Results 41 to 50 of about 3,356,168 (304)

A 15,800 year record of productivity, carbon accumulation and environmental change at Eight Mile Lake and its catchment, central Alaska

Arctic, Antarctic, and Alpine Research
Despite their efficient burial of organic carbon (OC), the role of high-latitude lakes in storing and processing OC under changing climates is poorly understood.
Leah P. Marshall, Darrell S. Kaufman, Nancy H. Bigelow, Matthew S. M. Bolton, Emily C. Cohen, Brooke M. Damon, Bruce P. Finney, Britta J. L. Jensen, Nicholas P. McKay, Meriel J. Medina, Samuel E. Muñoz, Edward A. G. Schuur, Maurycy Żarczyński   +12 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

The effect of drainage on organic matter accumulation and plant communities of high-altitude peatlands in the Colombian tropical Andes [PDF]

Mires and Peat, 2014
The tropical Andes store and regulate water outflow that serves nearly 60 million people. Most of the water is for un-managed agricultural irrigation.
J.C. Benavides
doaj  

Liver organoids: modelling complexity in homeostasis and disease

FEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Changes in land use are associated with the accumulation of soil phytolith-occluded organic carbon

Ecological Indicators, 2023
Organic carbon occluded in phytoliths is extremely stable and plays important roles in long-term preservation of soil and stable carbon sequestration in terrestrial ecosystems.
Linjiao Wang, Ke Wang, Maoyin Sheng
doaj   +1 more source

Allochthonous and autochthonous contributions to carbon accumulation and carbon accumulation and carbon store in southeastern Australian coastal wetlands [PDF]

, 2013
Estimates of carbon store and carbon accumulation rate in mangrove and saltmarsh are beset by issues of scale and provenance. Estimates at a site do not allow scaling to regional estimates if the drivers of variability are not known.
Woodroffe, C, Saintilan, N, Mazumder, D, Rogers, K   +3 more
core   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Hydroclimatic variations reveal differences in carbon capture in two sympatric conifers in northern Mexico [PDF]

PeerJ, 2019
Background Forest ecosystems are considered among the largest terrestrial carbon sinks. The dynamics of forest carbon depend on where the carbon is stored and its responses to environmental factors, as well as the physiology of the trees.
Marcos González-Cásares, Marín Pompa-García, Alejandro Venegas-González, Pedro Domínguez-Calleros, José Hernández-Díaz, Artemio Carrillo-Parra, Marco González-Tagle   +6 more
doaj   +2 more sources

Organic carbon accumulation in British saltmarshes

Science of The Total Environment
Saltmarshes are a crucial component of the coastal carbon (C) system and provide a natural climate regulation service through the accumulation and long-term storage of organic carbon (OC) in their soils. These coastal ecosystems are under growing pressure from a changing climate and increasing anthropogenic disturbance.
Smeaton, C., Garrett, E., Koot, M.B., Ladd, C.J.T., Miller, L.C., McMahon, L., Foster, B., Barlow, N.L.M., Blake, W., Gehrels, W.R., Skov, M.W., Austin, W.E.N.   +11 more
openaire   +8 more sources