Clonal variation in growth, arsenic and heavy metal uptakes of hybrid Eucalyptus clones in a Mediterranean environment

Mughini, G.; Alianiello, Francesco; Benedetti, A.; Gras, Lapo Mughini; Gras, Maria; Salvati, Luca

doi:10.1007/s10457-013-9594-0

Cited by 29 publications

(13 citation statements)

References 25 publications

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“…J.B. Kirkp., named Velino and Viglio (Mughini et al 2013), were grown during summer under shaded greenhouse in hydroponics with thirdstrength Hoagland's nutrient solution, pH 6.5. Homogeneous grown plants were utilised for the experiment.…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

“…In particular, Eucalyptus species have been reported to cope well with environmental constraints such as severe saline and drought conditions, maintaining high transpiration rates (Harfouche et al 2014). Moreover, growth responses of eucalypt plants to the presence of heavy metals, both in laboratory and field conditions, have been described (Fine et al 2013, Mughini et al 2013, highlighting good perspectives for their utilisation for phytoremediation (Dhillon et al 2008. To this scope, besides the adaptability to different pedoclimatic conditions, the selection of genotypes characterised by particular traits linked to metal tolerance and accumulation has been suggested (Pietrini et al 2010, Zhivotovsky et al 2011.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of biometric, physiological, and biochemical traits to evaluate the cadmium phytoremediation ability of eucalypt plants under hydroponics

Iori¹,

Pietrini²,

Bianconi³

et al. 2017

iForest

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(1) Wastewater reclamation and reuse represent a feasible solution to meet the growing demand for safe water. An environmentally sustainable technology such as phytoremediation is targeted for the reclamation of polluted waters. To this end, the capability of different plant species to tolerate and accumulate pollutants has to be investigated. In this work, eucalypt plants were studied by analysing biometric, physiological, and biochemical parameters related to cadmium (Cd) tolerance and accumulation in two clones ("Velino ex 7" and "Viglio ex 358") of Eucalyptus camaldulensis Dehnh. × E. globulus subsp. bicostata (Maiden, Blakely & J.Simm.) J.B. Kirkp exposed to 50 μM CdSO4 under hydroponics for three weeks. The results indicated that both eucalypt clones have a valuable tolerance to cadmium, expressed as the tolerance index (Ti). Biometric investigations showed that, regardless of the clone, the metal exposure affected most parameters related to biomass allocation and leaf growth. On the contrary, significant differences were found between the clones with respect to the chlorophyll content and the Chl a to Chl b ratio. These findings were also confirmed from the analysis of chlorophyll fluorescence transient (OJIP) using the JIP test. Cadmium accumulation occurred in both clones and in particular in the roots, with a poor amount of metal reaching the aerial parts, and the Velino clone showed the highest Cd accumulation. The metal uptake ratio and the phytoextraction efficiency highlight a good Cd phytoremoval ability, especially for the Velino clone. The results are discussed taking into account that, in wastewater phytoremediation systems, root biomass can be completely harvested allowing for the removal of the absorbed metal. Finally, the notable tolerance to submersion and the large environmental adaptability of eucalypt suggest that this plant species represents an interesting candidate for the phytoremediation of Cd-polluted wastewaters.

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Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of biometric, physiological, and biochemical traits to evaluate the cadmium phytoremediation ability of eucalypt plants under hydroponics

Iori¹,

Pietrini²,

Bianconi³

et al. 2017

iForest

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“…It is also reported that eucalypts are suited to plantation of degraded lands, reducing pollutant availability and leaching and, consequently, increasing soil stabilisation (King et al, 2008). Interesting perspectives of eucalypt species for the reclamation of sewage effluents, municipal wastewater, organic and heavy metalcontaminated substrates have been reported (Rockwood et al, 2004;Langholtz et al, 2005;Dhillon et al, 2008;Asensio et al, 2013;Fine et al, 2013;Mughini et al, 2013). Even so, little information is available in the literature on the potential of eucalypt for Cd phytoremediation, in particular for the restoration of contaminated waters.…”

Section: Introductionmentioning

confidence: 99%

Assessment of physiological and biochemical responses, metal tolerance and accumulation in two eucalypt hybrid clones for phytoremediation of cadmium-contaminated waters

Pietrini

Iori

Bianconi

et al. 2015

Journal of Environmental Management

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“…Apesar de que os resultados de acúmulo de cromo na parte aérea de eucalipto não se destacaram das outras espécies o que pode estar relacionado ao maior acúmulo do metal na raiz (não avaliado nesse estudo). Mughini et al (2013) relataram que o eucalipto acumula uma quantidade considerável de cromo nos tecidos, mas enfatizam que a compartimentalização do metal pode ser influenciada pelas condições ambientais no seu cultivo. Espécies florestais podem ser usadas na fitorremediação de solos contaminados com potencial para extrair metais pesados do solo.…”

Section: Resultsunclassified

Crescimento e fitoextração em espécies em espécies florestais após adição de lodo de curtume no substrato

Silva¹,

Araújo²,

Araújo³

2016

Sci. For.

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ResumoEste trabalho teve como objetivo avaliar o crescimento das mudas de espécies florestais após a adição do lodo de curtume como componente de substrato comercial, na produção de quatro espécies nativas: angico vermelho (Anadenanthera colubrina), angico branco (Anadenanthera macrocarpa), aroeira salsa (Schinus mole), mutambo (Guanzuma ulmifolia) e uma exótica: eucalipto (Eucalyptus urophylla) como também avaliar a fitoextração de nutrientes e de cromo do substrato. Foram avaliadas cinco doses: 5, 10, 15, 20 e 25% de lodo curtume na composição do substrato comercial a base de casca de pinus. Após a semeadura no substrato acondicionado em tubetes, de acordo com cada tratamento, foi acompanhado o desenvolvimento das mudas, durante 120 dias, com avaliações de diâmetro de colo e de produção de biomassa no sistema radicular e parte aérea das nas plantas, como também foram avaliados os teores de macro e micronutrientes, acúmulo de cromo no tecido foliar e teor final de cromo no substrato. As espé-cies de aroeira salsa, eucalipto e mutambo responderam positivamente à adição de até 25% de lodo de curtume no substrato. Sendo que a aroeira salsa apresentou a maior capacidade de absorção de cromo na parte aérea e também se destacou como a espécie de melhor crescimento em resposta a adição do lodo no substrato. O teor de cromo no substrato foi reduzido após o crescimento das mudas, sendo menor quando se produziu o eucalipto. Palavras-chave: Resíduos orgânicos; reciclagem; cromo. AbstractThis study aims to evaluate the use of tannery sludge as a component of commercial substrate, to produce seedlings for reforestation of four native species: Anadenanthera colubrina; Anadenanthera macrocarpa; Schinus mole; Guanzuma ulmifolia) and one exotic species: Eucalyptus urophylla; and also to evaluate the removal of nutrients and chromium from the substrate. This study evaluated the incorporation of five doses (5, 10, 15, 20 and 25%) of tannery sludge used in commercial substrate for growth of different native and exotic species suitable for reforestation. The experiment was conducted in greenhouse seedling growth. After sowing into substrate in tubes, each treatment was examined for plant development for 120 days, with periodic assessment of height and final evaluation of biomass (roots and shoots) in plants; contents of macro and micronutrients and accumulation of chromium in the leaf tissue was also examined. Three forest species responded positively to the addition of up to 25% of tannery sludge on the substrate to produce seedlings. Schinus mole showed a high absorption of chromium into the shoot and also provided the best growth in response to sludge addition on the substrate. Chromium content in the substrate was reduced after cultivation of forest species, with emphasis on the performance found by eucalyptus seedlings.Keywords: Organic waste; recycling; chromium. INTRODUÇÃOO lodo é um resíduo sólido produzido após o tratamento de águas residuárias que podem ter origem agroindustrial ou urbana. O aumento da urbanização e indu...

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Clonal variation in growth, arsenic and heavy metal uptakes of hybrid Eucalyptus clones in a Mediterranean environment

Cited by 29 publications

References 25 publications

Analysis of biometric, physiological, and biochemical traits to evaluate the cadmium phytoremediation ability of eucalypt plants under hydroponics

Analysis of biometric, physiological, and biochemical traits to evaluate the cadmium phytoremediation ability of eucalypt plants under hydroponics

Assessment of physiological and biochemical responses, metal tolerance and accumulation in two eucalypt hybrid clones for phytoremediation of cadmium-contaminated waters

Crescimento e fitoextração em espécies em espécies florestais após adição de lodo de curtume no substrato

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