A resilient mutualistic interaction between cucumber mosaic virus and its natural host to adapt to an excess zinc environment and drought stress.

Autor: Tabara M; Ritsumeikan-Global Innovation Research Organization, Ritsumeikan University, 1-1-1, Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan.; Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan.; Department of Applied Biological Sciences, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan., Uraguchi S; Department of Public Health, School of Pharmacy, Kitasato University, Tokyo, 108-8641, Japan., Kiyono M; Department of Public Health, School of Pharmacy, Kitasato University, Tokyo, 108-8641, Japan., Watanabe I; Department of Environmental and Natural Resource Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan., Takeda A; College of Life Sciences, Ritsumeikan University, 1-1-1, Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan., Takahashi H; Graduate School of Agricultural Science, Tohoku University, Aramaki-Aza-Aoba, 468-1, Sendai, 980-0845, Japan., Fukuhara T; Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan. fuku@cc.tuat.ac.jp.; Department of Applied Biological Sciences, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan. fuku@cc.tuat.ac.jp.
Jazyk: angličtina
Zdroj: Journal of plant research [J Plant Res] 2024 Nov; Vol. 137 (6), pp. 1151-1164. Date of Electronic Publication: 2024 Aug 27.
DOI: 10.1007/s10265-024-01573-w
Abstrakt: A perennial pseudometallophyte Arabidopsis halleri is frequently infected with cucumber mosaic virus (CMV) in its natural habitat. The purpose of this study was to characterize the effect of CMV infection on the environmental adaptation of its natural host A. halleri. The CMV(Ho) strain isolated from A. halleri was inoculated into clonal virus-free A. halleri plants, and a unique plant-virus system consisting of CMV(Ho) and its natural wild plant host was established. In a control environment with ambient zinc supplementation, CMV(Ho) infection retarded growth in the above-ground part of host plants but conferred strong drought tolerance. On the other hand, in an excess zinc environment, simulating a natural edaphic environment of A halleri, host plants hyperaccumulated zinc and CMV(Ho) infection did not cause any symptoms to host plants while conferring mild drought tolerance. We also demonstrated in Nicotiana benthamiana as another host that similar effects were induced by the combination of excess zinc and CMV(Ho) infection. Transcriptomic analysis indicated that the host plant recognized CMV(Ho) as a mutualistic symbiont rather than a parasitic pathogen. These results suggest a resilient mutualistic interaction between CMV(Ho) and its natural host A. halleri in its natural habitat.
(© 2024. The Author(s) under exclusive licence to The Botanical Society of Japan.)
Databáze: MEDLINE
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