Cruciferous Weeds as Sources of Inoculum ofXanthomonas campestrisin Black Rot of Crucifers

Schaad, N. W.; Dianese, J. C.

doi:10.1094/phyto-71-1215

Cited by 73 publications

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“…In California, L. appelianum was among cruciferous weeds whose seeds were found to be infected by X. campestris, although the plants were otherwise symptomless, and infection of such perennial species, in particular, could provide a continuous source of primary inoculum in transplant and seed fields of cultivated cruciferous crops (Schaad and Dianese 1981).…”

Section: Response To Other Human Manipulationmentioning

confidence: 99%

The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated)

Francis¹,

Warwick²

2008

Can. J. Plant Sci.

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Al-Shehbaz (updated). Can. J. Plant Sci. 88: 379Á401. This paper updates an earlier paper by Mulligan and Findlay (1974) on the cruciferous weeds Lepidium draba, L. chalepense and L. appelianum (treated in the previous paper as Cardaria draba, C. chalepensis and C. pubescens, respectively). Known collectively as hoary cresses, these species reached North America in the 19th and early 20th centuries as contaminants in seed or in ballast. The three species spread extensively in the western parts of the continent by the mid 20th century, partly through seed dissemination, but also by establishment of clonal patches and rhizomatous spread. In the prairie provinces the three species are weeds in grainfields, hayfields and forage crops, and have been largely under control in those crops since the 1970s. By the 1970s all three species had spread into agricultural regions of south central British Columbia and remain a serious problem there. They have also spread into forest, range, and riparian areas of Alberta and British Columbia and are among weedy threats to native ecosystems. Populations in Saskatchewan and Manitoba appear to have stabilized, but remain on noxious weed lists. In the western United States, the species have also spread from cultivated areas into rangelands, and L. draba in particular competes successfully with native vegetation, resulting in reduced local biodiversity. Lepidium draba can also reduce forage production, quality and palatability. Biocontrol measures for L. draba are under investigation. Mechanical controls have proved to be generally ineffective in large populations. Herbicides are effective in the short term in some agricultural crops, but do not provide long-term control, and are of restricted use on rangelands and at riparian sites. Potential beneficial uses of Lepidium draba in phytoremediation and as a source of disease-fighting chemical derivatives are reported. e sie`cle, elles s'e´taient largement disse´mine´es dans la partie ouest du continent, en partie graˆce a`la dispersion des semences, mais aussi par clonage et propagation au moyen de rhizomes. Dans les provinces des Prairies, les trois espe`ces envahissent les champs de ce´re´ales, de foin et de plantes fourrage`res, mais on parvient a`les controˆler dans ces cultures depuis les anne´es 1970. Par la suite, les trois espe`ces ont gagne´les re´gions agricoles du centre-sud de la Colombie-Britannique ou`elles demeurent un se´rieux proble`me. Elles ont e´galement atteint les foreˆts, les grands parcours et les zones riveraines de l'Alberta et de la Colombie-Britannique ou`elles figurent parmi les adventices menac¸ant les e´cosyste`mes naturels. Les populations du Manitoba et de la Saskatchewan semblent s'eˆtre stabilise´es, mais les espe`ces restent sur la liste des mauvaises herbes nuisibles. Dans l'ouest des É tats-Unis, elles ont aussi quitte´les zones cultive´es pour les grands paˆturages et L. draba, en particulier, livre une concurrence fort efficace a`la ve´ge´tation indige`ne, ce qui nuit a`la biodiversite´locale. Le...

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Section: Response To Other Human Manipulationmentioning

confidence: 99%

The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated)

Francis¹,

Warwick²

2008

Can. J. Plant Sci.

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“…Such symptoms lead to a systemic infection in susceptible plants so that crop quality and yield substantially decrease. Crop debris and cruciferous weed are potential inoculum sources in field [4]. The pathogen can be retained in seeds via vessels and causes severe incidence in descent seedlings; consequently, Xcc is difficult to prevent by agricultural practices such as seed treatment, crop rotation and use of agrochemicals.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Positions of QTLs Conferring Resistance to Xanthomonas campestris pv. campestris in Brassica oleracea

Tonu¹,

Doullah²,

Shimizu³

et al. 2013

AJPS

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Black rot, caused by Xanthomonas campestris pv. campestris (Xcc) is possibly the most important disease of Brassica worldwide. To compare chromosomal positions of Xcc resistance loci in Brassica oleracea between the present and published studies and to develop marker assisted selection (MAS) to resistance against Xcc race 1, we constructed a B. oleracea map, including pW, pX and BoCL markers that were closely linked to previously reported Xcc resistance QTLs. We also analyzed Xcc resistance QTLs by improving our previously reported map derived from the cross of a susceptible double-haploid line (GC P09) with a resistant double-haploid line (Reiho P01). In the nine linkage groups obtained (C1-C9), the major QTL, XccBo(Reiho)2, was derived from Reiho with a maximum LOD score (7.7) in C8. The QTL (LOD 4.4) located in C9, XccBo(GC)1 was derived from the susceptible GC. The other QTL (LOD 4.4), XccBo(Reiho)1, was found in C5. Based on common markers, it was possible to compare our finding Xcc resistance QTLs with the B. oleraceaXcc loci reported by previous authors; XccBo(Reiho)1 and XccBo(GC)1 may be identical to the Xcc resistance QTLs reported previously or a different member contained in the same resistance gene cluster. Our map includes public SSR markers linked to Xcc resistance genes that will promote pyramiding Xcc resistance genes in B. oleracea. The present study will also contribute to a better understanding of genetic control of Xcc resistance.

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“…campestris (Pammel) Dowson (Xcc) is a causal agent of black rot disease on a wide range of Brassicaceae plants including vegetable crops, ornamental crucifers as well as weeds (Williams 1980;Schaad and Dianese 1981). The disease is described through the world and is considered to be one of the most destructive diseases of crucifers.…”

Section: Introductionmentioning

confidence: 99%

Testing of Inoculation Methods and Susceptibility Testing of Perspective Cabbage Breeding Lines (Brassica Oleracea convar. Capitata) to the Black Rot Disease Caused by Xanthomonas Campestris pv. Campestris

Peňázová¹,

Kopta²,

Jurica³

et al. 2018

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The susceptibility of twenty-four cabbage breeding lines to Xanthomonas campestris pv. campestris was evaluated. The selection of appropriate inoculation method was done on 4 cabbage cultivars ('Cerox', 'Sintex', 'Sonja' and 'Avak'). One month old plants were infected by 5 inoculation methods (spraying, injection by syringe, multiple pricking, carborundum abrasion and scissor clipping method). Four different bacterial isolates of Xcc (WHRI 3811, 3971A, 1279A; SU) and their mixture were evaluated for the aggressiveness on 'Cerox' and 'Sonja' cultivars. On the basis of obtained results, breeding lines of head cabbage were inoculated by mixture of all tested isolates using multiple pricking method. The disease severity of inoculated seedlings proved high susceptibility of young plants to the Xcc infection. The disease incidence determined 75 and 105 days after sowing showed changes for 16 of tested lines and indicated that resistance testing should be observed until mature stage. The study revealed five breeding lines (DP25, T1, IT10, Kalibos and Avak1) with disease incidence lower than 20 % as perspective sources of resistance for further breeding.

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Cruciferous Weeds as Sources of Inoculum ofXanthomonas campestrisin Black Rot of Crucifers

Cited by 73 publications

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The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated)

The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated)

Comparison of Positions of QTLs Conferring Resistance to <i>Xanthomonas campestris</i> pv. <i>campestris</i> in <i>Brassica oleracea</i>

Testing of Inoculation Methods and Susceptibility Testing of Perspective Cabbage Breeding Lines (Brassica Oleracea convar. Capitata) to the Black Rot Disease Caused by Xanthomonas Campestris pv. Campestris

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Cruciferous Weeds as Sources of Inoculum ofXanthomonas campestrisin Black Rot of Crucifers

Cited by 73 publications

References 0 publications

The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated)

The biology of Canadian weeds. 3. Lepidium draba L., L. chalepense L., L. appelianum Al-Shehbaz (updated)

Comparison of Positions of QTLs Conferring Resistance to &lt;i&gt;Xanthomonas campestris&lt;/i&gt; pv. &lt;i&gt;campestris&lt;/i&gt; in &lt;i&gt;Brassica oleracea&lt;/i&gt;

Testing of Inoculation Methods and Susceptibility Testing of Perspective Cabbage Breeding Lines (Brassica Oleracea convar. Capitata) to the Black Rot Disease Caused by Xanthomonas Campestris pv. Campestris

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Comparison of Positions of QTLs Conferring Resistance to <i>Xanthomonas campestris</i> pv. <i>campestris</i> in <i>Brassica oleracea</i>