High copper content in vineyard soils promotes modifications in photosynthetic parameters and morphological changes in the root system of 'Red Niagara' plantlets

Plant Physiology and Biochemistry : PPB
Vítor Gabriel AmbrosiniGustavo Brunetto

Abstract

High copper (Cu) soil contents, due to the continuous vineyard application of Cu fungicides throughout the years, may impair the growth of the shoot and modify the structure of the root system. The current study aimed to investigate the threshold levels of available Cu in the soil causing toxicity effects in young grapevine plants of 'Red Niagara' cultivated in clay soils. Grapevine plantlets were cultivated in pots containing vineyard devoted soils with increasing contents of available Cu (25, 80, 100 and 165 mg kg-1), for 53 days. Photosynthesis and transpiration rates, and the quantum yield of photosystem II (Fv/Fm) were evaluated during the cultivation period. At the end of the experiment, the plant nutrient and leaf chlorophyll were determined, along with the anatomical analysis of the root system structure and plant dry matter determination. Higher levels of available Cu in the soil increased the apoplastic, symplastic and total fraction of the metal in the roots, reducing the other nutrients, especially in the shoots. Photosynthesis, transpiration rates and Fv/Fm were also reduced. Higher levels of Cu led to anatomical changes in the roots, that increased diameter, number of layers in the cortex, vascular cylinder and to...Continue Reading

Citations

Jan 8, 2020·Environmental Science and Pollution Research International·Eleonora CoppaEnrico Santangelo
Jun 18, 2020·Frontiers in Plant Science·Bilal A RatherNafees A Khan
Apr 18, 2019·Bulletin of Environmental Contamination and Toxicology·Kai-Wei JuangBo-Ching Chen
Apr 9, 2021·Ecotoxicology and Environmental Safety·Raíssa SchwalbertFernando Teixeira Nicoloso
Oct 29, 2020·Plant Physiology and Biochemistry : PPB·Sebastian B FeilStefano Cesco
Apr 29, 2021·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Anayat Rasool MirShamsul Hayat
Mar 14, 2021·Environmental Science and Pollution Research International·Zheng LiuGuohu Zhao

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