http://www.cnr.it/ontology/cnr/individuo/prodotto/ID28104
Systemic effects of Heterobasidion annosum s.s. infection on severity of Diplodia pinea tip blight and terpenoid metabolism in Italian stone pine (Pinus pinea) (Articolo in rivista)
- Type
- Label
- Systemic effects of Heterobasidion annosum s.s. infection on severity of Diplodia pinea tip blight and terpenoid metabolism in Italian stone pine (Pinus pinea) (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1093/treephys/28.11.1653 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Bonello P.;Capretti P.; Luchi N.; Martini V. and Michelozzi M. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Ohio State Univ, Dept Plant Pathol, Columbus, OH 43210 USA
2. Univ Florence, Sez Patol Vegetale, Dipartimento Biotecnol Agr, I-50144 Florence, Italy
3. CNR, Ist Genet Vegetale, I-50019 Florence, Italy (literal)
- Titolo
- Systemic effects of Heterobasidion annosum s.s. infection on severity of Diplodia pinea tip blight and terpenoid metabolism in Italian stone pine (Pinus pinea) (literal)
- Abstract
- Three-year-old seedlings of Pinus pinea L. were
inoculated near the stem base with one of two Heterobasidion
annosum (Fr.) Bref. sensu stricto (s.s.) strains belonging to two
populations: the North American P-group (NAm-P) and the
European P-group (Eur-P). The NAm-P strain caused smaller
H. annosum stem lesions than the Eur-P strain. Three weeks after the stem inoculations with H. annosum, apical shoots were
inoculated with Diplodia pinea (Desmaz.) J. Kick. Basal stem
infection with H. annosum resulted in D. pinea causing longer
necrotic lesions in the shoots, indicating systemic induced susceptibility (SIS) to this shoot blight pathogen. Furthermore,
stem induction with the NAm-P strain resulted in higher susceptibility to D. pinea than stem induction with the Eur-P
strain. Total terpene accumulation was suppressed by about
50% in the shoots under attack by D. pinea when seedlings
were induced with H. annosum. Total terpene concentration in
shoots inoculated with D. pinea was negatively correlated with
lesion size, both overall and by stem treatment. Stem base inoculation with H. annosum induced whole-plant changes in terpenoid profiles, but these were not associated with the SIS phenotype. We discuss our findings on modulation of systemic response of P. pinea to fungal attack in the context of tripartite
ecological interactions. (literal)
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