---
_id: '5908'
abstract:
- lang: eng
text: The interorganelle communication mediated by membrane contact sites (MCSs)
is an evolutionary hallmark of eukaryotic cells. MCS connections enable the nonvesicular
exchange of information between organelles and allow them to coordinate responses
to changing cellular environments. In plants, the importance of MCS components
in the responses to environmental stress has been widely established, but the
molecular mechanisms regulating interorganelle connectivity during stress still
remain opaque. In this report, we use the model plant Arabidopsis thaliana to
show that ionic stress increases endoplasmic reticulum (ER)–plasma membrane (PM)
connectivity by promoting the cortical expansion of synaptotagmin 1 (SYT1)-enriched
ER–PM contact sites (S-EPCSs). We define differential roles for the cortical cytoskeleton
in the regulation of S-EPCS dynamics and ER–PM connectivity, and we identify the
accumulation of phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] at the PM as
a molecular signal associated with the ER–PM connectivity changes. Our study highlights
the functional conservation of EPCS components and PM phosphoinositides as modulators
of ER–PM connectivity in eukaryotes, and uncovers unique aspects of the spatiotemporal
regulation of ER–PM connectivity in plants.
article_processing_charge: No
article_type: original
author:
- first_name: Eunkyoung
full_name: Lee, Eunkyoung
last_name: Lee
- first_name: Steffen
full_name: Vanneste, Steffen
last_name: Vanneste
- first_name: Jessica
full_name: Pérez-Sancho, Jessica
last_name: Pérez-Sancho
- first_name: Francisco
full_name: Benitez-Fuente, Francisco
last_name: Benitez-Fuente
- first_name: Matthew
full_name: Strelau, Matthew
last_name: Strelau
- first_name: Alberto P.
full_name: Macho, Alberto P.
last_name: Macho
- first_name: Miguel A.
full_name: Botella, Miguel A.
last_name: Botella
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Abel
full_name: Rosado, Abel
last_name: Rosado
citation:
ama: Lee E, Vanneste S, Pérez-Sancho J, et al. Ionic stress enhances ER–PM connectivity
via phosphoinositide-associated SYT1 contact site expansion in Arabidopsis. Proceedings
of the National Academy of Sciences of the United States of America. 2019;116(4):1420-1429.
doi:10.1073/pnas.1818099116
apa: Lee, E., Vanneste, S., Pérez-Sancho, J., Benitez-Fuente, F., Strelau, M., Macho,
A. P., … Rosado, A. (2019). Ionic stress enhances ER–PM connectivity via phosphoinositide-associated
SYT1 contact site expansion in Arabidopsis. Proceedings of the National Academy
of Sciences of the United States of America. National Academy of Sciences.
https://doi.org/10.1073/pnas.1818099116
chicago: Lee, Eunkyoung, Steffen Vanneste, Jessica Pérez-Sancho, Francisco Benitez-Fuente,
Matthew Strelau, Alberto P. Macho, Miguel A. Botella, Jiří Friml, and Abel Rosado.
“Ionic Stress Enhances ER–PM Connectivity via Phosphoinositide-Associated SYT1
Contact Site Expansion in Arabidopsis.” Proceedings of the National Academy
of Sciences of the United States of America. National Academy of Sciences,
2019. https://doi.org/10.1073/pnas.1818099116.
ieee: E. Lee et al., “Ionic stress enhances ER–PM connectivity via phosphoinositide-associated
SYT1 contact site expansion in Arabidopsis,” Proceedings of the National Academy
of Sciences of the United States of America, vol. 116, no. 4. National Academy
of Sciences, pp. 1420–1429, 2019.
ista: Lee E, Vanneste S, Pérez-Sancho J, Benitez-Fuente F, Strelau M, Macho AP,
Botella MA, Friml J, Rosado A. 2019. Ionic stress enhances ER–PM connectivity
via phosphoinositide-associated SYT1 contact site expansion in Arabidopsis. Proceedings
of the National Academy of Sciences of the United States of America. 116(4), 1420–1429.
mla: Lee, Eunkyoung, et al. “Ionic Stress Enhances ER–PM Connectivity via Phosphoinositide-Associated
SYT1 Contact Site Expansion in Arabidopsis.” Proceedings of the National Academy
of Sciences of the United States of America, vol. 116, no. 4, National Academy
of Sciences, 2019, pp. 1420–29, doi:10.1073/pnas.1818099116.
short: E. Lee, S. Vanneste, J. Pérez-Sancho, F. Benitez-Fuente, M. Strelau, A.P.
Macho, M.A. Botella, J. Friml, A. Rosado, Proceedings of the National Academy
of Sciences of the United States of America 116 (2019) 1420–1429.
date_created: 2019-02-03T22:59:14Z
date_published: 2019-01-22T00:00:00Z
date_updated: 2023-08-24T14:31:09Z
day: '22'
department:
- _id: JiFr
doi: 10.1073/pnas.1818099116
external_id:
isi:
- '000456336100050'
pmid:
- '30610176'
intvolume: ' 116'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1818099116
month: '01'
oa: 1
oa_version: Published Version
page: 1420-1429
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ionic stress enhances ER–PM connectivity via phosphoinositide-associated SYT1
contact site expansion in Arabidopsis
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 116
year: '2019'
...
---
_id: '5680'
abstract:
- lang: eng
text: Pollinators display a remarkable diversity of foraging strategies with flowering
plants, from primarily mutualistic interactions to cheating through nectar robbery.
Despite numerous studies on the effect of nectar robbing on components of plant
fitness, its contribution to reproductive isolation is unclear. We experimentally
tested the impact of different pollinator strategies in a natural hybrid zone
between two subspecies of Antirrhinum majus with alternate flower colour guides.
On either side of a steep cline in flower colour between Antirrhinum majus pseudomajus
(magenta) and A. m. striatum (yellow), we quantified the behaviour of all floral
visitors at different time points during the flowering season. Using long-run
camera surveys, we quantify the impact of nectar robbing on the number of flowers
visited per inflorescence and the flower probing time. We further experimentally
tested the effect of nectar robbing on female reproductive success by manipulating
the intensity of robbing. While robbing increased over time the number of legitimate
visitors tended to decrease concomitantly. We found that the number of flowers
pollinated on a focal inflorescence decreased with the number of prior robbing
events. However, in the manipulative experiment, fruit set and fruit volume did
not vary significantly between low robbing and control treatments. Our findings
challenge the idea that robbers have a negative impact on plant fitness through
female function. This study also adds to our understanding of the components of
pollinator-mediated reproductive isolation and the maintenance of Antirrhinum
hybrid zones.
article_processing_charge: No
author:
- first_name: Christophe
full_name: Andalo, Christophe
last_name: Andalo
- first_name: Monique
full_name: Burrus, Monique
last_name: Burrus
- first_name: Sandrine
full_name: Paute, Sandrine
last_name: Paute
- first_name: Christine
full_name: Lauzeral, Christine
last_name: Lauzeral
- first_name: David
full_name: Field, David
id: 419049E2-F248-11E8-B48F-1D18A9856A87
last_name: Field
orcid: 0000-0002-4014-8478
citation:
ama: Andalo C, Burrus M, Paute S, Lauzeral C, Field D. Prevalence of legitimate
pollinators and nectar robbers and the consequences for fruit set in an Antirrhinum
majus hybrid zone. Botany Letters. 2019;166(1):80-92. doi:10.1080/23818107.2018.1545142
apa: Andalo, C., Burrus, M., Paute, S., Lauzeral, C., & Field, D. (2019). Prevalence
of legitimate pollinators and nectar robbers and the consequences for fruit set
in an Antirrhinum majus hybrid zone. Botany Letters. Taylor and Francis.
https://doi.org/10.1080/23818107.2018.1545142
chicago: Andalo, Christophe, Monique Burrus, Sandrine Paute, Christine Lauzeral,
and David Field. “Prevalence of Legitimate Pollinators and Nectar Robbers and
the Consequences for Fruit Set in an Antirrhinum Majus Hybrid Zone.” Botany
Letters. Taylor and Francis, 2019. https://doi.org/10.1080/23818107.2018.1545142.
ieee: C. Andalo, M. Burrus, S. Paute, C. Lauzeral, and D. Field, “Prevalence of
legitimate pollinators and nectar robbers and the consequences for fruit set in
an Antirrhinum majus hybrid zone,” Botany Letters, vol. 166, no. 1. Taylor
and Francis, pp. 80–92, 2019.
ista: Andalo C, Burrus M, Paute S, Lauzeral C, Field D. 2019. Prevalence of legitimate
pollinators and nectar robbers and the consequences for fruit set in an Antirrhinum
majus hybrid zone. Botany Letters. 166(1), 80–92.
mla: Andalo, Christophe, et al. “Prevalence of Legitimate Pollinators and Nectar
Robbers and the Consequences for Fruit Set in an Antirrhinum Majus Hybrid Zone.”
Botany Letters, vol. 166, no. 1, Taylor and Francis, 2019, pp. 80–92, doi:10.1080/23818107.2018.1545142.
short: C. Andalo, M. Burrus, S. Paute, C. Lauzeral, D. Field, Botany Letters 166
(2019) 80–92.
date_created: 2018-12-16T22:59:20Z
date_published: 2019-01-01T00:00:00Z
date_updated: 2023-08-24T14:34:12Z
day: '01'
department:
- _id: NiBa
doi: 10.1080/23818107.2018.1545142
external_id:
isi:
- '000463802800009'
intvolume: ' 166'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 80-92
publication: Botany Letters
publication_identifier:
eissn:
- '23818115'
issn:
- '23818107'
publication_status: published
publisher: Taylor and Francis
quality_controlled: '1'
scopus_import: '1'
status: public
title: Prevalence of legitimate pollinators and nectar robbers and the consequences
for fruit set in an Antirrhinum majus hybrid zone
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 166
year: '2019'
...
---
_id: '5790'
abstract:
- lang: eng
text: The partial representation extension problem is a recently introduced generalization
of the recognition problem. A circle graph is an intersection graph of chords
of a circle. We study the partial representation extension problem for circle
graphs, where the input consists of a graph G and a partial representation R′
giving some predrawn chords that represent an induced subgraph of G. The question
is whether one can extend R′ to a representation R of the entire graph G, that
is, whether one can draw the remaining chords into a partially predrawn representation
to obtain a representation of G. Our main result is an O(n3) time algorithm for
partial representation extension of circle graphs, where n is the number of vertices.
To show this, we describe the structure of all representations of a circle graph
using split decomposition. This can be of independent interest.
article_processing_charge: No
article_type: original
author:
- first_name: Steven
full_name: Chaplick, Steven
last_name: Chaplick
- first_name: Radoslav
full_name: Fulek, Radoslav
id: 39F3FFE4-F248-11E8-B48F-1D18A9856A87
last_name: Fulek
orcid: 0000-0001-8485-1774
- first_name: Pavel
full_name: Klavík, Pavel
last_name: Klavík
citation:
ama: Chaplick S, Fulek R, Klavík P. Extending partial representations of circle
graphs. Journal of Graph Theory. 2019;91(4):365-394. doi:10.1002/jgt.22436
apa: Chaplick, S., Fulek, R., & Klavík, P. (2019). Extending partial representations
of circle graphs. Journal of Graph Theory. Wiley. https://doi.org/10.1002/jgt.22436
chicago: Chaplick, Steven, Radoslav Fulek, and Pavel Klavík. “Extending Partial
Representations of Circle Graphs.” Journal of Graph Theory. Wiley, 2019.
https://doi.org/10.1002/jgt.22436.
ieee: S. Chaplick, R. Fulek, and P. Klavík, “Extending partial representations of
circle graphs,” Journal of Graph Theory, vol. 91, no. 4. Wiley, pp. 365–394,
2019.
ista: Chaplick S, Fulek R, Klavík P. 2019. Extending partial representations of
circle graphs. Journal of Graph Theory. 91(4), 365–394.
mla: Chaplick, Steven, et al. “Extending Partial Representations of Circle Graphs.”
Journal of Graph Theory, vol. 91, no. 4, Wiley, 2019, pp. 365–94, doi:10.1002/jgt.22436.
short: S. Chaplick, R. Fulek, P. Klavík, Journal of Graph Theory 91 (2019) 365–394.
date_created: 2018-12-30T22:59:15Z
date_published: 2019-08-01T00:00:00Z
date_updated: 2023-08-24T14:30:43Z
day: '01'
department:
- _id: UlWa
doi: 10.1002/jgt.22436
ec_funded: 1
external_id:
arxiv:
- '1309.2399'
isi:
- '000485392800004'
intvolume: ' 91'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1309.2399
month: '08'
oa: 1
oa_version: Preprint
page: 365-394
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Journal of Graph Theory
publication_identifier:
issn:
- '03649024'
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Extending partial representations of circle graphs
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 91
year: '2019'
...
---
_id: '405'
abstract:
- lang: eng
text: We investigate the quantum Jensen divergences from the viewpoint of joint
convexity. It turns out that the set of the functions which generate jointly convex
quantum Jensen divergences on positive matrices coincides with the Matrix Entropy
Class which has been introduced by Chen and Tropp quite recently.
acknowledgement: The author was supported by the ISTFELLOW program of the Institute
of Science and Technology Austria (project code IC1027FELL01) and partially supported
by the Hungarian National Research, Development and Innovation Office – NKFIH (grant
no. K124152)
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
full_name: Virosztek, Daniel
id: 48DB45DA-F248-11E8-B48F-1D18A9856A87
last_name: Virosztek
orcid: 0000-0003-1109-5511
citation:
ama: Virosztek D. Jointly convex quantum Jensen divergences. Linear Algebra and
Its Applications. 2019;576:67-78. doi:10.1016/j.laa.2018.03.002
apa: Virosztek, D. (2019). Jointly convex quantum Jensen divergences. Linear
Algebra and Its Applications. Elsevier. https://doi.org/10.1016/j.laa.2018.03.002
chicago: Virosztek, Daniel. “Jointly Convex Quantum Jensen Divergences.” Linear
Algebra and Its Applications. Elsevier, 2019. https://doi.org/10.1016/j.laa.2018.03.002.
ieee: D. Virosztek, “Jointly convex quantum Jensen divergences,” Linear Algebra
and Its Applications, vol. 576. Elsevier, pp. 67–78, 2019.
ista: Virosztek D. 2019. Jointly convex quantum Jensen divergences. Linear Algebra
and Its Applications. 576, 67–78.
mla: Virosztek, Daniel. “Jointly Convex Quantum Jensen Divergences.” Linear Algebra
and Its Applications, vol. 576, Elsevier, 2019, pp. 67–78, doi:10.1016/j.laa.2018.03.002.
short: D. Virosztek, Linear Algebra and Its Applications 576 (2019) 67–78.
date_created: 2018-12-11T11:46:17Z
date_published: 2019-09-01T00:00:00Z
date_updated: 2023-08-24T14:31:47Z
day: '01'
department:
- _id: LaEr
doi: 10.1016/j.laa.2018.03.002
ec_funded: 1
external_id:
arxiv:
- '1712.05324'
isi:
- '000470955300005'
intvolume: ' 576'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1712.05324
month: '09'
oa: 1
oa_version: Preprint
page: 67-78
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Linear Algebra and Its Applications
publication_status: published
publisher: Elsevier
publist_id: '7424'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Jointly convex quantum Jensen divergences
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 576
year: '2019'
...
---
_id: '175'
abstract:
- lang: eng
text: An upper bound sieve for rational points on suitable varieties isdeveloped,
together with applications tocounting rational points in thin sets,to local solubility
in families, and to the notion of “friable” rational pointswith respect to divisors.
In the special case of quadrics, sharper estimates areobtained by developing a
version of the Selberg sieve for rational points.
article_processing_charge: No
author:
- first_name: Timothy D
full_name: Browning, Timothy D
id: 35827D50-F248-11E8-B48F-1D18A9856A87
last_name: Browning
orcid: 0000-0002-8314-0177
- first_name: Daniel
full_name: Loughran, Daniel
last_name: Loughran
citation:
ama: Browning TD, Loughran D. Sieving rational points on varieties. Transactions
of the American Mathematical Society. 2019;371(8):5757-5785. doi:10.1090/tran/7514
apa: Browning, T. D., & Loughran, D. (2019). Sieving rational points on varieties.
Transactions of the American Mathematical Society. American Mathematical
Society. https://doi.org/10.1090/tran/7514
chicago: Browning, Timothy D, and Daniel Loughran. “Sieving Rational Points on Varieties.”
Transactions of the American Mathematical Society. American Mathematical
Society, 2019. https://doi.org/10.1090/tran/7514.
ieee: T. D. Browning and D. Loughran, “Sieving rational points on varieties,” Transactions
of the American Mathematical Society, vol. 371, no. 8. American Mathematical
Society, pp. 5757–5785, 2019.
ista: Browning TD, Loughran D. 2019. Sieving rational points on varieties. Transactions
of the American Mathematical Society. 371(8), 5757–5785.
mla: Browning, Timothy D., and Daniel Loughran. “Sieving Rational Points on Varieties.”
Transactions of the American Mathematical Society, vol. 371, no. 8, American
Mathematical Society, 2019, pp. 5757–85, doi:10.1090/tran/7514.
short: T.D. Browning, D. Loughran, Transactions of the American Mathematical Society
371 (2019) 5757–5785.
date_created: 2018-12-11T11:45:01Z
date_published: 2019-04-15T00:00:00Z
date_updated: 2023-08-24T14:34:56Z
day: '15'
department:
- _id: TiBr
doi: 10.1090/tran/7514
external_id:
arxiv:
- '1705.01999'
isi:
- '000464034200019'
intvolume: ' 371'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1705.01999
month: '04'
oa: 1
oa_version: Preprint
page: 5757-5785
publication: Transactions of the American Mathematical Society
publication_identifier:
eissn:
- '10886850'
issn:
- '00029947'
publication_status: published
publisher: American Mathematical Society
publist_id: '7746'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Sieving rational points on varieties
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 371
year: '2019'
...