COMPARATIVE MICROMORPHOLOGICAL CHARACTERISTICS OF LOWER SURFACE OF LEAF EPIDERMIS AND SEED SURFACE IN TWO SERIES OF CRATAEGUS L. (ROSACEAE) AND THEIR TAXONOMICAL ROLE

Document Type : Research Paper

Authors

1 Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), P. O. Box 13185-116, Tehran, Iran.

2 Central Herbarium of Tehran University, Center of Excellence in Phylogeny of Living Organisms, School of Biology, College of Science, University of Tehran, P. O. Box: 14155-6455, Tehran, Iran.

3 Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University, 14115-175, Tehran, Iran.

Abstract

Micromorphological features regarding lower surface of leaf epidermis and seed surface in eight Crataegus taxa representing the series Pentagynae and series Crataegus subseries Erianthae were studied by scanning electron microscopy. All data were analyzed using Anova and PCA statistical methods. Qualitative traits of lower surface of leaf epidermis include relief of cuticle membrane, striations and kinds of crystalloid waxes allow distinct delimitation at infrageneric, inter- and infraspecific levels, whereas the quantitative characteristics are less informative. The seed traits compared to the leaf features provide less reliable characters in the taxonomy of the genus.

Keywords

Article Title [Persian]

مقایسه ویژگی های ریز ریخت شناسی اپیدرم سطح زیرین برگ و سطح دانه در دو سری از جنس .Crataegus L از تیره گلسرخیان (Rosaceae) و نقش تاگزونومیکی آن ها

Authors [Persian]

  • بهنام حمزة 1
  • فریده عطار 2
  • محمد حسن عصاره 1
  • علی اصغر معصومی 1
  • شاهرخ کاظم پور اوصالو 3
1 موسسه تحقیقات جنگلها و مراتع کشور
2 دانشگاه تهران
3 دانشگاه تربیت مدرس
Abstract [Persian]

ویژگی­های ریز ریخت­ شناسی اپیدرم سطح زیرین برگ و سطح دانه در هشت تاگزون از جنس .Crataegus L مربوط به سری series Pentagynae  وسری series Crataegus زیر سری subseries erianthae با استفاده از تصاویر الکترونی (SEM) مورد مطالعه قرار گرفت. تجزیه و تحلیل داده ­ها با استفاده از روش­های آماری تحلیل واریانس یکطرفه (ANOVA) و تحلیل مولفه ­های اصلی (PCA) انجام شد. صفات کیفی اپیدرم سطح زیرین برگ شامل تزیینات غشای کوتیکولی، نواره بندی و انواع واکس­های کریستالوئیدی در سطح زیر جنس، بین گونه ­ها و زیر گونه ­ها جدا کننده بودند در حالی­که صفات کیفی اهمیت کمتری داشتند. صفات مربوط به سطح دانه نیز اهمیت کمتری نسبت به صفات اپیدرم سطح زیرین برگ در تاگزونومی جنس دارند.

Keywords [Persian]

  • Crataegus
  • ser. Pentagynae
  • subser. Erianthae
  • SEM
  • Taxonomy
  • Iran

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The Iranian Journal of Botany
Volume 22, Issue 2 - Serial Number 44
January 2017
Pages 126-137

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History

  • Receive Date: 15 July 2016
  • Revise Date: 03 October 2016
  • Accept Date: 02 November 2016

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