Exploratory analysis in the evaluation of stress due to aluminum presence in Physalis angulata L. and multielement deter

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RESEARCH ARTICLE

Exploratory analysis in the evaluation of stress due to aluminum presence in Physalis angulata L. and multielement determination by microwave-induced plasma optical emission spectrometry (MIP OES) Claudia B. de Abreu 1 & Marcos de O. Ribeiro 1 & Cyndi S. Pinho 1 & Candice N. Carneiro 2 & André D. de Azevedo Neto 2 & Manuela O. de Souza 2 & Fabio de S. Dias 3 Received: 5 May 2020 / Accepted: 15 September 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020

Abstract The present work aimed to analyze the mineral nutrition of Physalis angulata L. under stress by aluminum in the nutrient solution. The treatments consisted of five different concentrations of aluminum in the nutrient solution (0, 0.04, 0.08, 0.12, and 0.16 mmol L−1) in the AlCl3 form. The plants were exposed to Al for 30 days. Subsequently, nutritional and aluminum analyses were performed on plant tissue. The data were submitted to analysis of variance (p < 0.05), and, in case of significance, the regression study was performed as well as hierarchical cluster analysis (HCA) and principal component analysis (PCA) were used. The formation of four groups occurred, where we can observe the similarity and differences in the treatments between them. The separation of the treatments into groups reflected the heterogeneity of the treatments about the aluminum levels in the nutrient solution, evidencing its phytotoxicity level in Physalis angulata plants. Among the analyzed variables, P, K, Ca, Mg, Fe, Mo, and Zn were the most influential ones demonstrated by principal component analysis (PCA). The stress of 0.16 mmol L−1 of Al increased the phosphorus contents in the stems and roots and the potassium, copper, and molybdenum contents in all parts of the plants. In contrast, Al reduced the levels of calcium, magnesium, iron, and zinc in P. angulata plants. Iron being the micronutrient that showed the largest reduction, followed by zinc in the leaves. The highest levels of aluminum were found in the roots. Keywords Mineral nutrition . Aluminum . Abiotic stress . Tolerance . Exploratory analysis . Physalis angulata L

Introduction Aluminum is the third most abundant element in the earth's crust, right after oxygen and silicon (Ma et al.

Responsible editor: Gangrong Shi * Fabio de S. Dias [email protected] 1

Centro de Ciências Agrárias, Ambientais e Biológicas, Campus Universitário de Cruz das Almas, Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Bahia 44380-000, Brazil

2

Centro de Ciências Exatas e Tecnológicas, Campus Universitário de Cruz das Almas, Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Bahia 44380-000, Brazil

3

Universidade Federal da Bahia, Instituto de Ciências Tecnologia e Inovação, Campus Universitário de Camaçari, Camaçari, Bahia 42809-000, Brazil

2001), its toxicity is considered the main limiting factor of agricultural production in the soils used (Kochian et al. 2005) because the pH is low, Al3+ remains bound to the clay minerals, being dissolved in the soil solution and remaining avail