Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions

The aim of this work was to investigate the effect of environmental conditions on the control of source to sink carbon flux in potato during tuberization. Top down metabolic control analysis was used to quantitatively determine the extent to which source and sink reactions control the flux from CO2...

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Main Authors: Sweetlove, L, Hill, SA
Format: Journal article
Language:English
Published: 2000
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author Sweetlove, L
Hill, SA
author_facet Sweetlove, L
Hill, SA
author_sort Sweetlove, L
collection OXFORD
description The aim of this work was to investigate the effect of environmental conditions on the control of source to sink carbon flux in potato during tuberization. Top down metabolic control analysis was used to quantitatively determine the extent to which source and sink reactions control the flux from CO2 to the tuber. Under all conditions investigated (beginning of the dark period, low nitrogen availability, variation in temperature) source metabolism accounts for at least 80% of the control. In plants grown with limiting nitrogen, or when measurements were made at low temperature the extent to which source metabolism controls flux increased to 90%.
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spelling oxford-uuid:ca852513-f532-47c9-8ab0-3b3cdf779d2a2022-03-27T07:08:02ZSource metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ca852513-f532-47c9-8ab0-3b3cdf779d2aEnglishSymplectic Elements at Oxford2000Sweetlove, LHill, SAThe aim of this work was to investigate the effect of environmental conditions on the control of source to sink carbon flux in potato during tuberization. Top down metabolic control analysis was used to quantitatively determine the extent to which source and sink reactions control the flux from CO2 to the tuber. Under all conditions investigated (beginning of the dark period, low nitrogen availability, variation in temperature) source metabolism accounts for at least 80% of the control. In plants grown with limiting nitrogen, or when measurements were made at low temperature the extent to which source metabolism controls flux increased to 90%.
spellingShingle Sweetlove, L
Hill, SA
Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
title Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
title_full Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
title_fullStr Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
title_full_unstemmed Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
title_short Source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
title_sort source metabolism dominates the control of source to sink carbon flux in tuberizing potato plants throughout the diurnal cycle and under a range of environmental conditions
work_keys_str_mv AT sweetlovel sourcemetabolismdominatesthecontrolofsourcetosinkcarbonfluxintuberizingpotatoplantsthroughoutthediurnalcycleandunderarangeofenvironmentalconditions
AT hillsa sourcemetabolismdominatesthecontrolofsourcetosinkcarbonfluxintuberizingpotatoplantsthroughoutthediurnalcycleandunderarangeofenvironmentalconditions