Article
Environmental Sciences
Holly K. K. Plaisted, Erin C. C. Shields, Alyssa B. B. Novak, Christopher P. P. Peck, Forest Schenck, Jillian Carr, Paul A. A. Duffy, N. Tay Evans, Sophia E. E. Fox, Stephen M. M. Heck, Robbie Hudson, Trevor Mattera, Kenneth A. A. Moore, Betty Neikirk, David B. B. Parrish, Bradley J. J. Peterson, Frederick T. T. Short, Amanda I. I. Tinoco
Summary: This study suggests vulnerability in eelgrass meadows of the Northeast USA due to changes in water temperature, with higher than average summer temperatures leading to a decrease in eelgrass presence.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Maria E. Asplund, Stefano Bonaglia, Christoffer Bostrom, Martin Dahl, Diana Deyanova, Karine Gagnon, Martin Gullstrom, Marianne Holmer, Mats Bjork
Summary: Shallow coastal soft bottoms are important carbon sinks, with Nordic seagrass meadows having a high capacity for carbon storage. The relatively low methane emissions from these meadows do not outweigh their importance as carbon sinks.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Zhaxi Suonan, Seung Hyeon Kim, Le-Zheng Qin, Hyegwang Kim, Fei Zhang, Kun-Seop Lee
Summary: This study examined the reproductive responses of Zostera marina populations under different nutrient and light conditions on the southern coast of Korea. The results showed that higher nutrient and lower light conditions increased the reproductive intensity of seagrass, supporting the persistence and resilience of seagrass populations.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Yuhi Satoh, Wada Shigeki
Summary: In this study, the factors regulating the residual potential of organic carbon (Corg) during the decomposition of Zostera marina in seawater were examined. The study found that total carbon, carbohydrate, and lipid are especially important factors in regulating the environmental residual potential of Z. marina Corg.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Zhaohua Wang, Yanzhao Pei, Wenjie Yan, Lv Lu, Bin Zhou
Summary: This study investigated the responses of Zostera marina seedlings to the stresses of seasonal temperature increase and ocean acidification. The findings revealed that under high temperature conditions, carotenoid biosynthesis was stimulated, while under ocean acidification, certain metabolic pathways were activated. When subjected to both stresses, seedlings mobilized various biosynthetic pathways to enhance adaptability and resilience.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Kira A. Krumhansi, Michael Dowd, Melisa C. Wong
Summary: This study introduces a novel framework for characterizing the response of eelgrass ecosystems to environmental variability, evaluating the importance of different environmental metrics on eelgrass bioindicators. The researchers found that temperature, light, and water motion metrics uniquely impact eelgrass productivity and resilience, with temperature variability playing a significant role. These results highlight the complexity of ecosystem responses to global climate change and emphasize the importance of considering multiple environmental factors simultaneously.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Rocio Jimenez-Ramos, Fernando G. Brun, Jose L. Perez-Llorens, Juan J. Vergara, Fatima Delgado-Cabezas, Noelia Sena-Soria, Luis G. Egea
Summary: A key factor for benthic macrophyte communities to survive under light-reduction stress is their ability to balance carbon metabolism. The dissolved organic carbon (DOC) released by these communities serves as a carbon source, playing a significant role in ocean carbon sequestration. This study evaluates the response of seagrass and macroalgae to light-reduction stress and recovery. Results show that light reduction significantly decreases production, with most of the released DOC coming from photosynthetic activity, and shading events greatly impacting net DOC fluxes. Both communities demonstrate high recovery but low resistance capacity, with macroalga showing the highest resilience to unfavorable light conditions.
MARINE POLLUTION BULLETIN
(2023)
Article
Fisheries
Le-Zheng Qin, Zhaxi Suonan, Seung Hyeon Kim, Kun-Seop Lee
Summary: This study showed that Zostera marina is more sensitive to nitrogen enrichment in sediments, resulting in positive effects on both vegetative growth and sexual reproduction. Phosphorus enrichment only slightly increased plant growth with limited influence on sexual reproduction.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Plant Sciences
Cecile Saevdal Dybsland, Trine Bekkby, Kjersti Hasle Enerstvedt, Olav M. Kvalheim, Eli Rinde, Monica Jordheim
Summary: Chemical ecology is proposed as a more time-efficient and cost-effective monitoring tool for seagrass ecosystems compared to traditional methods. Analysis of phenolic chemistry in Zostera marina samples revealed correlations with depth, wave exposure, and sample position within a seagrass meadow, with different responses to stress-induced conditions at varying depths. Flavonoids were separated into two groups based on molecular analysis, one group correlated with depth and wave exposure while the other group showed no clear association, possibly due to unexplored factors. The ratio of flavonoids to rosmarinic acid varied between the periphery and center of a seagrass meadow, indicating potential differences in plant stress levels and providing a molecular index for seagrass ecosystem health. More research is required to fully establish the use of phenolic chemistry variation as a monitoring tool for seagrass ecosystems.
Article
Engineering, Environmental
Le-Zheng Qin, Zhaxi Suonan, Seung Hyeon Kim, Kun-Seop Lee
Summary: The nutrient enrichment in coastal sediments alters the blue carbon sink and storage capacities in seagrass meadows by increasing seagrass growth and litter production, but also accelerating the decomposition rate of certain litter components.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Cale A. Miller, Amanda L. Kelley
Summary: This study investigates the impact of bioremediation methods on acidification by comparing different seagrass pools. The results suggest that habitats with mixed photosynthesizers have less decoupling between pH and aragonite saturation state.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Yu Zhang, Peng Zhao, Shidong Yue, Mingjie Liu, Yongliang Qiao, Shaochun Xu, Ruiting Gu, Xiaomei Zhang, Yi Zhou
Summary: The study showed that anoxic stress significantly reduced leaf Fv/Fm and had a negative impact on photosynthesis and growth of Zostera marina. Metabolomic analysis revealed promotion of glycolysis process and inhibition of the TCA cycle under anoxia, indicating a complex strategy of acclimation and adaptation in seagrass to resist anoxic stress.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
John M. O'Brien, Melisa C. Wong, Ryan R. E. Stanley
Summary: Baseline data on biogenic habitat-forming species are crucial for nearshore habitat management and conservation. Model-based habitat mapping can address data gaps and limitations of remote sensing. A high-resolution ensemble model for eelgrass distribution was developed, showing moderate performance, high sensitivity, and improvement over individual models.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Roxanne Marino, Melanie Hayn, Robert W. Howarth, Anne E. Giblin, Karen J. Mcglathery, Peter Berg
Summary: This study is part of a long-term research on the effects of nitrogen loading in a shallow temperate lagoon. The results show that nitrogen fixation rates associated with seagrass epiphytes are relatively high, despite the high nitrogen input from contaminated groundwater. Cyanobacteria play an important role in the epiphyte communities. The study also suggests that climatic variation contributes to inter-annual variation in nitrogen fixation rates.
Article
Environmental Sciences
Subhash Chand, Barbara Bollard
Summary: Seagrass meadows are declining globally, affecting benthic activity and ecosystem degradation. This study tested the use of drone imagery to detect seasonal seagrass variability and quantify macrofauna benthic activity. The results showed high classification accuracy and revealed changes in seagrass-associated macrofauna abundance and distribution. These findings are important for seagrass conservation and ecological research.
Review
Microbiology
Leilei Xiao, Yiping Wang, Eric Lichtfouse, Zhenkai Li, P. Senthil Kumar, Jian Liu, Dawei Feng, Qingli Yang, Fanghua Liu
Summary: Recycling waste into new materials and energy presents a major challenge in the future circular economy, requiring advanced methods of waste treatment. Antibiotics have complex effects on anaerobic digestion, with most showing adverse impacts but some promoting the generation of digestion products.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Engineering, Environmental
Guodong Wang, Yafei Guo, Jun Yu, Fanghua Liu, Jian Sun, Xinru Wang, Tao Wang, Chuanwen Zhao
Summary: The study investigates the synthesis of Ni-CaO dual-functional materials through different methods and finds that certain synthetic modes can result in samples with high CO2 sorption capacity and superior CO productivity. This performance is associated with better textural properties, smaller particle size, and more uniform dispersion of Ni species.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Leilei Xiao, Fanghua Liu, P. Senthil Kumar, Yunwei Wei, Jian Liu, Dianfeng Han, Shangjie Shan, Xingyu Wang, Run Dang, Jiafeng Yu
Summary: In this study, Geobacter metallireducens was enhanced with Fe3O4 and MnO2 nanoparticles, resulting in increased removal rate and efficiency of chloramphenicol. The nanoparticles increased current density, gene transcription, and electron transfer efficiency, ultimately improving the bioremediation capability of chloramphenicol in the environment.
Article
Environmental Sciences
Yaru Kang, Ruijie Zhang, Kefu Yu, Minwei Han, Yinghui Wang, Xueyong Huang, Ruixuan Wang, Fang Liu
Summary: This study elucidated the levels, fate, and potential sources of 22 organochlorine pesticides (OCPs) in coral tissues and the surrounding air-seawater system from the South China Sea (SCS) for the first time. The atmospheric OCPs were mainly influenced by continental air mass origins, while coastal seawater had relatively higher concentrations of OCPs, possibly due to coastal pollution inputs. Corals exhibited a migration pattern of OCPs from atmosphere to ocean, with higher bioaccumulation ability for OCPs compared to other sources in the SCS.
Article
Microbiology
Lei Chen, Mingpeng Wang, Yuntao Li, Weitao Shang, Jianhui Tang, Zhaojie Zhang, Fanghua Liu
Summary: Extensive production and application of magnetic minerals introduce magnetic wastes into the environment, which can affect microbial community composition and geographic distribution. This study found that magnetic susceptibility is involved in determining bacterial alpha-diversity and community composition in surface sediment. Environmental factors play a larger role than spatial variables in shaping the bacterial community composition.
Article
Oceanography
Fahui Gong, Qixing Ji, Guihao Li, Kedong Yin, Jun Gong
Summary: This study investigated the diversity, community composition, and abundance of bacterioplankton in the Qiongdong upwelling area off the eastern coast of Hainan Island using high throughput sequencing and quantitative PCR. The results showed that nearshore stations had higher bacterial gene abundance and operational taxonomic unit richness compared to offshore stations, indicating the influence of upwelled and fresher waters. The bacterial community structure was significantly affected by salinity, dissolved oxygen, and NO3, which also determined the physicochemical features of the upwelled waters. The abundance of certain bacterial taxa decreased from the inner to outer shelves and slope, while others exhibited an opposite trend.
ACTA OCEANOLOGICA SINICA
(2022)
Article
Green & Sustainable Science & Technology
Fanghua Liu, Shiling Zheng, Bingchen Wang, Xiaoli Zhang
Summary: This study established two syntrophic cocultures with riboflavin (RF), acetoclastic Methanosarcina mazei and hydrogenotrophic Methanobacterium sp. YSL with Geobacter metallireducens, and compared their transcriptome profiles. The results showed that Methanobacterium sp. YSL had a shorter start-up time lag and unique transcriptome profiles when RF was added. Differential expression of key genes involved in the pathways was analyzed by comparative transcriptomics.
Review
Microbiology
Zhishuai Qu, Hongbo Pan, Jun Gong, Congcong Wang, Sabine Filker, Xiaozhong Hu
Summary: In this study, we review the taxonomy, phylogeny, and ecology of cyrtophorian ciliates in China, providing a comprehensive understanding of their classification and evolutionary history. We provide a species checklist, an illustrated identification key, and molecular data for the study of phylogeny. Our findings suggest that the separation of the stomatogenesis zone from the left kineties is a key evolutionary event in cyrtophorian ciliates, leading to the formation of an independent sexual organelle.
Article
Biodiversity Conservation
Guihao Li, Yaping Wang, Han Li, Xiaoli Zhang, Jun Gong
Summary: Biotic interactions play a major role in microbial diversity, but they have not been adequately quantified, leading to unexplained residual variation in microbial biogeographic studies. In this study, a holistic approach was proposed to understand the importance of inter-domain interactions in shaping microbial diversity by considering community-level characteristics. The research found that eukaryotic characteristics were better predictors of bacterial diversity indices and community structure compared to environmental and spatial variables alone. The study also highlighted the significance of non-grazing interacting processes in shaping bacterial diversity and community assembly.
ECOLOGICAL INDICATORS
(2023)
Article
Fisheries
Xiaoli Zhang, Hongbiao Dong, Pengfei Zheng, Guihao Li, Cui He, Xiaohong Guo, Jiasong Zhang, Jun Gong
Summary: Microbes play a crucial role in matter cycling, water quality modulation, and serving as food in intensive aquaculture systems. The use of artificial substrates and biofloc technology can enhance microbial values and animal production. However, the impact of these practices on water quality and microbial diversity remains poorly understood.
Article
Engineering, Environmental
Zhangzhang Xie, Zhiyu Wu, Oumei Wang, Fanghua Liu
Summary: This study found that herbicides have a promoting effect on mixotrophic growth of microalgae. It was observed that low levels of herbicide can significantly promote the mixotrophic growth of C. sacchrarophila, especially under high light intensity. Transcriptome analysis revealed that the mechanism behind this promotion is the acceleration of glucose uptake and utilization.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Xiaoli Zhang, Cheng Yao, Bosong Zhang, Wenwen Tan, Jun Gong, Guang-yu Wang, Jianmin Zhao, Xianbiao Lin
Summary: Intensive mariculture activities can lead to eutrophication and coastal deoxygenation. This study investigated the role of sediment nitrate reduction pathways and microbial communities in seasonal deoxygenation in a coastal aquaculture zone. The results showed that denitrification was the dominant nitrate reduction process, and both denitrification and dissimilatory nitrate reduction to ammonium were enhanced during summer deoxygenation. The abundance of the nitrous oxide reductase gene nosZ increased during deoxygenation, with Azospirillum and Ruegeria being the main contributors. Effective management measures are needed to prevent further exacerbation of coastal deoxygenation and maintain sustainable mariculture.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yuechao Zhang, Qinqin Hao, Oumei Wang, Xiao-Hua Zhang, Fanghua Liu
Summary: Microbial iron reduction plays a crucial role in marine ecosystems, contributing to element cycling and supporting biological activities. Fermentative iron reduction exhibits a pH-buffering effect and improves glucose consumption, bacterial growth, and metabolite production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Microbiology
Ying Pan, Guihao Li, Lei Su, Pengfei Zheng, Yaping Wang, Zhuo Shen, Zigui Chen, Qiuying Han, Jun Gong
Summary: Seagrass colonization significantly affects the structure and function of belowground microeukaryotes, reducing their diversity and increasing heterotroph biomass. This study also highlights the relationship between eukaryotic parasites hotspot and high productivity in natural ecosystems.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Urology & Nephrology
Honghong Ren, Lijun Zhao, Yutong Zou, Yiting Wang, Junlin Zhang, Yucheng Wu, Rui Zhang, Tingli Wang, Jiali Wang, Yitao Zhu, Ruikun Guo, Huan Xu, Lin Li, Mark E. Cooper, Fang Liu
Summary: DKD patients, even in CKD stage 1, have comparable ASCVD risk scores to patients in CKD stages 2, 3, and 4. Higher ASCVD risk indicates severe renal insufficiency, but there is no prognostic value of ASCVD risk for renal outcome, suggesting that macroangiopathy and microangiopathy in DKD patients are related but relatively independent.