Characterization of
            <i>Brenneria</i>
            sp. from Poplar Cankers in Spain

Biosca, Elena G.; Martín, Silvia; Zuriaga, P.; Montón, Carmina; López-Ocaña, Laura; López, Marí M.

doi:10.1002/9783527611904.ch68

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…Cytospora chrysosperma and Botryosphaeria dothidea are the main fungal pathogen of poplar cankers worldwide (Sinclair and Lyon, 2005; Fan et al, 2019). In the 1990s, the bacterial genus Brenneria was also noted to cause canker of trees in Spain, including poplar (Biosca et al, 2006). Currently, a large portion of the P .…”

Section: Introductionmentioning

confidence: 99%

Molecular Aspects of an Emerging Poplar Canker Caused by Lonsdalea populi

2019

Front. Microbiol.

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The Gram-negative bacterium Lonsdalea populi causes a lethal disease known as bark canker on Populus × euramericana in China and Europe. Typical symptoms of bark canker include an abundant white-colored fluid, which oozes from the infected tissues. The availability of the genomic sequence of the bacterium provided the necessary resource to launch genome-scale investigations into the mechanisms fundamental to pathogenesis. Functional analyses of a diverse group of genes encoding virulence factors and components of signaling pathways indicate that successful bark infection depends on specific responses by the pathogen to various stresses, including oxidative stress. Although physiology of resistance is well studied, the molecular processes underlying the defense responses and the genetic basis of resistance to L. populi and in other poplar species remain largely unknown. Control of the disease has relied on chemical measures. Due to the genetic amenability of Lonsdalea and poplar, this pathosystem will become an important model system to unravel molecular mechanisms of bacterial pathogenicity on woody plants. Increased understanding of pathogenesis and signaling in the interaction will facilitate the management of this kind of poplar canker.

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Section: Introductionmentioning

confidence: 99%

Molecular Aspects of an Emerging Poplar Canker Caused by Lonsdalea populi

2019

Front. Microbiol.

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“…1). The symptoms were similar to bark canker of Populus × euramericana in Spain (Biosca et al ., 2006).…”

Section: Figurementioning

confidence: 99%

First report of bleeding canker caused by Rahnella sp. on Populus nigra in Iran

Moradi-Amirabad

Khodakaramian

2020

New Disease Reports

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“…Agrobacterium radiobacter (Beijerinck and van Delden) Conn, Agrobacterium tumefaciens (Smith and Townsend) Conn] causes crown gall disease by transferring and integrating bacterial DNA (T-DNA) into the plant genome. In the 1990s, the bacterial genus Brenneria was also reported to cause canker of trees including poplar (Biosca et al 2006). Currently, large portions of the plantation areas of the hybrid poplar Populus × euramericana in China and Hungary are affected by potentially lethal Lonsdalea populi (formerly Lonsdalea quercina subsp.…”

Section: Introductionmentioning

confidence: 99%

Bacteria associated with vascular wilt of poplar

et al. 2021

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In 2017, a 560-ha area of hybrid poplar plantation in northern Poland showed symptoms of tree decline. Leaves appeared smaller, turned yellow–brown, and were shed prematurely. Twigs and smaller branches died. Bark was sunken and discolored, often loosened and split. Trunks decayed from the base. Phloem and xylem showed brown necrosis. Ten per cent of trees died in 1–2 months. None of these symptoms was typical for known poplar diseases. Bacteria in soil and in the necrotic base of poplar trunk were analyzed with Illumina sequencing. Soil and wood were colonized by at least 615 and 249 taxa. The majority of bacteria were common to soil and wood. The most common taxa in soil were: Acidobacteria (14.76%), Actinobacteria (14.58%), Proteobacteria (36.87) with Betaproteobacteria (6.52%), (6.10%), Comamonadaceae (2.79%), and Verrucomicrobia (5.31%).The most common taxa in wood were: Bacteroidetes (22.72%) including Chryseobacterium (5.07%), Flavobacteriales (10.87%), Sphingobacteriales (9.40%) with Pedobacter cryoconitis (7.31%), Proteobacteria (73.79%) with Enterobacteriales (33.25%) including Serratia (15.30%) and Sodalis (6.52%), Pseudomonadales (9.83%) including Pseudomonas (9.02%), Rhizobiales (6.83%), Sphingomonadales (5.65%), and Xanthomonadales (11.19%). Possible pathogens were Pseudomonas, Rhizobium and Xanthomonas. The potential initial, endophytic character of bacteria is discussed. Soil and possibly planting material might be the reservoir of pathogen inoculum.

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Characterization of Brenneria sp. from Poplar Cankers in Spain

Cited by 6 publications

References 4 publications

Molecular Aspects of an Emerging Poplar Canker Caused by Lonsdalea populi

Molecular Aspects of an Emerging Poplar Canker Caused by Lonsdalea populi

First report of bleeding canker caused by Rahnella sp. on Populus nigra in Iran

Bacteria associated with vascular wilt of poplar

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