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dc.creatorPereira, Marcio Paulo-
dc.creatorRodrigues, Luiz Carlos de Almeida-
dc.creatorCorrêa, Felipe Fogaroli-
dc.creatorCastro, Evaristo Mauro de-
dc.creatorRibeiro, Vinícius Erlo-
dc.creatorPereira, Fabricio José-
dc.identifier.citationPEREIRA, M. P. et al. Cadmium tolerance in Schinus molle trees is modulated by enhanced leaf anatomy and photosynthesis. Trees: structure and function, Berlin, v. 30, n. 3, p. 807-814, June 2016.pt_BR
dc.description.abstractThis work is aimed to evaluate the effects of cadmium (Cd) on leaf anatomy and photosynthesis in Schinus molle, a species that can cope with harsh environments. Seven-month-old S. molle plants were exposed over 90 days to varying Cd concentrations (0, 10, 20, 50, 125 or 250 µM using Cd(NO3)2 as the Cd source). The plants were placed in vases containing washed sand and vermiculite as the substrate and nutrient solution. Throughout the experiment, the substrate was maintained at field capacity, and the nutrient solution was replaced at 15-day intervals. After 90 days, leaves were collected and processed for anatomical analysis using typical plant microtechniques. In addition, plant growth, photosynthesis, chlorophyll content and A/Ci curve were evaluated using an infrared gas analyzer. S. molle growth was not affected by Cd. Lower Cd concentrations (10 and 20 µM) resulted in greater net photosynthesis, stomatal conductance and density, Vcmax, Jmax and mesophyll thickness. However, Cd concentrations of 50 µM or greater resulted in a reduction of most of the evaluated characteristics to levels close to control. All of the tested Cd concentrations resulted in reduced chlorophyll content and stomatal size. Therefore, the effect of Cd in a tolerant species such as S. molle is concentration dependent, and at low Cd concentrations, these plants can cope with the toxicity by adjusting leaf structure and function.pt_BR
dc.sourceTrees: structure and functionpt_BR
dc.subjectPlants – Effect of cadmiumpt_BR
dc.subjectHeavy metalspt_BR
dc.subjectPlantas – Efeito do cádmiopt_BR
dc.subjectMetais pesadospt_BR
dc.subjectSchinus mollept_BR
dc.titleCadmium tolerance in Schinus molle trees is modulated by enhanced leaf anatomy and photosynthesispt_BR
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