---
_id: '428'
abstract:
- lang: eng
text: The plant hormone gibberellic acid (GA) is a crucial regulator of growth and
development. The main paradigm of GA signaling puts forward transcriptional regulation
via the degradation of DELLA transcriptional repressors. GA has also been shown
to regulate tropic responses by modulation of the plasma membrane incidence of
PIN auxin transporters by an unclear mechanism. Here we uncovered the cellular
and molecular mechanisms by which GA redirects protein trafficking and thus regulates
cell surface functionality. Photoconvertible reporters revealed that GA balances
the protein traffic between the vacuole degradation route and recycling back to
the cell surface. Low GA levels promote vacuolar delivery and degradation of multiple
cargos, including PIN proteins, whereas high GA levels promote their recycling
to the plasma membrane. This GA effect requires components of the retromer complex,
such as Sorting Nexin 1 (SNX1) and its interacting, microtubule (MT)-associated
protein, the Cytoplasmic Linker-Associated Protein (CLASP1). Accordingly, GA regulates
the subcellular distribution of SNX1 and CLASP1, and the intact MT cytoskeleton
is essential for the GA effect on trafficking. This GA cellular action occurs
through DELLA proteins that regulate the MT and retromer presumably via their
interaction partners Prefoldins (PFDs). Our study identified a branching of the
GA signaling pathway at the level of DELLA proteins, which, in parallel to regulating
transcription, also target by a nontranscriptional mechanism the retromer complex
acting at the intersection of the degradation and recycling trafficking routes.
By this mechanism, GA can redirect receptors and transporters to the cell surface,
thus coregulating multiple processes, including PIN-dependent auxin fluxes during
tropic responses.
acknowledgement: "We gratefully acknowledge M. Blázquez (Instituto de Biología Molecular
y Celular de Plantas), M. Fendrych, C. Cuesta Moliner (Institute of Science and
Technology Austria), M. Vanstraelen, M. Nowack (Center for Plant Systems Biology,
Ghent), C. Luschnig (Universitat fur Bodenkultur Wien, Vienna), S. Simon (Central
European Institute of Technology, Brno), C. Sommerville (Carnegie Institution for
Science), and Y. Gu (Penn State University) for making available the materials used
in this study;\r\n...funding from the European Research Council (ERC) under the
European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC Grant Agreement
282300.\r\nCC BY NC ND"
article_processing_charge: No
author:
- first_name: Yuliya
full_name: Salanenka, Yuliya
id: 46DAAE7E-F248-11E8-B48F-1D18A9856A87
last_name: Salanenka
- first_name: Inge
full_name: Verstraeten, Inge
id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
last_name: Verstraeten
orcid: 0000-0001-7241-2328
- first_name: Christian
full_name: Löfke, Christian
last_name: Löfke
- first_name: Kaori
full_name: Tabata, Kaori
id: 7DAAEDA4-02D0-11E9-B11A-A5A4D7DFFFD0
last_name: Tabata
- first_name: Satoshi
full_name: Naramoto, Satoshi
last_name: Naramoto
- first_name: Matous
full_name: Glanc, Matous
id: 1AE1EA24-02D0-11E9-9BAA-DAF4881429F2
last_name: Glanc
orcid: 0000-0003-0619-7783
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Salanenka Y, Verstraeten I, Löfke C, et al. Gibberellin DELLA signaling targets
the retromer complex to redirect protein trafficking to the plasma membrane. PNAS.
2018;115(14):3716-3721. doi:10.1073/pnas.1721760115
apa: Salanenka, Y., Verstraeten, I., Löfke, C., Tabata, K., Naramoto, S., Glanc,
M., & Friml, J. (2018). Gibberellin DELLA signaling targets the retromer complex
to redirect protein trafficking to the plasma membrane. PNAS. National
Academy of Sciences. https://doi.org/10.1073/pnas.1721760115
chicago: Salanenka, Yuliya, Inge Verstraeten, Christian Löfke, Kaori Tabata, Satoshi
Naramoto, Matous Glanc, and Jiří Friml. “Gibberellin DELLA Signaling Targets the
Retromer Complex to Redirect Protein Trafficking to the Plasma Membrane.” PNAS.
National Academy of Sciences, 2018. https://doi.org/10.1073/pnas.1721760115.
ieee: Y. Salanenka et al., “Gibberellin DELLA signaling targets the retromer
complex to redirect protein trafficking to the plasma membrane,” PNAS,
vol. 115, no. 14. National Academy of Sciences, pp. 3716–3721, 2018.
ista: Salanenka Y, Verstraeten I, Löfke C, Tabata K, Naramoto S, Glanc M, Friml
J. 2018. Gibberellin DELLA signaling targets the retromer complex to redirect
protein trafficking to the plasma membrane. PNAS. 115(14), 3716–3721.
mla: Salanenka, Yuliya, et al. “Gibberellin DELLA Signaling Targets the Retromer
Complex to Redirect Protein Trafficking to the Plasma Membrane.” PNAS,
vol. 115, no. 14, National Academy of Sciences, 2018, pp. 3716–21, doi:10.1073/pnas.1721760115.
short: Y. Salanenka, I. Verstraeten, C. Löfke, K. Tabata, S. Naramoto, M. Glanc,
J. Friml, PNAS 115 (2018) 3716–3721.
date_created: 2018-12-11T11:46:25Z
date_published: 2018-04-03T00:00:00Z
date_updated: 2023-09-11T14:06:34Z
day: '03'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1073/pnas.1721760115
ec_funded: 1
external_id:
isi:
- '000429012500073'
file:
- access_level: open_access
checksum: 1fcf7223fb8f99559cfa80bd6f24ce44
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T12:30:14Z
date_updated: 2020-07-14T12:46:26Z
file_id: '5700'
file_name: 2018_PNAS_Salanenka.pdf
file_size: 1924101
relation: main_file
file_date_updated: 2020-07-14T12:46:26Z
has_accepted_license: '1'
intvolume: ' 115'
isi: 1
issue: '14'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: ' 3716 - 3721'
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '7395'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Gibberellin DELLA signaling targets the retromer complex to redirect protein
trafficking to the plasma membrane
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 115
year: '2018'
...
---
_id: '280'
abstract:
- lang: eng
text: Flowers have a species-specific functional life span that determines the time
window in which pollination, fertilization and seed set can occur. The stigma
tissue plays a key role in flower receptivity by intercepting pollen and initiating
pollen tube growth toward the ovary. In this article, we show that a developmentally
controlled cell death programme terminates the functional life span of stigma
cells in Arabidopsis. We identified the leaf senescence regulator ORESARA1 (also
known as ANAC092) and the previously uncharacterized KIRA1 (also known as ANAC074)
as partially redundant transcription factors that modulate stigma longevity by
controlling the expression of programmed cell death-associated genes. KIRA1 expression
is sufficient to induce cell death and terminate floral receptivity, whereas lack
of both KIRA1 and ORESARA1 substantially increases stigma life span. Surprisingly,
the extension of stigma longevity is accompanied by only a moderate extension
of flower receptivity, suggesting that additional processes participate in the
control of the flower's receptive life span.
acknowledgement: We gratefully acknowledge funding from the Chinese Scholarship Council
(CSC; project number 201206910025 to Z.G.), the Fonds Wetenschappelijk Onderzoek
(FWO; project number G005112N to A.D.; fellowship number 12I7417N to Z.L.), the
Belgian Federal Science Policy Office (BELSPO; to Y.S.), the Agency for Innovation
by Science and Technology of Belgium (IWT; fellowship number 121110 to M.V.D.),
the Hercules foundation (grant AUGE-09-029 to K.D.), and the ERC StG PROCELLDEATH
(project number 639234 to M.K.N.).
article_processing_charge: No
author:
- first_name: Zhen
full_name: Gao, Zhen
last_name: Gao
- first_name: Anna
full_name: Daneva, Anna
last_name: Daneva
- first_name: Yuliya
full_name: Salanenka, Yuliya
id: 46DAAE7E-F248-11E8-B48F-1D18A9856A87
last_name: Salanenka
- first_name: Matthias
full_name: Van Durme, Matthias
last_name: Van Durme
- first_name: Marlies
full_name: Huysmans, Marlies
last_name: Huysmans
- first_name: Zongcheng
full_name: Lin, Zongcheng
last_name: Lin
- first_name: Freya
full_name: De Winter, Freya
last_name: De Winter
- first_name: Steffen
full_name: Vanneste, Steffen
last_name: Vanneste
- first_name: Mansour
full_name: Karimi, Mansour
last_name: Karimi
- first_name: Jan
full_name: Van De Velde, Jan
last_name: Van De Velde
- first_name: Klaas
full_name: Vandepoele, Klaas
last_name: Vandepoele
- first_name: Davy
full_name: Van De Walle, Davy
last_name: Van De Walle
- first_name: Koen
full_name: Dewettinck, Koen
last_name: Dewettinck
- first_name: Bart
full_name: Lambrecht, Bart
last_name: Lambrecht
- first_name: Moritz
full_name: Nowack, Moritz
last_name: Nowack
citation:
ama: Gao Z, Daneva A, Salanenka Y, et al. KIRA1 and ORESARA1 terminate flower receptivity
by promoting cell death in the stigma of Arabidopsis. Nature Plants. 2018;4(6):365-375.
doi:10.1038/s41477-018-0160-7
apa: Gao, Z., Daneva, A., Salanenka, Y., Van Durme, M., Huysmans, M., Lin, Z., …
Nowack, M. (2018). KIRA1 and ORESARA1 terminate flower receptivity by promoting
cell death in the stigma of Arabidopsis. Nature Plants. Nature Publishing
Group. https://doi.org/10.1038/s41477-018-0160-7
chicago: Gao, Zhen, Anna Daneva, Yuliya Salanenka, Matthias Van Durme, Marlies Huysmans,
Zongcheng Lin, Freya De Winter, et al. “KIRA1 and ORESARA1 Terminate Flower Receptivity
by Promoting Cell Death in the Stigma of Arabidopsis.” Nature Plants. Nature
Publishing Group, 2018. https://doi.org/10.1038/s41477-018-0160-7.
ieee: Z. Gao et al., “KIRA1 and ORESARA1 terminate flower receptivity by
promoting cell death in the stigma of Arabidopsis,” Nature Plants, vol.
4, no. 6. Nature Publishing Group, pp. 365–375, 2018.
ista: Gao Z, Daneva A, Salanenka Y, Van Durme M, Huysmans M, Lin Z, De Winter F,
Vanneste S, Karimi M, Van De Velde J, Vandepoele K, Van De Walle D, Dewettinck
K, Lambrecht B, Nowack M. 2018. KIRA1 and ORESARA1 terminate flower receptivity
by promoting cell death in the stigma of Arabidopsis. Nature Plants. 4(6), 365–375.
mla: Gao, Zhen, et al. “KIRA1 and ORESARA1 Terminate Flower Receptivity by Promoting
Cell Death in the Stigma of Arabidopsis.” Nature Plants, vol. 4, no. 6,
Nature Publishing Group, 2018, pp. 365–75, doi:10.1038/s41477-018-0160-7.
short: Z. Gao, A. Daneva, Y. Salanenka, M. Van Durme, M. Huysmans, Z. Lin, F. De
Winter, S. Vanneste, M. Karimi, J. Van De Velde, K. Vandepoele, D. Van De Walle,
K. Dewettinck, B. Lambrecht, M. Nowack, Nature Plants 4 (2018) 365–375.
date_created: 2018-12-11T11:45:35Z
date_published: 2018-05-28T00:00:00Z
date_updated: 2023-09-13T08:24:17Z
day: '28'
department:
- _id: JiFr
doi: 10.1038/s41477-018-0160-7
external_id:
isi:
- '000435571000017'
intvolume: ' 4'
isi: 1
issue: '6'
language:
- iso: eng
month: '05'
oa_version: None
page: 365 - 375
publication: Nature Plants
publication_status: published
publisher: Nature Publishing Group
publist_id: '7619'
quality_controlled: '1'
scopus_import: '1'
status: public
title: KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in
the stigma of Arabidopsis
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 4
year: '2018'
...