Results 81 to 90 of about 56,090 (325)

Understanding stoichiometric adjustments in a freshwater plant: Responses to sediment and water nutrient dynamics across lake trophic gradients

Limnology and Oceanography, EarlyView.
Abstract Despite ongoing efforts to reduce nutrient inputs, eutrophication continues to disrupt biogeochemical cycles and destabilize freshwater food webs. In this study, we examine the stoichiometric responses of the freshwater plant Myriophyllum spicatum under varied environmental conditions across lakes of differing trophic status.
Michał Rybak, Jakub Szymkowiak, Magdalena Woźniak, Tomasz Joniak, Piotr Klimaszyk, Łukasz Wejnerowski, Izabela Ratajczak, Mandy Velthuis   +7 more
wiley   +1 more source

Microbial communities in dark oligotrophic volcanic ice cave ecosystems of Mt. Erebus, Antarctica

Frontiers in Microbiology, 2015
The Earth’s crust hosts a subsurface, dark, and oligotrophic biosphere that is poorly understood in terms of the energy supporting its biomass production and impact on food webs at the Earth’s surface.
Bradley M. Tebo, Richard E. Davis, Roberto P. Anitori, Laurie B. Connell, Peter eSchiffman, Hubert eStaudigel   +5 more
doaj   +1 more source

A low oxygen threshold for physiological responses and trace metal quotas of Prochlorococcus and Synechococcus

Limnology and Oceanography, EarlyView.
Abstract Continued human activity is expected to accelerate ocean deoxygenation, leading to the expansion and shallowing of oxygen‐deficient zones (ODZs). This decline in oxygen may impact both phytoplankton growth and trace metal uptake. We conducted culture experiments with Prochlorococcus MIT9313 and Synechococcus XM‐24, two numerically dominant ...
Joan De Vera, Yuanyuan Feng, Feixue Fu, Shun‐Chung Yang, Amjad Mansour, Nicholas J. Hawco, David A. Hutchins, Seth G. John   +7 more
wiley   +1 more source

Synechocystis PCC 6803 overexpressing RuBisCO grow faster with increased photosynthesis

Metabolic Engineering Communications, 2017
The ribulose-1,5-bisphosphate (RuBP) oxygenation reaction catalyzed by Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is competing with carboxylation, being negative for both energy and carbon balances in photoautotrophic organisms. This makes
Feiyan Liang, Peter Lindblad
doaj   +1 more source

Three novel science activities relating to the structure of the atom, bioinformatics, and the denaturation of protein [PDF]

, 2013
Plan B Paper. 2013. Master of Science in Education- Physics--University of Wisconsin-River Falls. Physics Department. 30 leaves. Includes bibliographical references (leaf 10).This paper describes three novel activities that were designed to teach ...
Duerst, Robert
core   +1 more source

Interactions of rare earth elements with living organisms and emerging biotechnical applications

PLANTS, PEOPLE, PLANET, EarlyView.
Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey, Shagufta Iqbal, Annamaria De Rosa, Jessica A. Caley, Anna H. Kaksonen, Denys Villa‐Gomez, Caitlin S. Byrt   +6 more
wiley   +1 more source

Crystal structure of activated ribulose-1,5-bisphosphate carboxylase complexed with its substrate, ribulose-1,5-bisphosphate

Journal of Biological Chemistry, 1991
The three-dimensional structure of the complex of ribulose-1,5-bisphosphate carboxylase from Rhodospirillum rubrum, CO2, Mg2+, and ribulose bisphosphate has been determined with x-ray crystallographic methods to 2.6-A resolution. Ribulose-1,5-bisphosphate binds across the active site with the two phosphate groups in the two phosphate binding sites of ...
T Lundqvist, Gunter Schneider
openaire   +3 more sources

Reflectance spectroscopy predicts leaf functional traits across wine grape cultivars

PLANTS, PEOPLE, PLANET, EarlyView.
Characterizing variability in crop traits is key for understanding agroecosystem responses to environmental change. However, trait data are often time‐consuming to collect and therefore still limit our understanding and predictions of agriculture responses to environmental change.
Boya Cui, Rachel Mariani, Kimberley A. Cathline, Gavin Robertson, Adam R. Martin   +4 more
wiley   +1 more source

Crystal Structures of Putative Sugar Kinases from Synechococcus Elongatus PCC 7942 and Arabidopsis Thaliana.

PLoS ONE, 2016
The genome of the Synechococcus elongatus strain PCC 7942 encodes a putative sugar kinase (SePSK), which shares 44.9% sequence identity with the xylulose kinase-1 (AtXK-1) from Arabidopsis thaliana. Sequence alignment suggests that both kinases belong to
Yuan Xie, Mei Li, Wenrui Chang
doaj   +1 more source

Growth inhibition of arable weeds by cerato‐platanin, a plant immune defense activator of fungal origin

Pest Management Science, EarlyView.
Plants possess an innate immune system able to detect pathogens' molecules such as cerato‐platanin (CP), a protein produced by the fungus Ceratocystis platani. This study shows that the application of this protein elicitor to weeds can be exploited as a novel herbicide mode of action.
Laura Scarabel, Andrea Milani, Sihem Fodil, Giorgio Carollo, Simone Luti, Ivan Baccelli   +5 more
wiley   +1 more source