During 2006–2008, on olive plants (Olea europea) in Nepal, knots (0·5–3 cm in diameter) resembling those caused by Pseudomonas savastanoi pv. savastanoi were observed. Bacterial cells were isolated on nutrient agar medium and the isolates were positive for oxidase, pectinolytic and arginine dihydrolase activity, tobacco hypersensitivity; production of fluorescent pigments and of indole on KB and on MM media, respectively, and negative in the production of levan. Characteristic knot symptoms were observed on artificially inoculated plants within six months after inoculation. Molecular identification was achieved by sequencing the 16S rDNA region. This is the first record of olive knot disease on olive trees (Olea europea) in Nepal.

First report of olive knot caused by Pseudomonas savastanoi pv. savastanoi in Nepal / G. M., Balestra; J. R., Lamichhane; M. B., Kshetri; Mazzaglia, Angelo; L., Varvaro. - In: PLANT PATHOLOGY. - ISSN 0032-0862. - 58:2(2009), pp. 393-393. [10.1111/j.1365-3059.2008.02007.x]

First report of olive knot caused by Pseudomonas savastanoi pv. savastanoi in Nepal

MAZZAGLIA, ANGELO;
2009

Abstract

During 2006–2008, on olive plants (Olea europea) in Nepal, knots (0·5–3 cm in diameter) resembling those caused by Pseudomonas savastanoi pv. savastanoi were observed. Bacterial cells were isolated on nutrient agar medium and the isolates were positive for oxidase, pectinolytic and arginine dihydrolase activity, tobacco hypersensitivity; production of fluorescent pigments and of indole on KB and on MM media, respectively, and negative in the production of levan. Characteristic knot symptoms were observed on artificially inoculated plants within six months after inoculation. Molecular identification was achieved by sequencing the 16S rDNA region. This is the first record of olive knot disease on olive trees (Olea europea) in Nepal.
2009
olea europea; pseudomonas; pseudomonas savastanoi
01 Pubblicazione su rivista::01a Articolo in rivista
First report of olive knot caused by Pseudomonas savastanoi pv. savastanoi in Nepal / G. M., Balestra; J. R., Lamichhane; M. B., Kshetri; Mazzaglia, Angelo; L., Varvaro. - In: PLANT PATHOLOGY. - ISSN 0032-0862. - 58:2(2009), pp. 393-393. [10.1111/j.1365-3059.2008.02007.x]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/485995
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