Sugarcane Lab Report

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Sugarcane is the most important cash crop of poaceae family that accumulates high level of sucrose content in its stalk. A complex mechanism is present for the accumulation of sucrose and its control. Sucrose can accumulate into the stalk up to 600 mg.g-1 even in an unselected clone of sugarcane. The main objective of sugarcane improvement is to increase the sucrose content in the stalk. Sugarcane is propagated by cuttings known as sets that contain two or three lateral buds, which will develop into new plant. This constitutes complex phenomenon that occur by changes in the accumulation of phytohormones and other physiological aspects. Abscisic acid (ABA) and methyl-jasmonate (MeJA) are two main molecules, which have influence on plant development and stress response. Growth and development of organism depend upon regulation of gene expression. These signaling molecules regulate the gene expression during which many transcriptional factors are involved. Basic leucine zipper protein (bZIPs) is also a type of transcriptional factor involved in developmental process and response to stress. bZIP genes have specific structure that allows them to control gene activity. Each gene has leucine zipper region so called as bZIP.…show more content…
Six bZIP genes are involved in the development process. ABA and MeJA regulate the expression of eight sugarcane bZIP gene. ABA-responsive elements are cis-acting elements are known as ABREs present in the promoter region. ABRE elements of these genes are targets for many plant bZIP genes. These transcriptional factors are induced by ABA and stress treatment. AB15 regulate the expression of LEA genes that are expressed during the seed development and also by ABA. Functions of several jasmonate are still not

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