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

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

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. / Delaplace, Pierre; Delory, Benjamin M; Baudson, Caroline et al.
In: BMC Plant Biology, Vol. 15, No. 1, 195, 12.08.2015.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

APA

Vancouver

Delaplace P, Delory BM, Baudson C, Mendaluk-Saunier de Cazenave M, Spaepen S, Varin S et al. 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. BMC Plant Biology. 2015 Aug 12;15(1):195. doi: 10.1186/s12870-015-0585-3

Bibtex

@article{cd986c680e60437c87b66a3370f3312f,
title = "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",
abstract = "BACKGROUND: Plant 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.RESULTS: An 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.CONCLUSIONS: This 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.",
keywords = "Biology, Chemistry, Ecosystems Research, Sustainability Science",
author = "Pierre Delaplace and Delory, {Benjamin M} and Caroline Baudson and {Mendaluk-Saunier de Cazenave}, Magdalena and Stijn Spaepen and S{\'e}bastien Varin and Yves Brostaux and {du Jardin}, Patrick",
note = "Funding Information: The authors thank Paul Par{\'e} (Texas Tech University, Lubbock, TX, USA), Richard Sibout (Institut National de la Recherche Agronomique, Versailles, France) and Micheline Vandenbol and Marc Ongena (Gembloux Agro-Bio Tech, Gembloux, Belgium) for their fruitful discussions. The authors also thank Adeline Blondiaux for her excellent technical assistance in setting up the in vitro co-cultivation system and producing the analysed dataset. We also thank Gerry Cambier for editing the English composition of the article. This work was financially supported by the Belgian Fonds de la Recherche Scientifique - FNRS (FRFC project 2.4.591.10.F and post-doctoral grant CTP 1808458). Delory B.M. (Research Fellow) is financially supported by the Belgian National Fund for Scientific Research (F.R.S.-FNRS). Publisher Copyright: {\textcopyright} 2015 Delaplace et al.",
year = "2015",
month = aug,
day = "12",
doi = "10.1186/s12870-015-0585-3",
language = "English",
volume = "15",
journal = "BMC Plant Biology",
issn = "1471-2229",
publisher = "BioMed Central Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - 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

AU - Delaplace, Pierre

AU - Delory, Benjamin M

AU - Baudson, Caroline

AU - Mendaluk-Saunier de Cazenave, Magdalena

AU - Spaepen, Stijn

AU - Varin, Sébastien

AU - Brostaux, Yves

AU - du Jardin, Patrick

N1 - Funding Information: The authors thank Paul Paré (Texas Tech University, Lubbock, TX, USA), Richard Sibout (Institut National de la Recherche Agronomique, Versailles, France) and Micheline Vandenbol and Marc Ongena (Gembloux Agro-Bio Tech, Gembloux, Belgium) for their fruitful discussions. The authors also thank Adeline Blondiaux for her excellent technical assistance in setting up the in vitro co-cultivation system and producing the analysed dataset. We also thank Gerry Cambier for editing the English composition of the article. This work was financially supported by the Belgian Fonds de la Recherche Scientifique - FNRS (FRFC project 2.4.591.10.F and post-doctoral grant CTP 1808458). Delory B.M. (Research Fellow) is financially supported by the Belgian National Fund for Scientific Research (F.R.S.-FNRS). Publisher Copyright: © 2015 Delaplace et al.

PY - 2015/8/12

Y1 - 2015/8/12

N2 - BACKGROUND: Plant 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.RESULTS: An 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.CONCLUSIONS: This 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.

AB - BACKGROUND: Plant 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.RESULTS: An 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.CONCLUSIONS: This 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.

KW - Biology

KW - Chemistry

KW - Ecosystems Research

KW - Sustainability Science

UR - http://www.scopus.com/inward/record.url?scp=84938838585&partnerID=8YFLogxK

U2 - 10.1186/s12870-015-0585-3

DO - 10.1186/s12870-015-0585-3

M3 - Journal articles

C2 - 26264238

VL - 15

JO - BMC Plant Biology

JF - BMC Plant Biology

SN - 1471-2229

IS - 1

M1 - 195

ER -

Documents

DOI

Recently viewed

Publications

  1. Managing and accounting for corporate biodiversity contributions mapping the field
  2. Contributing to sustainable development pathways in the South Pacific through transdisciplinary research
  3. Crop rotation modelling
  4. Formative Assessment in Mathematics Instruction
  5. Foundations for the Development of Simulator-based Training for Older Professional Drivers
  6. RIGID PRICES AS A RESULT FROM PROFIT MAXIMIZATION
  7. Experimental Investigation of Efficiency and Deposit Process Temperature During Multi-Layer Friction Surfacing
  8. Performance of the Chemcatcher ® passive sampler when used to monitor 10 polar and semi-polar pesticides in 16 Central European streams, and comparison with two other sampling methods
  9. University mathematics students’ use of resources: strategies, purposes, and consequences
  10. Vocational identity as a mediator of the relationship between core self-evaluations and life and job satisfaction
  11. A field experimental study of analytical problem solving competence-Investigating effects of training and transfer
  12. SMARTPHONE APPS FOR TINNITUS: A REVIEW ON INTERVENTION COMPONENTS AND BEHAVIOR CHANGE TECHNIQUES USED IN TINNITUS APPS
  13. Requests for reasoning in geometrical textbook tasks for primary-level students
  14. Two-way NxP fertilisation experiment on barley (Hordeum vulgare) reveals shift from additive to synergistic N-P interactions at critical phosphorus fertilisation level
  15. Networking
  16. Economic Values from Ecosystems
  17. Microstructure and mechanical characterization of cast Mg-Ca-Si alloys
  18. Solvable problems or problematic solvability?
  19. Teaching pragmatic competence with corpora: Intensification in expressions of gratitude across varieties
  20. Investigation of minimum creep rates and stress exponents calculated from tensile and compressive creep data of magnesium alloy AE42
  21. Integrierte Eingabegeräte
  22. Model-based estimation of pesticides and transformation products and their export pathways in a headwater catchment
  23. Phantasmal Spaces