The trans and cis zeatin isomers play different roles in regulating growth inhibition induced by high nitrate concentrations in maize

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43913311" target="_blank" >RIV/62156489:43210/18:43913311 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/18:73591898

Result on the web

<a href="https://doi.org/10.1007/s10725-018-0383-7" target="_blank" >https://doi.org/10.1007/s10725-018-0383-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10725-018-0383-7" target="_blank" >10.1007/s10725-018-0383-7</a>

Result language

angličtina

Original language name

The trans and cis zeatin isomers play different roles in regulating growth inhibition induced by high nitrate concentrations in maize

Original language description

Abscisic acid (ABA), auxins, and cytokinins (CKs) are known to be closely linked to nitrogen signaling. In particular, CKs control the effects of nitrate availability on plant growth. Our group has shown that treatment with high nitrate concentrations limits root growth and leaf development in maize, and conditions the development of younger roots and leaves. CKs also affect source-sink relationships in plants. Based on these results, we hypothesized that CKs regulate the source-sink relationship in maize via a mechanism involving complex crosstalk with the main auxin indole-3-acetic acid (IAA) and ABA. To evaluate this hypothesis, various CK metabolites, IAA, and ABA were quantified in the roots and in source and sink leaves of maize plants treated with high and normal nitrate concentrations. The data obtained suggest that the cis and trans isomers of zeatin play completely distinct roles in maize growth regulation by a complex crosstalk with IAA and ABA. We demonstrate that while trans-zeatin (tZ) and isopentenyladenine (iP) regulate nitrate uptake and thus control final leaf sizes, cis-zeatin (cZ) regulates source and sink strength, and thus controls leaf development. The implications of these findings relating to the roles of ABA and IAA in plants&apos; responses to varying nitrate concentrations are also discussed.

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

10608 - Biochemistry and molecular biology

Project

<a href="/en/project/LO1204" target="_blank" >LO1204: Sustainable development of research in the Centre of the Region Haná</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Plant Growth Regulation

ISSN

0167-6903

e-ISSN

—

Volume of the periodical

85

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

199-209

UT code for WoS article

000431424800003

EID of the result in the Scopus database

2-s2.0-85042918625