2020
Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis
MAZUR, Ewa, I. KULIK, J. HAJNY a J. FRIMLZákladní údaje
Originální název
Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis
Autoři
MAZUR, Ewa (616 Polsko, garant, domácí), I. KULIK, J. HAJNY a J. FRIML
Vydání
New Phytologist, HOBOKEN, Blackwell Science, 2020, 0028-646X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 10.151
Kód RIV
RIV/00216224:14740/20:00114748
Organizační jednotka
Středoevropský technologický institut
UT WoS
000514939700001
Klíčová slova anglicky
Arabidopsis thaliana; auxin; auxin canalization; cell polarity; PIN1; TIR1; AFB
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 10. 2024 12:44, Mgr. Adéla Pešková
Anotace
V originále
Plant survival depends on vascular tissues, which originate in a self-organizing manner as strands of cells co-directionally transporting the plant hormone auxin. The latter phenomenon (also known as auxin canalization) is classically hypothesized to be regulated by auxin itself via the effect of this hormone on the polarity of its own intercellular transport. Correlative observations supported this concept, but molecular insights remain limited. In the current study, we established an experimental system based on the model Arabidopsis thaliana, which exhibits auxin transport channels and formation of vasculature strands in response to local auxin application. Our methodology permits the genetic analysis of auxin canalization under controllable experimental conditions. By utilizing this opportunity, we confirmed the dependence of auxin canalization on a PIN-dependent auxin transport and nuclear, TIR1/AFB-mediated auxin signaling. We also show that leaf venation and auxin-mediated PIN repolarization in the root require TIR1/AFB signaling. Further studies based on this experimental system are likely to yield better understanding of the mechanisms underlying auxin transport polarization in other developmental contexts.
Návaznosti
GA13-40637S, projekt VaV |
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GA18-26981S, projekt VaV |
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90062, velká výzkumná infrastruktura |
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