Local brassinosteroid biosynthesis enables optimal root growth

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F21%3A00546623" target="_blank" >RIV/61389030:_____/21:00546623 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/21:10432701 RIV/61989592:15310/21:73610753

Výsledek na webu

<a href="http://doi.org/10.1038/s41477-021-00917-x" target="_blank" >http://doi.org/10.1038/s41477-021-00917-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41477-021-00917-x" target="_blank" >10.1038/s41477-021-00917-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Local brassinosteroid biosynthesis enables optimal root growth

Popis výsledku v původním jazyce

Brassinosteroid (BR) hormones are indispensable for root growth and control both cell division and cell elongation through the establishment of an increasing signalling gradient along the longitudinal root axis. Because of their limited mobility, the importance of BR distribution in achieving a signalling maximum is largely overlooked. Expression pattern analysis of all known BR biosynthetic enzymes revealed that not all cells in the Arabidopsis thaliana root possess full biosynthetic machinery, and that completion of biosynthesis relies on cell-to-cell movement of hormone precursors. We demonstrate that BR biosynthesis is largely restricted to the root elongation zone, where it overlaps with BR signalling maxima. Moreover, optimal root growth requires hormone concentrations to be low in the meristem and high in the root elongation zone, attributable to increased biosynthesis. Our finding that spatiotemporal regulation of hormone synthesis results in local hormone accumulation provides a paradigm for hormone-driven organ growth in the absence of long-distance hormone transport in plants.

Název v anglickém jazyce

Local brassinosteroid biosynthesis enables optimal root growth

Popis výsledku anglicky

Brassinosteroid (BR) hormones are indispensable for root growth and control both cell division and cell elongation through the establishment of an increasing signalling gradient along the longitudinal root axis. Because of their limited mobility, the importance of BR distribution in achieving a signalling maximum is largely overlooked. Expression pattern analysis of all known BR biosynthetic enzymes revealed that not all cells in the Arabidopsis thaliana root possess full biosynthetic machinery, and that completion of biosynthesis relies on cell-to-cell movement of hormone precursors. We demonstrate that BR biosynthesis is largely restricted to the root elongation zone, where it overlaps with BR signalling maxima. Moreover, optimal root growth requires hormone concentrations to be low in the meristem and high in the root elongation zone, attributable to increased biosynthesis. Our finding that spatiotemporal regulation of hormone synthesis results in local hormone accumulation provides a paradigm for hormone-driven organ growth in the absence of long-distance hormone transport in plants.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10608 - Biochemistry and molecular biology

Projekt

<a href="/cs/project/EF16_019%2F0000827" target="_blank" >EF16_019/0000827: Rostliny jako prostředek udržitelného globálního rozvoje</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

Nature Plants

ISSN

2055-026X

e-ISSN

2055-0278

Svazek periodika

7

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

619-632

Kód UT WoS článku

000651914200015

EID výsledku v databázi Scopus

2-s2.0-85106018517