Results 11 to 20 of about 2,961 (133)

Reduction in N₂O Emissions and Improvement in Nitrifier and Denitrifier Communities through Bamboo-Biochar-Based Fertilization in Pomelo Orchard Soil

Agronomy, 2023
Farmland soil is an important source of the greenhouse gas nitrous oxide (N2O), and soil nitrification and denitrification are key processes affecting N2O production.
Qinghua Li, Lin Zhao, Fei Wang, Hongmei Chen, Xiaojie Qian   +4 more
doaj   +1 more source

Niche differentiation of comammox Nitrospira in sediments of the Three Gorges Reservoir typical tributaries, China

Scientific Reports, 2022
Complete ammonia oxidizer (Comammox) can complete the whole nitrification process independently, whose niche differentiation is important guarantee for its survival and ecological function.
Jiahui Zhang, Mingming Hu, Yuchun Wang, Jianwei Zhao, Shanze Li, Yufei Bao, Jie Wen, Jinlong Hu, Mingzhi Zhou   +8 more
doaj   +1 more source

amoA-encoding archaea and thaumarchaeol in the lakes on the northeastern Qinghai-Tibetan Plateau, China

Frontiers in Microbiology, 2013
All known ammonia-oxidizing archaea (AOA) belong to the phylum Thaumarchaeota within the domain Archaea. AOA possess the diagnostic amoA gene (encoding the alpha subunit of ammonia monooxygenase) and produce lipid biomarker thaumarchaeol.
Jian eYang, Hongchen eJiang, Hailiang eDong, Huanye eWang, Geng eWu, Weiguo eHou, Weiguo eLiu, Chuanlun eZhang, Yongjuan eSun, Zhongping eLai   +9 more
doaj   +1 more source

Biochar Addition Inhibits Nitrification by Shifting Community Structure of Ammonia-Oxidizing Microorganisms in Salt-Affected Irrigation-Silting Soil

Microorganisms, 2022
Biochar has been widely recognized as an effective and eco-friendly ameliorant for saline soils, but information about the mechanism of how biochar influences nitrification in salt-affected agroecosystem remains fragmented.
Rong-Jiang Yao, Hong-Qiang Li, Jing-Song Yang, Xiang-Ping Wang, Wen-Ping Xie, Xing Zhang   +5 more
doaj   +1 more source

Ammonia oxidizers in the sea-surface microlayer of a coastal marine inlet. [PDF]

PLoS ONE, 2018
Planktonic archaea are thought to play an important role in ammonia oxidation in marine environments. Data on the distribution, abundance, and diversity of ammonia oxidizers in the coastal sea-surface microlayer (SML) are lacking, despite previous ...
Shu-Kuan Wong, Minoru Ijichi, Ryo Kaneko, Kazuhiro Kogure, Koji Hamasaki   +4 more
doaj   +1 more source

Global ecological pattern of ammonia-oxidizing archaea. [PDF]

PLoS ONE, 2013
BACKGROUND: The global distribution of ammonia-oxidizing archaea (AOA), which play a pivotal role in the nitrification process, has been confirmed through numerous ecological studies.
Huiluo Cao, Jean-Christophe Auguet, Ji-Dong Gu   +2 more
doaj   +1 more source

The ecological dichotomy of ammonia-oxidizing archaea and bacteria in the hyper-arid soils of the Antarctic Dry Valleys

Frontiers in Microbiology, 2014
The McMurdo Dry Valleys of Antarctica are considered to be one of the most physically and chemically extreme terrestrial environments on the Earth. However, little is known about the organisms involved in nitrogen transformations in these environments ...
Catarina Maria Magalhães, Ana eMachado, Béatrice eFrank-Fahle, Charles K. Lee, Craig S. Cary, Craig S. Cary   +5 more
doaj   +1 more source

Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow

Agronomy, 2023
Human activities and global climate change have greatly increased nitrogen (N) and phosphorus (P) inputs and altered precipitation patterns in alpine meadows.
Haiyan Li, Jiaqi Zhang, Dashuan Tian, Yinghui Liu, Jingyi Dong   +4 more
doaj   +1 more source

Effects of macrobenthic bioturbation on the abundance and community composition of ammonia-oxidizing prokaryotes under different temperatures

Journal of Freshwater Ecology, 2017
In order to investigate the effects of macrobenthos on the abundance and community composition of ammonia-oxidizing prokaryotes under different temperature conditions, laboratory microcosms containing two kinds of macrobenthos (Corbicula fluminea and ...
Dayong Zhao, Xinyi Cao, Jin Zeng, Rui Huang, Zhongbo Yu   +4 more
doaj   +1 more source

Occurrence and abundance of ammonia‐oxidizing archaea and bacteria from the surface to below the water table, in deep soil, and their contributions to nitrification

MicrobiologyOpen, 2017
Using molecular biology methods (qualitative and quantitative PCR), we determined the occurrence and abundance of ammonia‐oxidizing archaea (AOA) and ammonia‐oxidizing bacteria (AOB) from a dry inland soil in Basel, Switzerland, and from the riparian ...
Lei Zheng, Xue Zhao, Guibing Zhu, Wei Yang, Chao Xia, Tao Xu   +5 more
doaj   +1 more source