#nitrification

[igcse-bioworld]

The Nitrogen Cycle

[microscopiaiwm]

Nitrogen Fixation

BY- K. Sai Manogna (MSIWM014) Any natural or industrial process that allows free nitrogen (N2), a relatively inert gas abundant in the air, chemically combines with other components to form more reactive nitrogen compounds, such as ammonia, nitrates, or nitrites.  Nitrogen does not react with other elements under ordinary conditions. However, in all fertile soils, in all living organisms, in…

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[oupacademic]

Nitrification is an important part of the nitrogen cycle, where ammonia is converted into nitrites, and then nitrates – which are important for soil health and plant growth. Surprised with his discovery that C2H2 inhibits the nitrification of ammonia by Nitrosomonas europaea, Russell Hynes published his results in 1978. He reveals that this

“brought about a significant change in the direction of my research plans. I do not recall any disappointment with this result but rather naïve excitement and the thought that ‘I need to find out what is happening here’.”

He continues this important line of research into nitrification activity, searching for ways to reduce environmental pollution and mitigate climate change.

Image: Nitrogen Cycle by Environmental Protection Agency. CC BY-SA 3.0 via Wikimedia Commons.

[fictionalred]

Basilicum from the lab. Left is control group, right had nitrifying bacteria in the soil.

Feed your plants people

[biology-geology-beaches-india]

The Scientific Research Notes of S. Sunkavally, Printed Part, page. 137.

Dates unclear, but certainly between 2006-2012.

[biology-geology-beaches-india]

The Scientific Research Notes Of S. Sunkavally (years: 2002-2011).

1905-1906.

[written-nature]

'You're talking about nitrifying bacteria. There's denitrifying bacteria, too, you know. And that does leak above ground.'

"The Descent" - Jeff Long

[oaresearchpaper]

Maize is an important cereal crops however, its growth is retarded in response to environmental stimuli although the mechanism is not clarified. In this respect, plants (Zea mays L.) were grown in plastic pots and were given low temperature (4~8 oC) for 24h, 48h and 72h in cold chamber. In response to low temperature for 24h, the amount of protein was increased (34.72%) compared to control plants kept in ambient temperature. Similarly, the amount of protein was increased by 64.68% and 16.28% for 48h and 72h respectively however, the effects were pronounced at 48h of treatment. Low temperature was shown to enhance PPO activity by 291.52% and 79.79% respectively after 24h and 48h while the effects were assumed to be reduced after 72h. H2O2 plays the potential role on signaling of diverse molecules and is regulated by low temperature stress. In separate studies, plants were exposed to cold for 24h, 48h and 72h periods and the accumulation of H2O2 in the extract was determined. H2O2 was exaggerated by 19.59%, 15.54% and 62.16% respectively compared to respective controls. It is assumed that the above findings are coupled to nitrification and denitrification process. Therefore, we also examined the effect of low temperature on nitrate content in maize tissue extract. Nitrate accumulation in response to low temperature was increased by 23.41% and 25.30% respectively after 24h and 48h. Similarly, accumulation of nitrate after 72h was recorded as 21.97% when compared to respective controls. Nitrate accumulation and degradation are consecutive processes. The results show clearly that H2O2 induced biological processes in seedlings are coupled to internal nitrification and denitrification processes.