Unexpected fast development of branched broomrape on slow-growing Brassicaceae

Gibot‐Leclerc, Stéphanie; Reibel, Carole; Corre, Valérie Le; Dessaint, Fabrice

doi:10.1007/s13593-014-0217-6

Cited by 8 publications

(7 citation statements)

References 18 publications

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“…All Brassicaceae weed species induced germination regardless of the pathovar studied. This confirms previous studies showing that Brassicaceae weeds may be important secondary hosts for P. ramosa (Boulet et al ., ; Gibot‐Leclerc et al ., ). While Brassicaceae weeds are most common within oilseed rape fields, many also occur within other arable crops, especially winter cereals (Fried et al ., ).…”

Section: Discussionmentioning

confidence: 97%

“…Among these weeds, numerous Brassicaceae are known to be both infected by P. ramosa and be the most abundant weeds within winter oilseed rape fields, as herbicides selective for oilseed rape have a lower efficacy on these closely related species (Fried et al ., ). Moreover, we recently demonstrated that P. ramosa is able to rapidly complete its life cycle on several of these Brassicaceae weeds (Gibot‐Leclerc et al ., ). Consequently, more attention should be paid to the role of Brassicaceae weeds as alternative hosts and to their impact on the demography of P. ramosa (Gibot‐Leclerc et al ., ).…”

Section: Introductionmentioning

confidence: 97%

“…Moreover, we recently demonstrated that P. ramosa is able to rapidly complete its life cycle on several of these Brassicaceae weeds (Gibot‐Leclerc et al ., ). Consequently, more attention should be paid to the role of Brassicaceae weeds as alternative hosts and to their impact on the demography of P. ramosa (Gibot‐Leclerc et al ., ).…”

Section: Introductionmentioning

confidence: 97%

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Assessment of phylogenetic signal in the germination ability of Phelipanche ramosa on Brassicaceae hosts

et al. 2016

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Phelipanche ramosa is a generalist parasitic weed known to cause yield losses in various crops, especially in winter oilseed rape, its new preferred host in France. This parasitic plant is also able to complete its life cycle on many Brassicaceae weeds, which are thus important alternative hosts. We studied a set of 14 common Brassicaceae weeds and characterised their ability to induce the germination of three genetically distinct pathovars of P. ramosa, based on in vitro experiments. We then investigated whether phylogenetic relatedness among Brassicaceae weeds could inform on their ability to induce germination of P. ramosa by testing for a phylogenetic signal in the germination rate of the parasite. In the presence of some phylogenetic signal, phylogenetic distances among species might be used as a surrogate to predict the ability to induce germination of potential additional Brassicaceae hosts. The three pathovars studied showed different germination patterns. Moreover, we found substantial variation in the germination rate of P. ramosa among the different Brassicaceae species, with a significant effect of the clustering of species into two ancient phylogenetic lineages. However, no significant phylogenetic signal was detected overall, that is we could not exclude that germination rates were randomly distributed over the phylogeny. We suggest that further analyses should be conducted across wider sets of potential hosts to better characterise the existence of a phylogenetic signal of the ability of weeds to induce the germination of P. ramosa.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

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Assessment of phylogenetic signal in the germination ability of Phelipanche ramosa on Brassicaceae hosts

et al. 2016

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“…3 Broomrape-host plant interactions However, each broomrape species has its specific host range (Table 2). For example, P. aegyptiaca and P. ramosa have broad host ranges within different Brassicaceae, Cannabaceae, Cucurbitaceae, Fabaceae, and Solanaceae (Brault et al 2007;Parker 2009;Gibot-Leclerc et al 2015). Conversely, O. cumana is an obligate parasite of the one sunflower species (Rubiales 2018).…”

Section: Parasitic Weeds In Agriculturementioning

confidence: 99%

Main drivers of broomrape regulation. A review

Cartry

Steinberg

Gibot‐Leclerc

2021

Agron. Sustain. Dev.

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Orobanchaceae-broomrapes-are a family of parasitic plants that represent an ecological and agronomic challenge because some of them cause significant damage to many monocots or dicots. Weedy broomrapes infest different crops in the Mediterranean basin, leading to substantial yield losses. Besides, they quickly adapt to new host plants, so that new crops are more and more under threat. Control methods are lacking because as plant parasites they cannot be considered as a common weed in agriculture. It is therefore important to characterize the main drivers of their regulation to identify sustainable management strategies.We reviewed all the possible interactions of Orobanchaceae species with surrounding organisms in an agricultural landscape, with a focus on the Orobanche and Phelipanche genera. Our main findings are that (1) broomrapes successfully co-evolve with their host through tight interactions ranging from the molecular to the tissue level, resulting in a unique strategy in their interactions with their host; (2) broomrapes have to face natural regulatory mechanisms such as host plant defenses, allelopathic interferences, and pest attacks from both the rhizosphere and phyllosphere; (3) alternative methods combining these natural mechanisms with existing conventional methods should be used to control broomrape. Conventional methods have shown limited results with parasitic weeds. By considering their life cycle and biotic and abiotic environment, management methods will target their weak point(s). Combining different control methods needs to be considered in an integrated weed management system. Furthermore, future studies on biocontrol will bring out new products to be used in addition to cultural techniques. Modeling approaches would help predict the evolution of broomrape-infested plots and the available potential management strategies.

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“…Little host-differentiation has been reported for them. P. ramosa is nowadays becoming increasingly important in Central Europe on winter oilseed rape (Gibot-Leclerc et al 2014), driving to specialization, with new populations adapted to oilseed rape differing in virulence compared with the tomato, hemp or tobacco ones (Stojanova et al 2019). Host specificity has also been suggested for O. minor (Thorogood et al 2009), with host driven selection leading to speciation.…”

Section: Specialization Following Host-switchingmentioning

confidence: 99%

Broomrape Threat to Agriculture

Rubiales¹

2020

outlook pest man

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The broomrapes are plants that have modified their biology to feed on roots of other plants, emerging above the soil only to flower. There are about 150 broomrape species, most of which infect wild plants in natural habitats without causing economic problems. However, a few of them have adapted to agricultural ecosystems becoming troublesome root parasitic weeds. The most damaging ones are Orobanche cernua, O. crenata, O. cumana, O. minor, Phelipanche aegyptiaca and P. ramosa all of which severely constrain important dicot crops in Africa, Asia, and Europe. They are continuously extending to new areas, showing an ability to evolve thereby enlarging their host ranges, adapting to new areas and overcoming resistances introduced by the breeder. As flowering plants disseminated by seeds, broomrape distribution and management (containment, sanitation, cultural practices, and biological and chemical control) fall under the purview of weed science. However, broomrapes differ from standard weeds as they behave as pathogens that attach to host roots to feed on them. As for any other disease, the host plants might protect themselves by defence mechanisms that can be selected by plant breeders to develop resistant cultivars. In spite of these efforts, rather than being contained, the broomrape threat is increasing, not only extending to new suitable areas but also adapting genetically to infect new crops and to increase virulence.

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Unexpected fast development of branched broomrape on slow-growing Brassicaceae

Cited by 8 publications

References 18 publications

Assessment of phylogenetic signal in the germination ability of Phelipanche ramosa on Brassicaceae hosts

Assessment of phylogenetic signal in the germination ability of Phelipanche ramosa on Brassicaceae hosts

Main drivers of broomrape regulation. A review

Broomrape Threat to Agriculture

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