Heat Stress in Brassica napus L.: Toxic Effects and Adaptive Responses

I n response to adverse conditions like such changes in ambient temperature, plants initiate a cascade of responses that affect cellular processes at the transcriptome, epigenome, proteome, and metabolome levels.In the end, these changes control various adaptive methods that plants use to survive in harsh environments.These complex relationships involve stress signaling-induced crosstalk between different parts of the cell, which in turn activates genes that respond to stress and causes phenotypic changes to adapt to harmful environments.According to the Holechek et al. (2022) projects that oil production will significantly increase by 2050 due to factors such as the growing need for edible oil and renewable energy sources, as well as the everincreasing world population.This demand can be met by the cultivation of oil-producing crops such as rapeseed, which is a prominent member of the Brassicaceae family and is a hybrid of Brassica rapa Abstract | Heat stress, a major environmental concern, greatly affects global oilseed output.This phenomenon is particularly applicable to crops such as Brassica napus L. (B.napus L.).This article offers comprehensive information on the ability of B. napus L. to mitigate heat stress.To devise efficient strategies for mitigating heat stress, it is crucial to comprehend its mechanisms.This article delves into the effects of heat stress on the growth and productivity of B. napus L. specifically looking at how the plant responds physio-biochemically, including through stomatal conductance, photosynthesis, water use efficiency, and nutrient uptake.We address heat stress as an independent component that impacts B. napus L. productivity and presents significant obstacles for production, even though it is generally linked to water constraint.It has a major effect on yield and creates a lot of problems for environmentally friendly manufacturing.The detrimental impacts of heat stress on B. napus L. plants and their reactions to stress resilience are discussed in this extensive literature review.Researchers, agronomists, and legislators might use these findings to improve B. napus L. resilience and guarantee food security in a climate-changed world.