New Insights Into the Metabolism and Role of CytokininN-Glucosides in Plants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00531598" target="_blank" >RIV/61389030:_____/20:00531598 - isvavai.cz</a>

Výsledek na webu

<a href="http://doi.org/10.3389/fpls.2020.00741" target="_blank" >http://doi.org/10.3389/fpls.2020.00741</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fpls.2020.00741" target="_blank" >10.3389/fpls.2020.00741</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New Insights Into the Metabolism and Role of CytokininN-Glucosides in Plants

Popis výsledku v původním jazyce

Cytokinin (CK)N-glucosides are the most abundant group of CK metabolites in many species, however, their physiological rolein plantawas for a long time perceived as irreversible storage CK forms only. Recently, a comprehensive screen showed that only vascular plants form CKN-glucosides in contrast to mosses, algae, and fungi. The formation of CKN-glucosides as biologically inactive CK conjugates thus represents an evolutionarily young mechanism for deactivation of CK bases. Even though CKN-glucosides are not biologically active themselves due to their inability to activate the CK perception system, new data on CKN-glucoside metabolism show thattrans-zeatin (tZ) N7- and N9-glucosides are metabolizedin vivo, efficiently releasing free CK bases that are most probably responsible for the biological activities observed in a number of bioassays. Moreover, CKN-glucosides' subcellular localization as well as their abundance in xylem both point to their possible plasma membrane transport and indicate a role also as CK transport forms. Identification of the enzyme(s) responsible for the hydrolysis of tZ N7- and N9-glucosides, as well as the discovery of putative CKN-glucoside plasma membrane transporter, would unveil important parts of the overall picture of CK metabolic interconversions and their physiological importance.

Název v anglickém jazyce

New Insights Into the Metabolism and Role of CytokininN-Glucosides in Plants

Popis výsledku anglicky

Cytokinin (CK)N-glucosides are the most abundant group of CK metabolites in many species, however, their physiological rolein plantawas for a long time perceived as irreversible storage CK forms only. Recently, a comprehensive screen showed that only vascular plants form CKN-glucosides in contrast to mosses, algae, and fungi. The formation of CKN-glucosides as biologically inactive CK conjugates thus represents an evolutionarily young mechanism for deactivation of CK bases. Even though CKN-glucosides are not biologically active themselves due to their inability to activate the CK perception system, new data on CKN-glucoside metabolism show thattrans-zeatin (tZ) N7- and N9-glucosides are metabolizedin vivo, efficiently releasing free CK bases that are most probably responsible for the biological activities observed in a number of bioassays. Moreover, CKN-glucosides' subcellular localization as well as their abundance in xylem both point to their possible plasma membrane transport and indicate a role also as CK transport forms. Identification of the enzyme(s) responsible for the hydrolysis of tZ N7- and N9-glucosides, as well as the discovery of putative CKN-glucoside plasma membrane transporter, would unveil important parts of the overall picture of CK metabolic interconversions and their physiological importance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10609 - Biochemical research methods

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Frontiers in Plant Science

ISSN

1664-462X

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

JUN 5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

7

Strana od-do

741

Kód UT WoS článku

000542986200001

EID výsledku v databázi Scopus

2-s2.0-85086774438