Results 71 to 80 of about 9,963 (249)

Metagenomic and metabolic profiling of nonlithifying and lithifying stromatolitic mats of Highborne Cay, The Bahamas. [PDF]

PLoS ONE, 2012
BACKGROUND: Stromatolites are laminated carbonate build-ups formed by the metabolic activity of microbial mats and represent one of the oldest known ecosystems on Earth. In this study, we examined a living stromatolite located within the Exuma Sound, The
Christina L M Khodadad, Jamie S Foster
doaj   +1 more source

High Tree Species Diversity Promotes Thermal Enhancement Response of Microbial Carbon Use Efficiency

Advanced Science, EarlyView.
ABSTRACT Predicting soil carbon dynamics under warming is constrained by limited understanding of microbial thermal adaptation, particularly whether microbial carbon use efficiency (CUE) can adapt to warming and how plant diversity modulates this response. Using soils from a natural tree species diversity gradient in a subtropical forest, we combined a
Pengpeng Duan, Changqing Ye, Xinyi Yang, Chaoqun Wang, Wolfgang Wanek, Jian‐sheng Ye, Hongzhao Yuan, Hu Du, Kongcao Xiao, Xunyang He, Kelin Wang, Dejun Li   +11 more
wiley   +1 more source

Bioengineered Exosome‐Loaded Immunomodulatory Bioadhesive Spray Reverses Liver Fibrosis and Metabolic Dysfunction That Triggers Beneficial Gut‐Liver Crosstalk in Chronic Fatty Liver Disease

Advanced Science, EarlyView.
Umbilical cord stem cell‐derived exosomes encapsulated in an immunomodulatory bioadhesive hydrogel spray enable localized therapy, sustained vesicle delivery, macrophage polarization, suppress systemic inflammation, and mitigate glucose and insulin homeostasis impairments in MAFLD.
Triya Saha, Ayushi Mairal, Shreya Mehrotra, Shiv K. Sarin, Ashok Kumar   +4 more
wiley   +1 more source

From the sea to the land: How microbial mats dominated marine and continental environments in the Ediacaran Camaquã Basin, Brazil

Geosystems and Geoenvironment
Precambrian sedimentary successions exposed worldwide record microbial deposits within both marine and continental strata. The Camaquã Basin records the transition from the Ediacaran to Cambrian periods in strata that comprise marine to lacustrine ...
Ilana Lehn, Paulo Sérgio Gomes Paim, Farid Chemale, Jr.   +2 more
doaj   +1 more source

Understanding the Mechanisms Behind the Response to Environmental Perturbation in Microbial Mats: A Metagenomic-Network Based Approach

Frontiers in Microbiology, 2018
To date, it remains unclear how anthropogenic perturbations influence the dynamics of microbial communities, what general patterns arise in response to disturbance, and whether it is possible to predict them. Here, we suggest the use of microbial mats as
Valerie De Anda, Icoquih Zapata-Peñasco, Jazmín Blaz, Augusto Cesar Poot-Hernández, Bruno Contreras-Moreira, Bruno Contreras-Moreira, Marcos González-Laffitte, Niza Gámez-Tamariz, Maribel Hernández-Rosales, Luis E. Eguiarte, Valeria Souza   +10 more
doaj   +1 more source

Oral Delivery Systems for Food‐Derived Bioactive Peptides: Enhancing Stability, Bioavailability, and Health Benefits

Advanced Science, EarlyView.
Advanced delivery systems—including nanoparticles, nanoemulsions, liposomes, and hydrogels—protect food‐derived bioactive peptides from gastrointestinal degradation and bitterness. These systems enable pH‐responsive release, enhance intestinal absorption, and improve therapeutic efficacy against oxidative stress, metabolic disorders, cancer, and ...
Yu Xu, Fan Li, Runan Zhao, Tao Shu, Weihong Min, Bei‐Wei Zhu   +5 more
wiley   +1 more source

Computer Vision Pipeline for Image Analysis for Freeze‐Fracture Electron Microscopy: Rosette Cellulose Synthase Complexes Case

Advanced Intelligent Discovery, EarlyView.
This paper presents a computer vision (deep learning) pipeline integrating YOLOv8 and YOLOv9 for automated detection, segmentation, and analysis of rosette cellulose synthase complexes in freeze‐fracture electron microscopy images. The study explores curated dataset expansion for model improvement and highlights pipeline accuracy, speed ...
Siri Mudunuri, Leala Carbonneau, Eric M. Roberts, Alison W. Roberts, Candace H. Haigler, Alexey V. Gulyuk, Yaroslava G. Yingling   +6 more
wiley   +1 more source

Spirochetes and salt marsh microbial mat geochemistry: Implications for the fossil record

Carnets de Géologie, 2008
Microbial mats are synergistic microbial consortia through which major elements, including sulfur, are cycled due to microbial and geological processes.
Stephens Elizabeth A., Braissant Olivier, Visscher Pieter T.   +2 more
doaj  

Microbial diversity in sediment ecosystems (evaporites domes, microbial mats and crusts) of hypersaline Laguna Tebenquiche, Salar de Atacama, Chile

Frontiers in Microbiology, 2016
We combined nucleic acid-based molecular methods, biogeochemical measurements and physicochemical characteristics to investigate microbial sedimentary ecosystems of Laguna Tebenquiche, Atacama Desert, Chile.
Ana Beatriz Fernandez, Maria Cecilia Rasuk, Pieter T Visscher, Pieter T Visscher, Manuel Contreras, Fernando Novoa, Daniel Poire, Molly M patterson, Antonio Ventosa, Maria Eugenia Farias   +9 more
doaj   +1 more source

The role of venture‐financed startups in innovation for US agriculture

American Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff, Charles A. W. de Grazia, Nicholas E. Rada   +2 more
wiley   +1 more source