Plasma Membrane Domain Patterning and Self-Reinforcing Polarity in Arabidopsis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00521442" target="_blank" >RIV/61389030:_____/20:00521442 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.devcel.2019.11.015" target="_blank" >http://dx.doi.org/10.1016/j.devcel.2019.11.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.devcel.2019.11.015" target="_blank" >10.1016/j.devcel.2019.11.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Plasma Membrane Domain Patterning and Self-Reinforcing Polarity in Arabidopsis

Popis výsledku v původním jazyce

Cell polarity is a key feature in the development of multicellular organisms. For instance, asymmetrically localized plasma-membrane-integral PIN-FORMED (PIN) proteins direct transcellular fluxes of the phytohormone auxin that govern plant development. Fine-tuned auxin flux is important for root protophloem sieve element differentiation and requires the interacting plasma-membrane-associated BREVIS RADIX (BRX) and PROTEIN KINASE ASSOCIATED WITH BRX (PAX) proteins. We observed donut-like polar PIN localization in developing sieve elements that depends on complementary, muffin-like polar localization of BRX and PAX. Plasma membrane association and polarity of PAX, and indirectly BRX, largely depends on phosphatidylinositol-4,5-bisphosphate. Consistently, mutants in phosphatidylinositol-4-phosphate 5-kinases (PIP5Ks) display protophloem differentiation defects similar to brx mutants. The same PIP5Ks are in complex with BRX and display muffin-like polar localization. Our data suggest that the BRX-PAX module recruits PIP5Ks to reinforce PAX polarity and thereby the polarity of all three proteins, which is required to maintain a local PIN minimum.

Název v anglickém jazyce

Plasma Membrane Domain Patterning and Self-Reinforcing Polarity in Arabidopsis

Popis výsledku anglicky

Cell polarity is a key feature in the development of multicellular organisms. For instance, asymmetrically localized plasma-membrane-integral PIN-FORMED (PIN) proteins direct transcellular fluxes of the phytohormone auxin that govern plant development. Fine-tuned auxin flux is important for root protophloem sieve element differentiation and requires the interacting plasma-membrane-associated BREVIS RADIX (BRX) and PROTEIN KINASE ASSOCIATED WITH BRX (PAX) proteins. We observed donut-like polar PIN localization in developing sieve elements that depends on complementary, muffin-like polar localization of BRX and PAX. Plasma membrane association and polarity of PAX, and indirectly BRX, largely depends on phosphatidylinositol-4,5-bisphosphate. Consistently, mutants in phosphatidylinositol-4-phosphate 5-kinases (PIP5Ks) display protophloem differentiation defects similar to brx mutants. The same PIP5Ks are in complex with BRX and display muffin-like polar localization. Our data suggest that the BRX-PAX module recruits PIP5Ks to reinforce PAX polarity and thereby the polarity of all three proteins, which is required to maintain a local PIN minimum.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10601 - Cell biology

Projekt

<a href="/cs/project/EF16_013%2F0001775" target="_blank" >EF16_013/0001775: Modernizace a podpora výzkumných aktivit národní infrastruktury pro biologické a medicínské zobrazování Czech-BioImaging</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Developmental Cell

ISSN

1534-5807

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

223-235

Kód UT WoS článku

000509725500011

EID výsledku v databázi Scopus

2-s2.0-85078186775