Article
Engineering, Environmental
Yunfei Sun, Lei Gu, Lu Zhang, Zhou Yang
Summary: Research found that algae with different nutrient contents have different effects on the reproduction and lifespan of rotifers, but rotifers can completely eliminate harmful algae. These effects are related to the nutrition of the algae and the expression of related genes.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Hangyu Lin, Xiaodong Mao, Yanlin Wei, Songzhang Li, Jianguang Qin, Song Zhu, Shengqi Su, Tao He
Summary: This study investigates the accumulation and metabolic regulation of methylmercury in the rotifer Brachionus plicatilis using aggregation-induced emission fluorogen (AIEgen) and metabolomics. The results show that the accumulation of methylmercury mainly occurs in the ciliary corona, digestive organs, and pedal gland of the rotifer, and it is difficult for the rotifer to metabolize methylmercury outside the body. The exposure of rotifers to methylmercury through direct absorption and food intake leads to different metabolic responses, and the biosynthesis and metabolism of arginine in rotifers are disturbed in both pathways. This study provides new insights into the accumulation and toxicity mechanisms of methylmercury on marine invertebrates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Ivana Jezkova, Raquel Ortells, Javier Montero-Pau, Manuel Serra
Summary: This study reveals the presence of ongoing behavioral reproductive isolation in populations of Brachionus plicatilis rotifer, with a more pronounced isolation in populations with higher levels of adaptive divergence.
Article
Biochemistry & Molecular Biology
Zhihan Cao, Ping Li, Xuqian Cao, Xu Wang, Bin Liu, Shuwen He, Guang Gao, Rong Lu, Zhi-Hua Li
Summary: This study investigated the reproductive toxicity of TPT on marine rotifer using environmental concentrations. The results showed that TPT concentrations affected the population size, reproductive rate, and growth rate of the rotifers. Additionally, TPT exposure led to oxidative damage, delayed reproduction, and changes in phenotypic traits. Furthermore, the expression of a gene associated with reproduction was altered by TPT exposure.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2022)
Article
Fisheries
Xuerui Gong, Ying Guo, Jingjie Hu, Zhenmin Bao, Mengqiang Wang
Summary: In this study, the full-length cDNA of a thioredoxin-like protein gene from rotifer Brachionus plicatilis was obtained. The protein was found to have antioxidant capacity and may be involved in regulating excessive reactive oxygen species (ROS) during environmental stress or pathogen invading.
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
(2023)
Article
Fisheries
Jose A. Perez, Diana B. Reis, Daniel Ramirez, Nieves G. Acosta, Roberto Dorta-Guerra, Salvador Jerez, Covadonga Rodriguez
Summary: This study demonstrates the endogenous fatty acid metabolism of the marine rotifer, Brachionus plicatilis, and its ability to produce long-chain polyunsaturated fatty acids (LC-PUFA) from its precursors. The study also finds that the conversion rate of fatty acids is comparatively low, with a lower incorporation of docosahexaenoic acid (DHA) compared to other substrates. These factors, along with a competitive esterification pattern, may result in inadequate essential fatty acid ratios for marine larvae nutrition if not properly considered in the lipid enrichment process.
Article
Fisheries
Daniel P. Killeen, Jeremy S. Rooney, Asli Card, Liam B. Hegarty, Warren W. Fantham, Keith C. Gordon, Damian Moran
Summary: The authors investigated the potential of portable Raman spectroscopy as a faster and more efficient method for quantifying the fatty acid composition of rotifers in aquaculture. They found that the portable instrument could accurately measure total fatty acids (TFA) and total polyunsaturated fatty acids (PUFA) and significantly reduced analysis time compared to the traditional FT-Raman system. Portable Raman spectroscopy is a promising tool for high throughput screening of rotifer lipid composition in aquaculture.
AQUACULTURE RESEARCH
(2022)
Article
Marine & Freshwater Biology
Hye-Min Kang, Eunjin Byeon, Haksoo Jeong, Yoseop Lee, Un-Ki Hwang, Chang-Bum Jeong, Cheolho Yoon, Jae-Seong Lee
Summary: This study examined the combined effects of nano(micro)plastics (NMPs) and arsenic (As) on the marine rotifer Brachionus plicatilis. The results showed that NPs increased As toxicity while MPs alleviated it, and NPs inhibited the efflux of As. These findings provide a deeper understanding of the environmental pollutants and their interactions.
AQUATIC TOXICOLOGY
(2021)
Article
Environmental Sciences
Xin Zhang, Xuexi Tang, Yingying Yang, Zijie Sun, Wenqian Ma, Xin Tong, Chengmin Wang, Xinxin Zhang
Summary: The study revealed that TnBP has adverse effects on the reproduction and population growth of marine rotifers, causing reproductive toxicity at high concentrations, oxidative imbalance, impaired mitochondrial function, and disrupted metabolic pathways. Furthermore, TnBP induced internal connections that affect the balance of different life processes in response to environmental stress.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Deok-Seo Yoon, Yoseop Lee, Jun Chul Park, Min-Chul Lee, Jae-Seong Lee
Summary: The effects of TBT and microplastic exposure on rotifers were investigated, showing varied impacts on reproduction and lifespan under different dietary regimens. Reactive oxygen species increased and antioxidant activities were disrupted in response to TBT and/or microplastic exposure. The carryover effect of TBT toxicity was observed in progeny rotifers from exposed parental rotifers.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Chuxin Wang, Haksoo Jeong, Jin-Sol Lee, Piotr Maszczyk, Alaa El-Din H. Sayed, Un-Ki Hwang, Hyung Sik Kim, Jae-Seong Lee, Eunjin Byeon
Summary: This study demonstrates the combined effect of high concentrations of nanoplastics (NPs) and copper (Cu) on the marine rotifer Brachionus plicatilis, leading to decreased growth rate, reproduction, and lifespan. The interaction of NPs and Cu activates the ERK cell signaling pathway. The impaired MXR function caused by high concentrations of NPs increases the sensitivity of B. plicatilis to Cu, resulting in increased physiological toxicity.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Zijie Sun, Wenqian Ma, Xuexi Tang, Xin Zhang, Yingying Yang, Xinxin Zhang
Summary: In this study, the effects of triphenyl phosphate (TPhP) on the marine rotifer Brachionus plicatilis were investigated. Results showed that TPhP had negative impacts on the lifespan, reproduction, and population dynamics of the rotifers. Metabolomics analysis revealed disruptions in lipid metabolism induced by TPhP. These findings enhance our understanding of the ecological risk and mode of action of TPhP in aquatic environments.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Environmental Sciences
Yoseop Lee, Min -Sub Kim, Jordan Jun Chul Park, Young Hwan Lee, Jae-Seong Lee
Summary: Exposure to nano-and micro-sized plastics and hypoxic conditions can significantly affect the life traits, antioxidant system, and gene expression in marine rotifers, with nano-sized plastics having a particularly pronounced deleterious effect.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Yoseop Lee, Min-Sub Kim, Jordan Jun Chul Park, Young Hwan Lee, Jae-Seong Lee
Summary: This study investigates the multigenerational effects of co-exposure to hypoxia and nano- or micro-sized plastics (NMPs) in marine rotifers. The results show that combined exposure to NMPs and hypoxia leads to decreased fecundity and increased production of reactive oxygen species (ROS). The hypoxia-inducible factor (HIF) pathway and circadian clock genes are also upregulated in response to NMP exposure. Furthermore, the study highlights the synergistic deleterious effects of nano-sized plastics, suggesting that size-dependent toxicity plays a major role in the effects of hypoxia and NMP co-exposure.
MARINE POLLUTION BULLETIN
(2022)
Article
Fisheries
Mi-Song Hong, Deok-Seo Yoon, Ji-Su Kim, Heum Gi Park, Jae-Seong Lee, Min-Chul Lee
Summary: We conducted a comprehensive analysis of the effects of increased salinity on Brachionus plicatilis, finding delays in maturation and potential disruptions in the reproductive process. High salinity also impedes growth and alters swimming behavior. Additionally, we discovered distinctive sequences of FABPs in three Brachionus species, contributing to our understanding of their evolutionary positioning.