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

Overview of attention for article published in Anais da Academia Brasileira de Ciências, June 2015
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Title
Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto
Published in
Anais da Academia Brasileira de Ciências, June 2015
DOI 10.1590/0001-3765201520140222
Pubmed ID
Authors

Marcelo C. de Souza, Paula C.P. Bueno, Leonor P.C. Morellato, Gustavo Habermann

Abstract

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.

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The data shown below were compiled from readership statistics for 38 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 38 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 9 24%
Researcher 6 16%
Student > Doctoral Student 4 11%
Professor > Associate Professor 4 11%
Professor 3 8%
Other 7 18%
Unknown 5 13%
Readers by discipline Count As %
Agricultural and Biological Sciences 21 55%
Environmental Science 4 11%
Computer Science 1 3%
Unknown 12 32%