Sources of resistance to Curtobacterium flaccumfaciens pv. flaccumfaciens in common bean accessions

Valentini, Giseli; Baldissera,; Rocha, Fabiani da; Almeida, Carmelice Boff de; Heidemann, Joice Crescêncio; Guidolin, Altamir Frederico

doi:10.1590/s1984-70332011000300008

Cited by 3 publications

(3 citation statements)

References 13 publications

(17 reference statements)

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“…The resistance observed in the cultivars IAC Alvorada and IAC Diplomata was probably inherited from IAC Carioca Pyatã, which is one of their parents (Carbonell et al 2008), known for its good levels of Cff-resistance (Maringoni 2002, Camara et al 2009, Valentini et al 2011b). The cul- tivars IPR Corujinha, IPR Tangará, and IAPAR Siriri were described as moderately Cff-resistant (Comissão 2012), in partial agreement with our results, since the cultivars IPR Corujinha and IPR Tangará were considered resistant in this study, while IAPAR Siriri was considered moderately resistant ( Table 2).…”

Section: Resultsmentioning

confidence: 99%

“…Rava et al (2004) found high levels of Cff-resistance in the common bean accessions Mulatinho, FeijãoBranco, Desconhecido, Amarelinho, Enxofre/Amarelo, Coquinho Enxofre, Jalinho, Amarelo Arroxeado, Rapezão, Feijão Mourinho, Feijão Baetão, and Vermelho 1 Epamig, among a total of 333 accessions of Embrapa Rice and Beans. According to Theodoro and Maringoni (2006), the cultivars Mouro Pirituba and Vagem Amarela have satisfactory levels of Cff-resistance, and Valentini et al (2011b) identified a certain level of resistance in the common bean accession BAF 122, and in the cultivars IAC Carioca Akytã, IAC In these studies, the plants were inoculated by puncturing the stem, which, according to Krause et al (2009), is more satisfactory than inoculation by injuries at the seed hilum or cutting seedling roots to evaluate the Cff-resistance reaction of common bean plants.…”

Section: Introductionmentioning

confidence: 99%

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Reaction and colonization of common bean genotypes by Curtobacterium flaccumfaciens pv. Flaccumfaciens

Maringoni

Ishiszuka

Silva

et al. 2015

Crop Breed. Appl. Biotechnol.

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Reaction and colonization of common bean genotypes by INTRODUCTIONBrazil is one of the world's leading common bean producers and consumers, with a harvest of almost three million tons in 2012, in the main producing states of Paraná, Minas Gerais, São Paulo and Goiás (Agrianual 2013). Bacterial diseases are among the yield-limiting factors of the crop in the country, particularly bacterial wilt. This disease is caused by Curtobacterium flaccumfaciens pv. flaccumfaciens (Cff), and was first described by Hedges (1922) in the USA. Currently, the disease has already been detected in several countries (EPPO 2011) and Brazilian states (Valentini et al. 2010). Bacterial wilt colonizes the xylem vessels of the affected plants, leading to disruption and degradation of the primary xylem. Infected plants show symptoms of wilting leaves, which later evolve to withering and death (Dinesen 1978). Yield losses in susceptible cultivars can be close to 50% (Miranda Filho 2006). Bacterial wilt is controlled by preventive measures, e.g., by using healthy seeds, incorporation of crop bean residues into the soil, crop rotation with non-host species, and by using cultivars with some level of resistance (Huang et al. 2009, Valentini et al. 2010.A number of studies identified Cff-resistant common bean genotypes in Brazil. According to Maringoni (2002), high resistance levels were observed in the cultivars IAC Carioca Akytã, IAC Carioca Aruã, and IAC Carioca Pyatã. Souza et al. (2006) Carioca Aruã, IAC Carioca Pyatã, and IAC Carioca Tybatã, whose resistance reactions were found to be as described by Maringoni (2002) and Souza et al. (2006).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reaction and colonization of common bean genotypes by Curtobacterium flaccumfaciens pv. Flaccumfaciens

Maringoni

Ishiszuka

Silva

et al. 2015

Crop Breed. Appl. Biotechnol.

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“…flaccumfaciens, that so far have been identified outside the EU. Among them, only some are considered suitable for commercial production (Maringoni, 2002;Souza et al, 2006;Valentini et al, 2011;Urrea and Harveson, 2014).…”

Section: Host Rangementioning

confidence: 99%

Pest categorisation of Curtobacterium flaccumfaciens pv. flaccumfaciens

Jeger¹,

Bragard²,

Candresse³

et al. 2018

EFS2

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest categorisation of the seed-borne bacterium Curtobacterium flaccumfaciens pv. flaccumfaciens. The pest is regulated in Council Directive 2000/29/EC (Annex IIB) as a harmful organism whose introduction into, and spread within, the protected zones (PZ) of Greece, Portugal and Spain shall be banned if present on seeds of Phaseolus vulgaris and of Dolichos. The bacterium is widely distributed outside the EU and causes a systemic vascular disease (bacterial wilt of bean) as well as bacterial tan spot disease on soybean. The pest was sporadically recorded in several EU Member States in the past, but is currently not known to occur in the EU. The identity of the bacterium is well established and identification methods are available. The major host is common bean (Phaseolus vulgaris), but other crops and weeds are, or may be, hosts or play a role as reservoirs, with uncertainties. Seed transmission remains uncertain for minor and alternative host species. The main pathway for entry is seed. The role of other pathways (e.g. irrigation water and infected residues) is uncertain. Should the bacterium enter the EU (including the PZ), it may establish, spread and have an impact on its host crops. The use of healthy seeds is the most effective control measure. Curtobacterium flaccumfaciens pv. flaccumfaciens fits all the criteria assessed by EFSA to be regarded as a Union quarantine pest.

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