Morphological anomalies in pea (Pisum sativum L. cv. Hamil.) pollen grains under high doses of zinc
Weryszko-Chmielewska, E. | Stpiczynska, M. | Michonska, M. (Agricultural University, Lublin (Poland). Dept. of Botany)
The morphology of pea (Pisum sativum L. cv. Hamil.) pollen grains was studied after adding zinc to the substrate in doses of: 0, 1, 500 and 1000 mg/pot.The observations were carried using both light and scanning electron microscopy. The largest pollen grains were found at dose of 500 mg/pot. Approximately 10 percent of the grains with such abnormalities in sporoderm structure as various types of swellings, mostly ring-shaped, were found under high concentrations of Zn (500 and 1000 mg/pot). The greatest number of deformed grains (over 40 percent), deeply plicated or strongly flattened, were observed at the dose of 1000 mg/pot. All of the described deformations related to excess Zn are documented photographically
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