Early inoculation of an endophyte alters the assembly of bacterial communities across rice plant growth stages.

The core endophytes of plants are regarded as promising resources in future agroecosystems. How they affect the assembly of rice-related bacterial communities after early inoculation remains unclear. Here, we examined bacterial communities across 148 samples, including bulk and rhizosphere soils, sterilized roots, stems, and seeds at the seedling, tillering, booting, and maturity stages.

Isolation and characterization of phosphate-solubilizing bacterium sp. nov. from rhizosphere soil and its effect on growth.

The Bunge, widely distributed in North China, shows excellent tolerance to low-P soils. However, little information is available on potential phosphate-solubilizing bacterial (PSB) strains from the rhizosphere. The objectives of this work were to isolate and characterize PSB from rhizosphere soil and to evaluate the effect of inoculation with the selected strain on seedlings.

sp. nov., an oligotrophic bacterium isolated from a tomato plant in China.

A Gram-positive, rod-shaped, motile, endospore-forming strain, DXFW5, was isolated from the rhizosphere soil of tomato. Strain DXFW5 grew at 20-50 °C (optimum, 25-37 °C), pH 5-8 (optimum, pH 7) and in the presence of 3 % NaCl. It was positive for catalase and oxidase.

Dynamics of rice microbiomes reveal core vertically transmitted seed endophytes.

Background: Plants and their associated microbiota constitute an assemblage of species known as holobionts. The plant seed microbiome plays an important role in nutrient uptake and stress attenuation. However, the core vertically transmitted endophytes remain largely unexplored.

Metabacillus rhizolycopersici sp. nov., Isolated from the Rhizosphere Soil of Tomato Plants.

A Gram-positive, endospore-forming, rod-shaped and aerobic bacterium, with swarming and swimming motility, designated strain DBTR6, was isolated from the rhizosphere soil of tomato plants. Strain DBTR6 grew at 20-45 ℃ (optimum 30-37℃), pH 4-9 (optimum 7-8) and at salinities from 0 to 5% (optimum 1%). Phylogenetic analysis using 16S rRNA gene sequences showed this strain belonged to the genus Metabacillus and was most closely related to Metabacillus litoralis DSM 16303 (98.

sp. nov., isolated from the rhizosphere soil of .

A Gram-negative, rod-shaped aerobic bacterium designated as strain 2R12 was isolated from the rhizosphere soil of . Phylogenetic analyses based on the 16S rRNA gene revealed that strain 2R12 should be assigned to the genus with the highest sequence similarity to DSM 3695 (99.1 %) and DSM 18108 (98.

Mixed plantations of and change soil fungal and archaeal communities and enhance soil phosphorus availability in Shanghai, China.

Soil degradation has been found in urban forests in Shanghai, especially in the pure plantations. Mixed plantations are considered to improve soil quality because they can stimulate organic matter cycling and increase soil carbon and nutrient content. Although soil microbes play crucial roles in regulating soil biogeochemical processes, little is known about how mixed plantations affect soil microbial communities, including bacteria, archaea, and fungi.

Diversity patterns and drivers of soil microbial communities in urban and suburban park soils of Shanghai, China.

Background: The rapid expansion of urbanization leads to significant losses of soil ecological functions. Microbes directly participate in key soil processes and play crucial roles in maintaining soil functions. However, we still have a limited understanding of underlying mechanisms shaping microbial communities and the interactions among microbial taxa in park soils.

Rhizobium rhizolycopersici sp. nov., Isolated from the Rhizosphere Soil of Tomato Plants in China.

During characterization of rhizobacteria, strain DBTS2 was isolated from the rhizosphere soil samples of healthy tomato plants and characterized using a polyphasic taxonomic approach. Phylogenetic analysis using 16S rRNA gene sequences showed this strain belonged to the genus Rhizobium and was most closely related to Rhizobium subbaraonis JC85 (99.1%) and Rhizobium daejeonense CCBAU 10050 (97%).

sp. nov., isolated from rice seeds.

A Gram-stain-positive, facultatively anaerobic, endospore-forming bacterium, designated strain TD8, was isolated from surface-sterilized rice seeds ( L.). Phylogenetic analysis of the 16S rRNA gene indicated that strain TD8 should be placed within the genus (95.

Arthrobacter crusticola sp. nov., Isolated from Biological Soil Crusts in the Mu Us Sandy Land, China.

Mu Us Sandy Land in China is a very fragile ecological environment due to serious desertification. While attempting to gain insights into the biodiversity of biological soil crusts of Mu Us Sandy Land, a novel bacterial strain, SLN-3, was isolated. It was phylogenetically placed into the genus Arthrobacter within the family Micrococcaceae based on its 16S rRNA gene sequence.

sp. nov., isolated from the roots of rice.

A novel Gram-stain-negative strain, designated ZYY5, was isolated from rice roots. Results of 16S rRNA gene analysis indicated that strain ZYY5 was a member of the genus , with a highest similarity to DSM 18068 (98.5%).

sp. nov. Isolated from Greenhouse Soil in Beijing, China.

A novel Gram-stain-positive, rod-shaped, endospore-forming bacterium, which we designated as strain 03113, was isolated from greenhouse soil in Beijing, China. Phylogenetic analysis based on 16S rRNA gene sequences showed strain 03113 is in the genus and had the highest similarity to CCTCC AB 2014277 (98.14%).

sp. nov., isolated from rice.

Two yellow-pigmented, Gram-stain-negative and rod-shaped bacterial strains, designated as RY24 and ZYY160, were isolated from rice. Results of phylogenetic analysis based on 16S rRNA gene sequences showed that strains RY24 and ZYY160 belonged to the genus , and the 16S rRNA gene sequence similarity was 100 % The DNA homology between the two strains was 99.7 %.

Pseudomonas urumqiensis sp. nov., isolated from rhizosphere soil of Alhagi sparsifolia.

A motile, Gram-stain-negative, fusiform-shaped bacterium, designated strain T3, was isolated from rhizosphere soil of Alhagi sparsifolia, collected from Xinjiang, PR China. Strain T3 grew at 15-42 °C, pH 4-9 and 1-6 % (w/v) NaCl concentrations. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain T3 belonged to the genus Pseudomonas and showed highest similarity of 98.