Metabolic potential and community structure of endophytic and rhizosphere bacteria associated with the roots of the halophyte Aster tripolium L.
作者： Sonia Szymańska , Tomasz Płociniczak , Zofia Piotrowska-Seget , Michał Złoch , Silke Ruppel
DOI: 10.1016/J.MICRES.2015.09.007
关键词:
摘要: The submitted work assumes that the abundance and diversity of endophytic rhizosphere microorganisms co-existing with halophytic plant Aster tripolium L. growing in a salty meadow vicinity soda factory (central Poland) represent unique populations cultivable bacterial strains. Endophytic bacteria were (i) isolated identified based on 16S rDNA sequences; (ii) screened for nifH acdS genes; (iii) analyzed selected metabolic properties. Moreover, total microbial biomass community structures roots (endophytes), soil evaluated using cultivation-independent technique (PLFA) to characterize plant-microbial interactions under natural salt conditions. identification strains showed domination by Gram-positive (mostly Bacillus spp.) both (90.9%) (72.7%) A. tripolium. Rhizosphere exhibited broader capacities, while endophytes higher specificities activity. PLFA analysis decreased following order (rhizosphere
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