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Cuscuta and its property to take up and to accumulate alkaloids of the host plant



Cuscuta and its property to take up and to accumulate alkaloids of the host plant



Biochemie und Physiologie der Pflanzen (BPP) 183(6): 495-501



2 alkaloid-free Cuscuta species (C. reflexa and C. platyloba) have been cultivated under definite conditions with different alkaloid containing host plants (species of the genera Atropa, Berberis, Datura, Duboisia, Lupinus, Nicotiana). The parasites take up the specific alkaloids of the host plant by its haustoria mainly via phloem and xylem. The concentration of alkaloids in Cuscuta is sometimes lower, but often higher as in the host plant. This "Cuscuta-host plant-system" has been established for further studies about the mechanism of alkaloid accumulation and to look after a system of depoisoning these cytotoxic compounds by bringing them into the vacuole (via a carrier?).

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Accession: 001790701

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