<i>Myxococcales</i>

Reichenbach, Hans

doi:10.1002/9781118960608.obm00088

Cited by 6 publications

(4 citation statements)

References 224 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Until recently, three suborders have been described in Myxococcales , i.e. Cystobacterineae , Sorangineae and Nannocystineae , which are further classified into seven families, 20 genera and approximately 50 species (Reichenbach, ; Shimkets et al ., ). Because of their sociality and predatory characteristics, myxobacteria have been estimated to be minority components of niche bacterial communities in terms of both population size and species number.…”

Section: Introductionmentioning

confidence: 99%

Myxobacterial community is a predominant and highly diverse bacterial group in soil niches

Zhou

et al. 2013

Environ Microbiol Rep

View full text Add to dashboard Cite

Although many molecular ecological surveys have been conducted, there is little concerning the details of specific bacterial groups, resulting in an incomplete understanding of the microorganismal composition and community structures in the environment. Myxobacteria are micropredators that are metabolically active in the soil microbial food web and have typically been considered minority components of soil bacterial communities. In this study, we surveyed the percentage of myxobacteria in a single soil sample via pyrosequencing on combined universal libraries of the V3-V4 and V6-V8 hypervariable regions of the 16S rRNA gene. Surprisingly, myxobacteria accounted for 4.10% of the bacterial community and 7.5% of the total operational taxonomic units at the 3% similarity level in the soil, containing almost all of the cultivated myxobacterial families or genera. To testify the appearance of myxobacteria in soil niches, we retrieved myxobacteria-related 16S rRNA gene sequences of 103 high-throughput sequencing data sets obtained from public databases. The results indicated that myxobacteria-related sequences were among the predominant groups in these data sets accounting for 0.4-4.5% of bacterial communities. The abundance of myxobacterial communities were correlated with site temperature, carbon-to-nitrogen ratio and pH values. Based on these results, we discussed the survival strategies of myxobacterial community in soil.

show abstract

Section: Introductionmentioning

confidence: 99%

Myxobacterial community is a predominant and highly diverse bacterial group in soil niches

Zhou

et al. 2013

Environ Microbiol Rep

View full text Add to dashboard Cite

show abstract

“…This order has been associated with organic matter degradation in the seagrass rhizosphere ( Ugarelli et al, 2017 ) and in Posidonia oceanica decaying material ( Rubio-Portillo et al, 2021 ). In soil samples, members of Myxococcales present an aerobic metabolism, although some representatives are anaerobes that respire nitrate or Fe (III) ( Treude et al, 2003 ) and produce a wide range of secondary metabolites ( Reichenbach, 2015 ).…”

Section: Resultsmentioning

confidence: 99%

Factors structuring microbial communities in highly impacted coastal marine sediments (Mar Menor lagoon, SE Spain)

et al. 2022

View full text Add to dashboard Cite

Coastal marine lagoons are environments highly vulnerable to anthropogenic pressures such as agriculture nutrient loading or runoff from metalliferous mining. Sediment microorganisms, which are key components in the biogeochemical cycles, can help attenuate these impacts by accumulating nutrients and pollutants. The Mar Menor, located in the southeast of Spain, is an example of a coastal lagoon strongly altered by anthropic pressures, but the microbial community inhabiting its sediments remains unknown. Here, we describe the sediment prokaryotic communities along a wide range of environmental conditions in the lagoon, revealing that microbial communities were highly heterogeneous among stations, although a core microbiome was detected. The microbiota was dominated by Delta- and Gammaproteobacteria and members of the Bacteroidia class. Additionally, several uncultured groups such as Asgardarchaeota were detected in relatively high proportions. Sediment texture, the presence of Caulerpa or Cymodocea, depth, and geographic location were among the most important factors structuring microbial assemblages. Furthermore, microbial communities in the stations with the highest concentrations of potentially toxic elements (Fe, Pb, As, Zn, and Cd) were less stable than those in the non-contaminated stations. This finding suggests that bacteria colonizing heavily contaminated stations are specialists sensitive to change.

show abstract

“…pLYLO3 and pUC19 based suicide vector for Bacteroides spp., contained ermF and also an origin of transfer which would allow conjugative transfer from E. coli . The ermF gene was not expressed in E. coli (20). pLYO3 was constructed originally from pFD160, which contains pUC19 and the cryptic bacteroides plasmid pBI143 and was the basis for the GUC vector.…”

Section: Resultsmentioning

confidence: 99%

Mutagenesis of the rpoS gene involved in alteration of outer membrane composition

Rahpeyma

2019

IJM

View full text Add to dashboard Cite

Background and Objectives: rpoS is a bacterial sigma factor of RNA polymerase which is involved in the expression of the genes which control regulons and play a critical role in survival against stresses. Few suitable vectors are available which could be maintained successfully in Flexibacter chinesis cells and could in particular be used as a suicide vector to make mutation in the rpoS gene. The aim of this study was to investigate if rpoS mutagenesis has impact on bacterial morphology in addition to cell division. Materials and Methods: A 0.603 kb BamHI-PstI fragment subclone of pICRPOS38Ω was cloned into linearized pLYLO3. The final construct, pLRPOS38 suicide vector, was introduced into Flexibacter chinesis. Then the cytoplasm of mutant strain and wild-type were investigated by transmission electron microscopy. Results: After successful subcloning of suicide vector into F. chinesis, based on TEM study, it was demonstrated that muta- tion in rpoS gene leads to decomposition of outer membrane of F. chinesis. Conclusion: A suitable vector to make suicide mutation in rpoS was constructed for F. chinesi.

show abstract

Myxococcales

Abstract: My.xo.coc.ca' les . M.L. fem. pl. n. Myxococcaceae type family of order; ‐ ales ending to denote an order; M.L. fem. pl. n. Myxococcales the Myxococcaceae order. Proteobacteria / Deltaproteobacteria / Myxococcales

Cited by 6 publications

References 224 publications

Myxobacterial community is a predominant and highly diverse bacterial group in soil niches

Myxobacterial community is a predominant and highly diverse bacterial group in soil niches

Factors structuring microbial communities in highly impacted coastal marine sediments (Mar Menor lagoon, SE Spain)

Mutagenesis of the rpoS gene involved in alteration of outer membrane composition

Contact Info

Product

Resources

About