Germination of Plasmodiophora brassicae resting spores stimulated by a non-host plant

Friberg, Hanna; Lagerlöf, Jan; Rämert, Birgitta

doi:10.1007/s10658-005-2797-0

Cited by 57 publications

(41 citation statements)

References 18 publications

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“…However, the results of empirical studies to assess the efficacy of this approach were inconsistent (Friberg et al, 2006). Use of bait crops to stimulate germination of resting spores did not reduce clubroot incidence or severity in northern Europe (Friberg et al, 2005(Friberg et al, , 2006, but a 5-year fallow period resulted in a substantial decrease in resting spore populations compared with continuous cultivation of a clubroot-resistant Japanese radish (Raphanus sativus var. longipinnotu Bailey) in Japan (Ikegami, 1985).…”

Section: Baiting Cropsmentioning

confidence: 99%

A comparison of clubroot development and management on canola and Brassica vegetables

Gossen

McDonald

Hwang

et al. 2013

Canadian Journal of Plant Pathology

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A comparison of clubroot development and management on canola and Brassica vegetables, Canadian Journal of Plant Pathology, 35:2, 175-191, Abstract: Clubroot of canola was identified for the first time on the Canadian prairies in 2003, and is spreading rapidly across the region.Although clubroot has been studied extensively on vegetable Brassica crops, it was not clear initially how much of the information would be directly transferable from the intensive production of vegetable crops to the extensive production practices used for canola. This review examines similarities and differences between clubroot development and management on vegetable crops and canola. One important difference was that clubroot generally has a larger economic impact on canola, which is harvested for seed, than on vegetables, especially those where early vegetative growth is the marketable component. Also, clubroot has spread within the production area more quickly than was expected based on vegetable production. This occurs in large part because the resting spores are readily moved within and between fields on the heavy machinery used for canola production, but movement of spores by wind and water is also being assessed. Interestingly, crop rotation to reduce yield losses may be a more viable approach for canola than in vegetable production. Resistance to clubroot is the most consistent and economically viable approach to clubroot management in canola, but several lines of evidence indicate that this resistance may not be durable. Fortunately, the large acreage of canola production in Canada ensures that new sources of resistance will be developed and deployed as existing sources are eroded. Pathogen development and cultural control are very similar on vegetables and canola; bait crops and soil amendments are generally not commercially viable in either system; and biocontrol has a limited potential at this time. Manipulation of seeding date, application of fungicide, and soil fumigation generally have more potential for use in vegetable production than for canola. Identification of approaches that reduce disease pressure in clubroot-infested fields and increase the durability and diversity of genes for clubroot resistance represent important lines of future research.Résumé: La hernie des crucifères a été détectée pour la première fois dans des cultures de canola sur les Prairies canadiennes en 2003. Cette maladie continue d'envahir la région à un rythme accéléré. Cette maladie a fait l'objet de nombreuses études chez les cultures maraîchères du genre Brassica et nous ne savions pas, initialement, quelles informations dérivées de la production intensive des cultures maraîchères seraient pertinentes pour la culture à grande échelle du canola. Cet article de synthèse examine les similitudes et les différences entre l'évolution et la gestion de la hernie chez les cultures maraîchères et le canola. Une différence importante est le plus grand impact économique de la hernie sur le canola, qui est cultivé pour sa graine, que sur les cultures mar...

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Section: Baiting Cropsmentioning

confidence: 99%

A comparison of clubroot development and management on canola and Brassica vegetables

Gossen

McDonald

Hwang

et al. 2013

Canadian Journal of Plant Pathology

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“…In a previous laboratory study, germination of P. brassicae resting spores was stimulated by exudate solutions from the nonhost plant L. perenne (Friberg et al ., 2005). In the laboratory study, resting spore reaction was studied in aqueous solution, while in the present study the resting spores were in soil.…”

Section: Discussionmentioning

confidence: 99%

“…The fourth, red clover ( Trifolium pratense ), has not been shown to stimulate germination (Robak, 1996; Wallenhammar, 1999). In a previous laboratory study, exudates from growing roots of perennial ryegrass stimulated germination of P. brassicae resting spores, while exudates from roots of leek, winter rye and red clover did not (Friberg et al ., 2005). The aim of the present study was to test the hypothesis that nonhost plants can increase the rate of decline of P. brassicae resting spores and thereby contribute to sanitation of infested soils.…”

Section: Introductionmentioning

confidence: 94%

Usefulness of nonhost plants in managing Plasmodiophora brassicae

Friberg¹,

Lagerlöf

Rämert

2006

Plant Pathology

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Germination of resting spores of Plasmodiophora brassicae , causal agent of clubroot in crucifers, may be stimulated by certain nonhost plants. Without a host plant to infect, such germination would lead to a reduced persistence of resting spores in the soil. The effect of four nonhost plants on P. brassicae was investigated in a 3-year field experiment and a 14-month glasshouse experiment. Three of the plant species used, leek ( Allium porrum ), winter rye ( Secale cereale ) and perennial ryegrass ( Lolium perenne ), have been reported to stimulate resting spore germination, while the fourth, red clover ( Trifolium pratense ), does not. In the field experiment, none of the plant species reduced the concentration of P. brassicae in soils when tested with bioassay plants (Chinese cabbage, Brassica rapa var. pekinensis ). In the glasshouse experiment, there was a lower disease level in all plant treatments compared with the plant-free control following incorporation and decomposition of plant roots. At this time, pH in the soils with plant treatments was higher than that in the control soil. There were no indications of a species-specific interaction between any of the nonhost plants investigated and P. brassicae , and it cannot be concluded that any of them would be useful in the sanitation of P. brassicae -infested soils within short time periods.

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“…One of the further management strategies in P. brassicae protection is using 'bait crops' , which induce the resting spore germination in the absence of a susceptible host (Rod & Robak 1994;Friberg et al 2005;Hwang et al 2011bHwang et al , 2014. Plants from the families Papaveraceae, Poaceae and Rosaceae provoke the spore germination, but only the primary phase of the life cycle occurs and resting spores are not developed (Colhoun 1958;Karling 1968).…”

Section: Bait Cropmentioning

confidence: 99%

Clubroot caused by Plasmodiophora brassicae Wor.: a review of emerging serious disease of oilseed rape in the Czech Republic

Řičařová¹,

Kazda²,

Singh³

et al. 2016

Plant Prot. Sci.

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AbstractŘičařová V., Kazda J., Singh K., Ryšánek P. (2016): Clubroot caused by Plasmodiophora brassicae Wor.: a review of emerging serious disease of oilseed rape in the Czech Republic. Plant Protect. Sci., 52: 71-86.Winter oilseed rape is the second most frequently grown crop in the Czech Republic. Clubroot, caused by Plasmodiophora brassicae (Wor.), was previously a problem in production of vegetable. The disease has been spreading on winter rape (Brassica napus L.) over the past four years. Infected stands were reported throughout the country in autumn 2011. The pathogen is probably widely spread in the whole country, its incidence depends on suitable weather conditions. Every field with clubroot is considered as contaminated for many years. The amounts of inoculum and its distribution are not sufficient yet, but this is just the initial stage of colonisation. There is a similar situation resembling experiences from other countries (Canada, Germany) where clubroot has gradually expanded in the last 15 years.

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Germination of Plasmodiophora brassicae resting spores stimulated by a non-host plant

Cited by 57 publications

References 18 publications

A comparison of clubroot development and management on canola and Brassica vegetables

A comparison of clubroot development and management on canola and Brassica vegetables

Usefulness of nonhost plants in managing Plasmodiophora brassicae

Clubroot caused by Plasmodiophora brassicae Wor.: a review of emerging serious disease of oilseed rape in the Czech Republic

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