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