Detailed Information on Publication Record
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
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.