Results 111 to 120 of about 38,650 (270)

Drastic suppression of benthic nitrogen fixation by restructuring diazotrophic communities following tidal wetland conversion to aquaculture ponds

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Tidal wetland reclamation is a widespread anthropogenic disturbance that alters sediment biogeochemistry; however, its impacts on biological nitrogen fixation (BNF) and diazotrophic communities remain poorly understood. Here, we integrated 15N isotope labeling, metagenomic sequencing, and network analysis across a bare tidal flat (B), moderate‐
Can Wang   +11 more
wiley   +1 more source

Surface Water Iron Deposition Histories and the Initiation of Phytoplankton Blooms in the North Pacific Subtropical Gyre

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 1, January 2026.
Abstract Highly productive summer phytoplankton blooms in the central North Pacific Subtropical Gyre (NPSG) are an annual occurrence that leads to the export of considerable amounts of surface particulate carbon to depth. The mechanisms that control the formation of these blooms remain unresolved, but iron (Fe) availability may be an important factor ...
Kyeong Pil Kong   +4 more
wiley   +1 more source

Dinitrogen Complexes of Sulfur-Ligated Iron [PDF]

open access: yes, 2011
We report a unique class of dinitrogen complexes of iron featuring sulfur donors in the ancillary ligand. The ligands utilized are related to the recently studied tris(phosphino)silyl ligands (2-R_2PC_6H_4)_3Si (R = Ph, iPr) but have one or two phosphine
Mankad, Neal P.   +2 more
core   +1 more source

Synchrotron structural biology at SSRL, the beginning and beyond

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 1, Page 7-17, January 2026.
It has been 50 years since the publication in PNAS of our first results on the utilization and demonstrated benefits of synchrotron radiation for macromolecular crystallography. In this brief article, I offer some personal observations and comments about that early research at Stanford and the Stanford Synchrotron Radiation Project (SSRP, later renamed
Keith Hodgson
wiley   +1 more source

Genetic diversity among Frankia strains nodulating members of the family Casuarinaceae in Australia revealed by PCR and restriction fragment length polymorphism analysis with crushed root nodules [PDF]

open access: yes, 1996
DNA extracted directly from nodules was used to assess the genetic diversity of #Frankia# strains symbiotically associated with two species of genus #Casuarina# and two of the genus #Allocasuarina# naturally occuring in northeastern Australia.
Normand, Philippe   +4 more
core  

Cross‐Feeding of Carbon and Nitrogen Between Aquificales and Thermus in Hot Springs

open access: yesEnvironmental Microbiology, Volume 28, Issue 1, January 2026.
Pampinifervens and Thermus populations are co‐distributed in hot springs in Yellowstone and Iceland. Genome reconstruction suggests Pampinifervens Flu05 cross feeds Thermus organic carbon and nitrogen, a phenomenon that was verified via co‐culture studies.
Lisa M. Keller   +3 more
wiley   +1 more source

Effect of water stress on nitrogen fixation and nodule structure of common bean Efeito do estresse hídrico na fixação biológica de nitrogênio e estrutura de nódulos de feijão

open access: yesPesquisa Agropecuária Brasileira, 2003
The aim of this work was to investigate the effect of water stress on N2 fixation and nodule structure of two common bean (Phaseolus vulgaris L.) cultivars Carioca and EMGOPA-201. Plants were harvested after five and eight days of water stress.
Maria Lucrecia Gerosa Ramos   +3 more
doaj   +1 more source

Plant Growth‐Promoting Rhizobacteria Impacting Forage Mass of Urochloa ruziziensis and Megathyrsus maximus: A Reliable New Strategy for Tropical Pastures

open access: yesGrass and Forage Science, Volume 81, Issue 1, January-March 2026.
ABSTRACT Brazil is known for its extensive livestock production in pastures, supporting the world's second‐largest herd of cattle and being the leading beef exporter. However, livestock farming in Brazil has frequently been associated with soil degradation and greenhouse gas (GHG) emissions.
Gabriel Silva Guimarães   +4 more
wiley   +1 more source

A nitrogenase-like enzyme is involved in the novel anaerobic assimilation pathway of a sulfonate, isethionate, in the photosynthetic bacterium Rhodobacter capsulatus

open access: yesmSphere
Prokaryotes contribute to the global sulfur cycle by using diverse sulfur compounds as sulfur sources or electron acceptors. In this study, we report that a nitrogenase-like enzyme (NFL) and a radical SAM enzyme (RSE) are involved in the novel anaerobic ...
Yoshiki Morimoto   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy