Orobanche also threatens a wide range of important crops, including peas, chickpeas, tomatoes, carrots, lettuce, and varieties of the genus Brassica (e.g. Crenate broomrape (Orobanche crenata) infection in field pea cultivars. minor Santapau [family OROBANCHACEAE] The seeds of parasitic plants of the genera Striga and Orobanche will only germinate after induction by a chemical signal exuded from the roots of their host. and broomrape (Orobanche spp. Up to now, several of these germination stimulants have been isolated and identified in the root exudates of a series of host plants of both Orobanche and Striga spp. Sawafta MS. 2012. yellowing and necrosis of the foliage, general weakening of the plant and reduced fruit production (CAB International, 2014). Selective control of Egyptian broomrape (Orobanche aetyptiaca Pers.) Crop Protection 22, 865 – 872. do not have the same subtle physiological effects on their hosts as Striga spp. And indeed, holoparasites in the genus Orobanche are well-known pathogens of a variety of crops. Indeed, it has been hypothesized that Striga hermonthica coevolved with wild relatives of Sorghum (Mohamed et al. South American Fruit fly 2. Timko MP, Flore CS, Riopel JL, 1989. The seeds of parasitic plants of the genera Striga and Orobanche will only germinate after induction by a chemical signal exuded from the roots of their host. [family SCROPHULARIACEAE] Paratype of Striga gesneroides Vatke var. Royal Tropical Institute. by glyphosate and its amino acid status in relation to selected hosts. 1996) and the current pathogenic strain of the species has only emerged following domestication of … 2003. but damage the host via diversion of a substantial proportion of host resources, such that yield losses can be over 50% in Malta and Turkey and over 30% in Egypt. Intuitively, it seems like the most serious parasitic weeds would be holoparasites. A simple and rapid analytical method for strigolactones, germination stimulants for the root parasitic weeds witchweed (Striga spp.) Mediterranean fruit fly 4. Striga orobanchoides Benth. Nandula, V. K. 1998. But in Africa, the most serious parasitic weeds are the witchweeds, which are obligate hemiparasites in the genus Striga. In: Pieterse AH, Verkleij JAC, ter Borg SJ, eds, Biology and management of Orobanche. Up to now, several of these germination stimulants have been isolated and identified in the root exudates of a series of host plants of both Orobanche and Striga spp. ), has been developed using high-performance liquid chromatography connected to tandem mass spectrometry (LC/MS/MS). Queensland fruit fly ... Striga hermonthica (Del.) In most cases, the compounds were shown to be isoprenoid and … Mexico fruit fly 3. Proceedings of the third international workshop on Orobanche and related Striga research, Amsterdam, Netherlands, 8-12 November 1993. Annual Review of phytopathology 18, 463 – 489. The biology of Striga, Orobanche, and other root-parasitic weeds. Striga can infest both grasses and grains, including corn, rice and Sorghum, undoubtedly some of the most important food crops. Orobanche minor in the Netherlands: an agricultural problem became an endangered species. Orobanche spp. Rubiales D, Pérez-de-Luque A, Cubero JI, Sillero JC. of Orobanche. Orobanche ramosa L. Orobanche aegyptiaca Pers. 8 Striga and Orobanche each have species highly adapted to agricultural habitats. Bentham Striga ... Orobanche crenata Forskal Orobanche cernua Loefl. cabbage and broccoli). Proceedings of the third international workshop on Orobanche and related Striga research, Amsterdam, Netherlands, November 1993, 614-618. Jl, 1989 of phytopathology 18, 463 – 489 be holoparasites Orobanche... 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