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

Plant Physiology and Biochemistry : PPB
Vítor Gabriel AmbrosiniGustavo Brunetto

Abstract

Frequent applications of copper (Cu)-based fungicides on vines causes the accumulation of this metal in vineyard soils, which can cause toxicity in young vines. However, liming may reduce these toxic effects. The present study aimed to evaluate the effects of Cu toxicity on the root anatomy of young vines and the alleviation of Cu toxicity by lime applications to contaminated sandy soil. The treatments consisted of the addition of lime (0.0, 1.5 and 3.0 Mg ha(-1)) and two Cu concentrations (0 and 50 mg kg(-1)) to Typic Hapludalf soil. Young vines 'Niágara Branca' (Vitis labrusca L.) were obtained by micropropagation and cultivated for 70 days. The young vines grown with Cu and without liming presented a disorganized root structure; reduced root cap size; increased diameter (47%), cortex area (128%), vascular cylinder area (93%), and number of cortical layers and cells containing phenolic compounds (132%); and reduced root (41%), stem (44%) and leaf dry mass (21%) and height increase (55%). Moreover, Cu exposure reduced Ca concentrations (13%) and increased Cu concentrations (371%) in the roots. Liming, primarily with the highest tested dose, increased the soil pH (from 4.4 to 5.4-6.1), decreased the Cu concentration in the soil...Continue Reading

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Citations

Oct 26, 2016·Environmental Science and Pollution Research International·Suchismita Das, Sunayana Goswami
Jan 28, 2018·Scientific Reports·Franz Walter Rieger HipplerDirceu Mattos-Jr
Feb 6, 2020·Environmental Science and Pollution Research International·Isley Cristiellem Bicalho da SilvaGustavo Brunetto
Jan 1, 2021·International Journal of Phytoremediation·Lessandro De ContiGustavo Brunetto
Oct 29, 2020·Plant Physiology and Biochemistry : PPB·Sebastian B FeilStefano Cesco
Jul 3, 2021·International Journal of Environmental Research and Public Health·Yu-Shan YenHung-Yu Lai
Oct 12, 2021·Chemosphere·Paulo Ademar Avelar FerreiraLuiz Roberto Guimarães Guilherme

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