First Report of Bacterial Deep Bark Canker of Walnut Caused by Brenneria (Erwinia) rubrifaciens in Europe
نویسندگان
چکیده
منابع مشابه
Isolation and Characterization of Brenneria nigrifluens Causing Bacterial Shallow Bark Canker of Walnut Trees in Golestan Province, Iran
Shallow bark canker incited by Brenneria nigrifluens is considered one of the most dangerous diseases which can cause a significant reduction in walnut and timber production. During spring and summer of 2019, walnut gardens were surveyed for symptoms like leaf spot, fruit, and stem canker from four different regions of Golestan province located in Iran. A set of 11 Gram-negative bacteria were ...
متن کاملReal-time Pcr Detection and Development of a Bioassay for the Deep Bark Canker Pathogen, Brenneria Rubrifaciens
Deep Bark Canker (DBC), caused by the bacterium Brenneria rubrifaciens afflicts English walnut cultivars and is characterized by late onset of symptoms in trees greater than 15 years old. These symptoms include deep bleeding vertical cankers along the trunk and larger branches that exude a bacterial-laden reddish brown sap. B. rubrifaciens produces a unique water-soluble red pigment called rubr...
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In 2008, a global production rounding 1,724 and 1,053 million metric tones respectively for walnut and hazelnut has been estimated. Bacterial diseases are threatening these nut crops all over the World. Xhanthomonas arboricola pv. juglandis (Xaj) is the agent of walnut bacteriosis, and has been associated also to brown apical necrosis. Several walnut genotypes have shown a range of tolerance to...
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
occurrence and distribution of shallow bark canker of walnut trees in northern provinces of iran
in recent years, shallow bark canker of walnut (juglandis regia l.) trees has become fairly widespread in iran. to determine the distribution of the disease in golestan, mazandaran and gilan provinces, from early summer to mid-fall seasons of 2004, more than one hundred bark samples were collected from walnut trees showing symptoms of shallow bark canker. sixty strains of bacteria were isolated...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2002
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis.2002.86.6.696b