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Abiotic stress is the negative impact of non-living factors on the living organisms in a specific environment. [1] The non-living variable must influence the environment beyond its normal range of variation to adversely affect the population performance or individual physiology of the organism in a significant way.
Genetically modified plants can be implemented to slow down the effects of the abiotic stressors. This allows more crops to be grown on a smaller amount of land. Less need for farmland allows some of it to be set aside for natural wildlife habitat. Abiotic stress only poses a problem to people or the environment if they are not prepared for it.
Facilitation has a greater effect on plant interactions under environmental stress than competition. [9] Another example is the positive effects of facilitation on desert plants that face the effects of rising aridification. [10] Shrubs are known to provide favourable abiotic conditions in these dry regions. [11]
Plant stress research looks at the response of plants to limitations and excesses of the main abiotic factors (light, temperature, water and nutrients), and of other stress factors that are important in particular situations (e.g. pests, pathogens, or pollutants). Plant stress measurement usually focuses on taking measurements from living plants.
Reactive oxygen species (ROS) are key signalling molecules produced in response to biotic and abiotic stress cross tolerance. ROS are produced in response to biotic stresses during the oxidative burst. [20] Dual stress imposed by ozone (O3) and pathogen affects tolerance of crop and leads to altered host pathogen interaction (Fuhrer, 2003).
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Abiotic stresses (such as drought) induce the expression of the following transcription factors. They bind to cis-elements, resulting in a change in stress response and tolerance. In response to drought conditions, there is an alteration of gene expression, induced by or activated by transcription factors (TFs).
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