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Streptomyces lividans inhibits the proliferation of the fungus Verticillium dahliae on seeds and roots of Arabidopsis thaliana.

Meschke H, Schrempf H - Microb Biotechnol (2010)

Bottom Line: The extension of hyphae from each individual strain correlates with the reduction of the pectin-containing mucilage-layer.As a result, plants have considerably reduced disease symptoms.As spores of the beneficial S. lividans strain are obtainable in large quantity, its application is highly attractive.

View Article: PubMed Central - PubMed

Affiliation: FB Biology/Chemistry, Applied Genetics of Microorganisms, University of Osnabrück, Barbarastr. 13, 49069 Osnabrück, Germany.

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Mentions: Individual seeds of A. thaliana were incubated on agar plates together with S. lividans, for various time‐intervals up to 21 days. Hyphae proliferated extensively within the seed mucilage over the course of 70 h (Fig. 5A, control). The roots of emerging seedlings carried hyphae preferentially at their tip (14 days, Fig. 5B). After further incubation (21 days), bunches of hyphae were sometimes observed alongside of roots (Fig. 5C) and at root hairs (Fig. 5D). The hyphae were mostly alive and well developed, as visualized by Dead/Life studies (Fig. 5A–C). Epidermal root‐cells appeared intact. The analysis of stained root cross‐sections showed that the S. lividans hyphae (Fig. 5E, left) were only found outside roots (Fig. 5E right).


Streptomyces lividans inhibits the proliferation of the fungus Verticillium dahliae on seeds and roots of Arabidopsis thaliana.

Meschke H, Schrempf H - Microb Biotechnol (2010)

© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3815809&req=5

Mentions: Individual seeds of A. thaliana were incubated on agar plates together with S. lividans, for various time‐intervals up to 21 days. Hyphae proliferated extensively within the seed mucilage over the course of 70 h (Fig. 5A, control). The roots of emerging seedlings carried hyphae preferentially at their tip (14 days, Fig. 5B). After further incubation (21 days), bunches of hyphae were sometimes observed alongside of roots (Fig. 5C) and at root hairs (Fig. 5D). The hyphae were mostly alive and well developed, as visualized by Dead/Life studies (Fig. 5A–C). Epidermal root‐cells appeared intact. The analysis of stained root cross‐sections showed that the S. lividans hyphae (Fig. 5E, left) were only found outside roots (Fig. 5E right).

Bottom Line: The extension of hyphae from each individual strain correlates with the reduction of the pectin-containing mucilage-layer.As a result, plants have considerably reduced disease symptoms.As spores of the beneficial S. lividans strain are obtainable in large quantity, its application is highly attractive.

View Article: PubMed Central - PubMed

Affiliation: FB Biology/Chemistry, Applied Genetics of Microorganisms, University of Osnabrück, Barbarastr. 13, 49069 Osnabrück, Germany.

Show MeSH
Related in: MedlinePlus