Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism

The proposed hypothesis concerns the transduction of auxin molecular signals arriving from the apoplast at the plasma membrane or recognized by the proteineous receptors of the responding cell, to the concentration gradients oscillating in the supracellular space, associated usually with the specifi...

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Main Author: Tomasz J. Wodzicki
Format: Article
Language:English
Published: Polish Botanical Society 2014-01-01
Series:Acta Societatis Botanicorum Poloniae
Subjects:
Online Access:https://pbsociety.org.pl/journals/index.php/asbp/article/view/1128
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author Tomasz J. Wodzicki
author_facet Tomasz J. Wodzicki
author_sort Tomasz J. Wodzicki
collection DOAJ
description The proposed hypothesis concerns the transduction of auxin molecular signals arriving from the apoplast at the plasma membrane or recognized by the proteineous receptors of the responding cell, to the concentration gradients oscillating in the supracellular space, associated usually with the specific plant growth and differentiation. Acting as an agonist from outside the target cell auxin stimulates in this cell: (1) the liberation of auxin from the cytosolic pool of its conjugates directly into the basipetal efflux; (2) the synthesis of new auxin which restores the cytosolic reserve of auxin conjugates. The functioning of such a system may be effective in a series of processes initiated by the changing concentration of cytosolic calcium. The hypothesis suggests a molecular mechanism for the development and effective operation of the morphogenetic field in the supracellular space of the plant body, such as the field resulting from auxin waves discovered in cambium.
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spelling doaj.art-3889d15dfbf94c3392ffc8901fc5e6cc2022-12-21T19:07:57ZengPolish Botanical SocietyActa Societatis Botanicorum Poloniae2083-94802014-01-01621-2374110.5586/asbp.1993.007864Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanismTomasz J. Wodzicki0Agricultural University of WarsawThe proposed hypothesis concerns the transduction of auxin molecular signals arriving from the apoplast at the plasma membrane or recognized by the proteineous receptors of the responding cell, to the concentration gradients oscillating in the supracellular space, associated usually with the specific plant growth and differentiation. Acting as an agonist from outside the target cell auxin stimulates in this cell: (1) the liberation of auxin from the cytosolic pool of its conjugates directly into the basipetal efflux; (2) the synthesis of new auxin which restores the cytosolic reserve of auxin conjugates. The functioning of such a system may be effective in a series of processes initiated by the changing concentration of cytosolic calcium. The hypothesis suggests a molecular mechanism for the development and effective operation of the morphogenetic field in the supracellular space of the plant body, such as the field resulting from auxin waves discovered in cambium.https://pbsociety.org.pl/journals/index.php/asbp/article/view/1128auxin polar transportmorphogenetic field
spellingShingle Tomasz J. Wodzicki
Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism
Acta Societatis Botanicorum Poloniae
auxin polar transport
morphogenetic field
title Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism
title_full Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism
title_fullStr Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism
title_full_unstemmed Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism
title_short Auxin apical control of the auxin polar transport and its oscillation - a suggested cellular transduction mechanism
title_sort auxin apical control of the auxin polar transport and its oscillation a suggested cellular transduction mechanism
topic auxin polar transport
morphogenetic field
url https://pbsociety.org.pl/journals/index.php/asbp/article/view/1128
work_keys_str_mv AT tomaszjwodzicki auxinapicalcontroloftheauxinpolartransportanditsoscillationasuggestedcellulartransductionmechanism