Methylobacterium phyllosphaerae sp. nov., a pink-pigmented, facultative methylotroph from the phyllosphere of rice

Madhaiyan, Munusamy; Prabakaran, S.; Kwon, Soon-Wo; Sa, Tongmin

doi:10.1099/ijs.0.001693-0

Cited by 88 publications

(51 citation statements)

References 47 publications

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“…Although in low occurrence, Methylobacterium was found in the tissue of sugarcane, and this result corroborates with previous studies that reported this genus associated with sugarcane (Madhaiyan et al, 2006), rice (Madhaiyan et al, 2009), sunflower, corn, and soybean (Raja et al, 2008). These bacteria promote the plant growth through several mechanisms, such as using methanol as carbon source, production of hormones, auxins, and cytokinins (Raja et al, 2008).…”

Section: Resultssupporting

confidence: 90%

Diversity of plant growth-promoting bacteria associated with sugarcane

Antunes¹,

Lyra²,

Ollero³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. The sugarcane (Saccharum spp) presents economic importance, mainly for tropical regions, being an important Brazilian commodity. However, this crop is strongly dependent on fertilizers, mainly nitrogen (N). This study assessed the plant growth-promoting bacteria (PGPB) associated with sugarcane that could be used as a potential inoculant to the crop. We evaluated the genetic diversity of PGPB in the plant tissue of sugarcane varieties (RB 867515, RB 1011, and RB 92579). The primer BOX-A1R was used to differentiate the similar isolated and further sequencing 16S rRNA ribosomal gene. The 16S rRNA gene showed the presence of seven different genera distributed into four groups, the genus Bacillus, followed by Paenibacillus (20%), Burkholderia (14%), Herbaspirillum (6%), Pseudomonas (6%), Methylobacterium (6%), and Brevibacillus (3%). The molecular characterization of endophytic isolates from sugarcane revealed a diversity of bacteria colonizing this plant, with a possible biotechnological potential to be used as inoculant and biofertilizers.

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Section: Resultssupporting

confidence: 90%

Diversity of plant growth-promoting bacteria associated with sugarcane

Antunes¹,

Lyra²,

Ollero³

et al. 2017

Genet. Mol. Res.

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“…So far, a number of bacterial isolates from the rice phyllosphere have been characterized (Elbeltagy et al, 2000;Madhaiyan et al, 2007Madhaiyan et al, , 2009Mano et al, 2007) and potential beneficial interactions of phyllosphere bacteria with rice plants, such as plant growth promotion, for example, by bacterial nitrogen fixation or plant hormone production, and protection against pathogens have been studied (Madhaiyan et al, 2004;Maliti et al, 2005;De Costa et al, 2008;Yang et al, 2008;Chinnadurai et al, 2009;Pedraza et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Metaproteogenomic analysis of microbial communities in the phyllosphere and rhizosphere of rice

et al. 2011

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The above-and below-ground parts of rice plants create specific habitats for various microorganisms. In this study, we characterized the phyllosphere and rhizosphere microbiota of rice cultivars using a metaproteogenomic approach to get insight into the physiology of the bacteria and archaea that live in association with rice. The metaproteomic datasets gave rise to a total of about 4600 identified proteins and indicated the presence of one-carbon conversion processes in the rhizosphere as well as in the phyllosphere. Proteins involved in methanogenesis and methanotrophy were found in the rhizosphere, whereas methanol-based methylotrophy linked to the genus Methylobacterium dominated within the protein repertoire of the phyllosphere microbiota. Further, physiological traits of differential importance in phyllosphere versus rhizosphere bacteria included transport processes and stress responses, which were more conspicuous in the phyllosphere samples. In contrast, dinitrogenase reductase was exclusively identified in the rhizosphere, despite the presence of nifH genes also in diverse phyllosphere bacteria.

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“…The 16S rDNA gene sequences were amplified with universal primers 27F (5ʹ-agagtttgatcatggctcag-3ʹ) and 1492R (5ʹ-tacggttaccttgttacgactt-3ʹ) [35]. The PCR products were then analysed via agarose gel electrophoresis.…”

Section: Isolation and Identification Of Bacterium C Israelensis Ld532mentioning

confidence: 99%

Biomineralization of Carbonate Minerals Induced by the Halophilic <em>Chromohalobacter israelensis</em> under High Salt Concentrations: Implications for Natural Environments

Han¹,

Li²,

Zhao³

et al. 2017

Preprint

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Abstract:The mechanism underlying microbiologically induced carbonate precipitation have not been thoroughly characterized, although numerous scholars and experts have specifically investigated questions regarding minerals induced by bacteria. The study of the precipitation of carbonate minerals induced by halophilic bacteria has aroused wide concern. The present study aimed to investigate the characterization and process of biomineralization in high salt systems by a halophilic bacterium, Chromohalobacter israelensis strain LD532 (GenBank: KX766026), which was isolated from the Yinjiashan Saltern in China. Carbonate minerals induced by LD532 were investigated in several sets of comparative experiments that employed magnesium sulfate and magnesium chloride as Mg resources. Magnesium calcite and aragonite were induced by LD532 bacteria, whereas these minerals did not appear in the control group. The mineral phases, micromorphologies, and crystal structures were analysed using X-ray powder diffraction, scanning electron microscopy, and energy dispersive X-ray detection. The carbonic anhydrase and urease secreted by strain LD532 through metabolism increased the pH value of the liquid medium and promoted the process of carbonate precipitation. Further study using high resolution transmission electron microscopy, energy dispersive X-ray detection and analysis of ultrathin slices showed that the nucleation sites of carbonate minerals were located on extracellular polymeric substances and the membranes of intracellular vesicles of LD532 bacteria, which provided favourable conditions for the growth of carbonate mineral crystals. The morphologies and compositions of minerals formed in solutions of MgSO4 and MgCl2 display significant differences, indicating that different sources of Mg 2+ may also affect the physiological and biochemical activities of microorganisms and thus mineral deposition. This study will be of some interest for the interpretation of carbonate biomineralization in natural salt environments and has some value as a reference in understanding sedimentary carbonates in ancient marine environments, such as tidal flats.

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Methylobacterium phyllosphaerae sp. nov., a pink-pigmented, facultative methylotroph from the phyllosphere of rice

Cited by 88 publications

References 47 publications

Diversity of plant growth-promoting bacteria associated with sugarcane

Diversity of plant growth-promoting bacteria associated with sugarcane

Metaproteogenomic analysis of microbial communities in the phyllosphere and rhizosphere of rice

Biomineralization of Carbonate Minerals Induced by the Halophilic <em>Chromohalobacter israelensis</em> under High Salt Concentrations: Implications for Natural Environments

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