Publication
Impact of a natural soil salinity gradient on fungal endophytes in wild barley (Hordeum maritimum With.)
| dc.contributor.author | Hammami, Haifa | |
| dc.contributor.author | Baptista, Paula | |
| dc.contributor.author | Martins, Fátima | |
| dc.contributor.author | Gomes, Teresa | |
| dc.contributor.author | Abdelly, Chedly | |
| dc.contributor.author | Mahmoud, Ouissal Metoui Ben | |
| dc.date.accessioned | 2018-01-31T10:00:00Z | |
| dc.date.accessioned | 2018-01-31T15:40:35Z | |
| dc.date.available | 2018-01-31T10:00:00Z | |
| dc.date.available | 2018-01-31T15:40:35Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | Occurrence and distribution pattern of fungal endophytes in different tissues of halophytic plants across saline depressions are poorly studied. We investigated the endophytic fungal communities inhabiting roots, stems and leaves of Hordeum maritimum collected in a soil salinity gradient, i.e. non-saline, slightly saline and saline, using a culture-dependent approach. A total of 20 taxa belonging to Ascomycota phylum were identified by ITS rRNA gene sequence. Pyronema domesticum and Alternaria spp. were the most frequently isolated. Roots host higher diversity and were more frequently colonized by endophytes than aboveground organs. Endophytic composition of all organs surveyed differed according to salinity gradient. Contrary to expectations, the colonization rate of roots increased with soil salinity, indicating that under salt stress the endophyte-plant association is promoted. All the isolates exhibited in vitro saline tolerance, especially those belonging to genera Xylaria, Chalastospora, Alternaria and Pyronema. Fungal tolerance to NaCl under in vitro conditions appears to be more dependent on the isolates than on the sites of their isolation, suggesting that under natural conditions other factors, beyond soil salinity, should be taken into account. These findings highlight the importance of fungal endophytes in the protection and/or adaptation of both interacting species (plant-fungus) to salt stress under natural conditions. Graphical Abstract: [Figure not available: see fulltext.] | en_EN |
| dc.description.sponsorship | This work is funded by the Foundation for Science and Technology–FCT–in the scope of the Transnational Cooperation Portugal–Tunisia project n8 6818 and partially by FEDER through the Operational Competitiveness Program–COMPETE–and by national funds through FCT–in the scope of the project PTDC/ AGR-PRO/4354/2012. | |
| dc.description.version | info:eu-repo/semantics/publishedVersion | en_EN |
| dc.identifier.citation | Hammami, Haifa; Baptista, Paula; Martins, Fátima; Gomes, Teresa; Abdelly, Chedly; Mahmoud, Ouissal Metoui Ben (2016). Impact of a natural soil salinity gradient on fungal endophytes in wild barley (Hordeum maritimum With.). World Journal of Microbiology and Biotechnology. ISSN 0959-3993. 32, p. 184-194 | en_EN |
| dc.identifier.doi | 10.1007/s11274-016-2142-0 | en_EN |
| dc.identifier.issn | 0959-3993 | |
| dc.identifier.uri | http://hdl.handle.net/10198/15365 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | en_EN |
| dc.relation | Prevention and Restoration Actions to Combat Desertification. An Integrated Assessment. | |
| dc.subject | Endophytic communities | en_EN |
| dc.subject | Halophytes | en_EN |
| dc.subject | Saline depression | en_EN |
| dc.subject | Similarity | en_EN |
| dc.subject | Tolerance index | en_EN |
| dc.title | Impact of a natural soil salinity gradient on fungal endophytes in wild barley (Hordeum maritimum With.) | en_EN |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Prevention and Restoration Actions to Combat Desertification. An Integrated Assessment. | |
| oaire.awardURI | info:eu-repo/grantAgreement/EC/FP7/226818/EU | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-PRO%2F4354%2F2012/PT | |
| oaire.fundingStream | FP7 | |
| oaire.fundingStream | 5876-PPCDTI | |
| person.familyName | Baptista | |
| person.givenName | Paula | |
| person.identifier.ciencia-id | 7D11-FE1E-CD0F | |
| person.identifier.orcid | 0000-0001-6331-3731 | |
| person.identifier.scopus-author-id | 14051688000 | |
| project.funder.identifier | http://doi.org/10.13039/501100008530 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | European Commission | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | en_EN |
| rcaap.type | article | en_EN |
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