write a 2-3 page paper summary with hypothesis mainly focused on supplement figure 6. (rubrics and guideline given)

Running head: OSA1 OVEREXPRESSION TECHNIQUE 1

OSA1 OVEREXPRESSION TECHNIQUE 5

OSA1 Overexpression Technique

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OSA1 Overexpression Technique

Background Information

The study on OSA1 Overexpression presents information on the supplement's levels that promote the uptake of nutrients such as Nitrogen and carbon in rice. The research determines the supplement's absorption rates in the roots of rice plant under different conditions, including different concentrations of NH 4 +. The study used seedlings incubated with NH 4 + to help determine the uptake rate in plants before hydroponically growing them in a greenhouse for four weeks (Zhang et al., 2021). The study confirms that both nitrogen and carbon nutrients are critical elements for plants' growth and achieving high yields. Thus reducing the need for fertilisation requires an improved use of Nitrogen and Caborn.

A Review of the Technique

Overexpression as a biotechnology technique ensures the suppression of genes at high levels to produce large quantities of protein for a plant. The technique is useful in producing critical proteins needed on a large scale and adds the target elements through artificial construction, allowing genes to be translated efficiently under controlled conditions. It is difficult for crops like rice to achieve high yields through a green revolution due to its exclusive dependence on limited yield variability (Zhang et al., 2021). As a result, implementing overexpression technique makes it easier to increase the required nutrients' absorption level, leading to increased production.

The technique is believed to have the potential of improving heat tolerance and water-retaining capacity of rice. Growing rice plants in a drought-prone area with high heat stress negatively influences the crop's growth and yield. Besides considering rice plants that do well in the adverse conditions, it is a good practice to supply more essential nutrients that provide the needed elements to ensure proper growth and increased production.

Explanation of the Results

From the study, it is noted that Overexpression of OSA1 increased the activities of Pm H+ ATPase in rice plants. The technique promoted uptake and assimilation of NH­4+ in the plants' roots and increased stomatal opening and photosynthetic rate in the leaves. The genetic evidence of the technique showed that modulation of OSA1 regulated the absorption rate of NH4+ by the roots of the plants across a different range of the nutrient concentration (Zhang et al., 2021). The search unveils a close relationship between PMH+ -ATPase and NH4 + as a means of nutrients transportation within the root cells. The relationship enables the technique to enhance the take-up NH+ from the soil effectively to the roots.

Additionally, the research found that the OSA1 overexpression technique enhances NH4 + assimilation through genes like glutamine synthetase and glutamate synthase. The process of assimilation generated H+, which becomes toxic to the plants when in excess. Glutamine synthetase resulted in higher uptake of the nutrients even though the study indicates that it leads to poor growth hence low yields in paddy rice (Zhang et al., 2021). The researchers observed that OSA1 enhanced stomatal conductance and photosynthetic level due to the stomatal aperture's opening. The study results showed a consistent trend with the fact that genes that relate to photosynthesis are up-regulated by Overexpression of OSA1 and are down-regulated by knockout of the technique.

Conclusion of the Study

Nitrogen and carbon are some of the crucial elements that enhance the growth and yield of a crop. Improving the concentration and utilization of the elements ensures that plants such as rice grow as required to reduce fertilization. The use of Overexpression of OSA1in rice leads to an increase in yields by 33% with an increase of about 46% in the use efficiency of the nutrients. The study suggests that improving the utilization of both Nitrogen and carbon would require manipulation of PM H+ -ATPase to ensure sustainable agricultural activities.

Reference

Zhang, M., Wang, Y., Chen, X., Xu, F., Ding, M., Ye, W., ... & Zhu, Y. (2021). Plasma membrane H+-ATPase overexpression increases rice yield via simultaneous enhancement of nutrient uptake and photosynthesis. Nature Communications, 12(1), 1-12.

Micronutrients, including iron, zinc, manganese, and copper, are required in very small amounts. Micronutrients are often required as cofactors for enzyme activity.