Results 71 to 80 of about 12,024 (210)

Structure and functional genes associated with carbon, nitrogen, phosphorus, and sulfur cycling processes in periphyton: A comparison between natural and artificial rivers

River, EarlyView.
Network analysis of functional genes among prokaryotes, and eukaryotes in natural and artificial rivers. Abstract Periphyton in aquatic ecosystems plays vital roles in the elemental cycle process and is vulnerable to anthropogenic interference. However, few studies have explored the elemental cycles of carbon (C), nitrogen (N), phosphorus (P), and ...
Yulu Tian, Jiezhang Mo, Jiaxin Liu, Chenghao Li, Jiahua Guo   +4 more
wiley   +1 more source

Nodularia sp. nifH gene transcripts in the Baltic Sea proper [PDF]

Journal of Plankton Research, 2007
While bacterioplankton indisputably control vital biogeochemical paths in the cycling of carbon and nutrients in the world’s oceans, our knowledge about the functional and genetic diversity of bacterioplankton communities is negligible. In this thesis, molecular and more traditional microbiological methods were used to study the specific function of N2-
Kjärstin H. Boström, Lasse Riemann, Ulla Li Zweifel, Åke Hagström   +3 more
openaire   +1 more source

Enhanced CO2 Coordinates the Spatial Recruitment of Diazotrophs in Rice Via Root Development

Plant, Cell &Environment, EarlyView.
ABSTRACT Understanding the reciprocal interaction between root development and coadapted beneficial microbes in response to elevated CO2 (eCO2) will facilitate the identification of nutrient‐efficient cultivars for sustainable agriculture. Here, systematic morphological, anatomical, chemical and gene expression assays performed under low‐nitrogen ...
Junwen Zhao, Yuting Chen, Qi Tao, Lukas Schreiber, Kiran Suresh, Michael Frei, Muhammad Shahedul Alam, Bing Li, Yaping Zhou, Marcel Baer, Frank Hochholdinger, Changquan Wang, Peng Yu   +12 more
wiley   +1 more source

Nitrogen Fertilization Has a Stronger Effect on Soil Nitrogen-Fixing Bacterial Communities than Elevated Atmospheric CO2 [PDF]

, 2014
Biological nitrogen fixation is the primary supply of N to most ecosystems, yet there is considerable uncertainty about how N-fixing bacteria will respond to global change factors such as increasing atmospheric CO2 and N deposition.
Berthrong, Sean T., Eichorst, Stephanie A., Gallegos-Graves, Laverne, Jackson, Robert B., Kuske, Cheryl R., Steven, Blaire, Yeager, Chris M.   +6 more
core   +2 more sources

The Elbe Estuary Microbiome Shifts With Salinity and Discharge and Depends on Fresh Organic Matter and Nutrient Availability

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Microbial diversity within the Elbe Estuary was found to be more strongly governed by seasonal variability, salinity, and discharge than by spatial heterogeneity. Oligohaline regions sustain high diversity, while nutrient and redox conditions drive functional shifts.
Vanessa Russnak, Raphael Koll, Sabine Keuter, Tina Sanders, Kirstin Dähnke   +4 more
wiley   +1 more source

PPIT: an R package for inferring microbial taxonomy from nifH sequences

Bioinformatics, 2021
Abstract Motivation Linking microbial community members to their ecological functions is a central goal of environmental microbiology. When assigned taxonomy, amplicon sequences of metabolic marker genes can suggest such links, thereby offering an overview of the phylogenetic structure underpinning ...
Bennett J Kapili, Anne E Dekas
openaire   +2 more sources

Anthropogenic impact on diazotrophic diversity in the mangrove rhizosphere revealed by nifH pyrosequencing [PDF]

, 2015
Diazotrophs in the mangrove rhizosphere play a major role in providing new nitrogen to the mangrove ecosystem and their composition and activity are strongly influenced by anthropogenic activity and ecological conditions.
Jing, Hongmei, Liu, Hongbin, Nagarajan, Sanjay, Wu, Chen, Xia, Xiaomin, Zhou, Zhi   +5 more
core   +5 more sources

Marine bacterial richness increases towards higher latitudes in the eastern Indian Ocean

Limnology and Oceanography Letters, 2018
We investigated the bacterial community structure in surface waters along a 2500 km transect in the eastern Indian Ocean. Using high throughput sequencing of the 16S rRNA gene, we measured a significant latitudinal increase in bacterial richness from 800
Eric J. Raes, Levente Bodrossy, Jodie van de Kamp, Andrew Bissett, Anya M. Waite   +4 more
doaj   +1 more source

Changes in Acetylene Reduction Activities and nifH Genes Associated with Field-Grown Sweet Potatoes with Different Nursery Farmers and Cultivars

Horticulturae, 2019
Sweet potato cultivars obtained from different nursery farmers were cultivated in an experimental field from seedling-stage to harvest, and the acetylene reduction activity (ARA) of different parts of the plant as well as the nifH genes associated with ...
Kazuhito Itoh, Keisuke Ohashi, Nao Yakai, Fumihiko Adachi, Shohei Hayashi   +4 more
doaj   +1 more source

nifH pyrosequencing reveals the potential for location-specific soil chemistry to influence N2-fixing community dynamics [PDF]

, 2014
A dataset of 87 020 nifH reads and 16 782 unique nifH protein sequences obtained over 2 years from four locations across a gradient of agricultural soil types in Argentina were analysed to provide a detailed and comprehensive picture of the diversity ...
Aguilar, Orlando Mario, Calderoli, Priscila Anabel, Collavino, Mónica Mariana, Donato, Mariano Humberto, Frank, Ildiko E., Tripp, H. James, Vidoz, María Laura, Zehr, Jonathan P.   +7 more
core   +3 more sources