TY - JOUR
T1 - The lazy mutation in rice affects a step between statoliths and gravity-induced lateral auxin transport
AU - Godbolé, R.
AU - Takahashi, H.
AU - Hertel, R.
PY - 1999/6
Y1 - 1999/6
N2 - Compared to wild type, the lazy mutant in Oryza sativa L. shows a reduced gravitropic response. In order to locate the lesion in the stimulus-response chain, coleoptile segments of lazy rice were investigated with respect to auxin transport, Gravity-induced lateral movement of radiolabelled indoleacetic acid (IAA) was strongly inhibited by the lazy mutation compared to wild type while uptake and longitudinal transport of IAA, as well as amyloplast sedimentation, were not significantly affected. These findings suggest that LAZY controls a step in the signalling chain between statoliths and auxin secretion.
AB - Compared to wild type, the lazy mutant in Oryza sativa L. shows a reduced gravitropic response. In order to locate the lesion in the stimulus-response chain, coleoptile segments of lazy rice were investigated with respect to auxin transport, Gravity-induced lateral movement of radiolabelled indoleacetic acid (IAA) was strongly inhibited by the lazy mutation compared to wild type while uptake and longitudinal transport of IAA, as well as amyloplast sedimentation, were not significantly affected. These findings suggest that LAZY controls a step in the signalling chain between statoliths and auxin secretion.
KW - Auxin lateral transport
KW - Gravitropism
KW - Lazy mutation
KW - Oryza
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U2 - 10.1111/j.1438-8677.1999.tb00719.x
DO - 10.1111/j.1438-8677.1999.tb00719.x
M3 - Article
AN - SCOPUS:0032789665
VL - 1
SP - 379
EP - 381
JO - Berichte der Deutschen Botanischen Gesellschaft
JF - Berichte der Deutschen Botanischen Gesellschaft
SN - 1435-8603
IS - 4
ER -