstalk between algae and bacteria, resembling its role in plant-bacterial associations. Here, we report a mechanism for algal extracellular IAA production from L-tryptophan mediated by the enzyme L-amino acid oxidase (LAO1) in the model .
View Article and Find Full Text PDFMetabolism-linked methylotaxis sensors responsible for plant colonization in strain 22A.
Front Microbiol
October 2023
Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan.
Motile bacteria take a competitive advantage in colonization of plant surfaces to establish beneficial associations that eventually support plant health. Plant exudates serve not only as primary growth substrates for bacteria but also as bacterial chemotaxis attractants. A number of plant-derived compounds and corresponding chemotaxis sensors have been documented, however, the sensors for methanol, one of the major volatile compounds released by plants, have not been identified.
View Article and Find Full Text PDFSiderophore for Lanthanide and Iron Uptake for Methylotrophy and Plant Growth Promotion in Strain 22A.
Front Microbiol
July 2022
Institute of Plant Science and Resources, Okayama University, Okayama, Japan.
and species are facultative methylotrophic bacteria that are abundant in the plant phyllosphere. They have two methanol dehydrogenases, MxaF and XoxF, which are dependent on either calcium or lanthanides (Lns), respectively. Lns exist as insoluble minerals in nature, and their solubilization and uptake require a siderophore-like substance (lanthanophore).
View Article and Find Full Text PDFA Periplasmic Lanthanide Mediator, Lanmodulin, in Strain 22A.
Front Microbiol
June 2022
Institute of Plant Science and Resources, Okayama University, Okayama, Japan.
and species oxidize methanol pyrroloquinoline quinone-methanol dehydrogenases (MDHs). MDHs can be classified into two major groups, Ca-dependent MDH (MxaF) and lanthanide (Ln)-dependent MDH (XoxF), whose expression is regulated by the availability of Ln. A set of a siderophore, TonB-dependent receptor, and an ABC transporter that resembles the machinery for iron uptake is involved in the solubilization and transport of Ln.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!