THE ACTIVE ROLE OF THE HOST (VICIA FABA L.) IN THE TRANSFER OF NUTRIENT ELEMENTS FROM THE PHLOEM TO THE PARASITE (CUSCUTA SPECIES): METABOLICALLY CONTROLLED K+ AND Mg++ RELEASE TO THE FREE SPACE
作者： P. Wolswinkel
DOI: 10.1111/J.1438-8677.1975.TB01010.X
关键词: Phloem 、 Cuscuta 、 Sodium azide 、 Biochemistry 、 Potassium 、 Vicia faba 、 Efflux 、 Host (biology) 、 Biology 、 Magnesium
摘要: SUMMARY By washing out potassium and magnesium from the free space of stem segments Vicia faba, parasitised parts were shown to have an efflux pattern different that normal ones. Using graphical method compartmental analysis it could be K+ Mg++ does not occur in accordance with regularities displayed by non-parasitised known for other higher plant tissues. The process causing is apparently under metabolic control since appeared inhibited at 0°C after addition 2,4–dinitrophenol or sodium azide. The possibility discussed increased least partly caused enhanced unloading rate host phloem as was a previous study 14C-solutes.
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