Effect of Trimethoprim on Glycogen Contents in Freshwater Mussels, <i>Lamellidens corrianus</i> (Lea) & <i>Parreysia cylindrica</i> (Annandale & Prashad)

Abstract

Freshwater bivalves, Lamellidens corrianus were exposed to acute dose of trimethoprim one of the ingredients of sulpha drug (174.80PPM) and Parreysia cylindrica (136.29PPM) up to 96 hours and chronic dose to Lamellidens corrianus of the same antibiotics (34.96 PPM) and to Parreysia cylindrica was (27.25 PPM) up to 21 days. After 24 and 96 hours of acute treatment and 7, 14 and 21 days of chronic treatment, the mantle, gills, foot, ovary, testis, digestive glands and whole body of the bivalves were separated, dried in the oven and their glycogen contents were estimated.Except gills, trimethoprim reduced the glycogen contents from most of the tissues of L. corrianus while in Parreysia cylindrica overall reduction in the glycogen depot was observed. The most affected tissue in which the great depletion observed was digestive glands.DOI: http://dx.doi.org/10.3126/ijls.v6i1.5767

Effect of starvation and subsequent feeding on glycogen concentration, behavior and mortality in the golden mussel Limnoperna fortunei (Dunker, 1857) (Bivalvia: Mytilidae

“…Because physiological stresses demand high consumption, the organism's metabolic rate increases and glycogen is quickly degraded and released, providing more energy to maintain vital processes (MelloSilva et al, 2011). Stressful situations, such as acute or chronic experiments, air exposure (Hummel et al, 1989), starvation (Pinheiro, 1996), photoperiod changes, high population densities and parasitism (Pinheiro and Amato, 1994), can directly promote glycogen depletion in mollusks and, thereby, predispose the use of proteins and lipids as alternative sources of energy (Nandurkar and Zambare, 2012). However, the use of these alternative sources of energy (e.g., protein catabolism) increases the production of nitrogenous wastes such as ammonia, which is a toxic substance that mussels normally excrete through their gills into the hemolymph fluid and tissues, that could contribute to the organism's stress and have toxic effects (Thompson et al, 1978;Chen et al, 2001).…”

Physiological response of invasive mussel Limnoperna fortunei (Dunker, 1857) (Bivalvia: Mytilidae) submitted to transport and experimental conditions

“…The use of the metabolic reserve, reduction or depletion of glycogen concentrations and how it is used varies between bivalves and is often associated with nutritional conditions (starvation or food availability), the stage of development, sexual maturity (Hummel et al, 1989;Kang et al, 2000;Albentosa et al, 2007;Dridi et al, 2007;Anacleto et al, 2013) and chronic or acute physical or chemical stresses (Nandurkar and Zambare, 2012). According to Patterson et al (1999), glycogen is the primary energy store in bivalves and is a good physiological parameter of bivalve health status or body condition.…”

Effect of temperature on behavior, glycogen content, and mortality in Limnoperna fortunei (Dunker, 1857) (Bivalvia: Mytilidae)

“…The use of metabolic reserves, or the depletion of glycogen concentrations, has been associated with the nutritional conditions of the mussels and is a good parameter for assessing their physiological conditions (Widdows and Bayne, 1971;Gabbott and Bayne, 1973;Patterson et ., 1999;Chen et al, 2001;Nandurkar and Zambare, 2012;Anacleto et al, 2013;Cordeiro et al, 2016Cordeiro et al, , 2017. In fact, stressors (e.g., extreme temperatures, starvation) cause severe changes in their metabolism and contribute to mortality (Patterson et al, 1999;Lee et al, 2008;Anacleto et al, 2013;Cordeiro et al, 2016).…”