Tartrate Utilization Genes Promote Growth of<i>Agrobacterium</i>spp. on Grapevine

Salomone, J.-Y.; Szegedi, E.; Cobanov, P.; Otten, Léon

doi:10.1094/mpmi.1998.11.8.836

Cited by 17 publications

(23 citation statements)

References 17 publications

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“…Furthermore, competition experiments done in planta with one such strain and its tartrate-minus derivative showed that the TAR region provides a selective advantage for grape colonization (82). The ends of the TAR regions show no evidence for insertion sequences so that the ttu genes do not seem to be part ?…”

Section: Tartrate Utilization Plasmidsmentioning

confidence: 99%

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CROWNGALLOFGRAPE: Biology and Disease Management

Burr

Otten

1999

Annu. Rev. Phytopathol.

139

105

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Not until 1973 was it reported that strains of Agrobacterium that cause crown gall disease of grape form a specific group (later characterized as Agrobacterium vitis). Tumorigenic and nontumorigenic A. vitis have since been isolated from infected and symptomless grapes worldwide. Research on the genetic makeup of A. vitis has led to an improved understanding of pathogen biology and bacterial evolution. In addition, the identification of significant gene sequences has facilitated the development of PCR and RFLP-based identification procedures that continue to improve the detection of A. vitis in plants and soil. Current control practices rely on the use of disease-resistant cultivars, cultural practices that minimize plant injury, and the production of pathogen-free vines. Promising future controls include employment of biological control agents and development of crown gall-resistant transgenic grapevines.

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Section: Tartrate Utilization Plasmidsmentioning

confidence: 99%

“…Structure and function of A. vitis tartrate utilization region, TAR-I(81,82). This region is highly similar to that of TAR-II and TAR-III.…”

mentioning

confidence: 93%

CROWNGALLOFGRAPE: Biology and Disease Management

Burr

Otten

1999

Annu. Rev. Phytopathol.

139

105

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“…L-Tartrate utilization by R. vitis is thought to play a role in host specificity (Szegedi 1985). On the other hand, R. radiobacter (Ti) isolated from host plants other than grapevine do not utilize L-tartaric acid, but some strains of R. radiobacter (Ti) isolated from grapevine do (Burr and Katz 1983;Salomone et al 1996Salomone et al , 1998Sawada and Tsuchiya 2003). Ten tumorigenic isolates identified as R. radiobacter (Ti) also utilized L-tartaric acid ( Table 2).…”

Section: Resultsmentioning

confidence: 99%

Grapevine crown gall caused by Rhizobium radiobacter (Ti) in Japan

Kawaguchi

Inoue

2009

J Gen Plant Pathol

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In 2005, characteristic symptoms of crown gall on grapevines (Vitis vinifera L. cv. Muscat of Alexandria, and cv. Seto Giants) were observed in a commercial greenhouse-orchard in Okayama Prefecture, Japan. Isolations from diseased tissues consistently yielded bacterial colonies that were white, glistening, and produced abundant polysaccharide on potato semi-synthetic agar (PSA) medium. Ten representative isolates were chosen for further characterization. A multiplex polymerase chain reaction (PCR) assay showed these strains were not Rhizobium vitis but did possess a Ti plasmid. The bacteriological characteristics of the isolates corresponded well with R. radiobacter. The almost complete 16S ribosomal DNA sequences of isolates AT06-1 and AT06-2, selected from 10 grapevine isolates, were determined and corresponded to sequences of R. radiobacter. The pathogenicity of the isolates was tested on young grapevine and tomato (Lycopersicon esculentum Mill.) plants. Gall symptoms developed on both plant species after inoculation, and bacteria with the same colony morphology as those inoculated were reisolated. Based on these results, the isolates were identified as R. radiobacter (Ti). This report is the first of the occurrence of R. radiobacter (Ti) on grapevine in Japan. Phylogenetic analyses using the partial nucleotide sequences of virC operon located on a Ti plasmid showed that the isolate of R. radiobacter (Ti) isolated from grapevine and some strains of R. vitis (Ti) belonged to the same monophyletic group, which differed from the groups of R. radiobacter (Ti) isolated from plants other than grapevine and of the majority of R. vitis (Ti) strains isolated from grapevine.

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“…It would be interesting to know what other functions tartrate plasmids carry. on grapevine, a species with high tartrate levels (Kado, 1998;Salomone et al, 1998). Strain AB3 carries two related tartrate utilization (tar) regions include detection of the pathogen in soils, the use of pathogen-free propagation material, biological control, and traditional or molecular breeding for new resistant varieties.…”

Section: Sources Of Infection and Control Of Crown Gall Diseasementioning

confidence: 99%