Article
Ecology
Yun-Chi Lin, Chien-Pang Chin, Jinny Wu Yang, Kuo-Ping Chiang, Chih-hao Hsieh, Gwo-Ching Gong, Chi-Yu Shih, Szu-Ying Chen
Summary: This study used metabarcoding of 18S rDNA V4 region to reveal the spatial and temporal variations of Marine Stramenopiles (MASTs) in the southern East China Sea. It was found that MAST-9 had a high representation in warm waters, while MAST-1C was common in colder waters during spring. Canonical correspondence analysis showed that temperature, nitrite, and Synechococcus concentrations significantly influenced MASTs communities. Additionally, co-occurrence networks indicated that certain minor prokaryotic taxa could impact MAST communities.
Article
Biodiversity Conservation
Yuqi Zhou, Baoyu Sun, Baohua Xie, Kai Feng, Zhaojing Zhang, Zheng Zhang, Shuzhen Li, Xiongfeng Du, Qi Zhang, Songsong Gu, Wen Song, Linlin Wang, Jianyang Xia, Guangxuan Han, Ye Deng
Summary: Global warming can significantly alter the diversity and structure of microbial communities in soil ecosystems, impacting key species within the networks. The interactions among microbial groups are influenced by environmental stress and soil nutrients, highlighting the complex feedback mechanisms at play in response to warming conditions.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Zelong Li, Jing Wang, Jingfeng Fan, Hao Yue, Xiuhong Zhang
Summary: This study investigates the effects of domoic acid (DA) on protistan ecology in marine environments. The results show that trace amounts of DA can alter the diversity of protistan community and have negative effects on consumers and phototrophs. Additionally, the study reveals that DA shapes the protistan ecological network by acting on phototrophs and triggering cascading effects in networks, leading to shifts in ecological succession.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Wu Xiong, Alexandre Jousset, Rong Li, Manuel Delgado-Baquerizo, Mohammad Bahram, Ramiro Logares, Benjamin Wilden, Gerard Arjen de Groot, Nathalie Amacker, George A. Kowalchuk, Qirong Shen, Stefan Geisen
Summary: The study examined 38 sequence-based datasets of paired bacterial and protistan taxa from a variety of habitats. It found that microbiomes in soils were the most diverse, with predatory protists dominating, while aquatic environments were characterized by phototrophic protists. The study also highlighted the impact of anthropogenic factors on the trophic structure of microbiomes, suggesting a reduction in higher trophic complexity in human-influenced environments.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Geography, Physical
Xiao Min, Hong Hua, Bo Sun, Qiaokun Dai, Jinzhou Luo, Xiaoqiang Pan, Ziwei Liu
Summary: Molecular clocks suggest that some heterotrophic protists were present in ecosystems as far back as 1000 Ma. Fossil records of heterotrophic protists from different time periods and locations have been found, but the records after the Cryogenian age are still unclear.
GLOBAL AND PLANETARY CHANGE
(2021)
Editorial Material
Microbiology
Stefan Geisen
Summary: Microbes in the soil play a dominant role in the biodiversity of the planet, but there are still some shortcomings in the current research on their diversity. To address these issues, studies on soil microbiomes should be more comprehensive in terms of targeted taxa and resolution, integrate functional information with taxonomic information, and combine temporal analysis with spatial analysis.
Article
Biodiversity Conservation
Marina Monti-Birkenmeier, Tommaso Diociaiuti, Thomas H. Badewien, Anne-Christin Schulz, Anna Friedrichs, Bettina Meyer
Summary: The Western Antarctic Peninsula is experiencing rapid climate warming, affecting the marine food web. A study on microzooplankton distribution found significant differences in abundance and composition among different areas. Tintinnids were the most representative group and can be used as indicators for environmental and hydrographical changes.
Article
Soil Science
Rasit Asiloglu, Bahar Sevilir, Solomon Oloruntoba Samuel, Murat Aycan, Muhittin Onur Akca, Kazuki Suzuki, Jun Murase, Oguz Can Turgay, Naoki Harada
Summary: The study found that the presence of protists and the application of biochar (PL and RH) significantly impacted the soil bacterial community and bacterial genes involved in N-cycling, with protists and PL amendments increasing the abundance of certain bacterial genes. Additionally, rice plant growth and N uptake were higher in the presence of protists and PL amendments. This suggests a new insight into the effects of biochar on the bacterial community via altering trophic interactions.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Fisheries
Maiju Lehtiniemi, Elaine Fileman, Heidi Hallfors, Harri Kuosa, Sirpa Lehtinen, Inga Lips, Outi Setala, Sanna Suikkanen, Jarno Tuimala, Claire Widdicombe
Summary: Heterotrophic protists play an important role in the marine ecosystem, but are often overlooked. This study analysed 11 years of data from the Western English Channel and found that sampling frequency can affect the quality of the data.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Susanne Wilken, Charmaine C. M. Yung, Camille Poirier, Ramon Massana, Valeria Jimenez, Alexandra Z. Worden
Summary: Through a series of experiments, researchers have identified choanoflagellates as the most important predators of Prochlorococcus, a key member of marine primary producer communities. This study also reveals the linkages and routes of carbon transfer between different protistan taxa and Prochlorococcus, shedding light on the marine food web.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Environmental Sciences
Rasit Asiloglu
Summary: Biochar applications have significant impacts on the soil microbial community and functionality, but studies on protists, which are an important component of eukaryotic diversity, are currently lacking.
Article
Soil Science
Yuji Jiang, Shuzhen Li, Andrew D. Barnes, Jia Liu, Guofan Zhu, Lu Luan, Francisco Dini-Andreote, Stefan Geisen, Bo Sun
Summary: The soil microbiome is affected by both bottom-up and top-down processes at the local soil aggregate level. Predation plays an important role in shaping the diversity and stability of soil bacterial communities, with a greater impact on macroaggregates. Predation also alters the abundance of microbial genes associated with carbon and nitrogen metabolisms.
Article
Engineering, Environmental
Shengjie Li, Shuo Wang, Guodong Ji
Summary: This study investigated the influence of different carbon sources on N2O production and reduction, isotopic signatures, microbial populations, and enzymes during denitrification in freshwaters. The results demonstrated a link between carbon sources, N2O production and reduction, isotopic signatures, microbial populations, and enzymes during denitrification.
Article
Environmental Sciences
Fangfang Li, Anqi Sun, Xiaoyan Jiao, Li Bi, Yong Zheng, Ji-Zheng He, Hang-Wei Hu
Summary: This study investigated the impacts of inorganic fertilization regimes on protist communities in rhizosphere and bulk soils of sorghum plants. Results showed that protists were dominated by specific supergroups in both compartments, with significantly lower diversity in rhizosphere soils. Inorganic fertilization did not significantly impact protistan diversity or composition, but did change the relative abundances of specific taxa. Co-occurrence network analysis revealed intensive trophic interactions between protists, bacteria, and fungi in soil food webs. Soil properties and the community compositions of bacteria and fungi were important factors shaping protistan communities.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Engineering, Environmental
Zhenguang Lv, Min Xu, Ying Liu, Regin Ronn, Christopher Rensing, Song Liu, Shenghan Gao, Hao Liao, Yu-Rong Liu, Wenli Chen, Yong-Guan Zhu, Qiaoyun Huang, Xiuli Hao
Summary: Phagotrophic protist communities in long-term Cu-contaminated soils have important impacts on Cu-resistant bacterial populations. Certain communities, such as Cercozoa and Amoebozoa, increase the relative abundance of Cu-resistant bacteria, while the relative abundance of Ciliophora decreases. Phagotrophs positively influence the relative abundance of Cu-resistant and -sensitive ecological clusters, contributing to the abundance of the Cu resistance gene (copA).
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Ecology
David M. Baker, Christopher J. Freeman, Jane C. Y. Wong, Marilyn L. Fogel, Nancy Knowlton
Article
Geography, Physical
Gifford H. Miller, John W. Magee, Marilyn L. Fogel, Matthew J. Wooller, Paul P. Hesse, Nigel A. Spooner, Beverly J. Johnson, Lynley Wallis
QUATERNARY SCIENCE REVIEWS
(2018)
Article
Limnology
Ana L. Liberoff, Silvia Flaherty, Pablo Hualde, Martin Garcia Asorey, Marilyn L. Fogel, Miguel A. Pascual
Article
Geochemistry & Geophysics
Marilyn L. Fogel
GEOCHEMICAL PERSPECTIVES
(2019)
Article
Biology
Seth D. Newsome, Kelli L. Feeser, Christina J. Bradley, Caitlin Wolf, Cristina Takacs-Vesbach, Marilyn L. Fogel
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2020)
Article
Environmental Sciences
Lily A. Tomkovic, Edward S. Gross, Bobby Nakamoto, Marilyn L. Fogel, Carson Jeffres
Article
Ecology
Seth D. Newsome, Bobby J. Nakamoto, Mauriel Rodriguez Curras, Marilyn L. Fogel
Article
Geography, Physical
Jonathan W. Nye, Atilio Francisco J. Zangrando, Maria Paz Martinoli, Marilyn L. Fogel
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Nadine W. Gabriel, Dominic Papineau, Zhenbing She, Arne Leider, Marilyn L. Fogel
Summary: This study aims to investigate the mineralogy and organic geochemistry of well-preserved late Palaeoproterozoic stromatolitic dolomite from the McLeary Formation, and suggests that chemically oscillating reactions may influence the formation of diagenetic spheroids.
PRECAMBRIAN RESEARCH
(2021)
Article
Ecology
Emma A. Elliott Smith, Michael D. Fox, Marilyn L. Fogel, Seth D. Newsome
Summary: Carbon isotope fingerprinting using multivariate analysis has been applied in ecological studies to measure essential amino acids. This study evaluated the consistency in isotopic fingerprints among nearshore primary producers and identified the biochemical mechanisms driving these patterns. The results showed a high consistency in isotopic fingerprints of marine algae across space and time, with kelps and rhodophytes exhibiting distinct patterns. Taxonomy and site locality were found to be important determinants of individual amino acid delta C-13 values.
FUNCTIONAL ECOLOGY
(2022)
Article
Ecology
Kaycee E. Morra, Seth D. Newsome, Gary R. Graves, Marilyn L. Fogel
Summary: This study explores the variations in δH-2 in plant, herbivore, and herbivorous insect tissues through amino acid analysis, revealing extensive variation within and among individuals and the potential additional sources such as gut microbes contributing to these variations. Multiple isotopic carryover effects associated with metamorphosis were also found, highlighting the importance of physiological mechanisms in determining consumer-diet δH-2 discrimination.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Marine & Freshwater Biology
Sol Porcel, Marilyn L. Fogel, Irina Izaguirre, Ignacio Roesler, Julio L. Lancelotti
Summary: The introduction of rainbow trout in naturally fishless lakes in the reproductive area of the endangered Hooded Grebe has been found to impact the food web structure and carbon source utilization of the aquatic community. The presence of trout leads to an increase in trophic redundancy and changes in the spatial distribution and diet of the Grebe's main prey.
Article
Biology
Ileana Perez-Rodriguez, Stefan M. Sievert, Marilyn L. Fogel, Dionysis Foustoukos
Summary: We investigated the impact of pressure on thermophilic, chemolithoautotrophic NO3- reducing bacteria isolated from deep-sea hydrothermal vents. Results showed that higher pressure resulted in decreased NO3- consumption, lower cell concentrations, and slower growth. However, nitrogen isotope fractionation effects from the chemolithoautotrophic NO3- reduction were maintained under all pressure conditions. Comparisons between natural hydrothermal vent fluid microbial communities and laboratory isolates suggested similar chemolithoautotrophic NO3- reducing activities. Our results contribute to the understanding of the relationship between pressure, temperature, redox conditions, and anaerobic chemolithoautotrophic processes.
Article
Fisheries
Bobby J. Nakamoto, Carson A. Jeffres, Nicholas J. Corline, Mollie Ogaz, Christina J. Bradley, Joshua H. Viers, Marilyn L. Fogel
Summary: Using compound-specific isotope analysis, we determined the biosynthetic source of amino acids in fish from major tributaries to the Sacramento-San Joaquin river delta in California. Our findings confirm the importance of algae in floodplain food webs in California's Central Valley, while also identifying other sources of amino acids contributing to fish.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Soil Science
Michael V. Schaefer, Nathaniel A. Bogie, Daniel Rath, Alison R. Marklein, Abdi Garniwan, Thomas Haensel, Ying Lin, Claudia C. Avila, Peter S. Nico, Kate M. Scow, Eoin L. Brodie, William J. Riley, Marilyn L. Fogel, Asmeret Asefaw Berhe, Teamrat A. Ghezzehei, Sanjai Parikh, Marco Keiluweit, Samantha C. Ying