Epidermal bladder cells as a herbivore defense mechanism

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Dokumenter

Fulltext
Forlagets udgivne version, 6,07 MB, PDF-dokument

Moog, Max William
Xiuyan Yang
Bendtsen, Amalie Kofoed
Lin Dong
Christoph Crocoll
Tomohiro Imamura
Masashi Mori
John C. Cushman
Merijn R. Kant
Palmgren, Michael Broberg

The aerial surfaces of quinoa (Chenopodium quinoa) and common ice plant (Mesembryanthemum crystallinum) are covered with a layer of epidermal bladder cells (EBCs), which are modified non-glandular trichomes previously considered to be key to the extreme salt and drought tolerance of these plants. Here, however, we find that EBCs of these plants play only minor roles, if any, in abiotic stress tolerance and in fact are detrimental under conditions of water deficit. We report that EBCs instead function as deterrents to a broad range of generalist arthropod herbivores, through their combined function of forming both a chemical and a physical barrier, and they also serve a protective function against a phytopathogen. Our study overturns current models that link EBCs to salt and drought tolerance and assigns new functions to these structures that might provide novel possibilities for protecting crops from arthropod pests.

Originalsprog	Engelsk
Tidsskrift	Current Biology
Vol/bind	33
Udgave nummer	21
Sider (fra-til)	4662-4673.e6
Antal sider	19
ISSN	0960-9822
DOI	https://doi.org/10.1016/j.cub.2023.09.063
Status	Udgivet - 2023

Bibliografisk note

Funding Information:
This work was supported by the Carlsberg Foundation (RaisingQuinoa; M.P.), the Novo Nordisk Foundation (NovoCrops; M.P.), and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Fellowship Programme (grant agreement no. 801199 : M.W.M.).

Funding Information:
This work was supported by the Carlsberg Foundation (RaisingQuinoa; M.P.), the Novo Nordisk Foundation (NovoCrops; M.P.), and the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Fellowship Programme (grant agreement no. 801199: M.W.M.). M.W.M. and M.P. conceived the study. M.W.M. and M.P. designed the experiments. M.W.M. X.Y. A.K.B. L.D. and C.C. conducted the experiments. M.W.M. M.R.K. and M.P. analyzed the data. M.W.M. wrote the first draft of the manuscript. T.I. M.M. J.C.C. and M.R.K. contributed biological material. All authors participated in writing and editing the manuscript. M.P. acquired funding and supervised the project. The authors declare no competing interests.

Publisher Copyright:
© 2023 The Author(s)

ID: 375548987