Results 41 to 50 of about 1,396,568 (258)
The Dynamic of Nitrogen Uptake from Different Sources by Pea (Pisum sativum L.)
Nitrogen uptake from various sources by plants capable of biological reduction of N2 in symbiotic systems with root nodule bacteria is influenced by many factors.
Andrzej Wysokinski, Izabela Lozak
doaj +1 more source
Structural and biochemical analysis of a B12 superbinder
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Nitrogen(N)is a mineral nutrient with the highest demand for plants, and it is also a vital abiotic factor that limits plant yield and quality. Plants use inorganic and organic N sources from soil, and N form is a key factor affecting the active ...
JIAN Shaofen1,2,3, LIN Yang1,2,3, WAN Si1,2,3, ZHONG Chu1,2,3*, LIU Han1,2,3
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Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
Increasing nitrogen (N) deposition may alter soil N status and dynamics, as well as the emission of soil greenhouse gases (GHGs). Most of the experimental N manipulations performed so far have neglected the interaction with the canopy, which influences ...
Luca Da Ros +8 more
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Metastatic niche shaped by host factors influences disseminated cancer cell fate
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward +2 more
wiley +1 more source
Improving Citrus Nitrogen Uptake Efficiency: Understanding Citrus Nitrogen Requirements
This publication is one in a series of three looking at improved citrus nutrition by increasing the efficiency of fertilizer use. The objectives of this document are: 1.
Kelly T. Morgan, Edward A. Hanlon
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Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley +1 more source
Nitrogen Uptake by Sweet Corn1
Abstract N-demand periods and the form and quantity of N absorbed during the growth cycle of sweet corn ( Zea Mays L.) was determined for ‘Silver Queen’ grown in solution culture with a N ratio of 50% NO 3– 50% NH 4
Harry A. Mills, William S. McElhannon
openaire +1 more source
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata +13 more
wiley +1 more source

