Results 51 to 60 of about 3,077 (184)

Virocell Necromass Provides Limited Plant Nitrogen and Elicits Rhizosphere Metabolites That Affect Phage Dynamics

Plant, Cell &Environment, EarlyView.
ABSTRACT Bacteriophages impact soil bacteria through lysis, altering the availability of organic carbon and plant nutrients. However, the magnitude of nutrient uptake by plants from lysed bacteria remains unknown, partly because this process is challenging to investigate in the field.
Vlastimil Novak, Michelle C. M. van Winden, Thomas V. Harwood, Rachel Neurath, Suzanne M. Kosina, Katherine B. Louie, Matthew B. Sullivan, Simon Roux, Karsten Zengler, Vivek K. Mutalik, Trent R. Northen   +10 more
wiley   +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

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

Diazotrophic abundance and community structure associated with three meadow plants on the Qinghai-Tibet Plateau

Frontiers in Microbiology
Symbiotic diazotrophs form associations with legumes and substantially fix nitrogen into soils. However, grasslands on the Qinghai-Tibet Plateau are dominated by non-legume plants, such as Kobresia tibetica.
Jean Bosco Nshimiyimana, Jean Bosco Nshimiyimana, Kang Zhao, Kang Zhao, Wenying Wang, Wenying Wang, Weidong Kong, Weidong Kong   +7 more
doaj   +1 more source

Long-Term Warming in Alaska Enlarges the Diazotrophic Community in Deep Soils

mBio, 2019
Tundra ecosystems are typically carbon (C) rich but nitrogen (N) limited. Since biological N2 fixation is the major source of biologically available N, the soil N2-fixing (i.e., diazotrophic) community serves as an essential N supplier to the tundra ...
Jiajie Feng, C. Ryan Penton, Zhili He, Joy D. Van Nostrand, Mengting M. Yuan, Liyou Wu, Cong Wang, Yujia Qin, Zhou J. Shi, Xue Guo, Edward A. G. Schuur, Yiqi Luo, Rosvel Bracho, Konstantinos T. Konstantinidis, James R. Cole, James M. Tiedje, Yunfeng Yang, Jizhong Zhou   +17 more
doaj   +1 more source

Phosphate modulates elemental and macromolecular composition of unicellular nitrogen‐fixing cyanobacteria

Limnology and Oceanography, Volume 71, Issue 8, August 2026.
Abstract The C : N : P of nitrogen‐fixing cyanobacteria regulates phosphate‐limited nitrogen fixation in the ocean yet the causes and range in variation C : N : P is not well constrained. Here we quantify the C : N : P and underlying macromolecular composition of Crocosphaera.
Sing‐how Tuo, Ying‐Yu Hu, Andrew J. Irwin, Michael J. Follows, Zoe V. Finkel   +4 more
wiley   +1 more source

Bleaching forces coral’s heterotrophy on diazotrophs and Synechococcus [PDF]

The ISME Journal, 2019
Abstract Coral reefs are threatened by global warming, which disrupts the symbiosis between corals and their photosynthetic symbionts (Symbiodiniaceae), leading to mass coral bleaching. Planktonic diazotrophs or dinitrogen (N2)-fixing prokaryotes are abundant in coral lagoon waters and could be an alternative nutrient source for corals ...
Meunier, Valentine, Bonnet, Sophie, Pernice, Mathieu, Benavides, Mar, Lorrain, Anne, Grosso, Olivier, Lambert, Christophe, Houlbreque, Fanny   +7 more
openaire   +5 more sources

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

Benguela Upwelling Filaments Are a Significant Pathway of New Nutrients to the South Atlantic Subtropical Gyre

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract In the transition zones between eastern boundary upwelling regions and subtropical gyres, upwelling and offshore moving filaments generated by frontal instabilities play an important role in the gyre‐ward transport of new nutrients and phytoplankton biomass. However, quantification of such transport using field data remains sparse.
Angèle Nicolas, Cláudio Cardoso, Haoran Liu, Li Qiu, Paulo H. R. Calil, Marcus Dengler, Eric P. Achterberg, Thomas J. Browning   +7 more
wiley   +1 more source

The ASTE‐BGC Data‐Assimilative Regional Ocean Biogeochemical Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract We present a data‐assimilative regional ocean biogeochemical model, ASTE‐BGC, which simulates the physical and biogeochemical state of the North Atlantic Ocean from 2002 to 2017. Model physics are provided by a physical state estimate (ASTE), which assimilates O(109) in situ and satellite‐based observations over the model domain and time ...
L. A. Moseley, G. A. McKinley, D. Carroll, D. Menemenlis, R. Dussin, A. T. Nguyen   +5 more
wiley   +1 more source