Comparative effects of Cadmium and Lead on the growth and metabolism of Cow-pea or Lobia (Vigna unguiculata L.)

Authors

  • Dr. Pratibha Srivastava  Assistant Professor in Botany, Govt. Raza P. G. College, Rampur, India

Keywords:

Cadmium (Cd), Lead (Pb), Vigna Unguiculata, Heavy Metal Toxicity, Cowpea, Plant Metabolism, Growth Parameters, Morphological Changes.

Abstract

Because of their persistence and toxic nature, heavy metal pollution is aptly referred to as "devils in disguise" and currently poses a serious threat to global ecosystems. Cadmium (Cd) and lead (Pb) are two of the heavy metals that are most concerning because of their high atomic weight, extended environmental persistence, and capacity to bioaccumulate in living things. The present study investigates and compares the individual effects of Cd and Pb on growth and metabolism of Vigna unguiculata, commonly known as cowpea or lobia, a widely cultivated leguminous crop in India. Field experiments were conducted to assess the impact of varying concentrations of these metals from seed germination to maturity. The results indicate significant differences in the plant's response to Cd and Pb exposure, with Cd exerting more pronounced inhibitory effects on metabolic and physiological functions. The study highlights the need for strategic mitigation and soil management practices to safeguard agricultural productivity in metal-contaminated regions.

References

  1. AI-Rumaih, Muna, M., Rushdy, S. S. and Warsy, A. S., 2001. Effect of cadmium chloride on seed germination and growth characteristics of cowpea (Vigna unguiculata L.) Plants in the presence and absence of gibberellic acid. Saudi. J .Biol. Sci., 8: 41- 50.
  2. Azad, S. H. M., 2011. Toxic effects of lead on growth and some biochemical and ionic parameters of sunflower (Helianthus annuus L.) seedlings. Cur. Res. J. Bio. Sci., 3: 398-403.
  3. Chen, X., Wang, J., Shi, Y., Zhao, M. Q. and Chi, G. Y., 2011. Effects of cadmium on growth and photosynthetic activities in pakchoi and mustard. Botanical Studies., 52: 41-46.
  4. Das, P. S., Samantaray, G. R. and Rout, G., 1997. Studies on cadmium toxicity in plants: a review. Environ. Poll., 98: 29-36.
  5. Domínguez, M. T., Marañón, T. A., Murillo, J. M. A. and Redondo- Gómez, S., 2011. Response of Holm oak (Quercus ilex sub sp. ballota) and mastic shrub (Pistacia lentiscus L.) seedlings to high concentrations of Cd and Tl in the rhizosphere, Chemosphere, 83: 1166–1174.
  6. Domínguez, M. T., Marañón, T. A., Murillo, J. M. A. and Redondo- Gómez, S., 2011. Response of Holm oak (Quercus ilex sub sp. ballota) and mastic shrub (Pistacia lentiscus L.) seedlings to high concentrations of Cd and Tl in the rhizosphere, Chemosphere, 83: 1166–1174.
  7. Effect of cadmium on the growth of tomato. Bio and Med., 3: 187-190.
  8. Hamid, N., Bukhari, N. and Jawaid, F., 2010. Physiological responses of Phaseolus vulgaris to different lead concentrations. Pak. J. Bot., 42: 239- 247.
  9. Heidari, M. and Sarani, S., 2011. Effects of lead and calcium on seed germination, seedling growthand antioxidant enzymes activities of mustard (Sinapis arvens L.) J. Agri. Bio. sci., 6: 44- 47.
  10. Heidari, M. and Sarani, S., 2011. Effects of lead and calcium on seed germination, seedling growthand antioxidant enzymes activities of mustard (Sinapis arvens L.) J. Agri. Bio. sci., 6: 44- 47.
  11. Identification of rice varieties with high tolerance or sensitivity to lead and characterization of the mechanism of tolerance. Plant Physiol., 124: 1019-1026.
  12. Jiang, N., Luo, X., Zengi, J., Yang, Z., Zhengi, L. Y. and Wang, S., 2010. Lead toxicity induced growth and antioxidant responses in Luffa cylindrica seedlings. Int. J. Agri. Bio., 12: 205–210.
  13. Kabir, M., Iqbal, M. Z., Shafiq, M. and Farooqi, Z. R., 2008. Reduction in germination and seedling growth of Thespesia populnea L. caused by lead and cadmium treatments. Pak. J. Bot., 40: 2419-2426.
  14. Kabir, M., Iqbal, M. Z., Shafiq, M. and Farooqi, Z. R., 2010. Effects of lead on seedling growth of Thespesia populnea L. Plant Soil Environ., 56: 194–199.
  15. Lane, T. W. and Morel F. M., 2000. A biological function for cadmium in marine diatoms. Proc. Natl. Acad. Sci., USA 97: 4627- 4631.
  16. Rahmanian, M., Habib, K., Younes, D, R. and MirHasan, R. S., 2011. Effects of heavy metal resistant soil microbes inoculation and soil Cd concentration on growth and metal uptake of millet, couch grass and alfalfa- Afri. J. Micro.Res., 5: 403- 410.
  17. Rehman, F., Khan F. A., Varshney, D., Naushin, F. and Rastogi, J., 2011.
  18. Singh, A., Kumar, C. S. and Agarwal, A., 2011. Phytotoxicity of Cadmium and Lead in Hydrilla verticillata (l.f.) Royle J. Phytol. 3: 01-04.
  19. Sun, R., Zhou, Q. and Wei. S., 2011. Cadmium accumulation in relation to organic acids and nonprotein thiols in leaves of the recently found Cd hyperaccumulator Rorippa globosa and the Cd-accumulating plant Rorippa islandica. J. Plant Growth Regul., 30: 83–91.
  20. Yang, Y. Y., Jung, J. Y., Song, W. Y., Suh, H. S. and Lee, Y., 2000.
  21. Zhou, Q. X. and Song, Y. F., 2004. Principles and methods of contaminated soil remediation. Science Press, Beijing.
  22. Zhou, W. B. and Qiu, B. S., 2005. Effects of cadmium hyperaccumulation on physiological characteristics of Sedum alfredii Hance (Crassulaceae). Plant Sci., 169: 737-745.

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Published

2018-09-30

Issue

Section

Research Articles

How to Cite

[1]
Dr. Pratibha Srivastava "Comparative effects of Cadmium and Lead on the growth and metabolism of Cow-pea or Lobia (Vigna unguiculata L.)" International Journal of Scientific Research in Science, Engineering and Technology (IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 10, pp.444-454, September-October-2018.