Pollen diversity of some woody plants in new Damietta city.

Document Type : Original articles

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1 Botany and microbiology Department, Faculty of Science, Damietta University

2 Botany and microbiology

Abstract

Abstract: The presented study is handling the pollen morphology of 36 woody species belonging to 20 families were collected from the New Damietta City, Egypt. Standard pollen collection (conducted from October 2020 to April 2021), storage and preparation (Erdmann's acetolysis technique) methods were used. The results revealed 58.3% of species with Prolate spheroidal pollen, 16.7% with Oblate spheroidal pollen, 16.7% with Subprolate pollen, 5.6% with Prolate pollen and 2.7% with Suboblate pollen. Tricolporate apertures accounted for almost half of apertures types with Triporate, Monocolpate, Tricolpate, Tetraporate, Pantoporate, Tricolporate, inaperturate, Tetracolporate and Spiral aperture representing the remainder. Exine ornamentations ranged from Psilate (33.3%),Reticulate (27.7) to micro-reticulate, scabrate, granulate, echinate each represents (2%) and clavate, verrucate, rugulate, striate, psilate- perforate, clavate-reticulate made up (1%) for each type. Two kinds of grain arrangements (polyads and monads) were found. We made an identity key to the studied area for aiding palynologists, taxonomists, and other researchers that work in relevant fields. Characterization of Pollen traits have been diagnosed by using a camera-ready light microscope. These results would undoubtedly beneficial for taxonomic practice in the area.

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