31Dec 2016

EFFECT OF DIFFERENT ABIOTIC STRESS ON ESSENTIAL OIL YIELD FROM AERIAL PART OF CYMBOPOGON FLEXUOSUS (NEES EX STEUD) WATS.

  • Department of Microbiology and Biotechnology Bangalore University, Jnana Bharathi campus, Bangalore-560056, Karnataka, India.
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In nature, the plants are exposed to variety of stress which is broadly categorized as biotic and abiotic stress. During the present study, the effect of abiotic stress such as Gibberellic acid, Zinc nitrate and supplemental Ultraviolet-B (sUV-B) radiation on essential oil yield and composition has been studied in the aerial parts of Cymbopogon flexuosus (Nees ex Steud) Wats. The plants were exposed to GA and ZN radiation (2mM, 3mM and 4mM) and sUV-B radiation at different intervals of time (0.5h, 1.5h and 3h) and the effect of sUV-B stress for enhanced essential oil yield has been investigated. The oils obtained from different stress treated plants were analyzed using Gas Chromatography-Mass Spectroscopy (GC-MS). The oils showed high citral content (isomer of geranial and neral) in sUV-B treated plants (sUV-B?1.5h), the compound extensively used in perfumery and pharmaceutical industry. A considerable increase in total oil content and citral percentage was seen in sUV-B treated plants when compared to other stress treatments and Control plants. The abiotic stress altering molecular, biochemical, physiological and morphological levels result in variation in essential oil production.

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[Vinutha M, Suchetha M. and K. J. Thara Saraswathi. (2016); EFFECT OF DIFFERENT ABIOTIC STRESS ON ESSENTIAL OIL YIELD FROM AERIAL PART OF CYMBOPOGON FLEXUOSUS (NEES EX STEUD) WATS. Int. J. of Adv. Res. 4 (Dec). 1490-1504] (ISSN 2320-5407). www.journalijar.com

K.J. Thara Saraswathi

DOI:

Article DOI: 10.21474/IJAR01/2549      
DOI URL: http://dx.doi.org/10.21474/IJAR01/2549

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