The Negative Impact of Abiotic Pressures on Photosynthesis

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About this sample

About this sample


Words: 580 |

Page: 1|

3 min read

Published: Feb 12, 2019

Words: 580|Page: 1|3 min read

Published: Feb 12, 2019

Plant cells are powered by chemical energy found primarily in carbohydrate molecules, synthesized by a single process called photosynthesis. Certain organisms use photosynthesis to turn daylight into chemical energy then make carbohydrate molecules. When a plant breaks down food, the power that holds these molecules together is released. The cells subsequently use the energy to carry out tasks such as oxygenation. The majority of the energy needed by earth's living creatures comes from photosynthesis. Oxygen is to be released into the atmosphere as a by-product of photosynthesis. Hence, humans and the animal kingdom rely almost totally on photosynthesis-producing organisms.

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Since their beginnings, land plants have had to live in a harsh environment. Intense temperature, insufficient or excessive water, increased salinity are only a few of the physical or chemical factors harmful to them. Agriculture and the environment are both under great jeopardy due to these challenges.

Changes in metabolic processes, such as decreased nutritional absorption and glucose metabolism, are induced by the harmful impacts of various stress combinations combining high temperatures and their implications for photosynthetic performance. The whole plant's physiological reactions are altered due to protective metabolic adaptations. Producing metabolites by plants is thought to be a plant's adaptive capacity for coping with stressful constraints in the environment, which may include the production of complex chemical types and interactions in structural and functional stabilization processes and pathways. For example, the movement of stomatal cells, which govern gas exchange, is influenced by the sun's rays. This has an impact on CO2 uptake as well as leaf transpirational cooling.

Heat is a significant source of stress. The xylem flow and transpiration of water impact nutrient intake and distribution. Light and nutrients interact. Inorganic nitrogen and sulfur assimilation and carbonnitrogen signaling functions throughout the plant are all influenced by CO2 assimilation and nutrients. For plants to adapt to such harsh conditions, phytohormones play an essential role in assisting them. They are great candidates for mediating defense responses because of their complex signaling networks and propensity to crosstalk. Functional differences between plant genotypes and species growing in different environments are based on changes in developmental processes. Because other organs and tissues in a plant are affected by various environmental stresses, a plant's molecular, cellular, and morphological responses to stress change from one tissue to the next and throughout its life cycle. The ability of a plant of a given genotype to dynamically adjust these developmental processes in response to the environment, and the range of developmental processes across genotypes, is the key to plant success in natural and agricultural contexts.

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Both traditional and modern breeding applications for stress tolerance will benefit from a better understanding of how plants respond to abiotic stress. Over time, agriculturists and botanists have found solutions to breed plants even if exposed to an unfavorable environment. Plant breeding has proven helpful in determining stress-tolerant genetic features in diverse crops and transferring those qualities to cultivars that perform well in the field. Identifying the genes involved in diverse systems of heat tolerance and their modulation using various transgenic techniques has also made significant progress. Sairam and Tyagi (2004) found that genetic alterations to increase SOD expression in response to heat stress were effective. Global warming will not only ruin the environment but also harm our future. As citizens of the planet earth, we should alleviate climate change by doing little things like recycling and lessening the use of carbon. At the end of the day, the earth is our only home.

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Photosynthesis: the Necessary Process in the World. (2022, December 11). GradesFixer. Retrieved April 13, 2024, from
“Photosynthesis: the Necessary Process in the World.” GradesFixer, 11 Dec. 2022,
Photosynthesis: the Necessary Process in the World. [online]. Available at: <> [Accessed 13 Apr. 2024].
Photosynthesis: the Necessary Process in the World [Internet]. GradesFixer. 2022 Dec 11 [cited 2024 Apr 13]. Available from:
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