Evaluation of connected clonal growth of <i>Solidago chilensis</i> as an avoidance mechanism in copper-polluted soils

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dc.contributor.authorLillo, Felipe
dc.contributor.authorGinocchio, Rosanna
dc.contributor.authorUlriksen, Christopher
dc.contributor.authorDovletyarova, Elvira A.
dc.contributor.authorNeaman, Alexander
dc.date.accessioned2025-01-23T21:12:34Z
dc.date.available2025-01-23T21:12:34Z
dc.date.issued2019
dc.description.abstractPlant resistance to metals can be achieved by two strategies, tolerance and avoidance. Although metal tolerance has been broadly studied in terrestrial plants, avoidance has been less considered as a strategy to cope with soil metal pollution. Avoidance may be an effective alternative in herbaceous plants with connected clonal growth in environments having high heterogeneity in soil micro-spatial distribution of available metals and other soil conditions (i.e. organic matter). In this study, we performed a laboratory experiment on clonal growth of Solidago chilensis when exposed to copper-spiked soils (800 mg kg(-1)) at different depths (0, 2, 5 and 8 cm depth), with (20%) and without addition of organic matter to mimic contrasting microhabitats found at smelter hinterlands (i.e. open bare ground and microhabitats below shrubs). Results showed that plants grown in the 2 cm-depth Cu-spiked soils were able to growth and produce ramets and rhizomes. However, increased Cu uptake of plants determined phytotoxic effects and a reduction in clonal spread in the 5 cm- and 8 cm-depth Cu-spiked soils. Addition of organic matter to the Cu-spiked soil layers allowed clonal spread. Considering that ramet and rhizome production is decreased but not inhibited when copper pollution is restricted to the uppermost soil layer (2 cm depth) and that organic matter eliminated soil copper toxicity allowing normal clonal spread, connected clonal growth may be an effective avoidance mechanism of Solidago chilensis, particularly in environments with high heterogeneity in micro-spatial distribution of metals and organic matter in the soil profile and between microhabitats. (C) 2019 Elsevier Ltd. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.chemosphere.2019.04.199
dc.identifier.eissn1879-1298
dc.identifier.issn0045-6535
dc.identifier.urihttps://doi.org/10.1016/j.chemosphere.2019.04.199
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100961
dc.identifier.wosidWOS:000471736000033
dc.language.isoen
dc.pagina.final307
dc.pagina.inicio303
dc.revistaChemosphere
dc.rightsacceso restringido
dc.subjectVegetative growth
dc.subjectCopper smelter
dc.subjectSoil heterogeneity
dc.subjectMetal pollution
dc.subjectCopper toxicity
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleEvaluation of connected clonal growth of <i>Solidago chilensis</i> as an avoidance mechanism in copper-polluted soils
dc.typeartículo
dc.volumen230
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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