Author response: Auxin efflux by PIN-FORMED proteins is activated by two different protein kinases, D6 PROTEIN KINASE and PINOID

Zourelidou, Melina; Absmanner, Birgit; Weller, Benjamin; Barbosa, Inês Cr; Willige, Björn C.; Fastner, Astrid; Streit, Verena; Port, Sarah A.; Colcombet, Jean; Bentem, Sergio de la Fuente van; Hirt, Heribert; Küster, Bernhard; Schulze, Waltraud X.; Hammes, Ulrich Z.; Schwechheimer, Claus

doi:10.7554/elife.02860.035

Cited by 11 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The influence on actin cytoskeleton from cell wall may be involved in signal transduction. It is reported that mutation in FEI1 and FEI2, two LRR type receptor-like kinase, gives rise to root swelling phenotype which is very similar to rpi1 (Xu et al, 2008). The fei1 fei2 showed significantly impaired cellulose synthesis under nonpermissive conditions compared to the wild type.…”

Section: The Role Of the Cytoskeleton In Pat And Plant Cell Morphogenmentioning

confidence: 98%

See 1 more Smart Citation

RIBOSE PHOSPHATE ISOMERSASE 1 Influences Root Development by Acting on Cell Wall Biosynthesis, Actin Organization, and Auxin Transport in Arabidopsis

et al. 2020

View full text Add to dashboard Cite

Cell wall biosynthesis plays essential roles in cell division and expansion and thus is fundamental to plant growth and development. In this work, we show that an Arabidopsis mutant dpr3, isolated by a forward genetic screen, displays embryo defects and short, swelling primary root with the failure of maintenance of root apical meristem reminiscent to several cell wall-deficient mutants. Map-based cloning identified dpr3 is a mutant allele of RIBOSE PHOSPHATE ISOMERSASE 1 (RPI1), an enzyme involved in cellulose synthesis. Cellulose content in the mutant was dramatically decreased. Moreover, dpr3 (rpi1 from hereon) caused aberrant auxin distribution, as well as defective accumulation of root master regulators PLETHORA (PLT1 and PLT2) and misexpression of auxin response factor 5 (MONOPTEROS, MP). The abnormal auxin distribution is likely due to the reduced accumulation of auxin efflux transporters PIN-FORMED (PIN1 and PIN3). Surprisingly, we found that the orientation of actin microfilaments was severely altered in rpi1 root cells, whereas the cortical microtubules stay normal. Our study provides evidence that the defects in cellulose synthesis in rpi1 affect polar auxin transport possibly connected with altered F-actin organization, which is critically important for vesicle trafficking, thus exerting effects on auxin distribution, signaling, and auxin-mediated plant development.

show abstract

Section: The Role Of the Cytoskeleton In Pat And Plant Cell Morphogenmentioning

confidence: 98%

“…The fei1 fei2 showed significantly impaired cellulose synthesis under nonpermissive conditions compared to the wild type. They thought the FEI genes may sense the cell wall integrity and then induce the signal transduction to provide a feedback signal for cell wall synthesis (Xu et al, 2008).…”

Section: The Role Of the Cytoskeleton In Pat And Plant Cell Morphogenmentioning

confidence: 99%

RIBOSE PHOSPHATE ISOMERSASE 1 Influences Root Development by Acting on Cell Wall Biosynthesis, Actin Organization, and Auxin Transport in Arabidopsis

et al. 2020

View full text Add to dashboard Cite

show abstract

“…This brings us to a developing field that has demonstrated that auxin transport depends on the activity of a subgroup of plant-specific serine/threonine kinases, the so called AGC kinases (Galvan-Ampudia and Offringa, 2007;Rademacher and Offringa, 2012). Members of the AGC kinase subclade VIII were shown to phosphorylate PINs and ABCBs on their cytoplasmic loops leading to activation of long PINs (Zourelidou et al, 2009(Zourelidou et al, , 2014Barbosa and Schwechheimer, 2014;Hammes et al, 2021). For ABCB1 and ABCB19, the activating and inhibiting effects on auxin transport by the AGCVIII kinases (PINOID and phot1), result in defects in gravitropism and phototropism (Christie et al, 2011;Henrichs et al, 2012;Christie and Murphy, 2013).…”

Section: Auxin Transporter Regulationmentioning

confidence: 99%

A Retro-Perspective on Auxin Transport

Geisler

2021

Front. Plant Sci.

View full text Add to dashboard Cite

Seeing is better than believing: visualization of membrane transport in plants

Geisler

2018

Current Opinion in Plant Biology

View full text Add to dashboard Cite

Recently, the plant transport field has shifted their research focus toward a more integrative investigation of transport networks thought to provide the basis for long-range transport routes. Substantial progress was provided by of a series of elegant techniques that allow for a visualization or prediction of substrate movements in plant tissues in contrast to established quantitative methods offering low spatial resolution. These methods are critically evaluated in respect to their spatiotemporal resolution, invasiveness, dynamics and overall quality. Current limitations of transport route predictions-based on transporter locations and transport modeling are addressed. Finally, the potential of new tools that have not yet been fully implemented into plant research is indicated.

show abstract

Author response: Auxin efflux by PIN-FORMED proteins is activated by two different protein kinases, D6 PROTEIN KINASE and PINOID

Cited by 11 publications

References 0 publications

RIBOSE PHOSPHATE ISOMERSASE 1 Influences Root Development by Acting on Cell Wall Biosynthesis, Actin Organization, and Auxin Transport in Arabidopsis

RIBOSE PHOSPHATE ISOMERSASE 1 Influences Root Development by Acting on Cell Wall Biosynthesis, Actin Organization, and Auxin Transport in Arabidopsis

A Retro-Perspective on Auxin Transport

Seeing is better than believing: visualization of membrane transport in plants

Contact Info

Product

Resources

About