POLLEN MORPHOLOGY OF THE GENUS CARPINUS L. (CORYLACEAE) IN IRAN

Document Type : Research Paper

Authors

1 PhD Student / Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran

2 Associate Professor / Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran

3 Assistant Professor / Gonbad Kavoos University, Faculty of Agriculture & Natural Resources, Gonbad Kavoos, Iran

4 Assistant Professor / Botany Department, Research Institute of Forests and Rangelands, P. O. Box 13185-116, Tehran, Iran

5 Assistant Professor / Gorgan University, Faculty of Science, Gorgan, Iran

Abstract

Pollen morphology of four taxa of the genus Carpinus growing in Iran was examined, using light (LM) and scanning electron microscopy (SEM). The main aim of this study is to determine the pollen morphology of this genus in Iran and finding the pollen characteristics. The pollen grains are triporate, tetraporate and pentaporate and more or less subprolate. The shape of pores are more or less circular, the surface sculpture of exine is irregularly cone-shaped and the apex is pointed. C. orientalis Miller subsp. macrocarpa (Willk.) Browicz and C. betulus var. parva have the largest and smallest pollen size (mean = 35.18 ± 3.96 µm) and (mean = 24.95 ± 0.18 µm), respectively.

Keywords

Article Title [Persian]

مورفولوژی گرده جنس ممرز (Corylaceae) در ایران

Authors [Persian]

  • سونا آخوندنژاد 1
  • طاهر نژادستاری 2
  • علی ستاریان 3
  • یونس عصری 4
  • محمدباقر باقریه نجار 5
1 دانشجوی دکتری / دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران
2 دانشیار / دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران
3 استادیار / دانشگاه گنبدکاووس، دانشکده کشاورزی و منابع طبیعی
4 استادیار / موسسه تحقیقات جنگلها و مراتع کشور، بخش تحقیقات گیاهشناسی
5 استادیار / دانشگاه گلستان، دانشکده علوم
Abstract [Persian]

مورفولوژی دانه گرده چهار تاکسون از جنس ممرز در ایران با استفاده از میکروسکوپ نوری و الکترونی مورد مطالعه قرار گرفت. هدف از مطالعه بررسی ریخت شناسی دانه گرده جنس ممرز و یافتن صفات مناسب در خصوص گرده شناسی این جنس در ایران است. دانه‌های گرده این جنس سه و چهار یا پنج منفذی و کم و بیش نیمه کشیده هستند. شکل منفد کم و بیش گرد، تزئینات سطح اگزین مخروطی نامنظم و در انتها نوک‌دار است. Carpinus orientalis subsp. macrocarpa و C. betulus var. parva به ترتیب دارای بزرگترین و کوچکترین دانه گرده هستند (96/3 ± 18/35 و 18/0 ± 95/24 میکرومتر).

Keywords [Persian]

  • carpinus
  • Corylaceae
  • Taxonomy
  • pollen
  • Iran

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The Iranian Journal of Botany
Volume 17, Issue 2 - Serial Number 2
December 2011
Pages 233-237

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History

  • Receive Date: 02 May 2011
  • Revise Date: 14 October 2011
  • Accept Date: 08 November 2011

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