Temporal physiological response of pine to Fusarium circinatum infection is dependent on host susceptibility level: the role of ABA catabolism
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Scholar |
Other documents of the author: Amaral, Joana; Correia, Barbara; Escandón Martínez, Mónica; Jesus, Cláudia; Serôdio, João; Valledor, Luis; Hancock, Robert D.; Dinis, Lia; Gomez-Cadenas, Aurelio; Alves, Artur; Pinto, Glória
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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10.1093/treephys/tpaa143 |
Metadata
Title
Temporal physiological response of pine to Fusarium circinatum infection is dependent on host susceptibility level: the role of ABA catabolismAuthor (s)
Date
2020-11-05Publisher
Oxford University PressISSN
0829-318X; 1758-4469Bibliographic citation
Joana Amaral, Barbara Correia, Mónica Escandón, Cláudia Jesus, João Serôdio, Luis Valledor, Robert D Hancock, Lia-Tânia Dinis, Aurelio Gomez-Cadenas, Artur Alves, Glória Pinto, Temporal physiological response of pine to Fusarium circinatum infection is dependent on host susceptibility level: the role of ABA catabolism, Tree Physiology, Volume 41, Issue 5, May 2021, Pages 801–816, https://doi.org/10.1093/treephys/tpaa143Type
info:eu-repo/semantics/articlePublisher version
https://academic.oup.com/treephys/article/41/5/801/5943849Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
Pine pitch canker (PPC), caused by Fusarium circinatum Nirenberg and O’Donnell, represents an important threat to conifer forests worldwide, being associated with significant economic losses. Although essential to ... [+]
Pine pitch canker (PPC), caused by Fusarium circinatum Nirenberg and O’Donnell, represents an important threat to conifer forests worldwide, being associated with significant economic losses. Although essential to develop disease mitigation strategies, little research focused on host susceptibility/resistance mechanisms has been conducted. We aimed to explore the response of a highly susceptible (Pinus radiata D. Don) and a relatively resistant (Pinus pinea L.) species to F. circinatum infection at different stages of infection. Morpho-physiological, hormonal and oxidative stress-related changes were assessed for each pine species and sampling point. Most of the changes found occurred in symptomatic P. radiata, for which an increased susceptibility to photoinhibition was detected together with decreased superoxide dismutase activity. Abscisic acid catabolism was activated by F. circinatum inoculation in both pine species, leading to the accumulation of the inactive dihydrophaseic acid in P. radiata and of the less-active phaseic acid in P. pinea. Hormone confocal analysis revealed that this strategy may be of particular importance at 6 d.p.i. in P. pinea, which together with photosynthesis maintenance to fuel defense mechanism, could in part explain the species resistance to PPC. These results are of great interest for the development of hormone-based breeding strategies or for the use of hormone application as inducers of resistance to F. circinatum infection. [-]
Is part of
Tree Physiology, Vol. 41, núm. 5, (2021), pàgs. 801–816Funder Name
National Funds through the Portuguese Foundation for Science and Technology (FCT) | Ministerio de Economía y Competitividad | FCT/MCTES | European Cooperation in Science and Technology | Rural and Environment Science and Analytical Services Division of the Scottish Government | The James Hutton Institute
Project code
POCI-01-015-FEDER-016785 | PTDC/AGR-FOR/2768/2014 | RYC-2015-17871 | SFRH/BD/120967/2016 | UID/50017/2020+UIDB/50017/2020 | FJCI-2017-31613 | COST Action FP1406 PINESTRENGTH
Project title or grant
FEDER, COMPETE (Programa Operacional Fatores de Competitividade) | URGENTpine | Programa Ramón y Cajal | PPC—strategies for management of Gibberella circinata in greenhouses and forests
Rights
info:eu-repo/semantics/restrictedAccess
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- CAMN_Articles [566]