| Literature DB >> 27884782 |
Alice Checcucci1, Isabel Maida1, Giovanni Bacci1, Cristina Ninno1, Anna Rita Bilia2, Sauro Biffi3, Fabio Firenzuoli4, Guido Flamini5, Renato Fani1, Alessio Mengoni6.
Abstract
We examined whether the microbiota of two related aromatic thyme species, Thymus vulgaris and Thymus citriodorus, differs in relation to the composition of the respective essential oil (EO). A total of 576 bacterial isolates were obtained from three districts (leaves, roots and rhizospheric soil). They were taxonomically characterized and inspected for tolerance to the EO from the two thyme species. A district-related taxonomic pattern was found. In particular, high taxonomic diversity among the isolates from leaves was detected. Moreover, data obtained revealed a differential pattern of resistance of the isolates to EOs extracted from T. vulgaris and T. citriodorus, which was interpreted in terms of differing chemical composition of the EO of their respective host plants. In conclusion, we suggest that bacterial colonization of leaves in Thymus spp. is influenced by the EO present in leaf glandular tissue as one of the selective forces shaping endophytic community composition.Entities:
Keywords: Adaptation; Bacterial endophytes; Essential oil; Medicinal plants; Plant microbiota; Thymus
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Year: 2016 PMID： 27884782 DOI： 10.1016/j.resmic.2016.11.004
Source DB: PubMed Journal: Res Microbiol ISSN： 0923-2508 Impact factor: 3.992