The Date Palm Tree Rhizosphere Is a Niche for Plant Growth Promoting Bacteria in the Oasis Ecosystem

Handle URI:
http://hdl.handle.net/10754/348499
Title:
The Date Palm Tree Rhizosphere Is a Niche for Plant Growth Promoting Bacteria in the Oasis Ecosystem
Authors:
Ferjani, Raoudha ( 0000-0001-7439-9294 ) ; Marasco, Ramona ( 0000-0003-1769-9981 ) ; Rolli, Eleonora ( 0000-0002-7461-7949 ) ; Cherif, Hanene ( 0000-0002-7123-8273 ) ; Cherif, Ameur ( 0000-0001-7310-3842 ) ; Gtari, Maher; Boudabous, Abdellatif; Daffonchio, Daniele ( 0000-0003-0947-925X ) ; Ouzari, Hadda-Imene
Abstract:
In arid ecosystems environmental factors such as geoclimatic conditions and agricultural practices are of major importance in shaping the diversity and functionality of plant-associated bacterial communities. Assessing the influence of such factors is a key to understand (i) the driving forces determining the shape of root-associated bacterial communities and (ii) the plant growth promoting (PGP) services they provide. Desert oasis environment was chosen as model ecosystem where agriculture is possible by the microclimate determined by the date palm cultivation. The bacterial communities in the soil fractions associated with the root system of date palms cultivated in seven oases in Tunisia were assessed by culture-independent and dependent approaches. According to 16S rRNA gene PCR-DGGE fingerprinting, the shapes of the date palm rhizosphere bacterial communities correlate with geoclimatic features along a north-south aridity transect. Despite the fact that the date palm root bacterial community structure was strongly influenced by macroecological factors, the potential rhizosphere services reflected in the PGP traits of isolates screened in vitro were conserved among the different oases. Such services were exerted by the 83% of the screened isolates. The comparable numbers and types of PGP traits indicate their importance in maintaining the plant functional homeostasis despite the different environmental selection pressures.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
The Date Palm Tree Rhizosphere Is a Niche for Plant Growth Promoting Bacteria in the Oasis Ecosystem 2015, 2015:1 BioMed Research International
Publisher:
Hindawi Publishing Corporation
Journal:
BioMed Research International
Issue Date:
Apr-2015
DOI:
10.1155/2015/153851
PubMed ID:
25866759
PubMed Central ID:
PMC4383278
Type:
Article
ISSN:
2314-6133; 2314-6141
Additional Links:
http://www.hindawi.com/journals/bmri/2015/153851/
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorFerjani, Raoudhaen
dc.contributor.authorMarasco, Ramonaen
dc.contributor.authorRolli, Eleonoraen
dc.contributor.authorCherif, Haneneen
dc.contributor.authorCherif, Ameuren
dc.contributor.authorGtari, Maheren
dc.contributor.authorBoudabous, Abdellatifen
dc.contributor.authorDaffonchio, Danieleen
dc.contributor.authorOuzari, Hadda-Imeneen
dc.date.accessioned2015-04-05T07:49:48Zen
dc.date.available2015-04-05T07:49:48Zen
dc.date.issued2015-04en
dc.identifier.citationThe Date Palm Tree Rhizosphere Is a Niche for Plant Growth Promoting Bacteria in the Oasis Ecosystem 2015, 2015:1 BioMed Research Internationalen
dc.identifier.issn2314-6133en
dc.identifier.issn2314-6141en
dc.identifier.pmid25866759en
dc.identifier.doi10.1155/2015/153851en
dc.identifier.urihttp://hdl.handle.net/10754/348499en
dc.description.abstractIn arid ecosystems environmental factors such as geoclimatic conditions and agricultural practices are of major importance in shaping the diversity and functionality of plant-associated bacterial communities. Assessing the influence of such factors is a key to understand (i) the driving forces determining the shape of root-associated bacterial communities and (ii) the plant growth promoting (PGP) services they provide. Desert oasis environment was chosen as model ecosystem where agriculture is possible by the microclimate determined by the date palm cultivation. The bacterial communities in the soil fractions associated with the root system of date palms cultivated in seven oases in Tunisia were assessed by culture-independent and dependent approaches. According to 16S rRNA gene PCR-DGGE fingerprinting, the shapes of the date palm rhizosphere bacterial communities correlate with geoclimatic features along a north-south aridity transect. Despite the fact that the date palm root bacterial community structure was strongly influenced by macroecological factors, the potential rhizosphere services reflected in the PGP traits of isolates screened in vitro were conserved among the different oases. Such services were exerted by the 83% of the screened isolates. The comparable numbers and types of PGP traits indicate their importance in maintaining the plant functional homeostasis despite the different environmental selection pressures.en
dc.publisherHindawi Publishing Corporationen
dc.relation.urlhttp://www.hindawi.com/journals/bmri/2015/153851/en
dc.rightsThis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/3.0/en
dc.titleThe Date Palm Tree Rhizosphere Is a Niche for Plant Growth Promoting Bacteria in the Oasis Ecosystemen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalBioMed Research Internationalen
dc.identifier.pmcidPMC4383278en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionLR03ES03 Laboratoire Microorganismes et Biomolécules Actives, Faculté des Sciences de Tunis, Université de Tunis El Manar, Campus Universitaire, 2092 Tunis, Tunisiaen
dc.contributor.institutionDepartment of Food, Environment, and Nutritional Sciences, University of Milan, Via Celoria 2, 20133 Milan, Italyen
dc.contributor.institutionUniversité de La Manouba, Institut Supérieur de Biotechnologie de Sidi Thabet, LR11ES31 LR Biotechnologie & Valorisation des Bio-Géo Ressources, BiotechPole Sidi Thabet, 2020 Ariana, Tunisiaen
kaust.authorMarasco, Ramonaen
kaust.authorDaffonchio, Danieleen

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