Diurnal Changes in Allocation of Newly Fixed Carbon in Exporting Sugar Beet Leaves

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Diurnal changes in allocation of newly fixed carbon in exporting sugar beet leaves.

Storage of newly fixed carbon as starch and sucrose follows a regular daily pattern in exporting sugar beet leaves under constant day length and level of illumination. Up to the final two hours of the light period, when starch storage declines, a nearly constant proportion of newly fixed carbon was allocated to carbohydrate storage, principally starch. Sucrose is stored only early in the light ...

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Glyphosate inhibits photosynthesis and allocation of carbon to starch in sugar beet leaves.

Application of glyphosate (N-[phosphonomethyl] glycine) to exporting leaves of sugar beet (Beta vulgaris, L.) during the day lowered stomatal conductance and carbon fixation. Allocation of newly fixed carbon to foliar starch accumulation was nearly completely inhibited, being decreased by the same amount as net carbon fixation. In contrast, decreasing net carbon fixation in untreated leaves by ...

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Sugar Beets (Beta vulgaris L. cv F58-554H1) were cultured hydroponically in growth chambers. Leaf orthophosphate (Pi) levels were varied nutritionally. The effect of decreased leaf phosphate (low-P) status was determined on the diurnal changes in the pool sizes of leaf ribulose 1,5-bisphosphate (RuBP), 3-phosphoglycerate (PGA), triose phosphate, fructose 1,6-bisphosphate, fructose-6-phosphate, ...

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Sugar transport in conducting elements of sugar beet leaves.

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ژورنال

عنوان ژورنال: Plant Physiology

سال: 1985

ISSN: 0032-0889,1532-2548

DOI: 10.1104/pp.78.4.753