Auxin canalization and vascular tissue formation by
TIR1/AFB-mediated auxin signaling in Arabidopsis

J 2020

Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis

MAZUR, Ewa, I. KULIK, J. HAJNY and J. FRIML

Basic information

Original name

Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis

Authors

MAZUR, Ewa (616 Poland, guarantor, belonging to the institution), I. KULIK, J. HAJNY and J. FRIML

Edition

New Phytologist, HOBOKEN, Blackwell Science, 2020, 0028-646X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 10.151

RIV identification code

RIV/00216224:14740/20:00114748

Organization unit

Central European Institute of Technology

DOI

http://dx.doi.org/10.1111/nph.16446

UT WoS

000514939700001

Keywords in English

Arabidopsis thaliana; auxin; auxin canalization; cell polarity; PIN1; TIR1; AFB

Abstract

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.

Links

GA13-40637S, research and development project

Name: Genetické studie k identifikaci molekulárních mechanizmů buněčné polarity a auxinového transportu v rostlinách

Investor: Czech Science Foundation

GA18-26981S, research and development project

Name: Genetické studie k objasnění molekulárního mechanizmu účinku strigolaktonů v kořeni

Investor: Czech Science Foundation

90062, large research infrastructures

Name: Czech-BioImaging

Citovat

MAZUR, Ewa, I. KULIK, J. HAJNY and J. FRIML. Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis. New Phytologist. HOBOKEN: Blackwell Science, 2020, vol. 226, No 5, p. 1375-1383. ISSN 0028-646X. Available from: https://dx.doi.org/10.1111/nph.16446.

@article{1744940,
   author = {Mazur, Ewa and Kulik, I. and Hajny, J. and Friml, J.},
   article_location = {HOBOKEN},
   article_number = {5},
   doi = {http://dx.doi.org/10.1111/nph.16446},
   keywords = {Arabidopsis thaliana; auxin; auxin canalization; cell polarity; PIN1; TIR1; AFB},
   language = {eng},
   issn = {0028-646X},
   journal = {New Phytologist},
   title = {Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis},
   url = {https://nph.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/nph.16446},
   volume = {226},
   year = {2020}
}

TY  - JOUR
ID  - 1744940
AU  - Mazur, Ewa - Kulik, I. - Hajny, J. - Friml, J.
PY  - 2020
TI  - Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis
JF  - New Phytologist
VL  - 226
IS  - 5
SP  - 1375-1383
EP  - 1375-1383
PB  - Blackwell Science
SN  - 0028646X
KW  - Arabidopsis thaliana
KW  - auxin
KW  - auxin canalization
KW  - cell polarity
KW  - PIN1
KW  - TIR1
KW  - AFB
UR  - https://nph.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/nph.16446
N2  - 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.
ER  -

MAZUR, Ewa, I. KULIK, J. HAJNY and J. FRIML. Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin signaling in Arabidopsis. \textit{New Phytologist}. HOBOKEN: Blackwell Science, 2020, vol.~226, No~5, p.~1375-1383. ISSN~0028-646X. Available from: https://dx.doi.org/10.1111/nph.16446.

Detailed Information on Publication Record