A meta-analysis of the interactive effects of UV and drought on plants

Jansen, Marcel A. K.; Ač, Alexander; Klem, Karel; Urban, Otmar

A meta-analysis of the interactive effects of UV and drought on plants

dc.contributor.author	Jansen, Marcel A. K.
dc.contributor.author	Ač, Alexander
dc.contributor.author	Klem, Karel
dc.contributor.author	Urban, Otmar
dc.contributor.funder	Science Foundation Ireland	en
dc.contributor.funder	Ministerstvo Školství, Mládeže a Tělovýchovy	en
dc.contributor.funder	European Commission	en
dc.date.accessioned	2021-12-20T10:25:54Z
dc.date.available	2021-12-20T10:25:54Z
dc.date.issued	2021-11-14
dc.date.updated	2021-12-20T09:53:23Z
dc.description.abstract	Interactions between climate change and UV penetration in the biosphere are resulting in the exposure of plants to new combinations of UV radiation and drought. In theory, the impacts of combinations of UV and drought may be additive, synergistic or antagonistic. Lack of understanding of the impacts of combined treatments creates substantial uncertainties that hamper predictions of future ecological change. Here, we compiled information from 52 publications and analysed the relative impacts of UV and/or drought. Both UV and drought have substantial negative effects on biomass accumulation, plant height, photosynthesis, leaf area and stomatal conductance and transpiration, while increasing stress-associated symptoms such as MDA accumulation and reactive-oxygen-species content. Contents of proline, flavonoids, antioxidants and anthocyanins, associated with plant acclimation, are upregulated both under enhanced UV and drought. In plants exposed to both UV and drought, increases in plant defense responses are less-than-additive, and so are the damage and growth retardation. Less-than-additive effects were observed across field, glasshouse and growth-chamber studies, indicating similar physiological response mechanisms. Induction of a degree of cross-resistance seems the most likely interpretation of the observed less-than-additive responses. The data show that in future climates, the impacts of increases in drought exposure may be lessened by naturally high UV regimes.	en
dc.description.sponsorship	Science Foundation Ireland (16/IA/4418); European Commission and Ministerstvo Školství, Mládeže a Tělovýchovy (SustES—adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions, Project No. CZ.02.1.01/0.0/0.0/16_019/0000797)	en
dc.description.status	Peer reviewed	en
dc.description.version	Accepted Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Jansen, M.A. K.; Ač, A., Klem, K. and Urban, O. (2021) 'A meta-analysis of the interactive effects of UV and drought on plants', Plant Cell and Environment. doi: 10.1111/pce.14221	en
dc.identifier.doi	10.1111/pce.14221	en
dc.identifier.eissn	1365-3040
dc.identifier.issn	0140-7791
dc.identifier.journaltitle	Plant, Cell and Environment	en
dc.identifier.uri	https://hdl.handle.net/10468/12359
dc.language.iso	en	en
dc.publisher	John Wiley & Sons, Inc.	en
dc.rights	© 2021, John Wiley & Sons Ltd. This is the peer reviewed version of the following item: Jansen, M.A. K.; Ač, A., Klem, K. and Urban, O. (2021) 'A meta-analysis of the interactive effects of UV and drought on plants', Plant Cell and Environment, doi: 10.1111/pce.14221, which has been published in final form at: https://doi.org/10.1111/pce.14221. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.	en
dc.subject	Additive effect	en
dc.subject	Stress	en
dc.subject	Synergistic effect	en
dc.subject	Cross-resistance	en
dc.title	A meta-analysis of the interactive effects of UV and drought on plants	en
dc.type	Article (peer-reviewed)	en