Intracellular auxin transport (Arabidopsis thaliana)
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Description
In addition to the PIN family proteins that are mainly involved in the intercellular Autin transport via the Auxin Polar Transport pathway (WP2941) mediated by PIN proteins located on the plasmamembrane, the Arabidopsis PIN family members PIN5, PIN6 and PIN8 are located on the endoplasmic reticulum membrane/envelope. PIN6 is also likely co-located with the nuclear membrane. According to Sawchuk MG et al. (2013) PIN5, PIN6 and PIN8 play roles in leaf vein patterning. PIN5 and PIN8 play an antagonistic role in regulating the intercellular auxin transport as well as in gametophyte (pollen) and sporophyte development.
Not much is known about the direction of auxin flow mediated by the PILS. However, they help in increasing the free auxin amount in the cytoplasm.
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Ontology Terms
Bibliography
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- Barbez E, Kubeš M, Rolčík J, Béziat C, Pěnčík A, Wang B, Rosquete MR, Zhu J, Dobrev PI, Lee Y, Zažímalovà E, Petrášek J, Geisler M, Friml J, Kleine-Vehn J; ''A novel putative auxin carrier family regulates intracellular auxin homeostasis in plants.''; Nature, 2012 PubMed Europe PMC Scholia
- Ding Z, Wang B, Moreno I, Dupláková N, Simon S, Carraro N, Reemmer J, Pěnčík A, Chen X, Tejos R, Skůpa P, Pollmann S, Mravec J, Petrášek J, Zažímalová E, Honys D, Rolčík J, Murphy A, Orellana A, Geisler M, Friml J; ''ER-localized auxin transporter PIN8 regulates auxin homeostasis and male gametophyte development in Arabidopsis.''; Nat Commun, 2012 PubMed Europe PMC Scholia
- Bender RL, Fekete ML, Klinkenberg PM, Hampton M, Bauer B, Malecha M, Lindgren K, A Maki J, Perera MA, Nikolau BJ, Carter CJ; ''PIN6 is required for nectary auxin response and short stamen development.''; Plant J, 2013 PubMed Europe PMC Scholia
- Bennett T; ''PIN proteins and the evolution of plant development.''; Trends Plant Sci, 2015 PubMed Europe PMC Scholia
- Mravec J, Skůpa P, Bailly A, Hoyerová K, Krecek P, Bielach A, Petrásek J, Zhang J, Gaykova V, Stierhof YD, Dobrev PI, Schwarzerová K, Rolcík J, Seifertová D, Luschnig C, Benková E, Zazímalová E, Geisler M, Friml J; ''Subcellular homeostasis of phytohormone auxin is mediated by the ER-localized PIN5 transporter.''; Nature, 2009 PubMed Europe PMC Scholia
- Sawchuk MG, Edgar A, Scarpella E; ''Patterning of leaf vein networks by convergent auxin transport pathways.''; PLoS Genet, 2013 PubMed Europe PMC Scholia
History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
IAA | Metabolite | CHEBI:16411 (ChEBI) | |
PILS1 | GeneProduct | AT1G20925 (Ensembl) | |
PILS2 | GeneProduct | AT1G71090 (Ensembl) | |
PILS3 | GeneProduct | AT1G76520 (Ensembl) | |
PILS4 | GeneProduct | AT1G76530 (Ensembl) | |
PILS5 | GeneProduct | AT2G17500 (Ensembl) | |
PILS6 | GeneProduct | AT5G01990 (Ensembl) | |
PILS7 | GeneProduct | AT5G65980 (Ensembl) | |
PIN5 | Protein | AT5G16530 (Ensembl) | |
PIN6 | Protein | AT1G77110 (Ensembl) | |
PIN8 | Protein | AT5G15100 (Ensembl) |
Annotated Interactions
No annotated interactions