Shipping fertilizer to colonies on Mars could be quite a hassle – it would certainly be better if the colonists were able to grow crops using whatever's on hand.

It's a key finding in efforts to identify more sustainable alternatives to widely used fertilizers that contribute to water pollution. provides eligible reporters with free access to embargoed and breaking news releases.EurekAlert! News-Medical.Net provides this medical information service in accordance

The killed bacteria release DNA into the urine during further storage. Bacteria from urinary tract infections often harbor antibiotic resistance. Fertilizer produced in the lab will have a more consistent concentration. The researchers collected urine from over 100 individuals and kept it in sealed containers to undergo aging for 12 to 16 months. Over the last several years, the group has studied the removal of bacteria, viruses, and pharmaceuticals in urine to improve the safety of urine-derived fertilizers. Yet, there are bacteria remaining even after months that can both be cultured and are metabolically active.However, many of the bacteria that cause urinary tract infections are found to carry genes for antibiotic resistance. I did a little test, aging my urine for 1 week. The aging sealed up in a bottle does work for this. Today, municipal treatment systems don't totally remove these nutrients from wastewater before it's released into rivers and streams. L. Heckman speaks to News-Medical about a new pathway that could potentially treat Alzheimers disease.News-Medical spoke to Yourgene health on their efforts during the COVID-19 pandemic, and how they developed a diagnostic test for COVID-19.

It's these extracellular snippets of DNA that the researchers studied to see how quickly they would break down.Urine has been utilized as a crop fertilizer for thousands of years, but has been getting a closer look in recent years as a way to create a circular nutrient economy.


Please use one of the following formats to cite this article in your essay, paper or report: APA. During that period, ammonia levels in the urine increase, lowering acidity levels and killing most of the bacteria that the donors shed. Urine contains nitrogen, phosphorus and potassium--key nutrients that plants need to grow.

"There are two main reasons we think urine fertilizer is the way of the future," Wigginton said. 22.01.2020 - Recycled and aged human urine can be used as a fertilizer with low risks of transferring antibiotic resistant DNA to the environment, according to new research from the University of Michigan.

At the same time, manufacturing synthetic fertilizer is expensive and energy intensive. The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical. However, there are illnesses that could possibly still survive the high pH and ammonia rich situation so I do not advise using urine of some one who is sick for direct fertilizing of plants. In this new study, researchers have shown that the practice of "aging" collected urine in sealed containers over several months effectively deactivates 99% of antibiotic resistant genes that were present in bacteria in the urine. The mechanism postulated by the researchers is the microbial or biochemical breakdown of the plasmids at a rapid pace, to convert the circular DNA into a linear fragment, hindering its transformation efficiency severely.Wigginton sums up, “If bacteria in the collected urine are resistant to antibiotics and the bacteria die, as they do when they are stored in urine, the released DNA won't pose a risk of transferring resistance to bacteria in the environment when the fertilizer is applied.”However, the scientists point out that other bacterial models and other plasmids need to be tested to see how they react to urine aging and to confirm these findings. "Aging of urine fertilizer prevents transfer of antibiotic resistance".

Previous research has shown that antibiotic-resistant DNA can be found in urine, raising the question of whether fertilizers derived from it might carry over that resistance.The researchers collected urine from more than 100 men and women and stored it for 12 to 16 months.
Copyright © 2020 by the American Association for the Advancement of Science (AAAS)Copyright © 2020 by the American Association for the Advancement of Science (AAAS)

The resulting decrease in acidity leads to the death of the vast majority of bacteria present in donor urine. The aging should make enough of a difference to where the fertilizer might be more of a balanced soil boost than a grow juice fertilizer. The activity of the enzyme urease breaks down urea in fresh urine, leading to raised ammonia levels over this period. So far, our experimental results are quite promising," said Nancy Love, the Borchardt and Glysson Collegiate Professor and professor of civil and environmental engineering at U-M.The study is titled "Fate of Extracellular DNA in the Production of Fertilizers from Source-Separated Urine."

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