Soil conditions and evolution of aluminium resistance among cultivated and wild plant species on the Island of Madeira

Ganança, José Filipe Teixeira; Abreu, Ivo; Sousa, N.; Paz, R.F.; Caldeira, P.; Santos, Teresa M. M. dos; Costa, Graça; Śląski, Jan; Carvalho, M. A. A. Pinheiro de

doi:10.17221/2218-pse

Cited by 8 publications

(8 citation statements)

References 25 publications

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“…platyphylla , which is also a native species of the Canaries, may exhibit a similar Al‐accumulator behaviour, as it has foliar levels similar to those of I. canariensis (Köhl et al , 1996). The large bioavailability of Al in non‐allophanic Andosols has been reported to be equally responsible for the appearance of Al‐resistant varieties in crops and flora in the nearby archipelago of Madeira (Ganança et al , 2007).…”

Section: Discussionmentioning

confidence: 99%

The role of metals in soils and accumulation in the laurel forest of La Gomera (Canary Islands, Spain): preliminary results

Mora

Arbelo

Rodríguez-Rodríguez

et al. 2012

European J Soil Science

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The present study investigated the content of Al and various heavy metals (Cr, Cu, Fe, Mn, Ni and Zn) in soils and plant tissues of a sub‐tropical laurel forest in the Canary Islands and their relationship to the composition and structure of the forest. The content of different Al‐fractions and bioavailable (NH4Ac‐EDTA extractable) metals was analysed in a large number of soil samples and related to lithological and topographic factors. Seasonal variation of the metal content in the soil, phytomass and litter was studied at sites with different degrees of maturity or sites affected by forest dieback. Extremely large contents of bioavailable Al, Fe and Mn were observed in soils. The Al and Mn contents exert a considerable influence on ecosystem composition. The results of this study reveal the bioaccumulation of Al in Ilex canariensis Poir. and Viburnum rigidum Vent. and suggest the accumulation of Mn in Laurus novocanariensis Rivas Mart. The bioaccumulation patterns of Al were closely related to the NH4Ac‐EDTA‐extractable soil content but not as closely tied to KCl‐extractable Al, suggesting the greater importance of humic complexes in the regulation of aluminium toxicity in comparison with hydroxy‐Al interlayered 2:1 silicates. Bioaccumulation gives rise to Al‐rich litterfall inputs, allowing the exclusion of Al‐intolerant species from the understory or neighbouring vegetation.

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Section: Discussionmentioning

confidence: 99%

The role of metals in soils and accumulation in the laurel forest of La Gomera (Canary Islands, Spain): preliminary results

Mora

Arbelo

Rodríguez-Rodríguez

et al. 2012

European J Soil Science

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“…Species differ widely in their physiological tolerance to acidic soils, and only a few species can become established and survive on the most acidic soils (Falkengren-Grerup and Tyler 1993a, b;Delhaize and Ryan 1995;Falkengren-Grerup 1995;You et al 2005;Gananca et al 2007;Poozesh et al 2007). It is possible that nontolerant species lack the genetic variation necessary to increase their tolerance to lower soil pH (Macnair 1987;Al-Hiyaly et al 1990;Bradshaw 1991) or that genetic trade-offs between performance in favorable and stressful soil environments prevent populations from exploiting more acidic soils (Via and Lande 1985; see also Harper et al 1997;Dechamps et al 2008;Eränen 2008).…”

Section: Introductionmentioning

confidence: 99%

Genetic adaptation to soil acidification: experimental evidence from four grass species

2008

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Anthropogenic acidification has reduced soil pH and released potentially toxic aluminium (Al) ions in many regions. This investigation examines whether increased acidity has caused genetic adaptation to acidic conditions within the grass species Elymus caninus, Poa nemoralis, Deschampsia cespitosa and D. flexuosa. We sampled tussocks (genets) of each species in two regions of southern Sweden, differing in their exposure to acidifying deposition. The tolerance of the genets was tested in a solution experiment with different pH and Al concentrations. Our data suggest that species found at lower pH field locations have a greater tolerance to low pH and high Al levels than species found on less acidic soils. Analysis of variance showed a significant average effect of population and (or) genet in most species; however, we found little evidence of genetic adaptation to acidic conditions at the regional, population and micro-site level. In fact, there was no consistent change in the ranking of populations or genets with varying pH or Al concentration. Based on these results, we hypothesize that phenotypic plasticity rather than genetic adaptation has been favoured as the predominant mechanism to cope with soil acidity in the four grass species.

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“…Even at pH 4.4 on sod podzolic soils of the Krasnoyarsk Krai, the exchangeable aluminum content reaches a value of only 0.079 mg/100 g (Tandelov, 2012). Although the Siberian soils contain relatively large amounts of organic matter compared to the soils of the European Non Chernozem zone, the data obtained by Gananca et al (2007), for example, indicate that the level of alu minum tolerance is not correlated to the organic mat ter content for the cultivated grain crops. It is known, however, that plants adapt to acid stress and the toxic ity of aluminum by the same mechanisms (Sawaki et al, 2009).…”

Section: Resultsmentioning

confidence: 97%

Genetic variability of spring common wheat varieties in aluminum tolerance

Lisitsyn

Амунова

2015

Russ J Genet Appl Res

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The spring common wheat varieties display broad genotypic diversity in response to the stress impact of aluminum ions. The investigated set of varieties contained no susceptible ones. Moderately tolerant varieties constituted about 63%, and highly tolerant, about 25.5%. The remaining 11.5% varieties were mod erately susceptible to aluminum treatment. Examples of spring common wheat have different levels of alumi num tolerance, irrespective of sampling locality. The set of wheat varieties showed significant genetic diversity in the manifestation of the response of chloroplast pigments to the stressor. The structure functional rear rangement of the leaf pigment apparatus was variety specific. It did not show strong relation to the level of aluminum tolerance in the root systems. Cluster analysis divided the entire set of varieties into five groups with different combinations of root length and plant vigor both in the control and in the presence of alumi num. The authors suggest that the increase in aluminum tolerance in spring common wheat varieties occurs indirectly alongside the breeding aimed at increasing plant tolerance to abiotic environmental factors.

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Soil conditions and evolution of aluminium resistance among cultivated and wild plant species on the Island of Madeira

Cited by 8 publications

References 25 publications

The role of metals in soils and accumulation in the laurel forest of La Gomera (Canary Islands, Spain): preliminary results

The role of metals in soils and accumulation in the laurel forest of La Gomera (Canary Islands, Spain): preliminary results

Genetic adaptation to soil acidification: experimental evidence from four grass species

Genetic variability of spring common wheat varieties in aluminum tolerance

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