Effect of heavy metal stress on spore germination of Pteris confusa T. G. Walker and Pteris argyraea T. Moore
Автор: Irudayaraj V., Johnson M., Priyakumari A.S., Janani Prabha A.
Журнал: Журнал стресс-физиологии и биохимии @jspb
Статья в выпуске: 4 т.7, 2011 года.
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Background: Plants have both and adaptive mechanisms for coping with the elevated metal concentrations and they are utilized to clean the polluted soil and water. Unlike angiosperms hyperaccumulators, fern hyperaccumulators are equipped with inherent biological characteristics that could be exploited in the phytoremediation strategies aimed at decontaminating polluted sites. spores can be successfully used to screen the hyperaccumualting ferns and also to test the toxicity of the metal contaminated samples. Purpose of the Study: In the present study, a preliminary attempt was made to compare the tolerance capacity of the spores of two ferns; Pteris confusa T. G. Walker and Pteris argyraea T. Moore against the heavy metal zinc (Zinc sulphate). Spores of the two ferns were cultured in Knop's liquid medium with various concentrations of zinc sulphate (0-200ppm). Results: In the case of P. confusa normal germination was observed in control, 120 ppm and 140 ppm and the germination of spores were failed in 160, 180 and 200 ppm of zinc supplemented cultures. In contrary, P. argyraea showed maximum percentage of spore germination in 140 ppm zinc supplemented cultures and the control and 120 ppm zinc sulphate supplemented cultures were failed to show the germination. The germination percentage and growth rate was decreased in high concentration of zinc sulphate. are showed more tolerance to heavy metal than protonema of P. argyraea. Conclusion: Difference in response of spores to the heavy metal zinc may be due the difference in the hyper-accumulating capacity of the ferns.
Zinc sulphate, heavy metal, spore, stress
Короткий адрес: https://sciup.org/14323552
IDR: 14323552
Список литературы Effect of heavy metal stress on spore germination of Pteris confusa T. G. Walker and Pteris argyraea T. Moore
- Bondada, B. R. and Lena Qiying, M.A. (2003) Tolerance of heavy metals in vascular Plants: Arsenic hyperaccumulation by chinese, brake fern (Pteris vittata L.) Chandra, S. and Srivastava M. (eds.), Pteridology in The New Millennium, Kluwer Academic Publishers, The Netherlands. pp. 397-420.
- Francis, P.C. and Petersen, L. (1989) Assessment of Toxicity of heavy metal ion combinations on spore germination and protonemal growth of Polytrichum commune. Bryologist, 92(1), 60-67.
- Gupta, M. and Devi, S. (2005) Chronic toxicity of cadmium in Pteris vittata, a roadside fern. J. Plant Res., 118 (2), 137-145.
- Jules, E.S. and Shaw, A.J. (1994) Adaptation to metal contaminated soils in population of the moss Cetatodon purpureus: vegetative growth and reproductive expression. Amer. J. Bot. 81, 791-797.
- Kamachi, H., Ippei, K., Hideo, T., Sawa Y., Ichirou, K., Honma, Y., Wada, N., Kawabata, T., Matsuda, K., Ikeno S., Noguh M. and Inoue, H. (2005) Lead tolerance and accumulation in the gametophytes of the fern Athyrium yokoscense. Journal of Plant Research 118(2), 137-145.
- Manickam, V.S. and Irudayaraj, V. (1988) of ferns of the Western Ghats, South India. Today & Tomorrows Printers and Publishers, New Delhi.
- Manickam, V.S. and Irudayaraj, V. (1992) Pteridophyte Flora of the Western Ghats, South India. B I Publications, Pvt. Ltd, New Delhi.
- Mehra, P. N. and Sulelyan, D. S. (1969) In vitro studies on apogamy, apospory, and controlled differentiation of rhizome segments of the fern Ampelopteris prolifera (Retz.) Copel. J. Linn. Soc. Lond. Bot. 62, 431-443.
- Mehrah, A.A. (1994) Integrated tolerance mechanisms: Constitutive and adaptive plant responses to elevated metal concentrations in the environment. Plant Cell Env., 17, 989-993.
- Nayar, B.K. and Kaur, S. (1970). Gametophytes of homosporous ferns. Bot. Rev. 37, 295-396.
- Salmi, M.L., Bushart, T.J., Stout, S.C. and Roux, S.J. (2005) Profile and analysis of gene expression changes during the early development in germiantiing spores of Cetatopteris richardii. Plant Physiol. 138(3), 1734-1745.
- Von Aderkas, P. (1984) Promotion of Apogamy in Matteuccia struthipteris, the ostrich fern. Amer. Fern J. 74(1), 1-6.
- Whittier, D.P. and Steeves, T.A. (1960) The induction of apogamy in the bracken fern. Canad. J. Bot. 38, 925-930.
- Whittier, D.P. (1965) Obligate apogamy in Cheilanthes tomentosa and C. alabamensis, Bot. Gaz. 126, 275-281.
- Woolhouse, H.W. (1983) Toxicity and tolerance in the responses of plant to metals. In: Lange, O.L., Nobel, P.S., Osmond, C.B. and Ziegler, H. (eds.), Encyclopedia of Plant physiology, New Ser. Vol. 12c, Physiological plant ecology III, Response to the chemical and biological environment. Springer-Verlag, Berlin. pp. 245-300.
- Yoshihara, T., Tsunokawa, K., Miyano, Y., Arashima, Y., Hodoshima, H., Shoji, K., Shimada, H. and Goto, F. (2004) Induction of callus from a metal hypertolerant fern, Athyrium yokoscense and evaluation of its cadmium tolerance and accumulation capacity. Plant Physiol., 136(2), 3198-3208.
