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@article{1168322,
author = {Simon, Sibu and Kubeš, Martin and Baster, Pawel and Robert, Stéphanie and Dobrev, Petre Ivanov and Friml, Jiří and Petrášek, Jan and Zažímalová, Eva},
article_location = {Hoboken},
article_number = {4},
doi = {http://dx.doi.org/10.1111/nph.12437},
keywords = {auxin analogues; auxin signalling; auxin transport; indole 3 acetic acid (IAA); indole 3 butyric acid (IBA); naphthalene 1 acetic acid (NAA); 2.4 dichlorophenoxyacetic acid (2.4 D)},
language = {eng},
issn = {0028-646X},
journal = {New Phytologist},
title = {Defining the selectivity of processes along the auxin response chain: a study using auxin analogues},
url = {http://onlinelibrary.wiley.com/doi/10.1111/nph.12437/abstract;jsessionid=EAA0C3D7357390C89E290911E83AEF3F.f03t02},
volume = {200},
year = {2013}
}
TY - JOUR
ID - 1168322
AU - Simon, Sibu - Kubeš, Martin - Baster, Pawel - Robert, Stéphanie - Dobrev, Petre Ivanov - Friml, Jiří - Petrášek, Jan - Zažímalová, Eva
PY - 2013
TI - Defining the selectivity of processes along the auxin response chain: a study using auxin analogues
JF - New Phytologist
VL - 200
IS - 4
SP - 1034-1048
EP - 1034-1048
PB - WILEY-BLACKWELL
SN - 0028646X
KW - auxin analogues
KW - auxin signalling
KW - auxin transport
KW - indole 3 acetic acid (IAA)
KW - indole 3 butyric acid (IBA)
KW - naphthalene 1 acetic acid (NAA)
KW - 2.4 dichlorophenoxyacetic acid (2.4 D)
UR - http://onlinelibrary.wiley.com/doi/10.1111/nph.12437/abstract;jsessionid=EAA0C3D7357390C89E290911E83AEF3F.f03t02
L2 - http://onlinelibrary.wiley.com/doi/10.1111/nph.12437/abstract;jsessionid=EAA0C3D7357390C89E290911E83AEF3F.f03t02
N2 - The mode of action of auxin is based on its non-uniform distribution within tissues and organs. Despite the wide use of several auxin analogues in research and agriculture, little is known about the specificity of different auxin-related transport and signalling processes towards these compounds. Using seedlings of Arabidopsis thaliana and suspension-cultured cells of Nicotiana tabacum (BY-2), the physiological activity of several auxin analogues was investigated, together with their capacity to induce auxin-dependent gene expression, to inhibit endocytosis and to be transported across the plasma membrane. This study shows that the specificity criteria for different auxin-related processes vary widely. Notably, the special behaviour of some synthetic auxin analogues suggests that they might be useful tools in investigations of the molecular mechanism of auxin action. Thus, due to their differential stimulatory effects on DR5 expression, indole-3-propionic (IPA) and 2,4,5-trichlorophenoxy acetic (2,4,5-T) acids can serve in studies of TRANSPORT INHIBITOR RESPONSE 1/AUXIN SIGNALLING F-BOX (TIR1/AFB)-mediated auxin signalling, and 5-fluoroindole-3-acetic acid (5-F-IAA) can help to discriminate between transcriptional and non-transcriptional pathways of auxin signalling. The results demonstrate that the major determinants for the auxin-like physiological potential of a particular compound are very complex and involve its chemical and metabolic stability, its ability to distribute in tissues in a polar manner and its activity towards auxin signalling machinery.
ER -
SIMON, Sibu, Martin KUBEŠ, Pawel BASTER, Stéphanie ROBERT, Petre Ivanov DOBREV, Jiří FRIML, Jan PETRÁŠEK and Eva ZAŽÍMALOVÁ. Defining the selectivity of processes along the auxin response chain: a study using auxin analogues. \textit{New Phytologist}. Hoboken: WILEY-BLACKWELL, 2013, vol.~200, No~4, p.~1034-1048. ISSN~0028-646X. Available from: https://dx.doi.org/10.1111/nph.12437.
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