Exemplar Abstract for Mesorhizobium loti (Jarvis et al. 1982) Jarvis et al. 1997 emend. Hördt et al. 2020 and Rhizobium loti Jarvis et al. 1982.

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Sarah Wigley ◽  
George M Garrity
Keyword(s):  
Mesorhizobium Loti ◽  
Rhizobium Loti

Engineering Mesorhizobium loti pyridoxamine–pyruvate aminotransferase for production of pyridoxamine with l-glutamate as an amino donor

2010 ◽  
Vol 67 (1-2) ◽  
pp. 104-110 ◽  
Author(s):  
Yu Yoshikane ◽  
Asuka Tamura ◽  
Nana Yokochi ◽  
Khalil Ellouze ◽  
Eitora Yamamura ◽  
...  
Keyword(s):  
Mesorhizobium Loti ◽  
Amino Donor

scholarly journals Construction of Signature-tagged Mutant Library in Mesorhizobium loti as a Powerful Tool for Functional Genomics

DNA Research ◽  
2008 ◽  
Vol 15 (5) ◽  
pp. 297-308 ◽  
Author(s):  
Y. Shimoda ◽  
H. Mitsui ◽  
H. Kamimatsuse ◽  
K. Minamisawa ◽  
E. Nishiyama ◽  
...  
Keyword(s):  
Functional Genomics ◽  
Mutant Library ◽  
Mesorhizobium Loti

Functional analysis of three AHL autoinducer synthase genes in Mesorhizobium loti reveals the important role of quorum sensing in symbiotic nodulation

2009 ◽  
Vol 55 (2) ◽  
pp. 210-214 ◽  
Author(s):  
Menghua Yang ◽  
Kejing Sun ◽  
Lei Zhou ◽  
Ruifu Yang ◽  
Zengtao Zhong ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Homoserine Lactone ◽  
Culture Conditions ◽  
Native Plant ◽  
Plant Host ◽  
Mesorhizobium Loti ◽  
Sensing Systems ◽  
Regulatory Circuits ◽  
Legume Symbiosis ◽  
Successful Establishment

One of the most important signal transduction pathways in bacteria, quorum sensing, is involved in many regulatory circuits in rhizobia, especially in the control of communication between rhizobia and their plant hosts. In this study, we identified 3 autoinducer synthase genes — mrlI1, mrlI2, and mrlI3 — in Mesorhizobium loti NZP 2213. We found that MrlI1 and MrlI2 could synthesize distinct N-acyl homoserine lactone (AHL) autoinducers in rich medium cultures, and the expression of mrlI1 was shown to be growth-phase-dependent. MrlI3 did not produce any detectable AHL molecules under the culture conditions tested. To investigate whether these AHL synthases affect nodulation, we examined the nodulation of AHL-deficient mutants on their native plant host Lotus corniculatus and found that the efficiency of nodulation of bacteria with mutations of any of these 3 synthase genes was reduced, suggesting that quorum sensing systems in M. loti may play an important role in successful establishment of rhizobium–legume symbiosis.

scholarly journals In vitro growth and indoleacetic acid production by Mesorhizobium loti SEMIA806 and SEMIA816 under the influence of copper ions

2017 ◽  
Vol 8 (2) ◽  
Author(s):  
Jéssica Dutra Vieira ◽  
Paulo Roberto Diniz Da Silva ◽  
Valdir Marcos Stefenon
Keyword(s):  
Contaminated Soils ◽  
Acid Production ◽  
Indoleacetic Acid ◽  
Copper Ions ◽  
Control Culture ◽  
Control Treatment ◽  
Symbiotic Interaction ◽  
Mesorhizobium Loti ◽  
Significant Difference

The indoleacetic acid produced by symbiotic bacteria is an important phytohormone signaling microbe-plant interaction, being therefore essential for rhizoremediation. In this study, the effect of different concentrations of copper ions on the bacterial growth and indoleacetic acid production was investigated in two strains of Mesorhizobium loti in in vitro conditions, aiming to determine critical concentrations of this heavy metal for rhizoremediation of contaminated soils using this bacterium. The experiment consisted on a control culture without copper and three treatments supplemented with 10 mg.L-1, 20 mg.L-1 or 50 mg.L-1 of CuSO4. For both strains, the growth stopped after 48h and no significant difference was observed across treatments. The production of indoleacetic acid by the control treatment without copper was significantly higher in comparison to the copper- containing treatments. Mesorhizobium loti SEMIA806 and SEMIA816 are resistant to up to 50 mg.L-1 of CuSO4 in the culture medium, presenting effective growth. The synthesis of indoleacetic acid was strongly reduced but not excluded by ions copper in the medium. So, it is expected that environmental copper found in the soil up to the concentration of 50 mg.L-1 will not preclude the symbiotic interaction between M. loti and leguminous host plant in rhizoremediation enterprises.

scholarly journals Disclosure of the differences of Mesorhizobium loti under the free-living and symbiotic conditions by comparative proteome analysis without bacteroid isolation

2013 ◽  
Vol 13 (1) ◽  
pp. 180 ◽  
Author(s):  
Yohei Tatsukami ◽  
Mami Nambu ◽  
Hironobu Morisaka ◽  
Kouichi Kuroda ◽  
Mitsuyoshi Ueda
Keyword(s):  
Proteome Analysis ◽  
Free Living ◽  
Mesorhizobium Loti

scholarly journals High-Quality draft genome sequence of the Lotus spp. microsymbiont Mesorhizobium loti strain CJ3Sym

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Wayne Reeve ◽  
John Sullivan ◽  
Clive Ronson ◽  
Rui Tian ◽  
Christine Munk ◽  
...  
Keyword(s):  
Genome Sequence ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
High Quality ◽  
Mesorhizobium Loti

scholarly journals Comparative Metagenomics Reveals Microbial Signatures of Sugarcane Phyllosphere in Organic Management

2021 ◽  
Vol 12 ◽  
Author(s):  
Ahmad Nuruddin Khoiri ◽  
Supapon Cheevadhanarak ◽  
Jiraporn Jirakkakul ◽  
Sudarat Dulsawat ◽  
Peerada Prommeenate ◽  
...  
Keyword(s):  
Microbial Community ◽  
Organic Farming ◽  
Keystone Species ◽  
Taxonomic Diversity ◽  
Plant Growth Promoting Bacteria ◽  
Shotgun Metagenomics ◽  
Mesorhizobium Loti ◽  
Metagenome Analysis ◽  
Microbial Network ◽  
Plant Growth Promoting

Converting conventional farms to organic systems to improve ecosystem health is an emerging trend in recent decades, yet little is explored to what extent and how this process drives the taxonomic diversity and functional capacity of above-ground microbes. This study was, therefore, conducted to investigate the effects of agricultural management, i.e., organic, transition, and conventional, on the structure and function of sugarcane phyllosphere microbial community using the shotgun metagenomics approach. Comparative metagenome analysis exhibited that farming practices strongly influenced taxonomic and functional diversities, as well as co-occurrence interactions of phyllosphere microbes. A complex microbial network with the highest connectivity was observed in organic farming, indicating strong resilient capabilities of its microbial community to cope with the dynamic environmental stressors. Organic farming also harbored genus Streptomyces as the potential keystone species and plant growth-promoting bacteria as microbial signatures, including Mesorhizobium loti, Bradyrhizobium sp. SG09, Lactobacillus plantarum, and Bacillus cellulosilyticus. Interestingly, numerous toxic compound-degrading species were specifically enriched in transition farming, which might suggest their essential roles in the transformation of conventional to organic farming. Moreover, conventional practice diminished the abundance of genes related to cell motility and energy metabolism of phyllosphere microbes, which could negatively contribute to lower microbial diversity in this habitat. Altogether, our results demonstrated the response of sugarcane-associated phyllosphere microbiota to specific agricultural managements that played vital roles in sustainable sugarcane production.

scholarly journals ALotus japonicusE3 ligase interacts with the Nod factor receptor 5 and positively regulates nodulation

2018 ◽  
Author(s):  
Daniela Tsikou ◽  
Estrella E. Ramirez ◽  
Ioanna S. Psarrakou ◽  
Jaslyn E. Wong ◽  
Dorthe B. Jensen ◽  
...  
Keyword(s):  
Lotus Japonicus ◽  
E3 Ligase ◽  
Kinase Domain ◽  
Plant Interactions ◽  
Post Translational Modification ◽  
Direct Role ◽  
Nod Factor ◽  
Mesorhizobium Loti ◽  
Signaling Systems ◽  
Nodulation Capacity

SUMMARYPost-translational modification of receptor proteins is involved in activation and de-activation of signaling systems in plants. Both ubiquitination and deubiquitination have been implicated in plant interactions with pathogens and symbionts. Here we presentLjPUB13, a PUB-ARMADILLO repeat E3 ligase that specifically ubiquitinates the kinase domain of the Nod Factor receptor NFR5 and has a direct role in nodule organogenesis events inLotus japonicus. Phenotypic analyses of three LORE1 retroelement insertion plant lines revealed thatpub13plants display delayed and reduced nodulation capacity and retarded growth.LjPUB13expression is spatially regulated during symbiosis withMesorhizobium loti, with increased levels in young developing nodules. Thus,LjPUB13 is an E3 ligase with a positive regulatory role during the initial stages of nodulation inL. japonicus.

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