Arabidopsis EXO70B2 exocyst subunit contributes to papillae and encasement formation in antifungal defence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F22%3A00557185" target="_blank" >RIV/61389030:_____/22:00557185 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/22:10444063 RIV/60461373:22330/22:43924807

Result on the web

<a href="http://doi.org/10.1093/jxb/erab457" target="_blank" >http://doi.org/10.1093/jxb/erab457</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/jxb/erab457" target="_blank" >10.1093/jxb/erab457</a>

Result language

angličtina

Original language name

Arabidopsis EXO70B2 exocyst subunit contributes to papillae and encasement formation in antifungal defence

Original language description

The exocyst complex containing the EXO70B2 subunit has a specific role in papilla and encasement formation, implemented in coordination with the pathway regulated by the SYP121 SNARE complex in defence. In the reaction to non-adapted Blumeria graminis f. sp. hordei (Bgh), Arabidopsis thaliana leaf epidermal cells deposit cell wall reinforcements called papillae or seal fungal haustoria in encasements, both of which involve intensive exocytosis. A plant syntaxin, SYP121/PEN1, has been found to be of key importance for the timely formation of papillae, and the vesicle tethering complex exocyst subunit EXO70B2 has been found to contribute to their morphology. Here, we identify a specific role for the EXO70B2-containing exocyst complex in the papillae membrane domains important for callose deposition and GFP-SYP121 delivery to the focal attack sites, as well as its contribution to encasement formation. The mRuby2-EXO70B2 co-localizes with the exocyst core subunit SEC6 and GFP-SYP121 in the membrane domain of papillae, and EXO70B2 and SYP121 proteins have the capacity to directly interact. The exo70B2/syp121 double mutant produces a reduced number of papillae and haustorial encasements in response to Bgh, indicating an additive role of the exocyst in SYP121-coordinated non-host resistance. In summary, we report cooperation between the plant exocyst and a SNARE protein in penetration resistance against non-adapted fungal pathogens.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10601 - Cell biology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Experimental Botany

ISSN

0022-0957

e-ISSN

1460-2431

Volume of the periodical

73

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

742-755

UT code for WoS article

000761507000009

EID of the result in the Scopus database

2-s2.0-85124467058