Results 1 to 10 of about 12,024 (210)

Molecular evidence for sediment nitrogen fixation in a temperate New England estuary [PDF]

PeerJ, 2016
Primary production in coastal waters is generally nitrogen (N) limited with denitrification outpacing nitrogen fixation (N2-fixation). However, recent work suggests that we have potentially underestimated the importance of heterotrophic sediment N2 ...
Silvia E. Newell, Kaitlyn R. Pritchard, Sarah Q. Foster, Robinson W. Fulweiler   +3 more
doaj   +6 more sources

ANALISIS AKTIVITAS NITROGENASE DAN GEN NIFH ISOLAT BAKTERI RHIZOSFER TANAMAN PADI DARI LAHAN SAWAH PESISIR JAWA BARAT [PDF]

Al-Kauniyah Jurnal Biologi, 2016
Abstrak Penambatan nitrogen oleh bakteri rhizosfer dapat dimanfaatkan untuk menyiasati dampak salinitas pada tanah sawah pesisir. Kemampuan tersebut disebabkan oleh aktivitas nitrogenase yang disandikan gen nifH pada komponen II.
Dwi Ningsih Susilowati, Mamik Setyowati
doaj   +6 more sources

Response of biological soil crust diazotrophs to season, altered summer precipitation and year-round increased temperature in an arid grassland of the Colorado Plateau, USA

Frontiers in Microbiology, 2012
Biological soil crusts (biocrusts), which supply significant amounts of fixed nitrogen into terrestrial ecosystems worldwide (~33 Tg y-1), are likely to respond to changes in temperature and precipitation associated with climate change.
Chris M Yeager, Cheryl R Kuske, Travis D Carney, Shannon L Johnson, Lawrence O Ticknor, Jayne eBelnap   +5 more
doaj   +1 more source

NIFtHool: an informatics program for identification of NifH proteins using deep neural networks [version 1; peer review: 2 approved]

F1000Research, 2022
Atmospheric nitrogen fixation carried out by microorganisms has environmental and industrial importance, related to the increase of soil fertility and productivity.
Marco Esteban Gudiño Gomezjurado, Diego Almeida-Galárraga, Evelyn Dayana Aguiar Salazar, Fernando Villalba-Meneses, Graciela Salum, Jefferson Daniel Suquilanda-Pesántez   +5 more
doaj   +1 more source

Global biogeography of N₂-fixing microbes: nifH amplicon database and analytics workflow [PDF]

Earth System Science Data
Marine dinitrogen (N2) fixation is a globally significant biogeochemical process carried out by a specialized group of prokaryotes (diazotrophs), yet our understanding of their ecology is constantly evolving. Although marine N2 fixation is often ascribed
M. Morando, J. D. Magasin, S. Cheung, S. Cheung, M. M. Mills, J. P. Zehr, K. A. Turk-Kubo   +6 more
doaj   +1 more source

Harnessing synthetic microbial communities with nitrogen-fixing activity to promote rice growth

Open Agriculture
Improving the biological nitrogen fixation of rhizosphere bacteria in rice is expected to improve plant growth and productivity. Most studies have focused on the application of a single N2-fixing bacterium on rice plants.
Tran Van Chi, Nguyen Thanh Hai, Hoang Thi Lan Anh, Pham Thi Tuyet Mai, Nguyen Tuan Manh, Tran Trong Dai, Nguyen Thi Huong Giang, Han Viet-Cuong, Tran Anh Tuan, La Van Hien   +9 more
doaj   +1 more source

Molecular Analysis of the Microbial Guild Fixing Nitrogen in Ricefield Soils in Missouri

Microbiology Research
Non-symbiotic diazotrophic microbes are important contributors to global N budgets in cereal crops. Knowledge of the biogeography of the organisms in this functional guild increases our understanding of biological N fixation in diverse locations and ...
Prithi R. Sawli, Mark A. Buchheim, Mark A. Schneegurt   +2 more
doaj   +1 more source

Possible association of diazotrophs with marine zooplankton in the Pacific Ocean

MicrobiologyOpen, 2016
Dinitrogen fixation, the biological reduction in N2 gas to ammonia contributes to the supply of new nitrogen in the surface ocean. To understand the diversity and abundance of potentially diazotrophic (N2 fixing) microorganisms associated with marine ...
Kazi Md. Azimuddin, Junya Hirai, Shotaro Suzuki, Md. Nurul Haider, Aiko Tachibana, Keigo Watanabe, Minoru Kitamura, Fuminori Hashihama, Kazutaka Takahashi, Koji Hamasaki   +9 more
doaj   +1 more source

Nitrogenase (nifH) gene expression in diazotrophic cyanobacteria in the Tropical North Atlantic in response to nutrient amendments

Frontiers in Microbiology, 2012
The Tropical North Atlantic (TNAtl) plays a critical role in the marine nitrogen cycle, as it supports high rates of biological nitrogen (N2) fixation, yet it is unclear whether this process is limited by the availability of iron (Fe), phosphate (P) or ...
Kendra A Turk-Kubo, Katherine M Achilles, Katherine M Achilles, Tracy RC Serros, Mari eOchiai, Mari eOchiai, Joseph P Montoya, Jonathan P Zehr   +7 more
doaj   +1 more source

Influence of ammonium and moisture on survival and nifH transcription in the diazotrophic Pseudomonas mendocina S10

Notulae Scientia Biologicae, 2020
Nitrogen is important for crop productivity and usually added in form of urea into the soil which negatively affects the environment. It is important to utilize nitrogen fixing bacteria for improving the nitrogen content of soil in India.
Sushma SHARMA, Dileep K. SINGH
doaj   +1 more source