Physical, Molecular gene expression and Biochemical changes occurring in a plant during elevated atmospheric CO2

Abstract

Carbon dioxide being a harmful gas to mankind its rise in atmosphere affecting the plants in physical, molecular process that modulate photosynthetic gene expression and biochemical processes that changes in CO2 concentration to the production of metabolite signal. Increasing temperature and elevated carbon dioxide were the main reason for change in the climatic factors that affect plant strength and flowering allied events. Reduction in ribulose-1, 5-bisphosphate carboxylase/oxygenase (Rubisco) protein results from species dependent variation in differential use of molecular processes. Many studies indicates that hexokinase functioning as a hexose flux sensor that ultimately affecting transcription products were the key for repression in photosynthetic gene expression. Hexoses are produced as signals primarily by sucrose cycling and secondarily by starch hydrolysis. Finally, this review gives research knowledge over the changes in physical, molecular gene expression and biochemical processes during elevated carbon dioxide levels.