Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto

Full text
de Souza, Marcelo C. [1, 2] ; Bueno, Paula C. P. [3] ; Morellato, Leonor P. C. [4] ; Habermann, Gustavo [4]
Total Authors: 4
[1] Univ Estadual Paulista, Inst Biociencias, Dept Bot, Programa Posgrad Ciencias Biol Biol Vegetal, UNESP, BR-13506900 Rio Claro, SP - Brazil
[2] Univ Sao Paulo, Dept Ciencias Farmaceut, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Ribeirao Preto, SP - Brazil
[3] Univ Estadual Paulista, Inst Quim, Dept Quim Organ, UNESP, BR-14800900 Araraquara, SP - Brazil
[4] Univ Estadual Paulista, Inst Biociencias, Dept Bot, UNESP, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Anais da Academia Brasileira de Ciências; v. 87, n. 2, p. 813-823, JUN 2015.
Web of Science Citations: 13

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 important for the growth of new branches. (AU)

FAPESP's process: 12/13762-3 - Comparative study between the Australian and Brazilian savannas: is aluminum in the soil a survival factor for the plant species?
Grantee:Marcelo Claro de Souza
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 10/07809-1 - Multivariate and molecular approaches in the phenology study of functional groups of Brazilian Savanna
Grantee:Marcelo Claro de Souza
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 10/51307-0 - Floristic diversity and seasonal patterns of rupestrian fields and cerrado
Grantee:Leonor Patricia Cerdeira Morellato
Support type: Research Grants - Research Partnership for Technological Innovation - PITE