Results 41 to 50 of about 358,711 (311)

A Reassessment of Phylogenetic Relationships in Class Oligohymenophorea (Protista, Ciliophora) Based on Updated Multigene Data

Ecology and Evolution
Within the ciliate class Oligohymenophorea, many evolutionary relationships among taxa remain unresolved. This study incorporates 97 new sequences from 30 oligohymenophorean populations, including nuclear small subunit ribosomal (SSU‐rRNA) genes, nuclear
Bailin Li, Yumeng Song, Xiang Wang, Qiyue Zhao, Menghan Liu, Lihui Liu, Xuming Pan, Zhenzhen Yi   +7 more
doaj   +1 more source

Assessment of the fish diet of the Caspian seal (Pusa caspica Gmelin, 1788) during haul out periods on island sites: results, challenges, and perspectives

Frontiers in Marine Science
The Caspian seal (Pusa caspica), an endemic and endangered obligate piscivore of the Caspian Sea, faces threats to its existence, notably from the reduction of its food resources. Pollution, sea regression, overfishing, and the introduction of non-native
Mirgaliy Baimukanov, Anuar Shagilbayev, Akzhan Iskakov, Assel Baimukanova, Assel Baimukanova   +4 more
doaj   +1 more source

Effects of copper on non-specific immunity and antioxidant in the oriental river prawn (Macrobrachium nipponense)

Ecotoxicology and Environmental Safety, 2022
The copper, as heavy metal has important impacts on the antioxidant and immune defense systems in aquatic organisms, and the toxic effects of copper can be accumulated and magnified with the food chain, thus posing a threat to food safety as well as ...
Long Wang, Nan Wu, Yi Zhang, Guiling Wang, Sunyan Pu, Tianyu Guan, Chuankun Zhu, Hui Wang, Jiale Li   +8 more
doaj   +1 more source

Temperature, organic matter and the sustainability of aquatic systems [PDF]

, 1995
Changes in sustainability of aquatic ecosystems are likely to be brought about by the global warming that has been widely predicted. In this article, the effects of water temperature on water-bodies (lakes, oceans and rivers) are reviewed followed by the
Wotton, Roger S
core  

Influence of Water Temperature on the MXR Activity and P-glycoprotein Expression in the Freshwater Snail, Physa acuta (Draparnaud, 1805) [PDF]

, 2017
P-glycoprotein (P-gp) mediated multixenobioticresistance (MXR) is a mechanism analogous to multidrug resistance, which has been extensivelycharacterized in mammalian tumours.
Assef, Yanina Andrea, Horak, Cristina Natalia   +1 more
core   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

Advanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu, Qihang Lv, Lubin Liu, Zhezhe Zhou, Chentao Yan, Ao Qin, Jianting Ma, Shuhui Liang, Yue Xu, Min Hong, Bin Li, Pingan Song   +11 more
wiley   +1 more source

Gender-specific function of melatonin receptor (MTRI) in gonads of red swamp crayfish, Procambarus clarkii

Scientific Reports
Melatonin receptor (MTR) plays a crucial role in mediating melatonin signaling. Therefore, it is necessary to study functions and characteristics of MTR. In this study, full length cDNA of MTRI in Procambarus clarkii was cloned.
Meng Hu, Long Wang, Qianqian Zhu, Tianyu Guan, Yurui Wang, Lin Cai, Hui Wang, Jiale Li   +7 more
doaj   +1 more source

Therapeutic Effects of Psoralea corylifolia and Morus alba Aqueous Extracts on Tetrahymena pyriformis-Infected Guppies (Poecilia reticulata) and Underlying Transcriptomic Mechanisms: Implications for Ciliate Parasite Control

Animals
Tetrahymena pyriformis is biologically similar to Ichthyophthirius multifiliis, the parasite that causes “white spot disease” in fish. Because it has immune evasion genes and grows quickly, T. pyriformis serves as an ideal model for developing treatments
Sitong Li, Pengfei Zhang, Yunhan Wang, Yuxuan Wang, Huan Li, Xuming Pan   +5 more
doaj   +1 more source

Assessing TiO2/Chitosan‐Based Hydrogels for Water Remediation: Sunlight‐Driven Degradation of Antibiotics in Water

Advanced Materials Interfaces, EarlyView.
Chitosan–TiO2 composite hydrogels combine adsorption of organic pollutants with photocatalysis, allowing to remove 85% of a broadly diffused antibiotic (sulfamethoxazole) under direct sunlight irradiation, opening great promises for point‐of‐use, outdoor applications.
Beatrice Cerea, Giovanni Ribaudo, Alessandra Gianoncelli, Matteo Ferroni, Irene Vassalini, Ivano Alessandri   +5 more
wiley   +1 more source

Aquaculture potential of mangrove ecosystem of Sunderbans, West Bengal, India [PDF]

, 1996
The world production of aquatic biological resources is nearing an almost saturation level due to their nonjudicious exploitation during the last few decades.
Chakraborty, S K
core