Effect of Single Species or Mixed Algal (Chlorella vulgaris andScenedesmus acutus) Diets on the Life Table Demography ofBrachionus calyciflorus andBrachionus patulus (Rotifera: Brachionidae)

Flores-Burgos, J.; Sarma, S. S. S.

doi:10.1002/aheh.200500602

Cited by 15 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected, when food is not limiting there was no correlation or trade-off between reproduction and lifespan [ 39, 40 ]. Interestingly, an investigation of B. calyciflorus and B. patulus fed two different algae singly or in combination demonstrated that the difference in lifespan and reproduction was as great between the two rotifer species on the same diet as for the same species fed different diets [ 40 ], emphasizing the significant variability in lifespan and response to dietary changes among species, even when very closely related.…”

Section: Metabolic Manipulation Of Lifespan and Health In Rotifersmentioning

confidence: 99%

Brachionus rotifers as a model for investigating dietary and metabolic regulators of aging

Gribble

2020

Nutrition and Healthy Aging

View full text Add to dashboard Cite

Because every species has unique attributes relevant to understanding specific aspects of aging, using a diversity of study systems and a comparative biology approach for aging research has the potential to lead to novel discoveries applicable to human health. Monogonont rotifers, a standard model for studies of aquatic ecology, evolutionary biology, and ecotoxicology, have also been used to study lifespan and healthspan for nearly a century. However, because much of this work has been published in the ecology and evolutionary biology literature, it may not be known to the biomedical research community. In this review, we provide an overview of Brachionus rotifers as a model to investigate nutritional and metabolic regulators of aging, with a focus on recent studies of dietary and metabolic pathway manipulation. Rotifers are microscopic, aquatic invertebrates with many advantages as a system for studying aging, including a two-week lifespan, easy laboratory culture, direct development without a larval stage, sexual and asexual reproduction, easy delivery of pharmaceuticals in liquid culture, and transparency allowing imaging of cellular morphology and processes. Rotifers have greater gene homology with humans than do established invertebrate models for aging, and thus rotifers may be used to investigate novel genetic mechanisms relevant to human lifespan and healthspan. The research on caloric restriction; dietary, pharmaceutical, and genetic interventions; and transcriptomics of aging using rotifers provide insights into the metabolic regulators of lifespan and health and suggest future directions for aging research. Capitalizing on the unique biology of Brachionus rotifers, referencing the vast existing literature about the influence of diet and drugs on rotifer lifespan and health, continuing the development of genetic tools for rotifers, and growing the rotifer research community will lead to new discoveries a better understanding of the biology of aging.

show abstract

Section: Metabolic Manipulation Of Lifespan and Health In Rotifersmentioning

confidence: 99%

Brachionus rotifers as a model for investigating dietary and metabolic regulators of aging

Gribble

2020

Nutrition and Healthy Aging

View full text Add to dashboard Cite

show abstract

“…Before the commencement of experiments, rotifers were precultured at 15°C, 20°C, 25°C, and 30°C in darkness for more than 1 week and fed with 1.0 × 10 6 cells/ml C. pyrenoidosa (Flores-Burgos, Sarma, & Nandini, 2005). The culture medium was changed daily.…”

Section: Tests Of Chronic Toxicitymentioning

confidence: 99%

Effects of TiO₂ nanoparticles on the life‐table parameters, antioxidant indices, and swimming speed of the freshwater rotifer Brachionus calyciflorus

et al. 2020

View full text Add to dashboard Cite

Titanium dioxide nanoparticles (nTiO2) have raised environmental concerns and display potential hazards to aquatic organisms and even humans. However, only a few reports tested the toxicity of nTiO2 to rotifers. In the present study, acute and chronic toxicity of nTiO2 to the freshwater rotifer Brachionus calyciflorus was investigated at different temperatures. At 25°C, the 24 and 48‐hr LC50 was 117.14 and 60.11 mg/L, respectively. At 15°C, 20°C, 25°C, and 30°C, exposure to nTiO2 significantly decreased life expectancy at birth, net reproductive rate, generation time, average lifespan, and/or intrinsic rate of population increase of B. calyciflorus (p < .05). High temperature enhanced the toxicity of nTiO2 to rotifers. The swimming linear speed of rotifers significantly increased (p < .05) in treatments with 200 µg/L nTiO2, compared with the control. In addition, treatments with 8 µg/L to 5 mg/L nTiO2 significantly increased superoxide dismutase activity (p < .05). Glutathione content and catalase activity increased significantly after exposure to 8 µg/L nTiO2 but decreased significantly in treatments with nTiO2 concentrations ranging from 40 µg/L to 5 mg/L (p < .05). There were no significant changes in malondialdehyde contents among nTiO2 treatments and control. Overall, the present study indicated that nTiO2 revealed high toxicity to rotifers, displaying high environmental risks to aquatic ecosystems.

show abstract

“…23 Given that rotifers tend to feed selectively, the characterization of bulk seston properties (e.g., elemental composition, organic matter content) provide only rough estimates of the composition of the items that are actually ingested. 26,27 The suitability of different foods to sustain population growth is then inferred from some measure of demographic performance, 28 such as the net reproductive rate (R 0 ). 25 For instance, algal foods that promote growth and reproduction in Brachionus (Chlorella, Chlamydomonas, Euglena, and other green algae) usually are poor foods for Keratella.…”

Section: Introductionmentioning

confidence: 99%

“…A valuable alternative is to use life table bioassays to estimate a suit of demographic parameters when the rotifers are offered different food mixtures. 26,27 The suitability of different foods to sustain population growth is then inferred from some measure of demographic performance, 28 such as the net reproductive rate (R 0 ).…”

Section: Introductionmentioning

confidence: 99%

Rotifer dynamics in three shallow lakes from the Salado river watershed (Argentina): the potential modulating role of incident solar radiation

Diovisalvi

Rennella

Zagarese

2015

Photochem Photobiol Sci

View full text Add to dashboard Cite

In turbid Pampean lakes, incident solar radiation is a major driver of plankton seasonal dynamics. Higher light availability in summer translates into higher primary production, and therefore more food for zooplankton grazers. However, experimental evidence suggests that food produced under the high irradiance conditions prevailing in summer are less suitable to sustain rotifer population growth than that produced under the lower irradiance conditions typical of winter. Here, we analysed time series datasets corresponding to three shallow lakes from the Salado river watershed. This analysis provided evidence for similar seasonal patterns of rotifer relative abundance over a large geographic area. In addition, we performed life table experiments to test the hypothesis that natural seston produced in winter could sustain higher population growth rates than seston produced in summer. We suggest that the natural seasonal changes in temperature and food generate successive time windows, which may be capitalized by the different grazer species, resulting in predictable phenology of grazer populations.

show abstract

Effect of Single Species or Mixed Algal (Chlorella vulgaris andScenedesmus acutus) Diets on the Life Table Demography ofBrachionus calyciflorus andBrachionus patulus (Rotifera: Brachionidae)

Cited by 15 publications

References 32 publications

Brachionus rotifers as a model for investigating dietary and metabolic regulators of aging

Brachionus rotifers as a model for investigating dietary and metabolic regulators of aging

Effects of TiO₂ nanoparticles on the life‐table parameters, antioxidant indices, and swimming speed of the freshwater rotifer Brachionus calyciflorus

Rotifer dynamics in three shallow lakes from the Salado river watershed (Argentina): the potential modulating role of incident solar radiation

Contact Info

Product

Resources

About

Effect of Single Species or Mixed Algal (Chlorella vulgaris andScenedesmus acutus) Diets on the Life Table Demography ofBrachionus calyciflorus andBrachionus patulus (Rotifera: Brachionidae)

Cited by 15 publications

References 32 publications

Brachionus rotifers as a model for investigating dietary and metabolic regulators of aging

Brachionus rotifers as a model for investigating dietary and metabolic regulators of aging

Effects of TiO2 nanoparticles on the life‐table parameters, antioxidant indices, and swimming speed of the freshwater rotifer Brachionus calyciflorus

Rotifer dynamics in three shallow lakes from the Salado river watershed (Argentina): the potential modulating role of incident solar radiation

Contact Info

Product

Resources

About

Effects of TiO₂ nanoparticles on the life‐table parameters, antioxidant indices, and swimming speed of the freshwater rotifer Brachionus calyciflorus