Behrouz E. Malayeri
Department of Biology, Bu-Ali Sina University, Hamedan, Iran
Abdolkarim Chehregani
Department of Biology, Bu-Ali Sina University, Hamedan, Iran
Fariba Mohsenzade
Department of Biology, Bu-Ali Sina University, Hamedan, Iran
Roghayeh Golmohammadi
Department of Biology, Bu-Ali Sina University, Hamedan, Iran
ABSTRACT
The aim of this research was to elucidate some microscopic effects of heavy metals on the developmental stages of ovules in plants. We chose a large area in the near Malayer city as a polluted area. In this region amount of heavy metals is several times more than non-polluted area. Flowers and young pods removed from plants. The specimens fixed in FAA70 stored in 70% ethanol, embedded in paraffin and sectioned at 8 μm with microtome. Staining was carried out with Hematoxylin and developmental stages were compared in plants that collected from polluted and non-polluted area. The results of this research showed that heavy metals can affect some abnormality in during of ovule developmental process, in plants that collected from polluted area. These abnormalities include changes of ovule shape, quick degradation of embryonic sac`s cell, quick growth of integuments, an increase in embryonic sac cytoplasm concentration, irregularity and even stopping the nuclear envelope formation. Finally reduction in number of ovules were seen in polluted plants.
PDF References Citation
How to cite this article
Behrouz E. Malayeri, Abdolkarim Chehregani, Fariba Mohsenzade and Roghayeh Golmohammadi, 2005. Effect of Heavy Metals on the Developmental Stages of Ovule and Embryonic Sac in Euphorbia cheiradenia. Pakistan Journal of Biological Sciences, 8: 622-625.
DOI: 10.3923/pjbs.2005.622.625
URL: https://scialert.net/abstract/?doi=pjbs.2005.622.625
DOI: 10.3923/pjbs.2005.622.625
URL: https://scialert.net/abstract/?doi=pjbs.2005.622.625
REFERENCES
- Nedelkoska, T.V. and P.M. Dorna, 2000. Characteristics of heavy metal uptake by plant species with potential for phytoremediation and phytomining. Minerals Eng., 18: 549-561.
Direct Link - Behrendt, H., W.M. Becher, K.H. Friedichs, U. Darsow and R. Tomingas, 1992. Interaction between aeroallergens and airborne particulate matter. Int. Arch. Allergy Immunol., 99: 425-428.
CrossRefDirect Link - Sawidis, T., 1997. Accumulation and effects of heavy metals in Lilium pollen. Acta Hortic., 437: 153-158.
CrossRefDirect Link - Sawidis, T. and H.D. Reiss, 1995. Effects of heavy metals on pollen tube growth and ultrastructure. Protoplasma, 185: 113-122.
CrossRefDirect Link - Upatham, E.S., E.S. Rangsayatorn, M. Kruatrachue, P. Pokethitiyook and G.R. Lanza, 2002. Phytoremediation potential of spirulina (Arthrospira) platensis: Biosorption and toxicity studies of cadmium. Environ. Pollut., 119: 45-53.
CrossRefDirect Link - Lyon, F.M., 1898. A contribution to the life history of Euphorbia corollata. Bot. Gazette, 25: 418-431.
Direct Link - Landes, M., 1940. Seed development in Acalypha rhomboidea and some other Euphorbiaceae. Am. J. Bot., 33: 562-568.
Direct Link - Weniger, W., 1917. Development of embryo sac and embryo in Euphorbia preslii and E. splendens. Bot. Gazette, 63: 266-281.
CrossRefDirect Link - Carmichael, J.S. and S.M. Selbo, 1999. Ovule, embryo sac, embryo and endosperm development in leafy spurge (Ephorbia esula). Can. J. Bot., 77: 599-610.
CrossRefDirect Link - Chehregani, A., A. Majd, M. Moin, M. Gholami, M.A. Shariatzade and H. Nassiri, 2004. Increasing allergy potency of Zinnia pollen grains in polluted areas. Ecotoxicol. Environ. Saf., 58: 267-272.
CrossRefDirect Link - Chehregani, A.H., A. Majde, M. Moin, M. Golami, S.M. Shariatzadeh and F. Mohsenzae, 2004. Effect of air pollution on some cytogenetic characteristics, structure, viability and proteins of Zinnia elegans pollen grains. Pak. J. Biol. Sci., 7: 118-122.
CrossRefDirect Link