ISSN 2285-1364, ISSN CD-ROM 2285-5521, ISSN ONLINE 2285-1372, ISSN-L 2285-1364


Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XXVI, Issue 2
Written by Ion-Mihai GIURESCU, Călina Petruța CORNEA, Florin OANCEA

This paper reviews the present knowledge regarding the stimulation of the microbial symbioses of the sea buckthorn (Elaeagnus rhamnoides syn. Hippophae rhamnoides). Sea buckthorn is an actinorhizal plant, developing nitrogen-fixing symbioses with the actinobacteria from the Frankia genus. At the same time, sea buckthorn roots can form endomycorrhizal symbioses with various arbuscular mycorrhizal (AM) fungi. AM symbiosis increases nutrient uptake and nutrient use efficiency, especially on phosphorus and micro-elements. Due to these microbial symbioses, sea buckthorn is an efficient colonizer of marginal lands and a suitable crop for low-inputs organic/ecological farming. Helper bacterial strains were demonstrated to promote microbial symbiosis between Frankia actinobacteria or AM fungi with roots of other host plants. Only scarce and indirect information suggests the involvement of gram-positive, endospore-forming bacteria as a helper of microbial symbiosis for sea buckthorn. Also, there is no information regarding the role of rhizosphere signals in promoting the sea buckthorn microbial symbioses. The finding of this paper highlights the need for future works focused on the stimulation of sea buckthorn symbioses.

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