Results 111 to 120 of about 3,918 (220)

A Functional Ecological Comparison of three Sponge Species from the Lower Florida Keys [PDF]

, 2017
The shallow, tidal flats off the islands of the lower Florida Keys represent a harsh environment for sessile marine invertebrates. This habitat is home to three taxonomically distinct sponge species that share similar rope morphologies: Cliona varians ...
Griffin, Tyler William, Hill, Malcolm, Prentiss, Clara, Weisz, Jeremy   +3 more
core   +1 more source

Effects of Fallow Season Water and Straw Management on Methane Emissions and Associated Microorganisms

Agronomy
The effects of fallow season water and straw management on methane (CH4) emissions during the fallow season and the subsequent rice-growing season are rarely reported, and the underlying microbial mechanisms remain unclear.
Wei Wang, Qiping Chen, Hexian Huang, Yonghong Xie   +3 more
doaj   +1 more source

Microbial Abundances Predict Methane and Nitrous Oxide Fluxes from a Windrow Composting System [PDF]

, 2017
Manure composting is a significant source of atmospheric methane (CH(4)) and nitrous oxide (N(2)O) that are two potent greenhouse gases. The CH(4) and N(2)O fluxes are mediated by methanogens and methanotrophs, nitrifying and denitrifying bacteria in ...
Jianwen Zou, Lina Song, Qirong Shen, Shuqing Li, Shuwei Liu, Xiang Gao, Yaguo Jin   +6 more
core   +1 more source

Rotary Tillage Plus Mechanical Transplanting Practices Increased Rice Yields with Lower CH₄ Emission in a Single Cropping Rice System

Agriculture
As the main contributor to greenhouse gas (GHG) in paddy soil, information on methane (CH4) emission characteristics under different tillage and cultivation practices are limited.
Linlin Shi, Linlin Dong, Jun Zhang, Jing Huang, Yuan Shen, Yueyue Tao, Haihou Wang, Changying Lu   +7 more
doaj   +1 more source

Detection of Bacteria in Environmental Samples by Direct PCR Without DNA Extraction

BioTechniques, 2001
Cultured cells and environmental samples were used directly in PCRs without the isolation of DNA. Serial dilution was used to eliminate the inhibitory effect of materials in natural samples.
Kimberly A. Fode-Vaughan, Charles F. Wimpee, Charles C. Remsen, Mary Lynne Perille Collins   +3 more
doaj   +1 more source

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

Specific microbial gene abundances and soil parameters contribute to C, N, and greenhouse gas process rates after land use change in Southern Amazonian Soils

Frontiers in Microbiology, 2015
Ecological processes regulating soil carbon (C) and nitrogen (N) cycles are still poorly understood, especially in the world’s largest agricultural frontier in Southern Amazonia.
Daniel Renato Lammel, Daniel Renato Lammel, Brigitte eFeigl, Carlos C Cerri, Klaus eNüsslein   +4 more
doaj   +1 more source

The 371 deg C mechanical properties of graphite/polyimide composites [PDF]

A series of condensation polyimides based on pyromellitic dianhydride is synthesized and evaluated for potential application at 371 C. Several three-and four-ring benzenoid diamine systems containing oxygen bridging groups are investigated ...
Delvigs, P.
core   +1 more source

Methane emissions from an alpine fen in central Switzerland [PDF]

, 2018
Methane emissions and below ground methane pore water concentrations were determined in an alpine fen at 1,915m a.s.l. in central Switzerland. The fen represented an acidic (pH 4.5-4.9), nutrient-poor to mesotrophic habitat dominated by Carex limosa ...
Liebner, Susanne, Schwarzenbach, Simon, Zeyer, Josef   +2 more
core  

Ultra‐deep pyrosequencing of pmoA amplicons confirms the prevalence of Methylomonas and Methylocystis in Sphagnum mosses from a Dutch peat bog [PDF]

, 2011
Nardy Kip, Bas E. Dutilh, Yao Pan, Levente Bodrossy, Kornelia Neveling, Michael Kwint, Mike S. M. Jetten, Huub J. M. Op den Camp   +7 more
openalex   +1 more source