Changes in cytokinins are sufficient to alter developmental patterns of defense metabolites in Nicotiana attenuata

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F17%3A00475960" target="_blank" >RIV/61389030:_____/17:00475960 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1111/tpj.13316" target="_blank" >http://dx.doi.org/10.1111/tpj.13316</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/tpj.13316" target="_blank" >10.1111/tpj.13316</a>

Result language

angličtina

Original language name

Changes in cytokinins are sufficient to alter developmental patterns of defense metabolites in Nicotiana attenuata

Original language description

Plant defense metabolites are well known to be regulated developmentally. The optimal defense (OD) theory posits that a tssue's fitness values and probability of attack should determine defense metabolite allocations. Young leaves are expected to provide a larger fitness value to the plant, and therefore their defense allocations should be higher when compared with older leaves. The mechanisms that coordinate development with defense remain unknown and frequently confound tests of the OD theory predictions. Here we demonstrate that cytokinins (CKs) modulate ontogeny-dependent defenses in Nicotiana attenuata. We found that leaf CK levels highly correlate with inducible defense expressions with high levels in young and low levels in older leaves. We genetically manipulated the developmental patterns of two different CK classes by using senescence- and chemically inducible expression of CK biosynthesis genes. Genetically modifying the levels of different CKs in leaves was sufficient to alter ontogenic patterns of defense metabolites. We conclude that the developmental regulation of growth hormones that include CKs plays central roles in connecting development with defense and therefore in establishing optimal patterns of defense allocation in plants.

Czech name

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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

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OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/LD14120" target="_blank" >LD14120: “The impact of phosphorus nutrition on strigolactone, cytokinin and auxin cross-talk“</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Plant Journal

ISSN

0960-7412

e-ISSN

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Volume of the periodical

89

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

15-30

UT code for WoS article

000395810500002

EID of the result in the Scopus database

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