Salicornia strobilacea (synonym of Halocnemum strobilaceum) Grown Under Different Tidal Regimes Selects Rhizosphere Bacteria Capable of Promoting Plant Growth

Handle URI:
http://hdl.handle.net/10754/618522
Title:
Salicornia strobilacea (synonym of Halocnemum strobilaceum) Grown Under Different Tidal Regimes Selects Rhizosphere Bacteria Capable of Promoting Plant Growth
Authors:
Marasco, Ramona ( 0000-0003-4776-7519 ) ; Mapelli, Francesca ( 0000-0002-2928-6538 ) ; Rolli, Eleonora ( 0000-0002-7461-7949 ) ; Mosqueira Santillán, María José ( 0000-0002-4844-583X ) ; Fusi, Marco ( 0000-0001-7433-2487 ) ; Bariselli, Paola; Reddy, Muppala P.; Cherif, Ameur ( 0000-0001-7310-3842 ) ; Tsiamis, George; Borin, Sara ( 0000-0001-7479-8199 ) ; Daffonchio, Daniele ( 0000-0003-0947-925X )
Abstract:
Halophytes classified under the common name of salicornia colonize salty and coastal environments across tidal inundation gradients. To unravel the role of tide-related regimes on the structure and functionality of root associated bacteria, the rhizospheric soil of Salicornia strobilacea (synonym of Halocnemum strobilaceum) plants was studied in a tidal zone of the coastline of Southern Tunisia. Although total counts of cultivable bacteria did not change in the rhizosphere of plants grown along a tidal gradient, significant differences were observed in the diversity of both the cultivable and uncultivable bacterial communities. This observation indicates that the tidal regime is contributing to the bacterial species selection in the rhizosphere. Despite the observed diversity in the bacterial community structure, the PGP potential of cultivable rhizospheric bacteria, assessed through in vitro and in vivo tests, was equally distributed along the tidal gradient. Root colonization tests with selected strains proved that halophyte rhizospheric bacteria (i) stably colonize S. strobilacea rhizoplane and the plant shoot suggesting that they move from the root to the shoot and (ii) are capable of improving plant growth. The versatility in the root colonization, the overall PGP traits and the in vivo plant growth promotion under saline condition suggest that such beneficial activities likely take place naturally under a range of tidal regimes.
KAUST Department:
Biological and Environmental Sciences & Engineering Division (BESE); Greenhouse Laboratory
Citation:
Marasco R, Mapelli F, Rolli E, Mosqueira Santillan MJ, Fusi M, Bariselli P, Reddy M, Cherif A, Tsiamis G, Borin S and Daffonchio D (2016). Salicornia strobilacea (synonym of Halocnemum strobilaceum) Grown Under Different Tidal Regimes Selects Rhizosphere Bacteria Capable of Promoting Plant Growth. Front. Microbiol. 7:1286. doi: 10.3389/fmicb.2016.01286
Journal:
Frontiers in Microbiology
Issue Date:
Apr-2016
Type:
Article
Sponsors:
This Document is Protected by copyright and was first published by Frontiers. All rights reserved. it is reproduced with permission.
Additional Links:
http://journal.frontiersin.org/article/10.3389/fmicb.2016.01286/full
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DC FieldValue Language
dc.contributor.authorMarasco, Ramonaen
dc.contributor.authorMapelli, Francescaen
dc.contributor.authorRolli, Eleonoraen
dc.contributor.authorMosqueira Santillán, María Joséen
dc.contributor.authorFusi, Marcoen
dc.contributor.authorBariselli, Paolaen
dc.contributor.authorReddy, Muppala P.en
dc.contributor.authorCherif, Ameuren
dc.contributor.authorTsiamis, Georgeen
dc.contributor.authorBorin, Saraen
dc.contributor.authorDaffonchio, Danieleen
dc.date.accessioned2016-08-18T10:07:32Z-
dc.date.available2016-08-18T10:07:32Z-
dc.date.issued2016-04-
dc.identifier.citationMarasco R, Mapelli F, Rolli E, Mosqueira Santillan MJ, Fusi M, Bariselli P, Reddy M, Cherif A, Tsiamis G, Borin S and Daffonchio D (2016). Salicornia strobilacea (synonym of Halocnemum strobilaceum) Grown Under Different Tidal Regimes Selects Rhizosphere Bacteria Capable of Promoting Plant Growth. Front. Microbiol. 7:1286. doi: 10.3389/fmicb.2016.01286en
dc.identifier.urihttp://hdl.handle.net/10754/618522-
dc.description.abstractHalophytes classified under the common name of salicornia colonize salty and coastal environments across tidal inundation gradients. To unravel the role of tide-related regimes on the structure and functionality of root associated bacteria, the rhizospheric soil of Salicornia strobilacea (synonym of Halocnemum strobilaceum) plants was studied in a tidal zone of the coastline of Southern Tunisia. Although total counts of cultivable bacteria did not change in the rhizosphere of plants grown along a tidal gradient, significant differences were observed in the diversity of both the cultivable and uncultivable bacterial communities. This observation indicates that the tidal regime is contributing to the bacterial species selection in the rhizosphere. Despite the observed diversity in the bacterial community structure, the PGP potential of cultivable rhizospheric bacteria, assessed through in vitro and in vivo tests, was equally distributed along the tidal gradient. Root colonization tests with selected strains proved that halophyte rhizospheric bacteria (i) stably colonize S. strobilacea rhizoplane and the plant shoot suggesting that they move from the root to the shoot and (ii) are capable of improving plant growth. The versatility in the root colonization, the overall PGP traits and the in vivo plant growth promotion under saline condition suggest that such beneficial activities likely take place naturally under a range of tidal regimes.en
dc.description.sponsorshipThis Document is Protected by copyright and was first published by Frontiers. All rights reserved. it is reproduced with permission.en
dc.language.isoenen
dc.relation.urlhttp://journal.frontiersin.org/article/10.3389/fmicb.2016.01286/fullen
dc.subjectplant growth promoting bacteriaen
dc.subjectbacterial diversityen
dc.subjectSalicorniaen
dc.subjectTidal regimeen
dc.subjectCoastal environmentsen
dc.subjectHalopthyteen
dc.subjectSalt systemsen
dc.titleSalicornia strobilacea (synonym of Halocnemum strobilaceum) Grown Under Different Tidal Regimes Selects Rhizosphere Bacteria Capable of Promoting Plant Growthen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences & Engineering Division (BESE)en
dc.contributor.departmentGreenhouse Laboratoryen
dc.identifier.journalFrontiers in Microbiologyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Food, Environmental and Nutritional Sciences, University of Milan, Italyen
dc.contributor.institutionUniversity of Manouba, Tunisiaen
dc.contributor.institutionDepartment of Environmental and Natural Resources Management, University of Patras, Greeceen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
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