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Sharma P.,Kumaun University | Shah G.C.,Kumaun University | Sharma R.,University | Dhyani P.,Gb Pant Institute Of Himalayan Environment & Development
Natural Product Research | Year: 2015

The chemical composition of the essential oil obtained from aerial parts of Nepeta graciliflora was analysed, for the first time, by GC–FID and GC–MS. A total of 27 compounds were identified, constituting over 91.44% of oil composition. The oil was strongly characterised by sesquiterpenes (86.72%), with β-sesquiphellandrene (28.75%), caryophyllene oxide (12.15%), α-bisabolol (8.97%), α-bergamotene (8.51%), β-bisabolene (6.33%) and β-Caryophyllene (5.34%) as the main constituents. The in vitro activity of the essential oil was determined against four micro-organisms in comparison with chloramphenicol by the agar well diffusion and broth dilution method. The oil exhibited good activity against all tested organisms. © 2015 Taylor & Francis Source


Cottee-Jones H.E.W.,University of Oxford | Bajpai O.,Gb Pant Institute Of Himalayan Environment & Development | Chaudhary L.B.,Gb Pant Institute Of Himalayan Environment & Development | Whittaker R.J.,University of Oxford | Whittaker R.J.,Copenhagen University
Ambio | Year: 2015

Many of the world’s rural populations are dependent on the local provision of economically and medicinally important plant resources. However, increasing land-use intensity is depleting these resources, reducing human welfare, and thereby constraining development. Here we investigate a low cost strategy to manage the availability of valuable plant resources, facilitated by the use of isolated Ficus trees as restoration nuclei. We surveyed the plants growing under 207 isolated trees in Assam, India, and categorized them according to their local human-uses. We found that Ficus trees were associated with double the density of important high-grade timber, firewood, human food, livestock fodder, and medicinal plants compared to non-Ficus trees. Management practices were also important in determining the density of valuable plants, with grazing pressure and land-use intensity significantly affecting densities in most categories. Community management practices that conserve isolated Ficus trees, and restrict livestock grazing and high-intensity land-use in their vicinity, can promote plant growth and the provision of important local resources. © 2015, Royal Swedish Academy of Sciences. Source

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