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X-ray spectroscopy unfolding the effects of glyphosate on soybean manganese foliar uptake

Grant number: 18/13401-7
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): November 01, 2018
Effective date (End): June 30, 2020
Field of knowledge:Agronomical Sciences - Agronomy
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Hudson Wallace Pereira de Carvalho
Grantee:Bianca de Almeida Machado
Host Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated research grant:15/05942-0 - Shedding light on the metabolism of nanomaterials absorbed by plants with X-ray and vibrational spectroscopy, AP.JP

Abstract

Soybean represents 9% of the whole agricultural area worldwide, being Brazil, United States of America and Argentina responsible for more than 65% of its production. Many technologies worked together to made its expansion possible to the tropics, highlighting breeding programs and nutritional developments. It is thanks to it that soybean area and yield increased intensively over the last 50 years in Brazil, being this culture, nowadays, responsible for more than 9% of the whole Brazilian exports market share. When the first genetically modified herbicide tolerant (GM HT) soybean was released, a remarkable step of the agricultural history was given. Almost 20 years later, in 2014, GM HT soybeans represents 95% of the whole planted area and is considered a great responsible to ensured glyphosate the tittle of the most successful pesticide in history. Because this technology provides an easier weed managing, it turns soybean into a more profitable culture and also provides higher yields. The nutritional management plays an important role on soybean production as well. A large parcel of the increased crop yield in Brazil in the last 20 years is due to the use of micronutrients. Manganese importance has increased among the micronutrients, due its usual deficiency which has been seen in soybean fields. This nutrient become unavailable for roots' uptake in high pH conditions in the soil, hence, foliar application is a more efficient alternative. The adoption of Mn foliar fertilizers reduces the use of Mn based resources in more than 422 thousand tons worldwide, which represents an economy of 91.25%. Manganese visual deficiencies has coincided with herbicide applications, mainly with the use of glyphosate, hence, it is very common to mix these products into the application tank before the pulverization. This practice is interesting because it reduces the mechanized operations in the field, and the emission of greenhouse gases into the environment. Studies have been shown antagonist interactions between Mn and glyphosate when they are mixed in the tank, however, the real chemical interactions between them, both in the application tank and in plant, still remain unclear. The goals of this study is to apply x-ray spectroscopy techniques to bring a better understanding about Mn and glyphosate interactions. X-ray fluorescence and absorption spectroscopy techniques will be applied to evaluate their interactions within the plant, by monitoring Mn absorption, kinetics, redistribution and chemical form with or without Glyphosate. Also we aim to characterize their chemical form when mixed in a solution.

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FERESIN GOMES, MARCOS HENRIQUE; CALLAGHAN, CIARAN; SIPANO MENDES, ANTONIO CESAR; EDLER, KAREN J.; MATTIA, DAVIDE; DE JONG VAN LIER, QUIRIJN; PEREIRA DE CARVALHO, HUDSON WALLACE. Cellulose Microbeads: Toward the Controlled Release of Nutrients to Plants. ACS AGRICULTURAL SCIENCE & TECHNOLOGY, v. 2, n. 2, p. 9-pg., . (18/13401-7, 15/19121-8, 15/05942-0)
MACHADO, BIANCA A.; GOMES, MARCOS H. F.; MARQUES, JOAO P. R.; OTTO, RAFAEL; DE CARVALHO, HUDSON W. P.. X-ray Spectroscopy Fostering the Understanding of Foliar Uptake and Transport of Mn by Soybean (Glycine max L. Merril): Kinetics, Chemical Speciation, and Effects of Glyphosate. Journal of Agricultural and Food Chemistry, v. 67, n. 47, p. 13010-13020, . (18/13401-7, 15/05942-0, 15/19121-8)
GOMES, MARCOS HENRIQUE FERESIN; DE ALMEIDA MACHADO, BIANCA; MARQUES, JOAO PAULO RODRIGUES; OTTO, RAFAEL; EICHERT, THOMAS; PEREIRA DE CARVALHO, HUDSON WALLACE. Foliar Application of Zn Phosphite and Zn EDTA in Soybean (Glycine max(L.) Merrill): In Vivo Investigations of Transport, Chemical Speciation, and Leaf Surface Changes. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION, v. 20, n. 4, p. 2731-2739, . (15/19121-8, 18/13401-7, 15/05942-0)
GOMES, MARCOS H. F.; MACHADO, BIANCA A.; RODRIGUES, EDUARDO S.; MONTANHA, GABRIEL SGARBIERO; ROSSI, MONICA LANZONI; OTTO, RAFAEL; LINHARES, FRANCISCO S.; CARVALHO, HUDSON W. P.. In Vivo Evaluation of Zn Foliar Uptake and Transport in Soybean Using X-ray Absorption and Fluorescence Spectroscopy. Journal of Agricultural and Food Chemistry, v. 67, n. 44, p. 12172-12181, . (18/13401-7, 15/05942-0)
GOMES, MARCOS HENRIQUE FERESIN; DE ALMEIDA MACHADO, BIANCA; MARQUES, JOAO PAULO RODRIGUES; OTTO, RAFAEL; EICHERT, THOMAS; PEREIRA DE CARVALHO, HUDSON WALLACE. Foliar Application of Zn Phosphite and Zn EDTA in Soybean (Glycine max(L.) Merrill): In Vivo Investigations of Transport, Chemical Speciation, and Leaf Surface Changes. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION, v. 20, n. 4, p. 9-pg., . (15/05942-0, 18/13401-7, 15/19121-8)
MACHADO, BIANCA DE ALMEIDA; FERESIN GOMES, MARCOS HENRIQUE; DE ALMEIDA, EDUARDO; OTTO, RAFAEL; KAMOGAWA, MARCOS YASSUO; PEREIRA DE CARVALHO, HUDSON WALLACE. Understanding the chemistry of manganese fertilizers and glyphosate mixtures by using synchrotron X-ray spectrometry. SN APPLIED SCIENCES, v. 2, n. 11, p. 12-pg., . (15/05942-0, 18/13401-7)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MACHADO, Bianca de Almeida. X-ray spectroscopy unfolding the effects of glyphosate on soybean (Glycine max L.) manganese foliar uptake. 2020. Master's Dissertation - Universidade de São Paulo (USP). Centro de Energia Nuclear na Agricultura (CENA/STB) Piracicaba.

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