J 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

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.