Foliar micromorphology of the family Lythraceae in Iran with special emphasis on the genera Lythrum, Ammannia, and Rotala

Document Type : Research Paper

Authors

1 PhD Student, Department of Biology, Faculty of Science, University of Guilan, Rasht, 41938-33697, Iran

2 Associate Prof., Department of Biology, Faculty of Science, University of Guilan, Rasht, 41938-33697, Iran

3 Assistant Prof., Department of Biology, Faculty of Science, Yasouj University, Yasouj, 74934-75918, Iran

Abstract

In the present survey, leaf micromorphological characters of 14 species belonging to three genera viz. Lythrum, Ammannia, and Rotala (Lythraceae) were analyzed using scanning electron microscopy (SEM). The results revealed two types of trichomes, three types of the papilla, nine types and five sub-types of epicuticular wax ornamentation, three types of anticlinal wall and outer periclinal layer, four types of outer stomatal rim/peristomatal rim pattern on both sides of the leaf surfaces. These characteristics are quite useful from taxonomic point of view. Based on the micromorphological characteristics of the leaves, an identification key is also provided for the studied species. Numerical analyses (unweighted pair-group method with arithmetic averages and principal components analysis) was used to find out the similarities and micromorphological correlations among the studied taxa. The present study revealed the alliance of eight Lythrum species, while some traits overlap between Ammannia, Rotala, and three Lythrum. The results also showed that, numerical analyses of leaf micmorphological traits is unable to determine the delimitation of the studied genera.
 

Keywords

Article Title [Persian]

مطالعه ریز‌ریخت‌شناسی برگ تیره گل‌حناییان در ایران با تاکید بر جنس‌های Lythrum، Ammannia و Rotala

Authors [Persian]

  • رعنا محمودی 1
  • مرضیه بیگم فقیر 2
  • ربابه شاهی شاوون 3
1 دانشجوی دکتری گروه زیست‌شناسی، دانشکده علوم، دانشگاه گیلان، کد پستی 33697-41938، رشت، ایران
2 دانشیار گروه زیست‌‌‌شناسی دانشکده علوم، دانشگاه گیلان، کد پستی 33697-41938، رشت، ایران
3 استادیار گروه زیست‌شناسی، دانشکده علوم، دانشگاه یاسوج، کد پستی 75918-74934، یاسوج، ایران
Abstract [Persian]

در بررسی حاضر، ویژگی‌های ریزریخت‌شناسی برگ 14 گونه از سه جنس Lythrum،Ammannia  و  Rotala متعلق به تیره گل‌حناییان (Lythraceae) با استفاده از میکروسکوپ الکترونی روبشی (SEM) مورد تجزیه و تحلیل قرار گرفت. نتایج، دو نوع کرک، سه نوع پاپیل، نه تیپ و پنج زیرتیپ از تزیینات موم روی کوتیکولی، سه نوع دیواره آنتی‌کلینال و لایه بیرونی پری‌کلینال، چهار نوع لبه بیرونی روزنه/ الگوی لبه درونی در دو طرف سطح برگ را آشکار ساخت. این صفات برای شناسایی جنس‌ها و گونه‌های تیره مذکور مهم و دارای اهمیت تاکسونومیک هستند. برای یافتن شباهت‌ها و همبستگی‌های ریزریخت‌شناسی بین آرایه‌ها، از آنالیز عددی (روش جفت-گروه وزن‌دهی نشده با میانگین‌های حسابی و تحلیل مؤلفه‌های اصلی) استفاده شد. یافته‌های بررسی حاضر، ارتباط و اتحاد بین هشت گونه Lythrum را نشان داد، در حالی‌ که برخی از صفات بین گونه‌هایAmmannia ،Rotala  و سه گونه Lythrum هم‌پوشانی داشتند. نتایج این بررسی همچنین نشان داد که تجزیه و تحلیل عددی صفات ریز‌ریخت‌شناسی برگ قادر به تعیین محدوده سه جنس مورد مطالعه نمی‌باشد.

Keywords [Persian]

  • آنالیز چند‌متغیره
  • اپیدرم
  • تاکسونومی
  • موم روی کوتیکولی
  • میکروسکوپ الکترونی

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Rostaniha
Volume 23, Issue 2 - Serial Number 67
December 2022
Pages 161-179

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History

  • Receive Date: 01 May 2022
  • Revise Date: 14 July 2022
  • Accept Date: 22 August 2022

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