Cytokinin treated microcalli of Phelipanche ramosa: an efficient model for studying haustorium formation in holoparasitic plants

Billard, Estelle; Goyet, Vincent; Delavault, Philippe; Simier, Philippe; Montiel, Grégory

doi:10.1007/s11240-020-01813-6

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…Very little information is available on the aerial phase of broomrape because successful infestation relies on haustorium formation which is the beginning of the parasitic stage. This step is actually triggered by a cytokinin signal in the rhizosphere (Goyet et al 2017;Billard et al 2020). For example, P. ramosa has specific receptors to rapeseed cytokinins to induce haustorium formation.…”

Section: Specificity Of the Interactions With The Host Plantmentioning

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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Section: Specificity Of the Interactions With The Host Plantmentioning

confidence: 99%

Main drivers of broomrape regulation. A review

Cartry

Steinberg

Gibot‐Leclerc

2021

Agron. Sustain. Dev.

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“…Seeds that germinate a distance longer than 4 mm lose their polarity and exhaust their viability before they can reach the host and therefore such chemotropism would be an advantageous mechanism [38,39]. Although the seedling viability rapidly expires in the soil or in rhizotron experiments, they can be grown on media culture to produce root cultures and regenerate flowering plants [40][41][42][43] (Figure 3). Cuscuta seedling viability expires without a host in 3 to 7 weeks depending on the photosynthetic activity of each Cuscuta species [44].…”

Section: Host-tropic Growthmentioning

confidence: 99%

Management of Infection by Parasitic Weeds: A Review

Fernández‐Aparicio

Delavault

Timko

2020

Plants

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Parasitic plants rely on neighboring host plants to complete their life cycle, forming vascular connections through which they withdraw needed nutritive resources. In natural ecosystems, parasitic plants form one component of the plant community and parasitism contributes to overall community balance. In contrast, when parasitic plants become established in low biodiversified agroecosystems, their persistence causes tremendous yield losses rendering agricultural lands uncultivable. The control of parasitic weeds is challenging because there are few sources of crop resistance and it is difficult to apply controlling methods selective enough to kill the weeds without damaging the crop to which they are physically and biochemically attached. The management of parasitic weeds is also hindered by their high fecundity, dispersal efficiency, persistent seedbank, and rapid responses to changes in agricultural practices, which allow them to adapt to new hosts and manifest increased aggressiveness against new resistant cultivars. New understanding of the physiological and molecular mechanisms behind the processes of germination and haustorium development, and behind the crop resistant response, in addition to the discovery of new targets for herbicides and bioherbicides will guide researchers on the design of modern agricultural strategies for more effective, durable, and health compatible parasitic weed control.

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