Results 51 to 60 of about 673,761 (305)

Reduction in nitrification during the early transition from conventional to organic farming practices

open access: yesEcosphere
Little is known about the nitrogen transformation dynamics during the early transition phase from conventional to organic farming. We investigated changes in microbial N‐cycling in agricultural fields transitioning from conventional to organic farming ...
Jacob R. Price   +4 more
doaj   +1 more source

Convergent dynamics and shared mechanisms of three-pool soil carbon mineralization under different grassland managements

open access: yesJournal of Integrative Agriculture
The mineralization dynamics of soil organic carbon (SOC) in grasslands are crucial to terrestrial biogeochemical cycles. However, the regulatory mechanisms underlying extracellular enzyme metabolism and microbial community structure during SOC ...
Junhao Feng   +7 more
doaj   +1 more source

Quorum Sensing System of Ruegeria mobilis Rm01 Controls Lipase and Biofilm Formation

open access: yesFrontiers in Microbiology, 2019
Quorum sensing (QS) promotes in situ extracellular enzyme (EE) activity via the exogenous signal N-acylhomoserine lactone (AHL), which facilitates marine particle degradation, but the species that engage in this regulatory mechanism remain unclear. Here,
Ying Su   +9 more
doaj   +1 more source

The extracellular enzymes of Coniophora cerebella [PDF]

open access: yesBiochemical Journal, 1966
1. The extracellular enzymes present in the culture filtrates of Coniophora cerebella grown on various carbohydrate carbon sources were investigated. Enzymes that degraded cellulose derivatives, hemicellulose fractions, starch, laminarin, pectin and several oligosaccharides were detected. 2.
openaire   +3 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Abiotic and biotic factors in the nutrient solution and filter skin (Schmutzdecke) of slow filters integrated to closed hydroponic greenhouse systems [PDF]

open access: yes, 2006
Rapid pathogen dispersal by circulating nutrient solutions in closed hydroponic systems poses a major threat to this production method. Slow filtration is very effective against important fungal pathogens such as Phytophthora cryptogea and Pythium ...
Furtner, Bernhard
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Enzymatic Analysis of Yeast Cell Wall-Resident GAPDH and Its Secretion

open access: yesmSphere, 2020
In yeast, many proteins are found in both the cytoplasmic and extracellular compartments, and consequently it can be difficult to distinguish nonconventional secretion from cellular leakage.
Michael J. Cohen   +2 more
doaj   +1 more source

Extracellular Enzymes of Microorganisms [PDF]

open access: yes, 1987
Czechoslovak Society for Microbiology and Institute of Microbiology of the Czechoslovak Academy of Sciences organized an international symposium "Extracellular enzymes of microorganisms" in September 1986. The symposium took place in a small South-Bohemian town Bechyne and this book includes the main contributions presented at the meeting. The study of
openaire   +1 more source

A comparative study of enzyme immobilization strategies for multi-walled carbon nanotube glucose biosensors

open access: yes, 2011
This work addresses the comparison of different strategies for improving biosensor performance using nanomaterials. Glucose biosensors based on commonly applied enzyme immobilization approaches, including sol-gel encapsulation approaches and ...
Claussen, Jonathan C.   +17 more
core   +1 more source

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