2012
ER-localized auxin transporter PIN8 regulates auxin homeostasis and male gametophyte development in Arabidopsis
DING, Zhaojun; Bangjun WANG; Ignacio MORENO; Nikoleta DUPLAKOVA; Sibu SIMON et. al.Základní údaje
Originální název
ER-localized auxin transporter PIN8 regulates auxin homeostasis and male gametophyte development in Arabidopsis
Autoři
DING, Zhaojun; Bangjun WANG; Ignacio MORENO; Nikoleta DUPLAKOVA; Sibu SIMON; Nicola CARRARO; Jesica REEMMER; Ales PENCIK; Xu CHEN; Ricardo TEJOS; Petr SKUPA; Stephan POLLMANN; Jozef MRAVEC; Jan PETRASEK; Eva ZAŽÍMALOVÁ; David HONYS; Jakub ROLCIK; Angus MURPHY; Ariel ORELLANA; Markus GEISLER a Jiří FRIML
Vydání
NATURE COMMUNICATIONS, LONDON, NATURE PUBLISHING GROUP, 2012, 2041-1723
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: 10.015
Kód RIV
RIV/00216224:14740/12:00064713
Organizační jednotka
Středoevropský technologický institut
UT WoS
000306995000013
Klíčová slova anglicky
PLANT DEVELOPMENT; ENDOPLASMIC-RETICULUM; POLLEN GERMINATION; UDP-GLUCOSE; THALIANA; EFFLUX; BIOSYNTHESIS; EXPRESSION; GRADIENTS; MEMBRANE
Změněno: 12. 4. 2013 03:26, Olga Křížová
Anotace
V originále
Auxin is a key coordinative signal required for many aspects of plant development and its levels are controlled by auxin metabolism and intercellular auxin transport. Here we find that a member of PIN auxin transporter family, PIN8 is expressed in male gametophyte of Arabidopsis thaliana and has a crucial role in pollen development and functionality. Ectopic expression in sporophytic tissues establishes a role of PIN8 in regulating auxin homoeostasis and metabolism. PIN8 co-localizes with PIN5 to the endoplasmic reticulum (ER) where it acts as an auxin transporter. Genetic analyses reveal an antagonistic action of PIN5 and PIN8 in the regulation of intracellular auxin homoeostasis and gametophyte as well as sporophyte development. Our results reveal a role of the auxin transport in male gametophyte development in which the distinct actions of ER-localized PIN transporters regulate cellular auxin homoeostasis and maintain the auxin levels optimal for pollen development and pollen tube growth.
Návaznosti
| ED1.1.00/02.0068, projekt VaV |
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| EE2.3.20.0043, projekt VaV |
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| LC06034, projekt VaV |
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