Abstract
Epigenetic regulation of gene expression plays an important role in plant growth, development, and response to various environmental stresses. Due to increasing pollution and global warming, the environmental condition is getting worse for living organisms and plants. The growth and productivity of crop plants worldwide are severely affected by abiotic stress condition. In present study, we studied the effect of histone methyltransferase inhibitor chaetocin in tobacco plant under different abiotic stresses like cold, heat, drought and salinity. In our present study, we have found that photosynthesis is lowered in control plants by chaetocin and it is further lowered under abiotic stresses in the presence of chaetocin. Our study will help understand the epigenetic regulation of genes involved in photosynthesis and identify stress-responsive genes to understand the mechanism that reduces crop yield.
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