Algal-driven priming of cellulose decomposition along a phosphorus gradient in stream mesocosms

2021 ◽  
Author(s):  
Emily Ashberry ◽  
Steven Rier ◽  
Halvor Halvorson ◽  
Kevin Kuehn
Keyword(s):  
Cellulose Decomposition ◽  
Stream Mesocosms

scholarly journals Species richness and species composition of fungal communities associated with cellulose decomposition at different altitudes on the Tibetan Plateau

2009 ◽  
Vol 2 (4) ◽  
pp. 217-224 ◽  
Author(s):  
D. Hirose ◽  
T. Shirouzu ◽  
M. Hirota ◽  
T. Ohtsuka ◽  
Y. Senga ◽  
...  
Keyword(s):  
Species Richness ◽  
Tibetan Plateau ◽  
Species Composition ◽  
Fungal Communities ◽  
The Tibetan Plateau ◽  
Cellulose Decomposition ◽  
Different Altitudes

Cellulose decomposition behavior in hot-compressed aprotic solvents

2008 ◽  
Vol 51 (5) ◽  
pp. 479-486 ◽  
Author(s):  
GuiRong Bao ◽  
Saka Shiro ◽  
Hua Wang
Keyword(s):  
Aprotic Solvents ◽  
Cellulose Decomposition ◽  
Decomposition Behavior

Long-term effects of fire on the composition and activity of the soil microflora of a subalpine, coniferous forest

1980 ◽  
Vol 58 (15) ◽  
pp. 1704-1721 ◽  
Author(s):  
J. Bissett ◽  
D. Parkinson
Keyword(s):  
Microbial Biomass ◽  
Bacterial Flora ◽  
Mineral Soil ◽  
Coniferous Forest ◽  
Soil Microflora ◽  
Subalpine Forest ◽  
Long Term Effects ◽  
Soil Horizons ◽  
Cellulose Decomposition ◽  
Soil Temperatures

The biomass, community composition, and metabolic activity of soil microorganisms were studied in adjacent burnt and unburnt areas of spruce–fir subalpine forest razed 6 years previously by a moderately severe natural fire. Similar levels of microbial biomass were observed at comparable burnt and unburnt sites, although the ratio of fungal to bacterial biomass was higher in the unburnt soils. The decreased acidity of the surface horizons in the burn probably tended to favor the development of a bacterial flora rather than a fungal flora. Microbial biomass in the burnt sites peaked earlier in the season than in the unburnt sites in response to the warmer soil temperatures and earlier thaw in the spring in the burn area.Significant differences in the species composition of the mycoflora in the organic soil horizons were observed between the burnt and unburnt sites. Apparently, these were related to qualitative differences in the recent litter. Phoma, Cladosporium, and Botrytis, which are usually associated with early stages of decomposition of herbaceous litter, were more common in the burnt soil. The mycoflora of the mineral soil horizons varied considerably from one burn site to another, possibly reflecting the geographical variation in the intensity of the burn. In overall composition, however, the mycoflora in the mineral soil horizons of the burn was not appreciably different from that of the unburnt sites.Higher laboratory rates of respiration and cellulose decomposition were observed for soil samples from the undisturbed forest. However, the rate of decomposition of cellulose in the field was much higher in the burnt sites, probably as a result of the higher soil temperatures in the burn area. Low soil temperature was concluded to be the main factor limiting microbial activities in the study area, and the removal of the insulating plant canopy and increased heat absorption by the ash in the burn area were found to increase decomposition rates, at least at this stage in the succession following the disturbance of fire.

Eisenia fetida (Oligochaeta, Lumbricidae) Activates Fungal Growth, Triggering Cellulose Decomposition During Vermicomposting

2006 ◽  
Vol 52 (4) ◽  
pp. 738-747 ◽  
Author(s):  
Manuel Aira ◽  
Fernando Monroy ◽  
Jorge Domínguez
Keyword(s):  
Eisenia Fetida ◽  
Fungal Growth ◽  
Cellulose Decomposition

Ecological effects of an anionic C12-15AE-3S alkylethoxysulfate surfactant in outdoor stream mesocosms

2002 ◽  
Vol 21 (12) ◽  
pp. 2742-2751 ◽  
Author(s):  
Richard E. Lizotte ◽  
Philip B. Dorn ◽  
R. Wade Steinriede ◽  
Diana C. L. Wong ◽  
John H. Odgers
Keyword(s):  
Ecological Effects ◽  
Stream Mesocosms

scholarly journals Cellulose Decomposition by Aerobic Mesophilic Bacteria from Soil

1943 ◽  
Vol 46 (3) ◽  
pp. 273-280 ◽  
Author(s):  
W. H. Fuller ◽  
A. G. Norman
Keyword(s):  
Cellulose Decomposition ◽  
Mesophilic Bacteria

scholarly journals Cellulose Decomposition in Soil Burial Beds

1958 ◽  
Vol 6 (2) ◽  
pp. 115-120 ◽  
Author(s):  
O. R. Ruschmeyer ◽  
E. L. Schmidt
Keyword(s):  
Cellulose Decomposition ◽  
Soil Burial

scholarly journals Thermal decomposition of mercerized linter cellulose and its acetates obtained from a homogeneous reaction

Polímeros ◽  
2011 ◽  
Vol 21 (2) ◽  
pp. 111-117 ◽  
Author(s):  
Daniella L. Morgado ◽  
Elisabete Frollini
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Quantitative Methods ◽  
Homogeneous Medium ◽  
Solvent System ◽  
Homogeneous Reaction ◽  
Reactive Site ◽  
Cellulose Decomposition ◽  
Mechanism Of Thermal Decomposition ◽  
Cellulose Acetates

Cellulose acetates with different degrees of substitution (DS, from 0.6 to 1.9) were prepared from previously mercerized linter cellulose, in a homogeneous medium, using N,N-dimethylacetamide/lithium chloride as a solvent system. The influence of different degrees of substitution on the properties of cellulose acetates was investigated using thermogravimetric analyses (TGA). Quantitative methods were applied to the thermogravimetric curves in order to determine the apparent activation energy (Ea) related to the thermal decomposition of untreated and mercerized celluloses and cellulose acetates. Ea values were calculated using Broido's method and considering dynamic conditions. Ea values of 158 and 187 kJ mol-1 were obtained for untreated and mercerized cellulose, respectively. A previous study showed that C6OH is the most reactive site for acetylation, probably due to the steric hindrance of C2 and C3. The C6OH takes part in the first step of cellulose decomposition, leading to the formation of levoglucosan and, when it is changed to C6OCOCH3, the results indicate that the mechanism of thermal decomposition changes to one with a lower Ea. A linear correlation between Ea and the DS of the acetates prepared in the present work was identified.

scholarly journals Impact of simulated drought on ecosystem biomass production: an experimental test in stream mesocosms

2011 ◽  
Vol 17 (7) ◽  
pp. 2288-2297 ◽  
Author(s):  
MARK E. LEDGER ◽  
FRANCOIS K. EDWARDS ◽  
LEE E. BROWN ◽  
ALEXANDER M. MILNER ◽  
GUY WOODWARD
Keyword(s):  
Biomass Production ◽  
Experimental Test ◽  
Stream Mesocosms ◽  
Simulated Drought
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