Vol. 11, Issue 5 (2022)

Author(s):
SM Soundarya, M Ganga, D Malarvizhi, K Iyanar, R Gnanam and M Jawaharlal

Abstract:
Jasminum grandiflorum Cv. White Pitchi, is a region-specific cultivar of jasmine popularly cultivated in the southern districts of Tamil Nadu. Mutant genotypes with variation for plant type and flower bud were developed by inducing mutation through physical and chemical mutagens. The flowers of mutant genotypes WPM 2 and WPM 25 and non mutated White Pitchi genotypes were subjected to GCMS analysis for identifying the metabolites and its respective biosynthetic pathways. The metabolite profiling resulted in the identification of various compounds as depicted in the heat map of the metabolites. Six metabolites viz.,alpha-Pinene, Benzene, Hexanal, O-Cymene, Tetrapropylammonium, and gamma-Terpinene, in all the three genotypes. Three compounds alpha-Ocimene, Ethyl Acetate and Caryophyllene were found to be present only in the white pitchi mutant genotypes WPM 2 and WPM 25 whereas seven metabolites viz., 1-(p-Tolyl)butan-1-one, 1-Butanol, 2-methyl-, (S)-, alpha-Phellandrene, Dimethyl trisulfide, D-Limonene, Phenylethyl Alcohol, Acetic acid and butyl ester were found to be present in white pitchi and its mutant genotype WPM 2 and one metabolite Bicalutamide, that is grouped under Benzonitriles of Glucuronidation pathway is present in the white pitchi and WPM 25 mutant genotype.