Article
Environmental Sciences
Kai Wang, Xiaozhen Mou, Huansheng Cao, Ian Struewing, Joel Allen, Jingrang Lu
Summary: CyanoHABs in Harsha Lake shifted from N2 fixer-dominated Anabaena to non-N2 fixer-dominated Microcystis and Planktothrix as nitrogen supply decreased. The concentrations of cyanotoxins were significantly higher when nitrogen became limited. Water quality results indicated significant correlations between nitrogen species, water temperature, and cyanobacterial biomass. Additionally, the expression levels of certain C- and N-processing-related cyanobacterial genes were highly predictive of species biomass.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Sijia Xu, Yunhan Jiang, Ying Liu, Jian Zhang
Summary: The study demonstrates that antibiotic contaminants accelerate the formation of cyanobacterial blooms in eutrophic lake water, providing insights into the ecological effects of antibiotics on aquatic microbial communities. Antibiotics selectively stimulated the growth and photosynthetic activity of cyanobacteria in aquatic microcosms, influencing the prokaryotic community succession and density of cyanobacteria.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Yunhan Jiang, Youshuai Fang, Ying Liu, Binhua Liu, Jian Zhang
Summary: Hydrogen peroxide shows good potential as an environmentally friendly algaecide for controlling cyanobacterial blooms. It inhibits the growth, photosynthesis, and toxin production of cyanobacteria, effectively preventing bloom formation, while having no adverse effects on non-target eukaryotic phytoplankton. Low-dose application of hydrogen peroxide during the early cyanobacterial growth stage can successfully prevent cyanobacterial blooms without disrupting non-target organisms.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Environmental Sciences
Hyojik Yoon, Hyun-Chul Kim, Sungpyo Kim
Summary: The study investigated the H2O2 concentration and water quality parameters in a large artificial lake near a metropolitan city, finding that the H2O2 concentration in summer was over three times higher than in winter. The lake produced more H2O2 during daylight hours compared to streams, with the lowest production rates in dark conditions. Exposure to external substances, such as heavy metals and antibiotics, increased the generation of H2O2, with antibiotics having a more pronounced effect.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Microbiology
Kaida Peng, Yiying Jiao, Jian Gao, Wen Xiong, Yijun Zhao, Shao Yang, Mingjun Liao
Summary: This study investigated the viral infection characteristics of phytoplankton and bacterioplankton during the summer bloom succession in Xiangxi Bay of Three Gorges Reservoir, China. The results revealed three distinct bloom stages and two successions, and the virus was found to have a positive influence on phytoplankton community dynamics. This study provides valuable insights into the population succession in phytoplankton and the control of cyanobacterial blooms.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Engineering, Environmental
Yiyao Wang, Qiang He, Hong Tang, Yongwang Han, Ming Li
Summary: Artificial mixing is considered as an effective method for controlling cyanobacterial blooms, but its successful application in shallow waters remains unclear. The study showed that a self-designed moving aeration device successfully eliminated blooms in the treated pond, whereas the control pond still experienced frequent cyanobacterial blooms. The aeration method could shift the phytoplankton community from Cyanobacteria to Chlorophyta and Bacillariophyta, suggesting its environmentally friendly potential for bloom control in shallow ponds and lakes.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Xuhui Huang, Peng Gu, Hanqi Wu, Zhikai Wang, Suzhen Huang, Xingzhang Luo, Zheng Zheng
Summary: High calcium concentration induces colony formation in algae by shifting from cell adhesion to cell division. Algae respond to this calcium-induced pressure by aggregating through the secretion of extracellular polysaccharides and cell adhesion. Although high calcium concentrations cannot completely inhibit algal cell growth, they delay the algae from entering the rapid growth phase.
ENVIRONMENTAL POLLUTION
(2022)
Article
Limnology
Nils Haentjens, Emmanuel S. Boss, Jason R. Graff, Alison P. Chase, Lee Karp-Boss
Summary: Phytoplankton, as a crucial component, play a significant role in the global biogeochemical cycles and marine food webs. By merging state-of-the-art cytometry and imaging cytometry measurements, phytoplankton size spectra were constructed, showing seasonal changes and compared with optical size proxies.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Biodiversity Conservation
Yangyang Meng, Min Zhang, Zhen Yang, Xiaoli Shi, Yang Yu, Limei Shi
Summary: This study examined the morphological traits of different bloom-forming cyanobacteria in Lake Chaohu, China. The results showed that Dolichospermum flos-aquae and Microcystis aeruginosa were the dominant cyanobacteria in the lake, with differing morphological traits in different seasons. Dolichospermum appeared to maintain biomass through a trade-off between cell diameter and colony size.
Article
Biochemistry & Molecular Biology
Sil H. J. van Lieshout, Elisa P. Badas, Julius G. Bright Ross, Amanda Bretman, Chris Newman, Christina D. Buesching, Terry Burke, David W. Macdonald, Hannah L. Dugdale
Summary: The study found that the telomere length in European badgers during early life is associated with weather conditions and group size, while no significant association was found between telomere length and group size in early adulthood. Additionally, early-life telomere length is positively correlated with cub survival probability.
Article
Multidisciplinary Sciences
Zongpu Xue, Wei Zhu, Yuyang Zhu, Xihui Fan, Huaimin Chen, Ganyu Feng
Summary: This study investigated the impact of wind and light intensity on the vertical migration of Microcystis colonies. The results showed that wind weakens the 'day-sinking and night-floating' phenomenon of Microcystis by forming a turbulent drag force. Additionally, a kinetic ratio-based method was proposed to determine the occurrence of this phenomenon, providing a new theoretical basis for simulating algal blooms in large shallow lakes.
SCIENTIFIC REPORTS
(2022)
Article
Cell Biology
Kshitij Amar, Sanjoy Saha, Avishek Debnath, Chun Hung Weng, Arpan Roy, Kyu Young Han, Farhan Chowdhury
Summary: Mechanoregulation of cell-ECM interactions is critical for pluripotent stem cell differentiation. Heterogeneity in response to differentiation cues can be attributed to variations in colony size and cell-ECM interactions. Biophysical regulation plays an important role in the heterogeneous differentiation of EpiSC colonies.
Article
Microbiology
Yaiza M. Castillo, Irene Forn, Sheree Yau, Xose Anxelu G. Moran, Laura Alonso-Saez, Nestor Arandia-Gorostidi, Dolors Vaque, Marta Sebastian
Summary: The study used VirusFISH technique to quantify the impact of viruses on natural populations of Ostreococcus in the central Cantabrian Sea. It was found that Ostreococcus were predominantly found during summer and autumn at surface and 50 m depth in coastal, mid-shelf and shelf waters, representing up to 21% of the picoeukaryotic communities. Viral infection was predominantly at surface waters, with the highest impact observed from May to July and November to December.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
R. Manzanas, V Torralba, Ll Lledo, P. A. Bretonniere
Summary: This study analyzes the reliability of seasonal temperature and precipitation forecasts through a comparison between the SEAS5 prediction system and its predecessor, System4, from the European Center for Medium Weather Forecasts. The results show that longer hindcasts and larger ensembles lead to increased reliability estimates, while the number of points pooled in a homogeneous climate region is less relevant.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Mechanical
Pudi Wang, Qing Zhang, Xu Fang, Feng Lin, Jianyong Huang
Summary: This passage discusses the mechanical mechanisms of cell volume regulation in a 3D microenvironment, revealing a competitive relationship between intracellular cortices and 3D ECM, as well as the joint regulation of cell growth and volume adaption by factors such as initial cell size and ECM stiffness. It also highlights the critical role of prestresses on cell-ECM interfaces in constraining 3D cell growth, and the geometric size-dependent sensitivity of cell volume variation to external stimuli.
EXTREME MECHANICS LETTERS
(2021)