Article
Biodiversity Conservation
Yanfeng Sun, Yang Liu, Chao Wu, Xiaoting Fu, Congcong Guo, Liuyang Li, Jun Sun
Summary: This study characterized the eukaryotic plankton communities in the South Yellow Sea Cold Water Mass and nearshore waters using Illumina high-throughput sequencing. Different species and abundances of eukaryotic plankton were identified in the two sea areas, with environmental factors showing significant correlations with their growth and distribution. Environmental factors such as dissolved inorganic nutrient concentrations, water depth, and specific nutrients were found to play important roles in shaping the communities of eukaryotic plankton.
Article
Plant Sciences
Ben -Wen Liu, Shu-Yin Li, Huan Zhu, Guo-Xiang Liu
Summary: This study aims to identify the environmental factors that drive phyllosphere algal community composition and diversity in rainforests. The researchers used single molecule real-time sequencing to characterize the phyllosphere microalgal communities growing on four common tree species in three types of forest. The study found that forest type and host tree species significantly influenced the structure of the algal community, and that soluble reactive phosphorous, total nitrogen, and ammonium contents were important environmental factors affecting the communities.
Article
Environmental Sciences
Roberto Junio Pedroso Dias, Pedro Mendes de Souza, Mariana Fonseca Rossi, Alfredo Hannemann Wieloch, Inacio Domingos da Silva-Neto, Marta D'Agosto
Summary: The study aimed to evaluate water quality of an urban stream in southeastern Brazil by analyzing epibenthic ciliates and investigating phylogenetic signal for saprobity in ciliates. It was found that there is clear influence of organic pollution on the composition and structure of ciliates taxocenosis in urban areas. The study confirmed the existence of phylogenetic signal for saprobity in Ciliophora, and evolutionary analysis is suggested as a potential method to predict lineages of ciliates not yet classified for saprobity.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Qing Yang, Peng Zhang, Xiaodong Li, Shengxian Yang, Xin Chao, Huiqiu Liu, Sang Ba
Summary: This study used 18S rDNA gene amplification sequencing, a neutral community model, and a null model to analyze the spatial and temporal dynamics and assembly processes of eukaryotic microbial communities in the middle reaches of the Yarlung Zangbo River. The results showed that the diversity, structure, and taxonomic composition of eukaryotic microbial communities varied more with altitude than season. Deterministic processes dominated the construction of eukaryotic microbial communities, and water temperature, pH, and total phosphorus were the primary environmental factors that influenced their construction.
Article
Biochemistry & Molecular Biology
Denis Tikhonenkov, Mahwash Jamy, Anastasia S. Borodina, Artem O. Belyaev, Dmitry G. Zagumyonnyi, Kristina Prokina, Alexander P. Mylnikov, Fabien Burki, Sergey A. Karpov
Summary: Telonemia is a major phylum of flagellated eukaryotes that plays a crucial role in understanding the origin and diversity of eukaryotes. However, the knowledge about Telonemia is limited. In this study, we established new cultures and described new species and a new genus of Telonemia, providing insights into its phylogeny and morphology. Our findings contribute to a deeper understanding of the origin of other major eukaryotic groups and the organization of microbial food webs.
Article
Zoology
Jans Morffe, Nayla Garcia, Laura Veliz, Koichi Hasegawa, Ramon A. Carreno
Summary: The nematodes Protrelleta floridana and Cranifera cranifera were discovered for the first time in Cuba, parasitizing the cockroach Blaberus discoidalis. Morphological analysis and molecular phylogeny show similarities with samples from the USA and Costa Rica, revealing coevolutionary relationships between C. cranifera and its blaberid hosts.
Article
Ecology
Noemi M. Fernandes, Pedro H. Campello-Nunes, Thiago S. Paiva, Carlos A. G. Soraes, Inacio D. Silva-Neto
Summary: The study investigated the diversity of ciliates in freshwater and brackish environments along the Brazilian Atlantic Forest and found differences in ciliate communities between these habitats, with highly abundant and low-abundant or rare OTUs. Additionally, a considerable fraction of ciliate diversity in the Brazilian Atlantic Forest detected through HTS was not represented in the currently available molecular databases.
Article
Environmental Sciences
Qingzhu Huang, Xiang Mao, Feng Pan, Xun Hu, Zhenyu He, Yao Wang, Yanjian Wan
Summary: This study investigated the concentrations of organophosphate esters (OPEs) in source, finished, and tap water samples from Wuhan, central China, as well as the removal efficiency of OPEs by different tap water treatment processes and seasonal variations. The results showed that most OPEs were not effectively removed by conventional tap water treatment, except for TCIPP, but could be more effectively removed by advanced processes. TCIPP and tris(2-chloroethyl) phosphate were the predominant OPEs in tap water samples. The study also found significant seasonal variations in OPE residues in tap water, with low health risks associated with OPE exposure via tap water ingestion.
Article
Medicine, Legal
Sala Randall, Claire Cartozzo, Tal Simmons, Jenise L. Swall, Baneshwar Singh
Summary: This study demonstrates that eukaryotic succession can be used to predict the postmortem submersion interval in lentic systems. Fresh porcine bones were submerged in a freshwater lake and samples were collected for analysis, showing promising predictive capabilities.
FORENSIC SCIENCE INTERNATIONAL
(2021)
Article
Parasitology
M. Sharifdini, O. M. Amin, R. A. Heckmann
Summary: The study provided molecular support for the validity of the morphological description of Acanthosentis kashmirensis and characterized its molecular identity and phylogenetic relationships. The ITS-rDNA sequences of Quadrigyridae family members are more variable than 18S rDNA, which can be useful for biodiversity assessment. More sequence data from additional species will be needed to reconstruct the phylogenetic relationships within this group of acanthocephalans.
ACTA PARASITOLOGICA
(2021)
Article
Parasitology
Daniele Corsaro, Danielle Venditti
Summary: Acanthamoeba is a common amoeba that can cause serious infections in humans and animals. Different strains can be identified using 18S rDNA sequencing, with the majority belonging to the T4 genotype. In this study, a new nuclear subtype (T4H) was identified, which co-clusters with the T4j subtype of mitochondria. This new subtype has been found in cases of amoebic keratitis in several countries.
PARASITOLOGY RESEARCH
(2023)
Article
Zoology
Jans Morffe, Nayla Garcia, Koichi Hasegawa
Summary: A new nematode species, Travassosinema viatorum, was discovered parasitizing the invasive millipede Chamberlinius hualienensis in Okinawa, Japan. Morphological and genetic analysis revealed the high similarity between T. viatorum and other millipede nematodes. The results also suggest host switching as a mechanism explaining the host-nematode relationships.
Article
Zoology
Jans Morffe, Nayla Garcia, Koichi Hasegawa, Karin Breugelmans
Summary: A new species of Klossnema, Klossnema viguerasi, is described from the passalid beetle endemic to Cuba, Antillanax pertyi. The morphological differences and phylogeny of the new species were analyzed through comparing it with K. repentina and conducting molecular analysis. This study marks the first record of the genus Klossnema in the Cuban archipelago and the West Indies.
Article
Biochemistry & Molecular Biology
Igor Henrique Rodrigues-Oliveira, Pierre Rafael Penteado, Rubens Pasa, Fabiano Bezerra Menegidio, Karine Frehner Kavalco
Summary: This study reveals that the Deuterodon genus of tetras in southeastern Brazil may have evolved due to neotectonic events, and at least three evolutionary significant units were identified within a species complex.
GENETICS AND MOLECULAR BIOLOGY
(2023)
Article
Microbiology
Guo-Dong Dai, Hong-Bin Yan, Li Li, Lin-Sheng Zhang, Zhan-Long Liu, Sheng-Zhi Gao, John Asekhaen Ohiolei, Yao-Dong Wu, Ai-Min Guo, Bao-Quan Fu, Wan-Zhong Jia
Summary: In this study, a new species of the genus Moniliformis was taxonomically described based on the mitochondrial genomic context. The parasite was found in a high-altitude area of Xiahe County, Gansu Province, China. The molecular phylogeny analysis confirmed the relationship of the new species with other Moniliformis species. Additionally, the complete mitochondrial genome sequenced in this study provides molecular material for further phylogenetic research on Archiacanthocephala. This study expands the knowledge of potential wild animal hosts for Archiacanthocephalans and contributes to the research on zoonotic parasitic diseases.
FRONTIERS IN MICROBIOLOGY
(2022)
