Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary
Among diseases that affect walnut, bacterial blight is considered the most important one in all walnut growing areas both from Hungary and Romania. For the determination of susceptibility/resistance of walnut cultivars in our posterior work planned, 61 bacterial isolates were collected from walnuts...
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2014-04-01
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doaj-7201ce7519f84ef6acad697c11b4cb0d2020-11-25T02:58:23ZengUniversity of DebrecenInternational Journal of Horticultural Science1585-04042676-931X2014-04-01201-210.31421/IJHS/20/1-2/1119Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and HungaryA. Bandi0Department of Pomology, Faculty of Horticultural Science, Corvinus University of Budapest, 1118 Budapest, Villányi str. 29–43, Hungary; Department of Horticulture, Faculty of Technical Science, Sapientia Hungarian University of Transylvania, Tg-Mures/Corunca, Sighisoara str. 1C. Romania Among diseases that affect walnut, bacterial blight is considered the most important one in all walnut growing areas both from Hungary and Romania. For the determination of susceptibility/resistance of walnut cultivars in our posterior work planned, 61 bacterial isolates were collected from walnuts showing symptoms of blight, with the purpose of isolating Xanthomonas arboricola pv. juglandis (Xaj). The characteristic Xaj colonies, frequently present as saprophytes in the infected plant tissues, were separated from other bacteria according to their morphology, yellow colour, hydrolysis of starch, and oxidation of glucose. All isolates were tested for pathogenicity by hypersensitive reaction on tobacco leaves (Nicotiana tabacum L.), bean pods (Phaseolus vulgaris L) and unripe nuts (Juglans regia L.). Determination of taxonomy of the selected isolates denotes a possible subdivision (races, biotypes) of Xaj occurring in different geographical areas, API 20NE and API 50CH kits were used. Hungarian and Romanian strains showed a high degree of similarity of carbohydrate utilization but slightly differed from the type strain. All were Cu-sensitive. https://ojs.lib.unideb.hu/IJHS/article/view/1119biochemical comparisoncopper resistancewalnutXanthomonas arboricola pv. juglandis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. Bandi |
spellingShingle |
A. Bandi Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary International Journal of Horticultural Science biochemical comparison copper resistance walnut Xanthomonas arboricola pv. juglandis |
author_facet |
A. Bandi |
author_sort |
A. Bandi |
title |
Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary |
title_short |
Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary |
title_full |
Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary |
title_fullStr |
Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary |
title_full_unstemmed |
Comparison of Xanthomonas arboricola pv. juglandis isolates from walnut trees grown in Romania and Hungary |
title_sort |
comparison of xanthomonas arboricola pv. juglandis isolates from walnut trees grown in romania and hungary |
publisher |
University of Debrecen |
series |
International Journal of Horticultural Science |
issn |
1585-0404 2676-931X |
publishDate |
2014-04-01 |
description |
Among diseases that affect walnut, bacterial blight is considered the most important one in all walnut growing areas both from Hungary and Romania. For the determination of susceptibility/resistance of walnut cultivars in our posterior work planned, 61 bacterial isolates were collected from walnuts showing symptoms of blight, with the purpose of isolating Xanthomonas arboricola pv. juglandis (Xaj). The characteristic Xaj colonies, frequently present as saprophytes in the infected plant tissues, were separated from other bacteria according to their morphology, yellow colour, hydrolysis of starch, and oxidation of glucose. All isolates were tested for pathogenicity by hypersensitive reaction on tobacco leaves (Nicotiana tabacum L.), bean pods (Phaseolus vulgaris L) and unripe nuts (Juglans regia L.). Determination of taxonomy of the selected isolates denotes a possible subdivision (races, biotypes) of Xaj occurring in different geographical areas, API 20NE and API 50CH kits were used. Hungarian and Romanian strains showed a high degree of similarity of carbohydrate utilization but slightly differed from the type strain. All were Cu-sensitive.
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topic |
biochemical comparison copper resistance walnut Xanthomonas arboricola pv. juglandis |
url |
https://ojs.lib.unideb.hu/IJHS/article/view/1119 |
work_keys_str_mv |
AT abandi comparisonofxanthomonasarboricolapvjuglandisisolatesfromwalnuttreesgrowninromaniaandhungary |
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1724706690590310400 |