In Hungary, from the beginning of 19th century, horse-chestnut trees have been planted widely and are popular ornamental in public parks, along streets, gardens. summer 2015, longitudinal cracks on trunk branches intensive oozing brown liquid were observed a wound tree park Budapest. Some years later, 2018 2019, same symptoms found other locations Several bacteria reported that induce similar s...

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...

Members of the genus Erwinia are primarily plant-pathogenic and plant-associated bacteria. As modern approaches have focused on the direct analysis of genes and their gene products, commonly associated phenotypes such as the type of disease that they cause and the relatedness of rDNA have prompted splitting of certain Erwinia members into the genus Enterobacter, Pectobacterium, Pantoea or Brenn...

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 ...

Brenneria species are bacterial plant pathogens mainly affecting woody plants. Association of all members with devastating disorders (e.g., acute oak decline in Iran and United Kingdom) due to adaptation pathogenic behavior response host environmental factors. Some species, including B. goodwinii, salicis, nigrifluens, also show endophytic residence. Here we that novel sp. closely related. Gene...