KerSeguinDriscollEtAl2014

Référence

Ker, K., Seguin, P., Driscoll, B.T., Fyles, J.W. and Smith, D.L. (2014) Switchgrass establishment and seeding year production can be improved by inoculation with rhizosphere endophytes. Biomass and Bioenergy, 47:295-301. (Scopus )

Résumé

Nitrogen-fixing bacteria (NFB) and other plant growth promoting rhizobacteria (PGPR) have been used to increase growth and yield of corn and sugarcane, two graminaceous crops utilized as bioenergy feedstocks. Switchgrass (SG, Panicum virgatum L.), a native perennial grass of North America, is also a desirable bioenergy crop because it can be grown on marginal lands and thus does not necessarily displace food production. Yet no investigations have been conducted on the use of NFB and/or PGPR as inoculants to increase SG growth and productivity. Studies reporting high biomass yields from SG with minimal to no fertilizer nitrogen (N) input prompted us to hypothesize that SG is obtaining part of its N from an alternative source, perhaps through biological nitrogen fixation from root/rhizome associated PGPR. We isolated bacteria from SG rhizomes that had not received fertilizer N input for over ten years and which increased plant growth in the absence of the fertilizer N under growth chamber conditions. The bacteria were identified as a strain of Paenibacillus polymyxa, a N2-fixing bacterium, and several other PGPR capable of solubilizing phosphate and/or producing auxins. Our objective was to test this PGPR inoculum under field conditions with low-N inputs. Here, we present the findings regarding SG productivity in the establishment year. Switchgrass seeds inoculated with the PGPR culture had greater tiller density, and taller tillers resulting in 40% higher yield than uninoculated plants. PGPR have the potential to be effectively utilized as inoculants to enhance SG yields in a low-N input production system. © 2012 Elsevier Ltd.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { KerSeguinDriscollEtAl2014,
    AUTHOR = { Ker, K. and Seguin, P. and Driscoll, B.T. and Fyles, J.W. and Smith, D.L. },
    TITLE = { Switchgrass establishment and seeding year production can be improved by inoculation with rhizosphere endophytes },
    JOURNAL = { Biomass and Bioenergy },
    YEAR = { 2014 },
    VOLUME = { 47 },
    PAGES = { 295-301 },
    NOTE = { cited By 13 },
    ABSTRACT = { Nitrogen-fixing bacteria (NFB) and other plant growth promoting rhizobacteria (PGPR) have been used to increase growth and yield of corn and sugarcane, two graminaceous crops utilized as bioenergy feedstocks. Switchgrass (SG, Panicum virgatum L.), a native perennial grass of North America, is also a desirable bioenergy crop because it can be grown on marginal lands and thus does not necessarily displace food production. Yet no investigations have been conducted on the use of NFB and/or PGPR as inoculants to increase SG growth and productivity. Studies reporting high biomass yields from SG with minimal to no fertilizer nitrogen (N) input prompted us to hypothesize that SG is obtaining part of its N from an alternative source, perhaps through biological nitrogen fixation from root/rhizome associated PGPR. We isolated bacteria from SG rhizomes that had not received fertilizer N input for over ten years and which increased plant growth in the absence of the fertilizer N under growth chamber conditions. The bacteria were identified as a strain of Paenibacillus polymyxa, a N2-fixing bacterium, and several other PGPR capable of solubilizing phosphate and/or producing auxins. Our objective was to test this PGPR inoculum under field conditions with low-N inputs. Here, we present the findings regarding SG productivity in the establishment year. Switchgrass seeds inoculated with the PGPR culture had greater tiller density, and taller tillers resulting in 40% higher yield than uninoculated plants. PGPR have the potential to be effectively utilized as inoculants to enhance SG yields in a low-N input production system. © 2012 Elsevier Ltd. },
    AUTHOR_KEYWORDS = { Biofuel; Biological N2-fixation; Establishment year; PGPR; Plant-microbe associations; Switchgrass },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1016/j.biombioe.2012.09.031 },
    KEYWORDS = { Bacteria; Biofuels; Biomass; Crops; Nitrogen; Nitrogen fertilizers; Plants (botany); Productivity; Seed; Soils, Alternative source; Biological nitrogen fixations; Establishment year; Nitrogen fixing bacteria; Paenibacillus polymyxa; PGPR; Plant growth promoting rhizobacteria; Switchgrass, Nitrogen fixation; Biofuels, biomass; endophyte; environmental response; grass; growth response; inoculation; microbial activity; nitrogen fixation; perennial plant; rhizosphere; seedling; alternative energy; biofuel; crop plant; energy crop; fertilizer application; growth rate; interspecific interaction; rhizobacterium, North America, Panicum virgatum },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84870682919&partnerID=40&md5=edf4a6df10358ade68ff186ab11f3cb6 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

Ecole d'été en Biologie et Ecologie intégratives 
6-12 juillet 2019, Pyrénées françaises
École d'été en modélisation de la biodiversité 
19-23 août 2019, Orford
Cours aux cycles supérieurs: Aménagement des écosystèmes forestiers 
19-30 août 2019, Station FERLD

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...