Abstract Ahvaz city in Iran was designated as the most polluted city in the world in 2013 that suffered from a lot of dust storms. Conocarpus erectus is currently the dominant tree species in Ahvaz. In this study, ripe and young inflorescences of plants grown in three cities of the Khuzestan province on dust storm days and clean days (days with no dust storm) were selected and the stamina were separated. Pollen grains were checked in a scanning electron microscope and analysis of the elements existing on the surface of the anthers and pollen grains was accomplished using energy-dispersive X-ray spectroscopy. Results showed that the pollen grains are small-sized monads and the mature pollen has six lobes in a polar view and has six heterocolpate apertures (three colpates and three colporates, one alternating the other) with a polar axis length (P) of 12.998 ± 1.516 μm and an equatorial axis length (E) of 8.698 ± 0.557 μm. The dense Calcite crystals (CaCO3) and particulate matters smaller than 2.5 μm in size including the fragments containing elements such as aluminium, silicon and iron, which are components of soils were attached to all parts of those pollen grains which were collected after dust storms. The crushed pieces of calcite crystals were also seen in the pollen apertures.

中文翻译：

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沙尘暴前后锥果花粉粒的结构和超微结构分析

摘要 伊朗阿瓦士市在2013年遭受了大量沙尘暴，被列为世界上污染最严重的城市。Conocarpus直立树是目前阿瓦士的优势树种。本研究选取胡齐斯坦省三个城市沙尘暴日和清洁日（没有沙尘暴的日子）生长的植物成熟和幼嫩的花序，并进行耐力分离。在扫描电子显微镜中检查花粉粒，并使用能量色散 X 射线光谱分析花药和花粉粒表面存在的元素。结果表明，花粉粒为小单子，成熟的花粉在极地视野有6个裂片，有6个异种孔（3个colpates和3个colporates，一个交替另一个）极轴长度 (P) 为 12.998 ± 1.516 μm，赤道轴长度 (E) 为 8.698 ± 0.557 μm。致密的方解石晶体 (CaCO3) 和小于 2.5 μm 的颗粒物质，包括含有土壤成分铝、硅和铁等元素的碎片，附着在沙尘暴后收集的花粉粒的所有部分。在花粉孔中也看到了方解石晶体的碎块。沙尘暴后收集的花粉粒的所有部分都附着了土壤成分。在花粉孔中也看到了方解石晶体的碎块。沙尘暴后收集的花粉粒的所有部分都附着了土壤成分。在花粉孔中也看到了方解石晶体的碎块。