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Gall- and erineum-forming Eriophyes mites alter photosynthesis and volatile emissions in an infection severity-dependent manner in broad-leaved trees Alnus glutinosa and Tilia cordata.

Authors
  • Jiang, Yifan1, 2
  • Ye, Jiayan1
  • Veromann-Jürgenson, Linda-Liisa1
  • Niinemets, Ülo1, 3
  • 1 Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51006, Estonia. , (Estonia)
  • 2 College of Horticulture, Nanjing Agricultural University, No 1 Weigang, Nanjing 210095, China. , (China)
  • 3 Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia. , (Estonia)
Type
Published Article
Journal
Tree Physiology
Publisher
Oxford University Press
Publication Date
Jul 05, 2021
Volume
41
Issue
7
Pages
1122–1142
Identifiers
DOI: 10.1093/treephys/tpaa173
PMID: 33367874
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Highly host-specific eriophyoid gall- and erineum-forming mites infest a limited range of broadleaf species, with the mites from the genus Eriophyes particularly widespread on Alnus spp. and Tilia spp. Once infected, the infections can be massive, covering a large part of leaf area and spreading through the plant canopy, but the effects of Eriophyes mite gall formation on the performance of host leaves are poorly understood. We studied the influence of three frequent Eriophyes infections, E. inangulis gall-forming mites on Alnus glutinosa, and E. tiliae gall-forming and E. exilis erineum-forming mites on Tilia cordata, on foliage morphology, chemistry, photosynthetic characteristics, and constitutive and induced volatile emissions. For all types of infections, leaf dry mass per unit area, net assimilation rate per area and stomatal conductance strongly decreased with increasing severity of infection. Mite infections resulted in enhancement or elicitation of emissions of fatty acid-derived volatiles, isoprene, benzenoids and carotenoid breakdown products in an infection severity-dependent manner for all different infections. Monoterpene emissions were strongly elicited in T. cordata mite infections, but these emissions were suppressed in E. inangulis-infected A. glutinosa. Although the overall level of mite-induced emissions was surprisingly low, these results highlight the uniqueness of the volatile profiles and offer opportunities for using volatile fingerprints and overall emission rates to diagnose infections by Eriophyes gall- and erineum-forming mites on temperate trees and assess their impact on the physiology of the affected trees. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: [email protected]

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