Organ-specific differences in endogenous phytohormone and antioxidative responses in potato upon PSTVd infection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73598544" target="_blank" >RIV/61989592:15310/19:73598544 - isvavai.cz</a>

Alternative codes found

RIV/61389030:_____/19:00501666

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0176161718304656" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0176161718304656</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jplph.2018.10.027" target="_blank" >10.1016/j.jplph.2018.10.027</a>

Result language

angličtina

Original language name

Organ-specific differences in endogenous phytohormone and antioxidative responses in potato upon PSTVd infection

Original language description

Although structurally simple, viroids can trigger numerous changes in host plants and cause loss of yield in agronomically important crops. This study investigated changes in the endogenous status of phytohormones and antioxidant enzyme activity in Solanum tuberosum cv. Desiree in response to Potato spindle tuber viroid (PSTVd) infection. Phytohormone analysis showed that the content of endogenous jasmonic acid (JA) and its precursor cis-OPDA significantly increased in leaves, while the content of castasterone (CS) increased in both leaves and tubers of systemically infected plants compared to mock-inoculated control plants at 8 weeks post-inoculation. The indole-3-acetic acid content moderately increased only in tubers, while no differences in salicylic acid and abscisic acid content were observed between infected and control plants. Changes in endogenous phytohormone content were associated with upregulated expression of genes involved in the biosynthesis of JA and brassinosteroids, and the metabolism of auxins. Additionally, PSTVd infection provoked overproduction of hydrogen peroxide, which coincided with increased activity of guaiacol peroxidase in leaves and ascorbate peroxidase in potato tubers. The activity of catalase decreased in leaves, while superoxide dismutase activity remained steady regardless of the treatment and organ type. Total ascorbate and glutathione did not change significantly, although a shift towards oxidized forms was observed. Results suggest the existence of organ-specific differences in phytohormone and antioxidative responses in potato upon PSTVd infection. Possible effects of the observed changes on symptom development are discussed.

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

—

OECD FORD branch

10611 - Plant sciences, botany

Project

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

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

JOURNAL OF PLANT PHYSIOLOGY

ISSN

0176-1617

e-ISSN

—

Volume of the periodical

232

Issue of the periodical within the volume

JAN

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

107-114

UT code for WoS article

000454881600013

EID of the result in the Scopus database

2-s2.0-85057759221