Evaluating wild grapevine tolerance to copper toxicity

Abstract

populations from a copper contaminated site and an uncontaminated site, and in the 54 grapevine rootstock "41B", investigating the effects of copper (0-23 mmol l -1 ) on 55 growth, photosynthetic performance and mineral nutrient content. The highest Cu 56 treatment induced nutrient imbalances and inhibited photosynthetic function, causing a 57 drastic reduction in growth in the three study plants. Effective concentration was higher 58 than 23 mmol l -1 Cu in the wild grapevines and around 9 mmol l -1 in the "41B" plants. 59The wild grapevine accessions studied controlled root Cu concentration more efficiently 60 than is the case with the "41B" rootstock and must be considered Cu-tolerant.

Interaction between arbuscular mycorrhizal fungi and vermicompost on copper phytoremediation in a sandy soil

“…Increases in minimal fluorescence (Fo) result from the destruction of photosystem II (PSII) reaction centers or decreased transfer of excitation energy to the reaction center caused by excess Cu in the plant tissues (Baker and Rosenqvst, 2004). Cu toxicity causes degradation of the chloroplast's internal content and substitution of Mg by Cu in chlorophylls, and decreased PSII maximum quantum yield (Fv/Fm) and effective quantum efficiency (Y(II)) due to Cu toxicity have been previously reported (Cambrollé et al, 2015). Plants exhibiting Fv/Fm close to 0.85, with some variation for different plant species, are considered healthy (Kalaji and Guo, 2008).…”

Reduction of copper phytotoxicity by liming: A study of the root anatomy of young vines ( Vitis labrusca L.)

“…A C C E P T E D ACCEPTED MANUSCRIPT 3 accumulation occurs in response to oxidative stress caused by heavy metals (Michalak, 2006), which can reduce the concentration of pigments and rate of photosynthesis, inhibiting the growth and development of the shoots (Cambrollé et al, 2015). Because phenolic compounds present high reactivity to heavy metals, their actions may be similar to chelating agents within the plant; combined with their antioxidant properties, this pattern makes the accumulation of these compounds an important tool for combating oxidative stress (Michalak, 2006).…”

“…Dandy (Kopittke et al, 2009), Arabidopsis thaliana (Lequeux et al, 2010), K. stipulacea (Maxim.) Makino (Zhang et al, 2014) and even vines (Toselli et al, 2009;Juang et al, 2014;Chen et al, 2013;Cambrollé et al, 2015).…”

Parâmetros fisiológicos em videiras ‘Paulsen 1103’ (Vitis berlandierixVitis rupestris) inoculadas com fungos micorrízicos arbusculares em solo contaminado com cobre

“…Poderão ser afetados os parâmetros relacionados com o crescimento, dentre eles, altura das plantas, área foliar, acúmulo de biomassa e o número de folhas emitidas (Cambrollé et al, 2015).…”