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Annual Research & Review in Biology, ISSN: 2347-565X,Vol.: 30, Issue.: 3

Original-research-article

A Palynological Review for Some Species of Family Boraginaceae Juss. from the Egyptian Flora

 

M. A. Kamel1, Azza M. H. El Hadidy2, Sohair T. Hamed1 and Nagwa R. A. Hussein1*

1Department of Botany, Faculty of Science, South Valley University, Qena, Egypt.

2Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt.

Article Information

Editor(s):

(1) Dr. George Perry, Dean and Professor of Biology, University of Texas at San Antonio, USA.

Reviewers:

(1) Schirley Costalonga, Universidade Federal do Espírito Santo, Brazil.

(2) Chnar Najmaddin Fathulla, Salahaddin University, Iraq.

(3) Comlan M. Koudégnan, University of Lome, Togo.

Complete Peer review History: http://www.sdiarticle3.com/review-history/46408

Abstracts

The pollen grains of 22 species covering 11 genera are investigated. These selected species are represented by the two subfamilies Heliotropioideae and Boraginoideae with 7 tribes. Light and scanning electron microscopic techniques are followed. This work aims to introduce a well-developed identifying constant and valuable features of pollen grains.  General pollen morphological characters are examined: the size, shape, polarity, apertures types & features, colpi characters, endoapertures and tectum characters. Two patterns of grains are observed; hetero- and homoaperturate. Results are significantly variant; grains are monads, mostly minute- or small-sized and prolate or subprolate. Endoapertures shape is lo- or lalongate. Eight pollen types and 2 subtypes are derived from the apertures types & features, and tectum characters. These results are consumed to describe different taxa. A palynological studying of the Boraginaceae is, however, of great taxonomic significance.

Keywords :

Europalynous; heteroaperturate; diorate; endoapertures; endocingulus; bicolpate.

Full Article - PDF    Page 1-16

DOI : 10.9734/ARRB/2018/46408

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