Indole in Tuberose (Polianthes tuberosa) Varieties

An Odorant Receptor from the Proboscis of the Cotton Bollworm Helicoverpa armigera (Lepidoptera: Noctuidae) Narrowly Tuned to Indole

“…Floral scents are necessary signals mediating the interaction between plants and pollinators [46]. Indole is one of the most predominant components contributing to the floral fragrance in jasmine and tuberose [47,48] and is famous for its fragrant smell in low concentrations but the fecal smell in high concentrations. A case of indole is served as a scent signal to attract pollinators is that the wild hawkmoths Hyles lineata innately prefer the natural flowers of Ipomopsis tenuituba plants, which are light-pink and naturally emit indole and presented a stronger indole signal during the activity peak of hawkmoth [49,50].…”

Phytochemical analysis of UV active and inactive bioactive compounds present in Polianthes tuberosa (Linn.) flower

“…GC-MS analysis of these extracts showed the presence of various components, and the details of phytochemicals are given in Table 1, and the GC-MS total ion chromatogram is shown in Figure 1a-. As evident from Table 1 the major phytochemicals identified in all three extracts are 1-tetradecene, methyl eugenol, 6H-indolo[3,2,1-de] [1,5] naphthyridin-6-one 1,2,3,3a,4,5-hexahydro-8-hydroxy-3-methyl, pentacosane, heptacosane, nonacosane, 1,30-triacontanediol and octacosanol. Further studies were also carried out to determine the number of phytochemicals in various parts of the tuberosa flower such as ovary, petal, and stamens using diethyl ether as a solvent.…”

“…Tuberosa (Polianthes tuberosa L.) is a luminous white, night-blooming tropical ornamental bulbous flowering plant grown in tropical conditions in the family of Agavaceae. Tuberosa is renowned for its pleasant fragrance used in perfumery for centuries [1]. There are around 12 species of tuberosa plants famous for their fragrance and medicinal properties.…”

Polianthes tuberosa

“…A glucofructosan (Srinivasan and Bhatia 1954 ), transfructosidase (Bhatia and Srinivasan 1954 ) and sucrose (Wali and Hasan 1965 ) were found in the plant. Chandravadana et al ( 1995 ) found indole in the absolute from various varieties and hybrids, varying in contents ranging from 0.36 to 2.15 %. Several steroid sapogenins, such as hecogenin, 9-dehydroxyhecogenin and tigogenin (Zhou et al 1965 ), as well as glycosides, 29-hydroxystigmast-5-en-3β-yl β-D -glucoside (Rashid et al 1999 ), (22 S )-2β,3β,22-trihydroxycholest-5-en-16β-yl β-D -glucoside (Firdous et al 1999b ) and diribofuranosylethyleneglycol (Firdous et al 1999a ) and spirostanol pentaglycosides (Mimaki et al 2002 ) were identifi ed from the underground parts of P. tuberosa .…”