Biology of A tumefaciens Well known to induce crown gall tumor A tumefaciens lives around root surfaces(in rhizosphere) where it using nutriel that leak from the root tissues 谷 infects only through wound sites and actively chemotactic to them Www-genvagar.slu.se/teknik/ djup/plasm. htm Bacterial T-plasmid produces Plant wound produces receptors for acetosyringone COCH acetosyringone CH, O OCH,Biology of A. tumefaciens www-genvagar.slu.se/teknik/ djup/plasm.htm Well known to induce crown gall tumor A.tumefaciens lives around root surfaces (in rhizosphere) where it using nutrients that leak from the root tissues infects only through wound sites and actively chemotactic to them Plant wound produces acetosyringone Bacterial T-plasmid produces receptors for acetosyringone