ArticleBMC plant biology2015
Influence of rhizobacterial volatiles on the root system architecture and the production and allocation of biomass in the model grass Brachypodium distachyon (L.) P. Beauv.
Article in BMC plant biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Contrasting Effects of Grass-Derived Endophytic Fungal VOCs on Early Growth of Spring Barley and Red Clover: From Stimulation to Suppression.Microorganisms · 2026Article
- Revealing the Complex Interplay of Biostimulant Applications.Plants (Basel, Switzerland) · 2024Article
- History of a model plant growth-promoting rhizobacterium,Frontiers in plant science · 2023Review
- From Soil Amendments to Controlling Autophagy: Supporting Plant Metabolism under Conditions of Water Shortage and Salinity.Plants (Basel, Switzerland) · 2022Review
- Bacterial volatile organic compounds (VOCs) promote growth and induce metabolic changes in rice.Frontiers in plant science · 2022Article
- Efforts towards overcoming drought stress in crops: Revisiting the mechanisms employed by plant growth-promoting bacteria.Frontiers in microbiology · 2022Review
- Developmental plasticity ofPlant direct · 2021Article
- The nature of the interaction Azospirillum-Arabidopsis determine the molecular and morphological changes in root and plant growth promotion.Protoplasma · 2021Article
- Article
- Potential of Salt Tolerant PGPR in Growth and Yield Augmentation of Wheat (Frontiers in microbiology · 2020Article
- Nutritional value of Sesamum indicum L. was improved by Azospirillum and Azotobacter under low input of NP fertilizers.BMC plant biology · 2019Article
- Plantibacter flavus, Curtobacterium herbarum, Paenibacillus taichungensis, and Rhizobium selenitireducens Endophytes Provide Host-Specific Growth Promotion of Arabidopsis thaliana, Basil, Lettuce, and Bok Choy Plants.Applied and environmental microbiology · 2019Article
- Exploiting rhizosphere microbial cooperation for developing sustainable agriculture strategies.Environmental science and pollution research international · 2018Review
- Review
- Plant Growth-Promoting Rhizobacteria: Context, Mechanisms of Action, and Roadmap to Commercialization of Biostimulants for Sustainable Agriculture.Frontiers in plant science · 2018Review
- archiDART v3.0: A new data analysis pipeline allowing the topological analysis of plant root systems.F1000Research · 2018Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPlant growth-promoting rhizobacteria are increasingly being seen as a way of complementing conventional inputs in agricultural systems. The effects on their host plants are diverse and include volatile-mediated growth enhancement. This study sought to assess the effects of bacterial volatiles on the biomass production and root system architecture of the model grass Brachypodium distachyon (L.) Beauv.
resultsAn in vitro experiment allowing plant-bacteria interaction throughout the gaseous phase without any physical contact was used to screen 19 bacterial strains for their growth-promotion ability over a 10-day co-cultivation period. Five groups of bacteria were defined and characterised based on their combined influence on biomass production and root system architecture. The observed effects ranged from unchanged to greatly increased biomass production coupled with increased root length and branching. Primary root length was increased only by the volatile compounds emitted by Enterobacter cloacae JM22 and Bacillus pumilus T4. Overall, the most significant results were obtained with Bacillus subtilis GB03, which induced an 81 % increase in total biomass, as well as enhancing total root length, total secondary root length and total adventitious root length by 88.5, 201.5 and 474.5 %, respectively.
conclusionsThis study is the first report on bacterial volatile-mediated growth promotion of a grass plant. Contrasting modulations of biomass production coupled with changes in root system architecture were observed. Most of the strains that increased total plant biomass also modulated adventitious root growth. Under our screening conditions, total biomass production was strongly correlated with the length and branching of the root system components, except for primary root length. An analysis of the emission kinetics of the bacterial volatile compounds is being undertaken and should lead to the identification of the compounds responsible for the observed growth-promotion effects. Within the context of the inherent characteristics of our in vitro system, this paper identifies the next critical experimental steps and discusses them from both a fundamental and an applied perspective.
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