Metagenomic analysis of the 1-aminocyclopropane-1-carboxylate deaminase gene (<Emphasis Type="Italic">acdS</Emphasis>) operon of an uncultured bacterial endophyte colonizing <Emphasis Type="Italic">Solanum tuberosum</Emphasis> L
(1) AIT Austrian Institute of Technology GmbH, A-3430 Tulln an der Donau, Austria;(2) Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, A-8010 Graz, Austria;