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Heredia Rivera B, Rodríguez MG, Rodríguez-Heredia M, Rodríguez-Heredia B, Barois I, González Segovia R. Characterisation by Excitation-Emission Matrix Fluorescence Spectroscopy of Pigments in Mucus Secreted of Earthworm Eisenia foetida Exposed to Lead. J Fluoresc 2020; 30:725-733. [PMID: 32410085 DOI: 10.1007/s10895-020-02533-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 04/02/2020] [Indexed: 11/29/2022]
Abstract
The earthworm exposed to toxics shows physiological responses as: avoidance and mucus secretion. Heavy metals are particularly toxic to earthworms and the mucus secretion has been considered as a defence mechanism against undesirable substance. The chromophores present in the mucus secretion of Eisenia foetida have been poorly studied. Mucus secretion of E. foetida was induced by PbCl2. High PbCl2 concentrations provoked abundant mucus secretion which showed fluorescence when illuminated by UV light. Dialysis membrane separation, UV Visible and Excitation-Emission Matrix Fluorescence (EEM) spectroscopy were used to characterise the fluorescent pigments. EEM spectroscopy analysis of the mucus secretion signalled three excitation-emission peaks at: 310/380 nm, 370/520 nm and 440/520 nm. Two fluorophores were separated by dialysis. One of them matched the fluorescent compound riboflavin excitation-emission profile; the other is a protein with a peak 290/350 nm. Native-PAGE electrophoresis was conducted to assess the riboflavin-biding ability of the coelomic fluid protein produced by Eisenia foetida showing a high riboflavin-biding ability.
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Affiliation(s)
- Birmania Heredia Rivera
- Physiology and Pharmacology Department, Center of Basic Sciences, Autonomous University of Aguascalientes, 940 Av. Universidad, Ciudad Universitaria, 20131, Aguascalientes, Mexico
| | - Martín Gerardo Rodríguez
- Physiology and Pharmacology Department, Center of Basic Sciences, Autonomous University of Aguascalientes, 940 Av. Universidad, Ciudad Universitaria, 20131, Aguascalientes, Mexico.
| | | | - Birmania Rodríguez-Heredia
- Physiology and Pharmacology Department, Center of Basic Sciences, Autonomous University of Aguascalientes, 940 Av. Universidad, Ciudad Universitaria, 20131, Aguascalientes, Mexico
| | - Isabelle Barois
- Departamento de Ecología Funcional, Instituto de Ecología, Mexico City, Mexico
| | - Rodolfo González Segovia
- Physiology and Pharmacology Department, Center of Basic Sciences, Autonomous University of Aguascalientes, 940 Av. Universidad, Ciudad Universitaria, 20131, Aguascalientes, Mexico
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Effects of chlorogenic acid on the binding process of cadmium with bovine serum albumin: A multi-spectroscopic and docking study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Bonamore A, Gargano M, Calisti L, Francioso A, Mosca L, Boffi A, Federico R. A Novel Direct Method for Determination of Riboflavin in Alcoholic Fermented Beverages. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0259-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nanocomplex formation between riboflavin and β-lactoglobulin: Spectroscopic investigation and biological characterization. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.03.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Co-purification of chicken egg white proteins using polyethylene glycol precipitation and anion-exchange chromatography. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.05.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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