2014
Directional Auxin Transport Mechanisms in Early Diverging Land Plants
VIAENE, T.; K. LANDBERG; M. THELANDER; Eva MEDVECKÁ; E. PEDERSON et al.Základní údaje
Originální název
Directional Auxin Transport Mechanisms in Early Diverging Land Plants
Autoři
VIAENE, T.; K. LANDBERG; M. THELANDER; Eva MEDVECKÁ; E. PEDERSON; E. FERARU; E.D. COOPER; M. KARIMI; C.F. DELWICHE; K. LJUNG; M. GEISLER; E. SUNDBERG a Jiří FRIML
Vydání
Current Biology, Cambridge, CELL PRESS, 2014, 0960-9822
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 9.571
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/14:00079366
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
MOSS PHYSCOMITRELLA-PATENS; ARABIDOPSIS-THALIANA; RESISTANT MUTANTS; PIN PROTEINS; EVOLUTION; GENE; HOMEOSTASIS; ORIGINS; EFFLUX; CELLS
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 4. 2015 12:26, Martina Prášilová
Anotace
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.