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Abdul Hakim, Md.
- Variation in the Phytotoxic Activity of Tinospora tuberculata Extracts as Influenced by Solvent Type and Chemical Profile
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PDF Views:90
Authors
Farzad Aslani
1,
Abdul Shukor Juraimi
1,
Muhammad Saiful Ahmad-Hamdani
1,
Farahnaz Sadat Golestan Hashemi
2,
Md. Amirul Alam
3,
Dzolkhifli Omar
4,
Md. Kamal Uddin
5,
Md. Abdul Hakim
2
Affiliations
1 Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
2 Institute of Tropical Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
3 School of Agriculture Science and Biotechnology, Universiti Sultan Zainal Abidin, 21300, Terengganu, MY
4 Department of Plant Protection, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
5 Department of Land Management, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
1 Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
2 Institute of Tropical Agriculture, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
3 School of Agriculture Science and Biotechnology, Universiti Sultan Zainal Abidin, 21300, Terengganu, MY
4 Department of Plant Protection, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
5 Department of Land Management, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, MY
Source
Current Science, Vol 110, No 2 (2016), Pagination: 228-234Abstract
A study was conducted to evaluate the role of secondary metabolites on the allelopathic activity of methanol and water extracts obtained from aerial parts of Tinospora tuberculata on seed germination and the radicle and hypocotyl lengths of barnyardgrass. The higher suppressive effects were observed on germination and seedling growth of barnyardgrass, when the methanol extracts of T. tuberculata stem or leaf were applied in comparison to the water extracts. Ultra-fast liquid chromatography analysis confirmed that methanol extracts and leaf extracts contained higher number and amount of chemical compounds than did those of the water extracts and stem extracts respectively. Moreover, the concentrations of 11 identified compounds of the extracts and an equimolar mixture of the chemicals required for 50% growth inhibition on barnyardgrass germination, radicle and hypocotyle were determined. Trans-cinnamic acid and benzoic acid had the highest allelopathic activity, while chlorogenic acid and orientin had the lowest on the basis of the rank values. Benzoic acid was found in the highest concentration in the methanol leaf extract, while this compound was not identified in the water leaf extract. On the other hand, the predominant compound was orientin for stem extracts. These results suggest that these compounds may be involved in the allelopathy activity of T. tuberculata depending on their number, concentration, combination and inhibitory activity. T. tuberculata could be a potential source of natural inhibitor compounds employable for eco-friendly agriculture.Keywords
Allelopathy, Cluster Analysis, Phytotoxic Components, Tinospora tuberculata.Full Text
References
- Khan, M. L., Bhuyan, P. and Tripathi, R. S., Regeneration of Rudraksh (Elaeocarpus ganitrus Roxb.) - a threatened tree species: germination strategies. Int. J. Ecol. Environ. Sci., 2003, 29, 255-260.
- Irudhyaraj, D. F. and Ramasubbu, R., Ealeocarpus aristatus (Elaeocarpaceae): new from southern India. Tabrobanica, 2015, 7(2), 103-104.
- Murthi, S. K., Elaeocarpaceae. In F1ora of India (eds Sharma, B.D. and Sanjappa, M.), Botanical Survey of India, Calcutta, 1993, vol. 3, p. 529.
- Bhuyan, P., Khan, M. L. and Tripathi, R. S., Regeneration status and population structure of Rudraksh (Elaeocarpus ganitrus Roxb.) in relation to cultural disturbances in tropical wet evergreen forest of Arunachal Pradesh. Curr. Sci., 2002, 83, 1391- 1394.
- Mathew, K. M., The Flora of Palni Hills, South India, Part One: Polypetalae, The Rapinat Herbarium, Tiruchirapalli, 1999, pp. 145-146.
- Vijayan, A., Sudhakar, J. V. and Rajasekaran, C. S., Rediscovery of Elaeocarpus blascoi (Elaeocarpaceae) from Palni Hills of Western Ghats, Tamil Nadu. J. Econ. Taxon. Bot., 2011, 35, 618- 620.
- Irudhyaraj, D. F. and Ramasubbu, R., The lonely endemic Palni Hills Rudraksha tree Elaeocarpus blascoi Weibel (Magnoliopsida: Malvales: Elaeocarpaceae), Tamil Nadu, India. J. Threat. Taxa, 2014, 6(11), 6473-6476.
- The IUCN Red List of Threatened Species. Elaeocarpus blascoi. Version 2014.2; www.iucnredlist.org (downloaded on 10 October 2014).
- Tandon, R., Shivanna, K. R. and Mohanram, H. Y., Reproductive biology of Butea monosperma (Fabaceae). Ann. Bot., 2003, 92, 715-723.
- Schemske, D. W., Husband, B. C., Ruckelshaus, M. H., Goodwillie, C., Parker, L. M. and Bishop, J. G., Evaluating approaches to the conservation of rare and endangered plants. Ecology, 1994, 75, 584-606.
- Menges, E. S., Predicting the future of rare plant populations: demographic monitoring and modelling. Nat. Areas J., 1986, 6, 13-25.
- Navarro, L. and Guitian, J., The role of floral biology and breeding system on the reproductive success of the narrow endemic Petrocoptis viscosa Rothm. (Caryophyllaceae). Biol. Conserv., 2002, 103, 125-132.
- Richard, P. W., The Tropical Rain Forest, Cambridge University Press, Cambridge, 1996, 2nd Edn.
- Whitmore, T. C., An Introduction to Tropical Rain Forests, Clarendon Press, Oxford, UK, 1990.
- Soehartono, T. and Newton, C. A., Reproductive ecology of Aquilaria spp. in Indonesia. For. Ecol. Manage., 2001, 152, 59-71.
- Dafni, A., Kevan, P. G. and Husband, B. C., Practical Pollination Biology, Enviroquest Ltd., Cambridge, Ontario, Canada, 2005.
- Cruden, R. W., Pollen - ovule ratios: a conservative indicator of breeding system in flowering plants. Evolution, 1977, 31, 32- 46.
- Shivanna, K. R. and Rangaswamy, N. S., Pollen Biology - A Laboratory Manual, Narosa Publishing House, New Delhi, 1992.
- Kearns, C. A. and Inouye, D. W., Techniques for Pollination Biologists, University Press of Colorado, Niwot, USA, 1993.
- Sreekala, A. K., Pandurangan, A. G., Ramasubbu, R. and Kulloli, S. K., Reproductive biology of Impatiens coelotropis Fischer, a critically endangered balsam from the Southern Western Ghats. Curr. Sci., 2008, 95(3), 386-388.
- Devy, M. S. and Davidar, P., Pollination systems of trees in Kakachi, a mid-elevation wet evergreen forest in Western Ghats, India.Am. J. Bot., 2003, 90(4), 650-657.
- Abe, T., Threatened pollination systems in native flora of the Ogasavara (Bonin) Island. Ann. Bot., 2006, 98, 317-334.
- Reddi, C. S. and Reddi, N. S., Pollen production in some anemophilous angiosperms. Grana, 1986, 25, 55-61.
- Linskens, H. F., In Sexual Plant Reproduction (eds Cresti, M. and Tezzi, A.), Springer-Verlag, Berlin, 1992, pp. 203-218.
- Shivanna, K. R. and Johri, B. M., The Angiosperm Pollen: Structure and Function, Wiley Eastern Ltd, New Delhi, 1989, pp.235.
- Ramsey, M. and Vaughton, G., Inbreeding depression and pollinator availability in a partially self-fertile perennial herb Blandfordia grandiflora (Liliaceae). Oikos, 1996, 76, 465-474.