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Heinen, R.* ; Sanchez-Mahecha, O.* ; Martijn Bezemer, T.* ; Dominoni, D.M.* ; Knappe, C. ; Kollmann, J.* ; Kopatsch, A. ; Pfeiffer, Z.A.* ; Schloter, M. ; Sturm, S.* ; Schnitzler, J.-P. ; Vlot, A.C. ; Weisser, W.W.*

Part-night exposure to artificial light at night has more detrimental effects on aphid colonies than fully lit nights.

Philos. Trans. R. Soc. B - Biol. Sci. 378:20220357 (2023)
Postprint DOI PMC
Open Access Green
Artificial light at night (ALAN) threatens natural ecosystems globally. While ALAN research is increasing, little is known about how ALAN affects plants and interactions with other organisms. We explored the effects of ALAN on plant defence and plant-insect interactions using barley (Hordeum vulgare) and the English grain aphid (Sitobion avenae). Plants were exposed to 'full' or 'part' nights of 15-20 lux ALAN, or no ALAN 'control' nights, to test the effects of ALAN on plant growth and defence. Although plant growth was only minimally affected by ALAN, aphid colony growth and aphid maturation were reduced significantly by ALAN treatments. Importantly, we found strong differences between full-night and part-night ALAN treatments. Contrary to our expectations, part ALAN had stronger negative effects on aphid colony growth than full ALAN. Defence-associated gene expression was affected in some cases by ALAN, but also positively correlated with aphid colony size, suggesting that the effects of ALAN on plant defences are indirect, and regulated via direct disruption of aphid colonies rather than via ALAN-induced upregulation of defences. Mitigating ecological side effects of ALAN is a complex problem, as reducing exposure to ALAN increased its negative impact on insect herbivores. This article is part of the theme issue 'Light pollution in complex ecological systems'.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Alan ; Gene Expression ; Induced Defences ; Light Pollution ; Plant Defence ; Urban Ecology; Plant; Phytochrome; Proteins; Impacts; Defense; Barley; Resistance; Homoptera; Behavior; Immunity
Sprache englisch
Veröffentlichungsjahr 2023
HGF-Berichtsjahr 2023
ISSN (print) / ISBN 0962-8436
e-ISSN 1471-2970
Zeitschrift Philosophical Transactions of the Royal Society of London. Series B
Quellenangaben Band: 378, Heft: 1892, Seiten: , Artikelnummer: 20220357 Supplement: ,
Verlag Royal Society of London
Verlagsort 6-9 Carlton House Terrace, London Sw1y 5ag, England
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Environmental Simulation (EUS)
Research Unit Comparative Microbiome Analysis (COMI)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504992-001
G-504991-001
G-504700-001
Förderungen We thank Roman Meier for advice and engineering support in the TUMmesa phytochamber facilities. We thank Hans Hausladen and Stefan Kimmelmann for advice and help in obtaining soil for the pot experiment. We thank Sharon Zytynska for suppo
DOI 10.1098/rstb.2022.0357
WOS ID 001092230800008
Scopus ID 85175404881
PubMed ID 37899021
Erfassungsdatum 2023-11-28
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