Local regulation of auxin transport in root-apex transition zone mediates aluminium-induced Arabidopsis root growth inhibition.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F21%3A00121961" target="_blank" >RIV/00216224:14740/21:00121961 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/tpj.15424" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/tpj.15424</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/tpj.15424" target="_blank" >10.1111/tpj.15424</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Local regulation of auxin transport in root-apex transition zone mediates aluminium-induced Arabidopsis root growth inhibition.

Popis výsledku v původním jazyce

Aluminium (Al) stress is a major limiting factor for worldwide crop production in acid soils. In Arabidopsis thaliana, the TAA1-dependent local auxin biosynthesis in the root-apex transition zone (TZ), the the major perception site for Al toxicity, is crucial for the Al-induced root growth inhibition, while the mechanism underlying Al-regulated auxin accumulation in the TZ is not fully understood. In this study, the role of auxin transport in Al-induced local auxin accumulation in the TZ and root growth inhibition was investigated. Our results showed that PIN-FORMED (PIN) proteins such as PIN1, PIN3, PIN4 and PIN7, and AUX1/LAX proteins such as AUX1, LAX1 and LAX2 were all ectopically up-regulated in the root-apex TZ in response to Al stress, and co-ordinately regulate the local auxin accumulation in the TZ and root growth inhibition. The ectopic up-regulation of PIN1 in the TZ under Al stress was regulated by both ethylene and auxin, with auxin signalling acting downstream of ethylene. Al-induced PIN1 up-regulation and auxin accumulation in the root-apex TZ was also regulated by the calossin-like protein BIG. Together, these studies provide insight about how Al stress induces local auxin accumulation in the TZ and root-growth inhibition through the local regulation of auxin transport.

Název v anglickém jazyce

Local regulation of auxin transport in root-apex transition zone mediates aluminium-induced Arabidopsis root growth inhibition.

Popis výsledku anglicky

Aluminium (Al) stress is a major limiting factor for worldwide crop production in acid soils. In Arabidopsis thaliana, the TAA1-dependent local auxin biosynthesis in the root-apex transition zone (TZ), the the major perception site for Al toxicity, is crucial for the Al-induced root growth inhibition, while the mechanism underlying Al-regulated auxin accumulation in the TZ is not fully understood. In this study, the role of auxin transport in Al-induced local auxin accumulation in the TZ and root growth inhibition was investigated. Our results showed that PIN-FORMED (PIN) proteins such as PIN1, PIN3, PIN4 and PIN7, and AUX1/LAX proteins such as AUX1, LAX1 and LAX2 were all ectopically up-regulated in the root-apex TZ in response to Al stress, and co-ordinately regulate the local auxin accumulation in the TZ and root growth inhibition. The ectopic up-regulation of PIN1 in the TZ under Al stress was regulated by both ethylene and auxin, with auxin signalling acting downstream of ethylene. Al-induced PIN1 up-regulation and auxin accumulation in the root-apex TZ was also regulated by the calossin-like protein BIG. Together, these studies provide insight about how Al stress induces local auxin accumulation in the TZ and root-growth inhibition through the local regulation of auxin transport.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10605 - Developmental biology

Projekt

<a href="/cs/project/EF16_019%2F0000738" target="_blank" >EF16_019/0000738: Centrum experimentální biologie rostlin</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

The Plant Journal

ISSN

0960-7412

e-ISSN

—

Svazek periodika

108

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

55-66

Kód UT WoS článku

000679550900001

EID výsledku v databázi Scopus

2-s2.0-85111498124