scholarly journals The effect of microbial inoculant origin on the rhizosphere bacterial community composition and plant growth-promotion

2020 ◽  
Vol 452 (1-2) ◽  
pp. 105-117 ◽  
Author(s):  
Yian Gu ◽  
Ke Dong ◽  
Stefan Geisen ◽  
Wei Yang ◽  
Yaner Yan ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Plant Growth ◽  
Community Composition ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Bacterial Community Composition ◽  
Microbial Inoculant ◽  
Rhizosphere Bacterial Community

The use of indigenous bacterial community as inoculant for plant growth promotion in soybean cultivation

2021 ◽  
pp. 1-16
Author(s):  
Andre May ◽  
Luciana Fontes Coelho ◽  
Alexandre Pedrinho ◽  
Bruna Durante Batista ◽  
Lucas William Mendes ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion

scholarly journals Root-Associated Endophytic Bacterial Community Composition of Pennisetum sinese from Four Representative Provinces in China

2019 ◽  
Vol 7 (2) ◽  
pp. 47 ◽  
Author(s):  
Zhen-Shan Deng ◽  
Bao-Cheng Zhang ◽  
Xiang-Ying Qi ◽  
Zhi-Hong Sun ◽  
Xiao-Long He ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Community Composition ◽  
Endophytic Bacteria ◽  
Growth Promotion ◽  
Bacterial Community Composition ◽  
Shannon Index ◽  
Plant Production ◽  
Total Carbon ◽  
Shaanxi Province ◽  
Endophytic Bacterial Community

Pennisetum sinese, a source of bio-energy with high biomass production, is a species that contains high crude protein and will be useful for solving the shortage of forage grass after the implementation of “Green for Grain” project in the Loess plateau of Northern Shaanxi in 1999. Plants may receive benefits from endophytic bacteria, such as the enhancement of plant growth or the reduction of plant stress. However, the composition of the endophytic bacterial community associated with the roots of P. sinese is poorly elucidated. In this study, P. sinese from five different samples (Shaanxi province, SX; Fujian province, FJ; the Xinjiang Uyghur autonomous prefecture, XJ and Inner Mongolia, including sand (NS) and saline-alkali land (NY), China) were investigated by high-throughput next-generation sequencing of the 16S rDNA V3-V4 hypervariable region of endophytic bacteria. A total of 313,044 effective sequences were obtained by sequencing five different samples, and 957 effective operational taxonomic units (OTUs) were yielded at 97% identity. The phylum Proteobacteria, the classes Gammaproteobacteria and Alphaproteobacteria, and the genera Pantoea, Pseudomonas, Burkholderia, Arthrobacter, Psychrobacter, and Neokomagataea were significantly dominant in the five samples. In addition, our results demonstrated that the Shaanxi province (SX) sample had the highest Shannon index values (3.795). We found that the SX (308.097) and NS (126.240) samples had the highest and lowest Chao1 richness estimator (Chao1) values, respectively. Venn graphs indicated that the five samples shared 39 common OTUs. Moreover, according to results of the canonical correlation analysis (CCA), soil total carbon, total nitrogen, effective phosphorus, and pH were the major contributing factors to the difference in the overall composition of the bacteria community in this study. Our data provide insights into the endophytic bacteria community composition and structure of roots associated with P. sinese. These results might be useful for growth promotion in different samples, and some of the strains may have the potential to improve plant production in future studies.

scholarly journals Nutrient recovery from anaerobic digestion of food waste: impacts of digestate on plant growth and rhizosphere bacterial community composition and potential function in ryegrass

2020 ◽  
Vol 56 (7) ◽  
pp. 973-989
Author(s):  
Ai-Tian Ren ◽  
Lynette K. Abbott ◽  
Yinglong Chen ◽  
You-Cai Xiong ◽  
Bede S. Mickan
Keyword(s):  
Bacterial Community ◽  
Ammonium Nitrate ◽  
Community Composition ◽  
Bacterial Community Composition ◽  
N Cycling ◽  
Fungal Hyphae ◽  
Urea Ammonium Nitrate ◽  
C And N ◽  
Rhizosphere Bacterial Community ◽  
C And N Cycling

Abstract Global food wastage equates to about 1.3 billion tons per year, which causes serious environmental impacts. The objective of this study was to evaluate the influences of addition of digestate from food waste in comparison to a synthetic liquid urea ammonium nitrate solution on plant growth, rhizosphere bacterial community composition and diversity, and hyphal abundance of arbuscular mycorrhizal (AM) fungi. Plant and soil samples were collected at 25, 50, and 75 days after seedling emergence. Annual ryegrass growth was significantly increased by both liquid urea ammonium nitrate and digestate, and digestate was just as effective as liquid urea ammonium nitrate. Additionally, digestate (50 kg N ha−1) significantly increased AM fungal hyphae density. Liquid urea ammonium nitrate (50 kg N ha−1) significantly decreased AM fungal hyphae density compared with liquid urea ammonium nitrate (25 kg N ha−1) at DAE 75. Digestate and liquid urea ammonium nitrate applications significantly shifted the bacterial community composition and OTU richness and changed the abundance of microbial C and N-cycling genes, while application rates had no significant effect. Structural equation modeling showed that digestate and UAN addition both directly and indirectly affected bacterial, C and N cycling genes community composition; the indirect effects were related to increased soil NO3− content and reduced pH. This study showed that the use of digestate as a soil amendment can be environmentally effective and can provide a sustainable supply of nutrients that increases soil organic C. Moreover, the use of digestate can readily be incorporated into agricultural practices with potentially less impact on soil microflora diversity and function than conventional fertilizers.

scholarly journals Agricultural Management Affects the Active Rhizosphere Bacterial Community Composition and Nitrification

mSystems ◽  
2021 ◽  
Author(s):  
Guillaume Bay ◽  
Conard Lee ◽  
Chiliang Chen ◽  
Navreet K. Mahal ◽  
Michael J. Castellano ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Bacterial Community ◽  
Community Composition ◽  
Inorganic Nitrogen ◽  
Bacterial Community Composition ◽  
Agricultural Management ◽  
N Fertilizer ◽  
Low Diversity ◽  
Rhizosphere Bacterial Community

Crops in simplified, low-diversity agroecosystems assimilate only a fraction of the inorganic nitrogen (N) fertilizer inputs. Much of this N fertilizer is lost to the environment as N oxides, which degrade water quality and contribute to climate change and loss of biodiversity.

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