A step-by-step protocol for formaldehyde-assisted isolation of regulatory elements from Arabidopsis thaliana Deletion of 93 bp Far upstream Fragment of Rice Cytosolic Fructose 1, 6 Bisphosphatase Promoter Completely Alter Its Expression Pattern Characterization of the Tomato Prosystemin Promoter: Organ-Specific Expression, Hormone Specificity and Methyl Jasmonate Responsiveness by Deletion Analysis in Transgenic Tobacco Plants