Bacteria from native soil in combination with arbuscular mycorrhizal fungi augment wheat yield and biofortification

Yadav, Radheshyam; Ror, Pankaj; Rathore, Parikshita; Ramakrishna, Wusirika

doi:10.1016/j.plaphy.2020.02.039

Cited by 68 publications

(51 citation statements)

References 78 publications

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“…Regarding the strong increases of seed yields (from 11 to 52%), our findings showed slight reduction in Fe (−5 to −17%) and Zn (−1 to −14%) contents. In contrast, it has been recently demonstrated that biostimulants enhance Zn concentration and bioavailability in wheat grain (Wang et al, 2020;Yadav et al, 2020). Nevertheless, in our study, the amount of Fe and Zn exported was significantly higher for VNT4 at dose 3 than for the control group (data not shown), which might be due to better remobilization during monocarpic senescence.…”

Section: Grain Ionome and Phytate Concentrationscontrasting

confidence: 92%

Biostimulant Effects of Glutacetine® and Its Derived Formulations Mixed With N Fertilizer on Post-heading N Uptake and Remobilization, Seed Yield, and Grain Quality in Winter Wheat

Maignan

Bernay

Géliot³

et al. 2020

Front. Plant Sci.

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Section: Grain Ionome and Phytate Concentrationscontrasting

confidence: 92%

Biostimulant Effects of Glutacetine® and Its Derived Formulations Mixed With N Fertilizer on Post-heading N Uptake and Remobilization, Seed Yield, and Grain Quality in Winter Wheat

Maignan

Bernay

Géliot³

et al. 2020

Front. Plant Sci.

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“…and PR29 ( Pseudomonas chlororaphis ), with plant growth promoting attributes, reported previously by Yadav et al . (2020), were evaluated in field conditions. These PGPB isolates were earlier characterized for plant growth promoting attributes such as IAA production, phosphate solubilization and siderophore production (Genebank accession no.…”

Section: Methodsmentioning

confidence: 99%

“…2015; Yadav et al . 2020). They belong to the phyla, Proteobacteria, Firmicutes and Actinobacteria, where the most common genera include Azotobacter , Azospirillum , Arthrobacter , Bacillus , Burkholderia , Cellulomonas , Gluconacetobacter , Herbaspirillum , Micrococcus , Pseudomonas and Rhizobium (Verma and Suman 2018).…”

Section: Introductionmentioning

confidence: 99%

“…2016; Yadav et al . 2020). However, the wide application of beneficial microbes has not yet been integrated into common agricultural practices because of their unpredictable and inconsistent field performance, reduced population due to tough competition with resident microbes, poor shelf life and the lack of awareness by farmers, which is the most important factor (Timmusk et al .…”

Section: Introductionmentioning

confidence: 99%

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Bacillus subtilisCP4, isolated from native soil in combination with arbuscular mycorrhizal fungi promotes biofortification, yield and metabolite production in wheat under field conditions

Yadav

Ror

Rathore

et al. 2020

J. Appl. Microbiol.

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Aims The aim of this study was to identify the best combination of plant growth promoting bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) for biofortification and enhancing yield in wheat as well as improve soil health under field conditions. Another aim was to get insights into metabolite dynamics in plants treated with PGPB and AMF. Methods and Results Different combinations of PGPB and AMF that gave good results in greenhouse study were used in a field study. The combined application of Bacillus subtilis CP4 (native PGPB) and AMF gave the best results with a significant increase in biomass, macronutrient and micronutrient content in wheat grains and improvement in yield‐related parameters relative to the untreated control. PGPB and AMF treatment increased antioxidant enzymes and compounds and decreased the level of an oxidation marker. Metabolite profiling performed using Gas Chromatography–Mass Spectrometry (GC‐MS) showed significant upregulation of specific organic acids, amino acids, sugars and sugar alcohols in plants treated with CP4 and AMF. The altered pathways due to CP4 and AMF inoculation mainly belong to carbohydrate and amino acid metabolism. A positive correlation was observed between some organic acids, sugars and amino acids with wheat growth and yield parameters. The activities of soil enzymes increased significantly with the best results shown by native PGPB and AMF combination. Conclusions A native bacterial isolate Bacillus subtilis CP4 in combination with AMF showed exceptional ability for biofortification and yield enhancement under field conditions. The upregulation of a number of metabolites showed correlation plant growth promotion and nutrients. Significance and Impact of the Study The combined application of native B. subtilis CP4 and AMF could offer a more sustainable approach for the development of a biofertilizer to enhance wheat nutrient content and production and soil health thereby advancing agriculture.

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“…For example, sequential inoculation of nitrogen fixing bacterium Azotobacter vinelandii, followed by plant growth-promoting root-endophytic fungus Serendipita indica demonstrated better growth in rice (Dabral et al, 2020). Dual inoculation of S. indica and Mycolicibacterium strains boosted the beneficial effects in tomato (del Barrio-Duque et al, 2019) and that of arbuscular mycorrhizal fungus with plant growthpromoting bacteria Bacillus subtilis demonstrated better growth in wheat (Yadav et al, 2020) as compared to the singly inoculated plants. There also are numerous other reports that showed two strains used in a consortium promoted plant growth in a more effective manner (Nadeem et al, 2013;Fatnassi et al, 2015;Priyadharsini and Muthukumar, 2016).…”

Section: Microbes For Plant Growth Promotion: a Reductionist Approachmentioning

confidence: 99%

Microbe to Microbiome: A Paradigm Shift in the Application of Microorganisms for Sustainable Agriculture

et al. 2020

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Light, water and healthy soil are three essential natural resources required for agricultural productivity. Industrialization of agriculture has resulted in intensification of cropping practices using enormous amounts of chemical pesticides and fertilizers that damage these natural resources. Therefore, there is a need to embrace agriculture practices that do not depend on greater use of fertilizers and water to meet the growing demand of global food requirements. Plants and soil harbor millions of microorganisms, which collectively form a microbial community known as the microbiome. An effective microbiome can offer benefits to its host, including plant growth promotion, nutrient use efficiency, and control of pests and phytopathogens. Therefore, there is an immediate need to bring functional potential of plant-associated microbiome and its innovation into crop production. In addition to that, new scientific methodologies that can track the nutrient flux through the plant, its resident microbiome and surrounding soil, will offer new opportunities for the design of more efficient microbial consortia design. It is now increasingly acknowledged that the diversity of a microbial inoculum is as important as its plant growth promoting ability. Not surprisingly, outcomes from such plant and soil microbiome studies have resulted in a paradigm shift away from single, specific soil microbes to a more holistic microbiome approach for enhancing crop productivity and the restoration of soil health. Herein, we have reviewed this paradigm shift and discussed various aspects of benign microbiome-based approaches for sustainable agriculture.

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Bacteria from native soil in combination with arbuscular mycorrhizal fungi augment wheat yield and biofortification

Cited by 68 publications

References 78 publications

Biostimulant Effects of Glutacetine® and Its Derived Formulations Mixed With N Fertilizer on Post-heading N Uptake and Remobilization, Seed Yield, and Grain Quality in Winter Wheat

Biostimulant Effects of Glutacetine® and Its Derived Formulations Mixed With N Fertilizer on Post-heading N Uptake and Remobilization, Seed Yield, and Grain Quality in Winter Wheat

Bacillus subtilisCP4, isolated from native soil in combination with arbuscular mycorrhizal fungi promotes biofortification, yield and metabolite production in wheat under field conditions

Microbe to Microbiome: A Paradigm Shift in the Application of Microorganisms for Sustainable Agriculture

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