Morphological variability and fertility of Syringa josikaea pollen under industrial pollution of the Arctic city

Abstract

The article presents the results of study of the morphology and embryology of Syringa josikaea pollen in the conditions of a cold climate and industrial pollution in the city of Murmansk. Four test sites were laid in the city from the North to the South. During the period of blossoming of lilac, flowers with mature pollen were collected. After staining by acetocarmine, palynological studies and fertility tests were carried out. The shape, size, number of apertures and furrows of pollen, developmental disorders, fertility were studied. High morphological variability and large proportion of sterile pollen were revealed in the North and Central districts of the city of Murmansk, where industrial enterprises are located.