Microprobe-XRF Assessment of Nutrient Distribution in Soybean, Cowpea, and Kidney Bean Seeds: A Fabaceae Family Case Study

Autor(es)

Montanha, Gabriel Sgarbiero ; Zachi Romeu, Sara Luiza ; Rodrigues Marques, Joao Paulo ; Rohr, Livia Araujo ; de Almeida, Eduardo ; dos Reis, Andre Rodrigues ; Linhares, Francisco Scaglia ; Sabatini, Sabrina ; Pereira de Carvalho, Hudson Wallace

• Tipo de documento: Artigo Científico
• Fonte: ACS AGRICULTURAL SCIENCE & TECHNOLOGY; v. 2, n. 6, p. 7-pg., 2022-12-05.

Resumo

The present study explored microprobe X-ray fluorescence (XRF) spectroscopy for quantitative and space-resolved distribution of macro, i.e., potassium (K), phosphorus (P), sulfur (S), and calcium (Ca), and micronutrients, i.e., iron (Fe), zinc (Zn), and manganese (Mn) elemental composition in the cross-sectioned seeds of cowpea (Vigna unguiculata L.), kidney bean (Phaseolus vulgaris L.), and soybean (Glycine max L.) seeds, which are important agricultural species within the Fabaceae family. It unveils that both macro and micronutrients were heterogeneously distributed across seed tissues. Most of the P and S, Fe, Zn, and Mn were mainly found at the embryo axis tissues in all three Fabaceae species, whereas K was spread along the cotyledon and Ca was mostly observed trapped at the seed coat region. Furthermore, the Pearson correlation coefficient revealed a strong spatial correlation between P and S, and K and S in cowpea and soybean seed tissues, whereas Zn and Mn association was also recorded. Therefore, the mu-XRF technique is an important tool for assessing seed nutrient distribution, thus subsidizing the physiological role of nutrients in seeds and fostering innovative approaches for nutrient supply and biofortification. (AU)

• Processo FAPESP: 20/07721-9 - Caracterização elementar e molecular das proteínas de reserva durante o desenvolvimento de sementes de soja: uma estratégia para aumentar a quantidade e qualidade proteica
• Beneficiário: Gabriel Sgarbiero Montanha
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 19/17967-8 - Tratamento de sementes de soja com zinco: absorção e distribuição durante a germinação e desenvolvimento das plântulas, avaliada por espectroscopia de Raios X, e sua relação com o desempenho das plantas
• Beneficiário: Lívia Araújo Rohr
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 15/19121-8 - EMU concedido no processo 2015/05942-0: sistema de microfluorescência de Raios X
• Beneficiário: Hudson Wallace Pereira de Carvalho
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários