Physiological responses of Lepidium meyenii plants to ultraviolet-B radiation challenge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F19%3A00071058" target="_blank" >RIV/00159816:_____/19:00071058 - isvavai.cz</a>

Result on the web

<a href="https://bmcplantbiol.biomedcentral.com/track/pdf/10.1186/s12870-019-1755-5" target="_blank" >https://bmcplantbiol.biomedcentral.com/track/pdf/10.1186/s12870-019-1755-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s12870-019-1755-5" target="_blank" >10.1186/s12870-019-1755-5</a>

Result language

angličtina

Original language name

Physiological responses of Lepidium meyenii plants to ultraviolet-B radiation challenge

Original language description

BackgroundUltraviolet-B (UV-B) radiation can affect several aspects ranging from plant growth to metabolic regulation. Maca is a Brassicaceae crop native to the Andes growing in above 3500m of altitude. Although maca has been the focus mainly due to its nutraceutical properties, it remains unknown how maca plants tolerate to harsh environments, such as strong UV-B. Here, we present the first study that reports the physiological responses of maca plants to counteract and recover to repeated acute UV-B irradiation.ResultsIn detail, plants were daily exposed to acute UV-B irradiation followed by a recovery period under controlled conditions. The results showed that repeated acute UV-B exposures reduced biomass and photosynthetic parameters, with gradual senescence induction in exposed leaves, reduction of young leaves expansion and root growth inhibition. Negative correlation between increased UV-B and recovery was observed, with marked production of new biomass in plants treated one week or more.ConclusionsA differential UV-B response was observed: stress response was mainly controlled by a coordinated source-sink carbon allocation, while acclimation process may require UV-B-specific systemic defense response reflected on the phenotypic plasticity of maca plants. Moreover, these differential UV-B responses were also suggested by multifactorial analysis based on biometric and physiological data.

Czech name

—

Czech description

—

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/LQ1605" target="_blank" >LQ1605: Translational Medicine</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

BMC PLANT BIOLOGY

ISSN

1471-2229

e-ISSN

—

Volume of the periodical

19

Issue of the periodical within the volume

May

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

—

UT code for WoS article

000467423000003

EID of the result in the Scopus database

—