Aluminium accumulation by some cerrado native species of central Brazil

Haridasan, M.

doi:10.1007/bf02374657

Cited by 167 publications

(156 citation statements)

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“…A ocorrência de espécies acumuladoras de Al em cerrado e cerradão foi discutida por Haridasan (1982Haridasan ( , 1987 e . A origem evolutiva desta característica nas plantas superiores e os mecanismos de absorção, translocação e deposição em vários componentes da biomassa estão sendo discutidos na literatura recente (Hodson & Sangster 1999, Ma et al 2001, Watanabe & Osaki 2002, Jansen et al 2002, 2003.…”

Section: Discussionunclassified

“…Nesses estudos, foram analisadas amostras compostas de folhedo, não permitindo conhecer a contribuição de cada espécie na ciclagem de nutrientes. Aqueles que analisaram o teor de nutrientes em folhas adultas de espécies arbóreas foram os de Tanner (1977) na Jamaica e de Montes & Medina (1977), Sobrado & Medina (1980) e Medina et al (1990) No Brasil, a maior parte das análises da concentração de nutrientes nas folhas de comunidades vegetais nativas foi feita em cerrados, com ênfase em espécies lenhosas acumuladoras de Al (Haridasan 1982, 1987. Os mais recentes (Haridasan 2000, Lilienfein et al 2001 continuam desvendando o intrigante comportamento das espécies quanto à nutrição mineral nos cerrados e em comunidades vegetais florestais dessa região (Marimon et al 2001).…”

Section: Introductionunclassified

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Perfil nutricional de espécies lenhosas de duas florestas semidecíduas em Uberlândia, MG

Haridasan

Araújo

2005

Rev. bras. Bot.

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-(Nutritional status of woody species of two semideciduous forests in Uberlândia, MG). The objective of this study was to determine the influence of soil fertility on the mineral nutrition and distribution of native species in two semideciduous forests at the Experimental Farm at Gloria (FEG) and the Ecological Station at Panga (EEP) in Uberlândia, MG. Leaf samples were collected from two to four individuals with a minimum circumference of 10 cm at 1,30 m height of all species within 50 contiguous plots of 10 m × 10 m in each forest. Soil samples were analyzed from the A1 e A3 horizons of each plot of both areas. The soil of EEP showed lower acidity, higher availability of Ca and lower availability of Al, Fe, Zn and Cu. The availability of Mn was lower in the A3 horizon and higher in the A1 horizon at EEP. The foliar concentrations of Ca e K were higher at EEP which reflected the higher levels in soil. There were no differences in the concentrations of P, Mg, Fe, Cu and Zn. The N concentrations were higher among species occurring exclusively at FEG. The Mn concentrations were lower at EEP, reflecting the effect of pH on its absorption. Thus the occurrence of some species exclusively at EEP seemed to be associated with their ability to absorb K and Mg from soils with high Ca availability.Key words -aluminum accumulators, calcicoles, foliar nutrient concentrations, soil fertility, tropical forests RESUMO -(Perfil nutricional de espécies lenhosas de duas florestas semidecíduas em Uberlândia, MG). O estudo teve como objetivo determinar a influência da fertilidade sobre nutrição mineral e distribuição das espécies nativas em duas florestas semidecíduas na Fazenda Experimental de Glória (FEG) e Estação Ecológica do Panga (EEP) em Uberlândia, MG. Foram amostradas de duas a quatro árvores, com circunferência mínima de 10 cm, a altura de 1,30 m do solo, de todas as espécies encontradas em 50 parcelas contíguas de 10 m × 10 m, em cada floresta. Foram analisadas amostras de solo dos horizontes A1 e A3 de cada parcela nas duas florestas. O solo da EEP apresentou menor acidez, associada à maior disponibilidade de Ca e menor disponibilidade de Al, Fe, Zn e Cu. A disponibilidade Mn foi menor no horizonte A3 e maior no A1 na EEP. As concentrações foliares de Ca e K foram maiores nas espécies da EEP. As diferenças no teor de Ca refletiram a maior disponibilidade do nutriente no solo. Não houve diferenças nas concentrações foliares de P e Mg. O teor médio de N foi maior na floresta FEG do que na EEP, apenas em espécies exclusivas. As concentrações de Mn foram menores na EEP, refletindo a influência do pH na absorção deste nutriente. Assim, a ocorrência de espécies presentes exclusivamente na EEP pode estar associada à capacidade de absorver K e Mg de solos com altos teores de Ca.Palavras-chave -acumuladoras de alumínio, calcícolas, concentração foliar de nutrientes, fertilidade do solo, floresta tropical

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Section: Discussionunclassified

Section: Introductionunclassified

Perfil nutricional de espécies lenhosas de duas florestas semidecíduas em Uberlândia, MG

Haridasan

Araújo

2005

Rev. bras. Bot.

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“…These plants grow on the acidic and Al-rich soils from the cerrado and are known as Al-accumulating and non-accumulating species. They co-occur in the typical savanna-type vegetation, the cerrado sensu stricto (Haridasan 1982) and cerradão (dense cerrado) (Haridasan and Araújo 1988), and also in semi-deciduous forests Haridasan 1997, Haridasan andAraújo 2005) and gallery forests (Nascimento and Hay 1990).…”

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“…Al-accumulating plants show 1000 to 15000 mg Al kg -1 LDM (leaf dry mass), whereas nonaccumulating plants store between 100 and 600 mg Al kg -1 LDM (Haridasan 1982, Jansen et al 2002a. Despite the large number of woody species in the cerrado (1000 -2000) (Ratter et al 2003), only some species from few families have been identified as Al-accumulating plants in the cerrado sensu stricto: Miconia sp., Palicourea rigida, Qualea sp.…”

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

Souza

Bueno

Morellato

et al. 2015

An. Acad. Bras. Ciênc.

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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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Adaptation of Plants to Atmospheric Pollutants

Hutchinson

1984

Ciba Foundation Symposium 102 ‐ Origins and Development of Adaptation

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Aluminium accumulation by some cerrado native species of central Brazil

Cited by 167 publications

References 10 publications

Perfil nutricional de espécies lenhosas de duas florestas semidecíduas em Uberlândia, MG

Perfil nutricional de espécies lenhosas de duas florestas semidecíduas em Uberlândia, MG

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

Adaptation of Plants to Atmospheric Pollutants

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