Selenium Increases Ureide Metabolism and Yield of Cowpea Plants: Examining Se Distribution in Leaves and Seeds Using Microprobe X-Ray Fluorescence Spectroscopy

Mendes, Nandhara Angélica Carvalho; Lanza, Marcos R. V.; Silva, Vinícius Martins; Bosse, Marco Antônio; Montanha, Gabriel Sgarbiero; Carvalho, Hudson Wallace Pereira de; Cunha, Matheus Luís Oliveira; Reis, André Rodrigues dos

doi:10.1007/s10343-023-00840-5

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“…Hence, to assess whether the effects observed on germination are related to seed Fe-based priming, both benchtop and synchrotron-based micro and nanoprobe X-ray fluorescence spectroscopy (XRF) were employed to assess the Fe localization throughout the cucumber seed tissues. XRF is a powerful analytical tool that has been widely explored in a myriad of seeds, such as maize, , soybeans, ,, kidney beans, , cowpea, , and tomato …”

Section: Results and Discussionmentioning

confidence: 99%

Facilitating Seed Iron Uptake through Amine-Epoxide Microgels: A Novel Approach to Enhance Cucumber (Cucumis sativus) Germination

Alves,

Andrada,

Fico

et al. 2024

J. Agric. Food Chem.

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Enhancing the initial stages of plant growth by using polymeric gels for seed priming presents a significant challenge. This study aimed to investigate a microgel derived from polyetheramine-poly(propylene oxide) (PPO) and a bisepoxide (referred to as micro-PPO) as a promising alternative to optimize the seed germination process. The micro-PPO integrated with an iron micronutrient showed a positive impact on seed germination compared with control (Fe solutions) in which the root length yield improved up to 39%. Therefore, the element map by synchrotron-based X-ray fluorescence shows that the Fe intensities in the seed primers with the micro-PPO-Fe gel are about 3-fold higher than those in the control group, leading to a gradual distribution of Fe species through most internal embryo tissues. The use of micro-PPO for seed priming underscores their potential for industrial applications due to the nontoxicity results in zebrafish assays and environmentally friendly synthesis of the water-dispersible monomers employed.

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