Structural re-arrangement of depolymerized sodium alginate enriches peltate glandular trichomes and essential oil production of spearmint.

Structural re-arrangement of depolymerized sodium alginate enriches peltate glandular trichomes and essential oil production of spearmint. Int J Biol Macromol. 2017 Jul 25;: Authors: Sadiq Y, Khan MMA, Shabbir A, Ahmad B, Jaleel H, Uddin M, Varshney L Abstract Over the past decade, radiation-degraded polysaccharides have been used as regulators of growth and development of plants in several crop plants. In quest of the possible reasons of previously established growth-promotion activity of irradiated sodium alginate (ISA), structural parameters of irradiated and un-irradiated sodium alginate were analysed using Ultraviolet-visible spectroscopy (UV-vis) and Fourier Transform Infrared spectroscopic (FT-IR) studies to develop an understanding of structure-property relationship. Using foliar application, response to graded concentrations of ISA was tested in terms of yield and quality attributes of spearmint (Mentha spicata L.). Among different concentrations of ISA [0 (control), 40, 80, 120 and 160mgL(-1)], 80mgL(-1) proved to be the optimum foliar-spray treatment for most of the parameters studied including peltate glandular-trichomes density, which was increased from 20 to 44mm(-2). Measurements made at 150days after planting revealed that foliar application of ISA at 80mgL(-1) increased the content and yield of spearmint essential oil (EO) by 36.0 and 122.6%, respectively, in comparison to the control. Compared to the control, gas ch...
Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Tags: Int J Biol Macromol Source Type: research