Results 91 to 100 of about 5,856 (217)

Characterization of diazotrophs containing Mo-independent nitrogenases from diverse natural environments

, 2003
Our laboratory was the first to identify the presence of Mo-independent nitrogenases in Azotobacter vinelandii and in seven isolates from aquatic environments. In this study we extended our search to other environments such as wood chip mulch, soil, and
Betancourt, Doris Alicia
core  

Nitrogen fixation rate of Trichodesmium spp. and unicellular diazotrophs in the North Pacific Subtropical Gyre [PDF]

, 2011
Nitrogen fixation rate of Trichodesmium spp.
Carpenter, E J, Sohm, Jill A, Subramaniam, Ajit, Gunderson, Troy E, Capone, D G, Troy E Gunderson (6968405), D G Capone (6966536), E J Carpenter (6966539), Ajit Subramaniam (7976456), Jill A Sohm (6968402), Capone, Douglas G., Gunderson, Troy E., Sohm, Jill A., Carpenter, Edward J.   +13 more
core   +1 more source

Riverine nitrate and nitrification cannot be the only sources for nitrate assimilation in the Amazon River Plume margins

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract The Northern Amazon River Plume plays a crucial role in carbon sequestration and nitrogen cycling. This study quantified NO3− budgets along the plume during a period of high discharge, revealing NO3− uptake rates in excess of inputs from riverine sources and nitrification beyond 5°N.
Noémie Choisnard, Ajit Subramaniam, Joseph P. Montoya, Jacqueline Umbricht, Maren Voss   +4 more
wiley   +1 more source

Development of modular expression across phylogenetically distinct diazotrophs [PDF]

Diazotrophic bacteria can reduce atmospheric nitrogen into ammonia enabling bioavailability of the essential element. Many diazotrophs closely associate with plant roots increasing nitrogen availability, acting as plant growth promoters.
Kuo, Rita, Kulakowski, Shawn, Mengel, Sonya, Rivier, Alex, Eng, Thomas   +4 more
core   +1 more source

Diverse diazotrophs are present on sinking particles in the North Pacific Subtropical Gyre [PDF]

, 2019
Sinking particles transport carbon and nutrients from the surface ocean into the deep sea and are considered hot spots for bacterial diversity and activity.
James R. Collins, Collins, James R.,, Benjamin A. S. Van Mooy, Ploug, Helle, Hanna Farnelid, Zehr, Jonathan P.,, Justin E. Ossolinski, Ossolinski, Justin E.,, Collins, James R, Van Mooy, Benjamin A. S., Farnelid, Hanna,, Jonathan P. Zehr, Turk-Kubo, Kendra, van Mooy, Benjamin A. S.,, Helle Ploug, Zehr, Jonathan P, Kendra Turk-Kubo, Van Mooy, Benjamin AS, Ossolinski, Justin E, Ploug, Helle,, Turk-Kubo, Kendra,, Farnelid, Hanna   +21 more
core   +1 more source

Comparison of Benefit to Sugarcane Plant Growth and 15N2 Incorporation Following Inoculation of Sterile Plants with Acetobacter diazotrophicus Wild-Type and Nif¯ Mutant Strains

Molecular Plant-Microbe Interactions, 2001
The ability of the nitrogen-fixing bacterial endophyte Acetobacter diazotrophicus strain PAl5 to enhance the growth of sugarcane SP70-1143 was evaluated in the growth chamber, greenhouse, and field by comparing plants inoculated with wild-type and Nif ...
Myrna Sevilla, Robert H. Burris, Nirmala Gunapala, Christina Kennedy   +3 more
doaj   +1 more source

Giant phytoplankton revealed by in situ imaging

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Deployment of an autonomous Zooglider in the western Mediterranean Sea revealed the presence of long phytoplankton chains attaining maximum lengths of 6.4–10.4 mm suspended in situ. Elongate chains included the diatoms Guinardia, Proboscia, two other diatom morphologies, and solitary filaments of the cyanobacterium Trichodesmium. Most elongate
Mark D. Ohman, Karine Leblanc, Jeffrey S. Ellen, Sven Gastauer   +3 more
wiley   +1 more source

Composition and distribution of diazotrophs in the Baltic Sea

, 2023
Nitrogen (N2) fixation rates in the brackish Baltic Sea are among the highest per unit of area in the world. However, beyond the filamentous heterocyst-forming cyanobacteria, knowledge about the composition and distribution of N2-fixing microbes ...
Kesy, Katharina, Jonathan Magasin, Labrenz, Matthias, Peeter Laas, Søren Hallstrøm, Turk-kubo, Kendra A., Salamon Slater, Ellen R., Ellen R. Salamon Slater, Lasse Riemann, Kendra A. Turk-Kubo, Magasin, Jonathan, Hallstrøm, Søren, Katharina Kesy, Jonathan P. Zehr, Matthias Labrenz, Laas, Peeter, Zehr, Jonathan P., Riemann, Lasse   +17 more
core   +1 more source

Diazotroph Diversity and Nitrogen Fixation in Summer Active Perennial Grasses in a Mediterranean Region Agricultural Soil

Frontiers in Molecular Biosciences, 2019
Summer-growing perennial grasses such as Panicum coloratum L. cv. Bambatsi (Bambatsi panic), Chloris gayana Kunth cv. Katambora (Rhodes grass) and Digitaria eriantha Steud. cv.
Vadakattu V. S. R. Gupta, Bangzhou Zhang, Bangzhou Zhang, Christopher Ryan Penton, Christopher Ryan Penton, Julian Yu, Julian Yu, James M. Tiedje   +7 more
doaj   +1 more source

Synergy of diazotrophs with native soil microbes improves poplar traits

Industrial Crops and Products
Nitrogen (N) nutrients are crucial for poplar (Populus L.) survival and growth. However, whether N-fixing rhizosphere microorganisms (diazotrophs) regulate plant productivity and to what extent remain poorly understood.
Ruoxian Fu, Li Liu, Zichen Wang, Zhe Hua, Shuikuan Bei, Yuanchun Yu, Xiaogang Li   +6 more
doaj   +1 more source