Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere

Native forests in southern South America are constantly subjected to natural disasters such as volcanic eruptions. Soil affected by volcanic ash contain large amounts of total P but low P availability, as this element is strongly adsorbed to soil colloids (i.e. allophane). This lack of available P i...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Delgado,M, Zúñiga-Feest,A, Borie,F
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	Southern South American Proteaceae cluster roots phosphorus volcanic soils
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000200003
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162015000200003
record_format	dspace
spelling	oai:scielo:S0718-951620150002000032015-09-29Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphereDelgado,MZúñiga-Feest,ABorie,F Southern South American Proteaceae cluster roots phosphorus volcanic soils Native forests in southern South America are constantly subjected to natural disasters such as volcanic eruptions. Soil affected by volcanic ash contain large amounts of total P but low P availability, as this element is strongly adsorbed to soil colloids (i.e. allophane). This lack of available P is one of the main limitations to plant growth. In this context, it is necessary an in-deep study of plant species that have developed some root physiological strategies for P acquisition. An example of this is the formation of cluster roots by Proteaceae species. Recently, information has been reported that aids to our understanding of the functioning of Proteaceae species growing in volcanic soils. The aim of this review is to discuss the ecophysiological role of Proteaceae species growing in young volcanic soils, with a special emphasis on Embothrium coccineum, a pioneer species of extremely disturbed environments. In summary, we reveal here that E. coccineum has several features that make it suitable for recovering degraded soils in south-central Chile. Some of these characteristics include its ability to survive and successfully establish in poor soils due to its specialized roots adaptation and its ability to shed its leaves under stressful conditions. According to recent evidence, E. coccineum has relatively low foliar nutrient resorption leaving at least half of the nutrients in its senescent leaves; this, in turn, promotes nutrient cycling via mineralization of its leaves. Finally, we conclude that the cluster roots of E. coccineum promote P solubilization and mineralization in the rhizosphere soil allowing for increased P availability for the plant itself and potentially also for neighbouring species.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.2 20152015-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000200003en10.4067/S0718-95162015005000028
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Southern South American Proteaceae cluster roots phosphorus volcanic soils
spellingShingle	Southern South American Proteaceae cluster roots phosphorus volcanic soils Delgado,M Zúñiga-Feest,A Borie,F Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere
description	Native forests in southern South America are constantly subjected to natural disasters such as volcanic eruptions. Soil affected by volcanic ash contain large amounts of total P but low P availability, as this element is strongly adsorbed to soil colloids (i.e. allophane). This lack of available P is one of the main limitations to plant growth. In this context, it is necessary an in-deep study of plant species that have developed some root physiological strategies for P acquisition. An example of this is the formation of cluster roots by Proteaceae species. Recently, information has been reported that aids to our understanding of the functioning of Proteaceae species growing in volcanic soils. The aim of this review is to discuss the ecophysiological role of Proteaceae species growing in young volcanic soils, with a special emphasis on Embothrium coccineum, a pioneer species of extremely disturbed environments. In summary, we reveal here that E. coccineum has several features that make it suitable for recovering degraded soils in south-central Chile. Some of these characteristics include its ability to survive and successfully establish in poor soils due to its specialized roots adaptation and its ability to shed its leaves under stressful conditions. According to recent evidence, E. coccineum has relatively low foliar nutrient resorption leaving at least half of the nutrients in its senescent leaves; this, in turn, promotes nutrient cycling via mineralization of its leaves. Finally, we conclude that the cluster roots of E. coccineum promote P solubilization and mineralization in the rhizosphere soil allowing for increased P availability for the plant itself and potentially also for neighbouring species.
author	Delgado,M Zúñiga-Feest,A Borie,F
author_facet	Delgado,M Zúñiga-Feest,A Borie,F
author_sort	Delgado,M
title	Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere
title_short	Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere
title_full	Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere
title_fullStr	Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere
title_full_unstemmed	Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere
title_sort	ecophysiological role of embothrium coccineum, a proteaceae species bearing cluster roots, at increasing phosphorus availability in its rhizosphere
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000200003
work_keys_str_mv	AT delgadom ecophysiologicalroleofembothriumcoccineumaproteaceaespeciesbearingclusterrootsatincreasingphosphorusavailabilityinitsrhizosphere AT zunigafeesta ecophysiologicalroleofembothriumcoccineumaproteaceaespeciesbearingclusterrootsatincreasingphosphorusavailabilityinitsrhizosphere AT borief ecophysiologicalroleofembothriumcoccineumaproteaceaespeciesbearingclusterrootsatincreasingphosphorusavailabilityinitsrhizosphere
_version_	1714206508220153856

Ecophysiological role of Embothrium coccineum, a Proteaceae species bearing cluster roots, at increasing Phosphorus availability in its rhizosphere

Ejemplares similares