Temperature alters susceptibility of Picea abies seedlings to airborne pollutants: The case of CdO nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F19%3A00506604" target="_blank" >RIV/86652079:_____/19:00506604 - isvavai.cz</a>

Alternative codes found

RIV/68081715:_____/19:00506604 RIV/00159816:_____/19:00072486 RIV/00216305:26620/19:PU136145

Result on the web

<a href="https://reader.elsevier.com/reader/sd/pii/S0269749119303227?token=809AF84CD9D88C571611D638E47320160B12F13EB917228D401467235C8A6A70B42A553C58498A4E3BC8EB8B36B8B6E1" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0269749119303227?token=809AF84CD9D88C571611D638E47320160B12F13EB917228D401467235C8A6A70B42A553C58498A4E3BC8EB8B36B8B6E1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2019.07.061" target="_blank" >10.1016/j.envpol.2019.07.061</a>

Result language

angličtina

Original language name

Temperature alters susceptibility of Picea abies seedlings to airborne pollutants: The case of CdO nanoparticles

Original language description

Although plants are often exposed to atmospheric nanoparticles (NPs), the mechanism of NP depositionand their effects on physiology and metabolism, and particularly in combination with other stressors, arenot yet understood. Exploring interactions between stressors is particularly important for understandingplant responses in urban environments where elevated temperatures can be associated with air pollu-tion. Accordingly, 3-year-old spruce seedlings were exposed for 2 weeks to aerial cadmium oxide (CdO)NPs of environmentally relevant size (8e62 nm) and concentration (2 105cm 3). While half theseedlings were initially acclimated to high temperature (35 C) and vapour pressure deficit (VPD,2.81 kPa), the second half of the plants were left under non-stressed conditions (20 C, 0.58 kPa). Atomicabsorption spectrometry was used to determine Cd content in needles, while gas and liquid chroma-tography was used to determine changes in primary and secondary metabolites. Photosynthesis-relatedprocesses were explored with gas-exchange and chlorophyllfluorescence systems. Our work supportsthe hypothesis that atmospheric CdO NPs penetrate into leaves but high temperature and VPD reducesuch penetration due to stomatal closure. The hypothesis that atmospheric CdO NPs influences physi-ological and metabolic processes in plants was also confirmed. This impact strengthens with increasingtime of exposure. Finally, we found evidence that plants acclimated to stress conditions have differentsensitivity to CdO NPs compared to plants not so acclimated. Thesefindings have important conse-quences for understanding impacts of global warming on plants and indicates that although the effects ofelevated temperatures can be deleterious, this may limit other forms of plant stress associated with airpollution.

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

10406 - Analytical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

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

Environmental Pollution

ISSN

0269-7491

e-ISSN

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Volume of the periodical

253

Issue of the periodical within the volume

OCT 2019

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

646-654

UT code for WoS article

000483406700066

EID of the result in the Scopus database

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