Journal
FOREST PATHOLOGY
Volume 44, Issue 4, Pages 337-340Publisher
WILEY
DOI: 10.1111/efp.12111
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Funding
- Instituto Nacional de Investigacion Agraria [RTA2007-100]
- Ministerio de Ciencia e Innovacion (MCI) [AGL2010-18724]
- Fundacao para a Ciencia e a Tecnologia (FCT, Portugal)
- European Union
- QREN
- FEDER
- COMPETE [PEst-C/QUI/UI0062/2013, FCOMP-01-01240-FEDER-037296]
- FPU-PREDOC programme of MCI
- FCT [SFRH/BPD/46584/2008]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/46584/2008] Funding Source: FCT
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The antioxidant activity of Pinus pinaster seedlings originating from two contrasting maternal environments and inoculated with the fungal pathogen Fusarium circinatum was examined. The antioxidant activity related positively to the stem necrosis caused by the pathogen (p = 0.005), but this relationship differed significantly between maternal environments (p <= 0.002). Seedlings from mother trees grown under a favourable environment expressed a more variable antioxidant activity to F. circinatum than seedlings from mother trees grown in a less favourable environment. Antioxidant activity ranging from 80 to 100% resulted in shorter necrosis in seedlings from the favourable maternal environment than in seedlings from the unfavourable environment. Maternal effects caused shifts in the relationship between antioxidant activity and necrosis in offspring, and significantly modified the individual plant capacity for antioxidant response on pathogen penetration.
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