Results 61 to 70 of about 4,247,719 (263)

Quantitative microbial ecology through stable isotope probing

, 2015
Bacteria grow and transform elements at different rates, yet quantifying this variation in the environment is difficult. Determining isotope enrichment with fine taxonomic resolution after exposure to isotope tracers could help, but there are few ...
J Gregory Caporaso, Ember M Morrissey, Cindy M Liu, Paul Dijkstra, Egbert Schwartz, Bruce A Hungate, Jane C Marks, Natasja van Gestel, Rebecca L Mau, Theresa A McHugh, Benjamin J Koch, Lance B Price   +11 more
core   +1 more source

Freezing and chemical preservatives alter the stable isotope values of carbon and nitrogen of the Asiatic clam (Corbicula fluminea) [PDF]

, 2010
We tested the impacts of most common sample preservation methods used for aquatic sample materials on the stable isotope ratios of carbon and nitrogen in clams, a typical baseline indicator organism for many aquatic food web studies utilising stable ...
Dorothée Kopp, Aurélia Martino, Santoul, Frédéric, Céréghino, Régis, Frédéric Santoul, Kopp, Dorothée, Régis Céréghino, Syväranta, Jari, Jari Syväranta, Martino, Aurelia   +9 more
core   +1 more source

Targeting the KAT7/H3K14ac/RAC2 Axis Mediates OXPHOS to Promote Stemness Maintenance and Malignancy in Glioblastoma

Advanced Science, EarlyView.
SOX2 upregulates KAT7 in glioma stem cells, where KAT7 deposits H3K14 acetylation at the RAC2 promoter to activate RAC2 transcription. RAC2‐GTP subsequently promotes PAK1/2/3 phosphorylation, increasing tricarboxylic acid cycle flux and mitochondrial respiration to support glioblastoma malignancy.
Jilong Liu, Yanfei Sun, Yuehua Zhu, Guangjing Mu, Jiazheng Wang, Liangliang Wang, Feihu Zhao, Zhimin Zhao, Jian Wang, Ying He, Zheng Jiang, Xingang Li, Mingzhi Han, Bin Huang   +13 more
wiley   +1 more source

Measurement Error and Resolution in Quantitative Stable Isotope Probing: Implications for Experimental Design

mSystems, 2020
Quantitative stable isotope probing (qSIP) estimates isotope tracer incorporation into DNA of individual microbes and can link microbial biodiversity and biogeochemistry in complex communities. As with any quantitative estimation technique, qSIP involves
Ella T. Sieradzki, Benjamin J. Koch, Alex Greenlon, Rohan Sachdeva, Rex R. Malmstrom, Rebecca L. Mau, Steven J. Blazewicz, Mary K. Firestone, Kirsten S. Hofmockel, Egbert Schwartz, Bruce A. Hungate, Jennifer Pett-Ridge   +11 more
doaj   +1 more source

Endogenous biohydrogen from a rhizobium-legume association drives microbial biodegradation of polychlorinated biphenyl in contaminated soil

Environment International, 2023
Endogenous hydrogen (H2) is produced through rhizobium-legume associations in terrestrial ecosystems worldwide through dinitrogen fixation. In turn, this gas may alter rhizosphere microbial community structure and modulate biogeochemical cycles. However,
Yongfeng Xu, Ying Teng, Xiaomi Wang, Wenjie Ren, Ling Zhao, Yongming Luo, Peter Christie, Chris Greening   +7 more
doaj   +1 more source

DNA stable-isotope probing identifies uncultivated members of Pseudonocardia associated with biodegradation of pyrene in agricultural soil [PDF]

FEMS Microbiology Ecology, 2018
Identifying functional microorganisms involved in the degradation of high-molecular-mass polycyclic aromatic hydrocarbons (HMM-PAHs) in agricultural soil environments could assist in developing bioremediation strategies for soil PAH contamination. Active populations of HMM-PAH degraders in agricultural soils are currently poorly understood.
Song-Can Chen, Gui-Lan Duan, Kai Ding, Fu-Yi Huang, Yong-Guan Zhu   +4 more
openaire   +2 more sources

Restoring Endothelial Mitochondrial Homeostasis With a Bioactive Nanoshield Promotes Vascular Regeneration on Cardiovascular Implants

Advanced Science, EarlyView.
A bioactive poly(citrate‐polyglycol‐procyanidin) (PCGP) nanoshield is developed for cardiovascular implants to restore endothelial mitochondrial homeostasis following vascular injury. By preserving mitochondrial integrity, re‐establishing metabolic balance, and activating PI3K/Akt/eNOS‐NO signaling, the PCGP interface promotes functional endothelial ...
Xiyu Liu, Wen Zhang, Lunxin Liu, Lan Gui, Yumei Qin, Xiaohui Yang, Longjian Zhang, Chaohua Wang, Jinpeng Hu, Gaoyang Guo, Qing Jiang, Jin Wang, Li Yang, Bo Zhang, Yunbing Wang   +14 more
wiley   +1 more source

Methodological considerations for the use of stable isotope probing in microbial ecology

, 2006
Stable isotope probing (SIP) is a method used for labeling uncultivated microorganisms in environmental samples or directly in field studies using substrate enriched with stable isotope (e.g., C-13).
Dumont, Marc G., Vohra, Jyotsna, Neufeld, Josh D., Murrell, J. C. (J. Colin), Dumont, Marc, Murrell, J. Colin, Neufeld, Josh D, J. Colin Murrell, Marc G. Dumont, Josh D. Neufeld, Jyotsna Vohra   +10 more
core   +2 more sources

Magnetic Resonance Reveals Radical Stability in Native Biofilms and Its Role in Bacterial Resistance

Angewandte Chemie, EarlyView.
The complex biofilm environment consists of planktonic bacterial cells and cells embedded in an extracellular matrix (ECM). Through an integrated magnetic resonance approach, we show that nitroxide radicals primarily interact with the polysaccharides and lipids in the ECM.
Alysia Mandato, Hannah Hunter, Sadhana Srinivasa, Chang‐Hyeock Byeon, Abdulkadir Tunc, Meghan K. Wells, Faith J. Scott, Frederic Mentink‐Vigier, Wook Kim, Sunil Saxena, Ümit Akbey   +10 more
wiley   +2 more sources

Impact of plants on the diversity and activity of methylotrophs in soil

Microbiome, 2020
Background Methanol is the second most abundant volatile organic compound in the atmosphere, with the majority produced as a metabolic by-product during plant growth.
Michael C. Macey, Jennifer Pratscher, Andrew T. Crombie, J. Colin Murrell   +3 more
doaj   +1 more source