Contrasting responses of cluster roots formation induced by phosphorus and nitrogen supply in Embothrium coccineum populations from different geographical origin

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dc.contributor.authorBertin-Benavides, A.
dc.contributor.authorBascuñán-Godoy, L.
dc.contributor.authorHenríquez-Castillo C.
dc.contributor.authorDelgado, M.
dc.contributor.authorBurgos, C.F.
dc.contributor.authorMardones, C.
dc.contributor.authorÁvila-Valdés, A.
dc.contributor.authorValdebenito, F.
dc.contributor.authorBravo, S.
dc.contributor.authorRubilar, R.
dc.contributor.authorHasbún, R.
dc.contributor.authorZúñiga-Feest, A.
dc.date.accessioned2021-09-17T23:06:43Z
dc.date.available2021-09-17T23:06:43Z
dc.date.issued2020-08
dc.descriptionIndexación: Scopus.es
dc.description.abstractAims: Embothrium coccineum is a pioneer tree that produces cluster roots (CR) induced by phosphorus (P) or nitrogen (N) deficiency, but the role which both N and P play in CR formation for different E. coccineum populations is still unknown. We hypothesized that in E. coccineum, N influences the CR formation response, primarily induced by P limitation. However, this response depends on local adaptations to their specific conditions of geographic origin. Methods: Seedlings from three contrasting edaphoclimatic conditions (Northern, Central and Southern populations) were grown in hydroponic culture under high and low N supply and at five different P supply. Morphophysiological responses, including CR number, growth, biomass, P and N plant concentration, were studied. Results: Our results showed that at high N supply, CR formation was stimulated with increased P supply, but just until it reaches a maximum of 5 μM, above this concentration CR formation decreases. However, at low N supply, a constitutive response was observed regardless of P supply. Moreover, each of these responses depends on the populations. Conclusions: Our study suggests that N drives CR formation induced by P supply and that a differential response exists among E. coccineum populations, that could be related to their origin edaphoclimatic conditions. © 2020, Springer Nature Switzerland AG.es
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/article/10.1007%2Fs11104-020-04622-0
dc.identifier.citationPlant and Soil Open Access Volume 453, Issue 1-2, Pages 473 - 4851 August 2020es
dc.identifier.doi10.1007/s11104-020-04622-0
dc.identifier.issn0032-079X
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20294
dc.language.isoenes
dc.publisherSpringer Science and Business Media Deutschland GmbHes
dc.subjectCluster rootes
dc.subjectEcotypees
dc.subjectGeographic-origines
dc.subjectLocal-adaptationes
dc.subjectN/Pes
dc.subjectNutritiones
dc.subjectProteaceaees
dc.titleContrasting responses of cluster roots formation induced by phosphorus and nitrogen supply in Embothrium coccineum populations from different geographical origines
dc.typeArtículoes
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