caa a22 4500 469042532 CHVBK 20180323132815.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF01996325 doi (NATIONALLICENCE)springer-10.1007/BF01996325 Lipopolysaccharides of plant-growth promoting Pseudomonas sp. strain WCS417r induce resistance in carnation to Fusarium wilt [Elektronische Daten] [R. Van Peer, B. Schippers] The numbers of diseased plants could significantly be reduced when microconidia ofFusarium oxysporum f. sp.dianthi were inoculated into the stem and viable-, heat-killed cells or purified LPS of the bacteriumPseudomonas sp. strain WCS417r were applied to the roots. Because the competition betweenF. o. dianthi and the bacterium could be excluded, the disease suppression seems to be due to an induced resistance. Accumulation of phytoalexins was found in the stem segments. No accumulation of these compounds was found when the plants were bacterized but noninfected. It is concluded that cell surface components present in the lipopolysaccharides of the bacterium are the inducing factors. Increased peroxidase activity could be measured in root washes and root extracts after only bacterial preparations were added. No significant differences in peroxidase activity were found in stem extracts. The possible role of increased peroxidase activity in suppression of Fusarium wilt in carnation is discussed. Koninklijke Nederlandse Planteziektenkundige Vereniging, 1992 carnation nationallicence induced resistance nationallicence lipopolysaccharides nationallicence peroxidase nationallicence Pseudomonas nationallicence Van Peer R. Department of Plant Ecology and Evolutionary Biology, Section Plant Pathology, Utrecht University, Sorbonnelaan 16, 3584 CA, Utrecht, the Netherlands aut Schippers B. Department of Plant Ecology and Evolutionary Biology, Section Plant Pathology, Utrecht University, Sorbonnelaan 16, 3584 CA, Utrecht, the Netherlands aut Netherlands Journal of Plant Pathology Kluwer Academic Publishers 98/2(1992-03-01), 129-139 0028-2944 98:2<129 1992 98 10658 https://doi.org/10.1007/BF01996325 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01996325 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Van Peer R. Department of Plant Ecology and Evolutionary Biology, Section Plant Pathology, Utrecht University, Sorbonnelaan 16, 3584 CA, Utrecht, the Netherlands aut NATIONALLICENCE 700 1- Schippers B. Department of Plant Ecology and Evolutionary Biology, Section Plant Pathology, Utrecht University, Sorbonnelaan 16, 3584 CA, Utrecht, the Netherlands aut NATIONALLICENCE 773 0- Netherlands Journal of Plant Pathology Kluwer Academic Publishers 98/2(1992-03-01), 129-139 0028-2944 98:2<129 1992 98 10658 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer