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lupinus ehrenbergii/hemorragia
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Phloem bleeding from legume fruits-A technique for study of fruit nutrition.
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Bleeding from phloem of cut distal tips of attached fruits was demonstrated in the genera Spartium, Genista, Lupinus and Jacksonia. Bleeding occurred over a 2-25 min period enabling 0.5-10 μl of sap to be collected from a fruit. A detailed study of Lupinus albus L. showed that exudation rate
Translocation from leaves to fruits of a legume, studied by a phloem bleeding technique: Diurnal changes and effects of continuous darkness.
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Diurnal changes in the carbohydrates of leaf laminae and fruits and in the bleeding of sugar and amino acids from fruit phloem were followed by successive sampling from a population of Lupinus albus L. plants. Phloem sap was collected for a standard 5 min period from cut distal tips of attached
Xylem to phloem transfer of solutes in fruiting shoots of legumes, studied by a phloem bleeding technique.
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Comparisons were made of the levels of various solutes in xylem (tracheal) sap and fruit tip phloem sap of Lupinus albus (L.) and Spartium junceum (L.). Sucrose was present at high concentration (up to 220 mg ml(-1)) in phloem but was absent from xylem whereas nitrate was detected in xylem (up to
Assimilation and Transport of Nitrogen in Nonnodulated (NO(3)-grown) Lupinus albus L.
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The response of nonnodulated white lupin (Lupinus albus L. cv. Ultra) plants to a range of NO(3) levels in the rooting medium was studied by in vitro assays of extracts of plant parts for NO(3) reductase (EC 1.6.6.1) activity, measurements of NO(3)-N in plant organs, and solute analyses of root
Ion Circulation via Phloem and Xylem Between Root and Shoot of Nodulated White Lupin.
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The exchange rates of mineral cations in the xylem and phloem between root and shoot of white lupin (Lupinus albus L., cv. Ultra) were measured using nodulated plants grown in a defined liquid culture medium low in Na and lacking nitrogen. Harvests were taken at 39 and 49 days after sowing and plant
Transport of organic solutes in Phloem and xylem of a nodulated legume.
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Collections of xylem exudate of root stumps or detached nodules, and of phloem bleeding sap from stems, petioles, and fruits were made from variously aged plants of Lupinus albus L. relying on nodules for their N supply. Sucrose was the major organic solute of phloem, asparagine, glutamine, serine,
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