J 2014

Directional Auxin Transport Mechanisms in Early Diverging Land Plants

VIAENE, T., K. LANDBERG, M. THELANDER, Eva MEDVECKÁ, E. PEDERSON et. al.

Basic information

Original name

Directional Auxin Transport Mechanisms in Early Diverging Land Plants

Authors

VIAENE, T. (56 Belgium), K. LANDBERG (752 Sweden), M. THELANDER (752 Sweden), Eva MEDVECKÁ (56 Belgium, belonging to the institution), E. PEDERSON (752 Sweden), E. FERARU (56 Belgium), E.D. COOPER (840 United States of America), M. KARIMI (56 Belgium), C.F. DELWICHE (840 United States of America), K. LJUNG (752 Sweden), M. GEISLER (756 Switzerland), E. SUNDBERG (752 Sweden) and Jiří FRIML (203 Czech Republic, guarantor, belonging to the institution)

Edition

Current Biology, Cambridge, CELL PRESS, 2014, 0960-9822

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 9.571

RIV identification code

RIV/00216224:14740/14:00079366

Organization unit

Central European Institute of Technology

UT WoS

000345808700019

Keywords in English

MOSS PHYSCOMITRELLA-PATENS; ARABIDOPSIS-THALIANA; RESISTANT MUTANTS; PIN PROTEINS; EVOLUTION; GENE; HOMEOSTASIS; ORIGINS; EFFLUX; CELLS

Tags

International impact, Reviewed
Změněno: 28/4/2015 12:26, Martina Prášilová

Abstract

V originále

The emergence and radiation of multicellular land plants was driven by crucial innovations to their body plans [1]. The directional transport of the phytohormone auxin represents a key, plant-specific mechanism for polarization and patterning in complex seed plants [2-5]. Here, we show that already in the early diverging land plant lineage, as exemplified by the moss Physcomitrella patens, auxin transport by PIN transporters is operational and diversified into ER-localized and plasma membrane-localized PIN proteins. Gain-of-function and loss-of-function analyses revealed that PIN-dependent intercellular auxin transport in Physcomitrella mediates crucial developmental transitions in tip-growing filaments and waves of polarization and differentiation in leaf-like structures. Plasma membrane PIN proteins localize in a polar manner to the tips of moss filaments, revealing an unexpected relation between polarization mechanisms in moss tip-growing cells and multicellular tissues of seed plants. Our results trace the origins of polarization and auxin-mediated patterning mechanisms and highlight the crucial role of polarized auxin transport during the evolution of multicellular land plants.