Stenotrophomonas rhizophila DSM14405T promotes plant growth probably by altering fungal communities in the rhizosphere

Christoph Stephan Schmidt, Mohammadali Alavi, Massimiliano Cardinale, Henry Müller, Gabriele Berg

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

Abstract

Stenotrophomonas rhizophila DSM14405T is of high biotechnological interest as plant growth stimulator, especially for salinated conditions. The objective of this study was to determine the effect of plant species (cotton, tomato, and sweet pepper) on colonisation and plant growth promotion of this beneficial bacterium in gnotobiotic systems and in non-sterile soil. All plant structures (leaves, stems, and roots) were densely colonised by DSM14405T reaching up to 109 cells g−1 fresh weight; under gnotobiotic conditions the abundances were 4–5 orders of magnitude higher than in non-sterile soil. Under non-sterile conditions and ambient humidity, tomato shoots were more densely colonised than shoots of sweet pepper and cotton. S. rhizophila DSM14405T was shown to grow endophytically and colonise the vicinity of root hairs of tomato. Plant growth promotion was particularly apparent in tomato …
Originalspracheenglisch
Seiten (von - bis)947–960
FachzeitschriftBiology and Fertility of Soils
Jahrgang48
Ausgabenummer8
DOIs
PublikationsstatusVeröffentlicht - Nov 2012

Fields of Expertise

  • Human- & Biotechnology

Treatment code (Nähere Zuordnung)

  • Experimental

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