Quick academic help
Don't let the stress of school get you down! Have your essay written by a professional writer before the deadline arrives.
Energy and the Human Journey: Where We Have Been; …
Canadian Journal of Fisheries and Aquatic The role of iron in phytoplankton photosynthesis The role of iron nutrition in photosynthesis and nitrogen
In bacteria, there are two general types of phosphotransferase system (PTS): the sugar PTS, mainly involved in carbohydrate transport, and the nitrogen PTS, which exerts regulatory functions. The nitrogen PTS consists of enzyme I (EINtr), histidine protein (NPr), and enzyme IIA (EIIANtr). The active phosphate moiety derived from phosphoenolpyruvate (PEP) is transferred through EINtr and NPr to EIIANtr (Fig. 1). In S. fredii, deletion mutants of EINtr or NPr were impaired in symbiotic performance on legume hosts, while the mutant without EIIANtr could still establish effective nitrogen-fixing nodules (Fig 1). However, the further deletion of EIIANtr in the mutants lacking EINtr or NPr could relieve the nitrogen starvation phenotype of legume plants inoculated with corresponding mutants (Fig 1). These findings suggest a negative regulation role of unphosphorylated EIIANtr in symbiosis.
Carbon Dioxide in the Ocean and Atmosphere - sea, …
The photosynthetic performance of indica rice (eight varieties) leaves at varying nitrogen supply levels in solution culture and possible role of ribulose-1, 5-bisphosphate carboxylase/oxygenase (Rubisco) in regulating photosynthesis were studied. In all the varieties studied, a linear correlation was observed between the oxygen evolution rate (OER) and Rubisco amounts less than 2g m-2. The OER tended to become saturated at Rubisco levels higher than 2 g m-2. Among the traditional and improved varieties, Pokkali, Baisbish and IR 442-2-58 showed a high OER/Rubisco ratio. Based on our regression fitting, the rice varieties were classified into high or low Rubisco efficiency group.
iron homeostasis in marine phytoplankton involved in photosynthesis and plays a central role in the diel regulation of iron uptake and recycling
NPC Quietnet: CQS - Leaf Blower Facts
Phytoplankton interactions with iron The role of iron nutrition in photosynthesis and nitrogen assimilation in Scenedesmus quadicauda Chlorophyceae J
The overuse of chemical nitrogen fertilizer in agriculture has caused serious environmental issues around the world. Legume crops play important roles in sustainable agriculture and are characterized by their ability of forming nitrogen-fixing nodules, in which rhizobia infect intracellularly and atmospheric nitrogen is reduced to ammonium in specialized rhizobial cells (bacteroids). In addition to those genes directly involved in nodulation and nitrogen fixation, to achieve effective nitrogen-fixing symbiosis, rhizobia need to fine-tune their background regulation network. For example, genetic evidences from this laboratory suggest that a conserved nitrogen phosphotransferase system is essential in Sinorhizobium fredii symbioses with soybean and pigeonpea.
Why choose our assistance?
As soon as we have completed your work, it will be proofread and given a thorough scan for plagiarism.
Our clients' personal information is kept confidential, so rest assured that no one will find out about our cooperation.
We write everything from scratch. You'll be sure to receive a plagiarism-free paper every time you place an order.
We will complete your paper on time, giving you total peace of mind with every assignment you entrust us with.
Want something changed in your paper? Request as many revisions as you want until you're completely satisfied with the outcome.
We're always here to help you solve any possible issue. Feel free to give us a call or write a message in chat.
How it works
You submit your order instructions
We assign an appropriate expert
The expert takes care of your task
We send it to you upon completion
Average quality score
"I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."
"Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."
"Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."
"Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."
"Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."
"Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."