Structure of epiphytic bacterial communities of weeds

Dobrovol’skaya, T. G.; Khusnetdinova, K. A.; Manucharova, N. A.; Golovchenko, A. V.

doi:10.1134/s0026261717020072

Cited by 19 publications

(7 citation statements)

References 10 publications

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“…6e, f that there exist a positive liner correlation between ARGs and MGEs in the water (R = 0.462, p = 0.0045) and sediment samples (R = 0.957, p = 3.9 × 10 -11 ). It indicates that the HGT as a main mechanism is likely to have occurred in the water and sediment for the widespread distribution of ARGs of the Douhe Reservoir and the MGEs may play a role in the persistence and proliferation of related resistance phenotypes [54,55].…”

Section: Factors That Shape the Distribution Of Args And Mges Correla...mentioning

confidence: 99%

Characterization of antibiotic resistance genes in drinking water sources of the Douhe Reservoir, Tangshan, northern China: the correlation with bacterial communities and environmental factors

et al. 2022

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Background Antibiotics and antibiotic resistance genes (ARGs) threaten ecological sustainability and human health, especially the drinking water sources of the Douhe Reservoir, which have critical significance amid their direct use by people and the ecological hub of flora and fauna. Although antibiotics and ARGs pollution in reservoirs have been reported, it is of no practical significance to only study the changes (increase or decrease) of the abundance and diversity of ARGs, and it is more important to explore the mechanisms of the changes affecting ARGs. Thus, the occurrence and prevalence characterizations of the spatial and seasonal of the ARGs, mobile genetic elements (MGEs) and bacterial communities were comprehensively studied in present study. Results 263 ARG (nine types of ARGs) and 51 MGE subtypes were detected in 56 samples, and the characteristics of the temporal and spatial distribution of ARGs, MGEs and the composition of bacterial communities were significantly different. Moreover, the correlation among the ARGs, bacterial communities, MGEs and environmental factors were defined, and the co-occurrence patterns associated with ARG subtypes, bacterial genera, and MGE subtypes between water and sediment of the Douhe Reservoir were different. Conclusions In summary, ARGs were ubiquitous presence in water and sediment of the Douhe Reservoir, and the multidrug, aminoglycoside and macrolide–lincosamide–streptogramin B (MLSB) were main types of ARGs. Bacterial genera and the environmental factors [such as temperature (T), nitrate–nitrogen (NO– 3–N), total dissolved nitrogen (TDN), and total phosphorus (TP)] significantly affected the distribution pattern of ARGs. Overall, this research revealed the spatiotemporal change and transmission mechanisms of ARGs in the typical drinking water sources of reservoirs, which will supply clues to ensure the safety of water sources.

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Section: Factors That Shape the Distribution Of Args And Mges Correla...mentioning

confidence: 99%

Characterization of antibiotic resistance genes in drinking water sources of the Douhe Reservoir, Tangshan, northern China: the correlation with bacterial communities and environmental factors

et al. 2022

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“…Further, the microbiome of phyllosphere is a reflection of environmental conditions; they can contribute significantly to global food webs and nutrient linkages. Many beneficial microbes such as Achromobacter, Bacillus, Beijerinckia, Burkholderia, Flexibacterium, Methylobacterium, Micrococcus, Micromonospora, Nocardioides, Pantoea, Penicillium, Planomonospora, Pseudomonas, Streptomyces, and Xanthomonas have been reported from the phyllosphere environment of different crop plants (Verma et al 2013a, b;Mukhtar et al 2010;Meena et al 2012;Dobrovol'skaya et al 2017). However, compared with most other microbial habitats, the investigation of phyllosphere microbes is quite limited.…”

Section: Biotechnological Potential Of Phyllosphere Microbiotamentioning

confidence: 99%

Phyllospheric Microbiomes: Diversity, Ecological Significance, and Biotechnological Applications

Sivakumar

Sathishkumar

Selvakumar

et al. 2020

Sustainable Development and Biodiversity

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The phyllosphere referred to the total aerial plant surfaces (above-ground portions), as habitat for microorganisms. Microorganisms establish compositionally complex communities on the leaf surface. The microbiome of phyllosphere is rich in diversity of bacteria, fungi, actinomycetes, cyanobacteria, and viruses. The diversity, dispersal, and community development on the leaf surface are based on the physiochemistry, environment, and also the immunity of the host plant. A colonization process is an important event where both the microbe and the host plant have been benefited. Microbes commonly established either epiphytic or endophytic mode of life cycle on phyllosphere environment, which helps the host plant and functional communication with the surrounding environment. To the scientific advancement, several molecular techniques like metagenomics and metaproteomics have been used to study and understand the physiology and functional relationship of microbes to the host and its environment. Based on the available information, this chapter describes the basic understanding of microbiome in leaf structure and physiology, microbial interactions, especially bacteria, fungi, and actinomycetes, and their adaptation in the phyllosphere environment. Further, the detailed information related to the importance of the microbiome in phyllosphere to the host plant and their environment has been analyzed. Besides, biopotentials of the phyllosphere microbiome have been reviewed.

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“…It is known that for a long time, the causative agent of the basal glume rot of wheat had been found as an epiphyte on non-crops plant species and also on annual and perennial weeds [14]. Weeds' ability to serve as an ecological niche for agents of bacterial diseases that can affect crops has been discussed [16], and it was proved experimentally that weeds could serve as sources of dangerous epiphytic populations of phytopathogenic bacteria [17]. At the same time, the presence of the pathogens common both for cultivated plants and weeds in crops and the problem of the specialization of the pathogens that affect weeds remain unclear.…”

Section: Introductionmentioning

confidence: 99%

Characteristic of Pseudomonas syringae pv. atrofaciens Isolated from Weeds of Wheat Field

Butsenko

Pasichnyk

Kolomiiets³

et al. 2020

Applied Sciences

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The aim of this study was the identification of the causative agent of the basal glume rot of wheat Pseudomonas syringae pv. atrofaciens from the affected weeds in wheat crops, and determination of its virulent properties. Isolation of P. syringae pv. atrofaciens from weeds of wheat crops was carried out by classical microbiological methods. To identify isolated bacteria, their morphological, cultural, biochemical, and serological properties as well as fatty acids and Random Amplification of Polymorphic DNA (RAPD)-PCR (Polymerase chain reaction) profiles with the OPA-13 primer were studied. Pathogenic properties were investigated by artificial inoculation of wheat plants and weed plants, from which bacteria were isolated. For the first time, bacteria that are virulent both for weeds and wheat were isolated from weeds growing in wheat crops. It was shown that the fatty acids profiles of the bacteria isolated from the weeds contained typical for P. syringae pv. atrofaciens fatty acids, in particular, hydroxy acids: 3-hydroxydecanoic, 2-hydroxydodecanoic, and 3-hydroxydodecanoic. RAPD-PCR profiles of the newly isolated strains were identical to those of the collection strains P. syringae pv. atrofaciens UCM B-1011 and P. syringae pv. atrofaciens UCM B-1014 and contained a dominant fragment of 700 bp. The isolated strains, according to their phenotypic and genotypic properties, were identified as P. syringae pv. atrofaciens. It was established that the causative agent of basal glume rot of wheat P. syringae pv. atrofaciens is polyphagous and capable of infecting a wide range of plants. The main control measure for cereals diseases caused by P. syringae pv. Atrofaciens—crop rotations with nonhost species, should be revised, and alternative control methods must be proposed.

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Structure of epiphytic bacterial communities of weeds

Cited by 19 publications

References 10 publications

Characterization of antibiotic resistance genes in drinking water sources of the Douhe Reservoir, Tangshan, northern China: the correlation with bacterial communities and environmental factors

Characterization of antibiotic resistance genes in drinking water sources of the Douhe Reservoir, Tangshan, northern China: the correlation with bacterial communities and environmental factors

Phyllospheric Microbiomes: Diversity, Ecological Significance, and Biotechnological Applications

Characteristic of Pseudomonas syringae pv. atrofaciens Isolated from Weeds of Wheat Field

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