Results 31 to 40 of about 3,652,527 (299)

The PII-NAGK-PipX-NtcA Regulatory Axis of Cyanobacteria: A Tale of Changing Partners, Allosteric Effectors and Non-covalent Interactions

open access: yesFrontiers in Molecular Biosciences, 2018
PII, a homotrimeric very ancient and highly widespread (bacteria, archaea, plants) key sensor-transducer protein, conveys signals of abundance or poorness of carbon, energy and usable nitrogen, converting these signals into changes in the activities of ...
Alicia Forcada-Nadal   +8 more
doaj   +1 more source

Evolutionary rewiring of bacterial regulatory networks

open access: yesMicrobial Cell, 2015
Bacteria have evolved complex regulatory networks that enable integration of multiple intracellular and extracellular signals to coordinate responses to environmental changes.
Tiffany B. Taylor   +7 more
doaj   +1 more source

Photosynthetic modulation during the diurnal cycle in a unicellular diazotrophic cyanobacterium grown under nitrogen-replete and nitrogen-fixing conditions

open access: yesScientific Reports, 2022
Cyanobacteria are the only oxygenic photosynthetic organisms that can fix nitrogen. In diazotrophic cyanobacteria, the regulation of photosynthesis during the diurnal cycle is hypothesized to be linked with nitrogen fixation and involve the D1 protein ...
Michelle Liberton   +2 more
doaj   +1 more source

Interactive regulation of nitrogen and aluminum in rice [PDF]

open access: yesPlant Signaling & Behavior, 2013
Despite many studies on the high aluminum (Al) tolerance of rice (Oryza sativa), its exact mechanisms remain largely unknown. It is also unclear why Al improves growth of some plants. Our research on interactions between nitrogen (N) and Al may help to understand these phenomena. Previously, we found that ammonium-supplemented rice was more Al tolerant
Xue Qiang, Zhao, Ren Fang, Shen
openaire   +2 more sources

Genetics of Nitrogen Regulation in Methanococcus maripaludis [PDF]

open access: yesGenetics, 1999
Abstract We have used genetic methods in Methanococcus maripaludis to study nitrogen metabolism and its regulation. We present evidence for a “nitrogen regulon” in Methanococcus and Methanobacterium species containing genes of nitrogen metabolism that are regulated coordinately at the transcriptional level via a common repressor binding ...
P S, Kessler, J A, Leigh
openaire   +2 more sources

Nitrogen metabolism in Corynebacterium glutamicum ATCC 13032 [PDF]

open access: yes, 2002
Bibliography: leaves 125-146.Corynebacterium glutamicum is extensively used for the commercial production of a host of amino acids including lysine, glutamate, and threonine.
Schulz, Anton A
core   +1 more source

Nitrogen regulation of arginase in Neurospora crassa [PDF]

open access: yesJournal of Bacteriology, 1977
The final products of the arginine catabolism that can be utilized as a nitrogen source in Neurospora crassa are ammonium, glutamic acid, and glutamine. The effect of these compounds on arginase induction by arginine was studied. In wild-type strain 74-A, induction by arginine was almost completely repressed by glutamic acid plus ammonium, whereas ...
G, Vaca, J, Mora
openaire   +2 more sources

Electricity network regulation in the EU : The challenges ahead‎ for transmission and distribution

open access: yes, 2018
The UK model of incentive regulation of power grids was at one time the most advanced, and elements of it were adopted throughout the EU. This model worked well, particularly in the context of limited investment and innovation, a single and strong ...
Jean-Michel Glachant   +6 more
core   +2 more sources

Regulation of nitrogen fixation in Azospirillum brasilense [PDF]

open access: yesFEMS Microbiology Letters, 2006
The regulation of nitrogen fixation in Azospirillum brasilense is very complicated, and it responds to exogenous fixed nitrogen or a change of oxygen concentration. This regulation occurs at both transcriptional and posttranslational levels. Unlike regulation seen in Klebsiella pneumoniae, transcription of nifA does not require NTRB/NTRC in A ...
Y, Zhang   +3 more
openaire   +2 more sources

A Comparative Assessment of Measures of Leaf Nitrogen in Rice Using Two Leaf-Clip Meters

open access: yesSensors, 2019
Accurate estimation and monitoring of crop nitrogen can assist in timely diagnosis and facilitate necessary technical support for fertilizer management.
Ke Zhang   +7 more
doaj   +1 more source

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