Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Academia Brasileira de Ciências
2015
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876428407855644672 |
|---|---|
| author | MARCELO C. DE SOUZA |
| author_facet | MARCELO C. DE SOUZA |
| contents | Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto MARCELO C. DE SOUZA PAULA C.P. BUENO LEONOR P.C. MORELLATO GUSTAVO HABERMANN Multidisciplinaria (Ciencias Naturales y Exactas) Aluminum community herbivory phenology mineral nutrition The cerrado's flora comprises aluminum-(Al) accumulating and non-accumulating plants, which coexist on acidic and Al-rich soils with low fertility. Despite their existence, the ecological importance or biological strategies of these functional groups have been little explored. We evaluated the leaf flushing patterns of both groups throughout a year; leaf concentrations of N, P, K, Ca, Mg, S, Al, total flavonoids and polyphenols; as well as the specific leaf area (SLA) on young and mature leaves within and between the groups. In Al-accumulating plants, leaf flushed throughout the year, mainly in May and September; for non-accumulating plants, leaf flushing peaked at the dry-wet seasons transition. However, these behaviors could not be associated with strategies for building up concentrations of defense compounds in leaves of any functional groups. Al-accumulating plants showed low leaf nutrient concentrations, while non-accumulating plants accumulated more macronutrients and produced leaves with high SLA since the juvenile leaf phase. This demonstrates that the increase in SLA is slower in Al-accumulating plants that are likely to achieve SLA values comparable to the rest of the plant community only in the wet season, when sunlight capture is impo rtant for the growth of new branches. 2015 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32739721021 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.87 |
| format | Artículo científico |
| id | redalyc_32739721021 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto MARCELO C. DE SOUZA Multidisciplinaria (Ciencias Naturales y Exactas) Aluminum community herbivory phenology mineral nutrition Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto MARCELO C. DE SOUZA PAULA C.P. BUENO LEONOR P.C. MORELLATO GUSTAVO HABERMANN Multidisciplinaria (Ciencias Naturales y Exactas) Aluminum community herbivory phenology mineral nutrition The cerrado's flora comprises aluminum-(Al) accumulating and non-accumulating plants, which coexist on acidic and Al-rich soils with low fertility. Despite their existence, the ecological importance or biological strategies of these functional groups have been little explored. We evaluated the leaf flushing patterns of both groups throughout a year; leaf concentrations of N, P, K, Ca, Mg, S, Al, total flavonoids and polyphenols; as well as the specific leaf area (SLA) on young and mature leaves within and between the groups. In Al-accumulating plants, leaf flushed throughout the year, mainly in May and September; for non-accumulating plants, leaf flushing peaked at the dry-wet seasons transition. However, these behaviors could not be associated with strategies for building up concentrations of defense compounds in leaves of any functional groups. Al-accumulating plants showed low leaf nutrient concentrations, while non-accumulating plants accumulated more macronutrients and produced leaves with high SLA since the juvenile leaf phase. This demonstrates that the increase in SLA is slower in Al-accumulating plants that are likely to achieve SLA values comparable to the rest of the plant community only in the wet season, when sunlight capture is impo rtant for the growth of new branches. 2015 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32739721021 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.87 |
| title | Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) Aluminum community herbivory phenology mineral nutrition |
| url | https://www.redalyc.org/articulo.oa?id=32739721021 |