A TAXONOMIC STUDY ON SOIL TAXA OF APOHETEROCYTIC CYANOPROKARYOTA FROM NOSTOCACEAE FAMILY IN IRAN

Document Type : Research Paper

Authors

Faculty of Biosciences, Shahid Beheshti University

Abstract

In a revision of the family Nostocaceae Kützing in terrestrial habitats of Iran, several taxa belonging to six genera were identified. Isolates were collected from 20 paddy field soils located in seven provinces of Iran. Among the identified taxa, 18 species and one variety belong to four genera, Nostoc Vaucher ex Bornet & Flahault, Trichormus (Ralfs ex Bornet & Flahault) Komárek & Anagnostidis, Nodularia Mertens ex Bornet & Flahaultand Aulosira Kirchner ex Bornet & Flahault,known as apoheterocytic cyanoprokaryota and 20 taxa from two genera, Anabaena Bory ex Bornet & Flahault and Cylindrospermum Kützing ex Bornet & Flahault, known as paraheterocytic cyanoprokaryota. Among these taxa, Nostoc linckia var. arvense C. B. Rao Rao, Nostoc alatosporum Sant Anna & al., Nostoc spongiaeforme Agardh ex Born. & Flah. and Nostoc verrucosum Vaucher ex Born. & Flah. are reported as four new records from this family in Iran. An identification key, distribution area and camera lucida pictures of apoheterocytic species as well as description of new taxa are presented in this study.

Keywords

Article Title [Persian]

مطالعه سیانوپروکاریوت های خاکزی با ساختار آپوهتروسیتیک از خانواده Nostocaceae در ایران

Authors [Persian]

  • زینب شریعتمداری
  • حسین ریاحی
دانشکده علوم زیستی دانشگاه شهید بهشتی
Abstract [Persian]

جهت بررسی نمونه ­های خاکزی خانواده Nostocaceae Kützing، تاکسون­های موجود در خاک 20 ایستگاه از 7 استان دارای کشت برنج کشور مورد مطالعه قرار گرفت. طی این تحقیق در مجموع تاکسون‌هایی متعلق به 6 جنس از این خانواده شناسایی شد که از میان تاکسون­های شناسایی شده، 18 گونه و 1 واریته از 4 جنس Nostoc Vaucher ex Bornet & Flahault، Trichormus (Ralfs ex Bornet & Flahault) Komárek & Anagnostidis ، Nodularia Mertens ex Bornet & Flahault و Aulosira Kirchner ex Bornet & Flahault دارای ساختار ترایکمی آپوهتروسیتیک و 20 تاکسون از 2 جنس Anabaena Bory ex Bornet & Flahault و Cylindrospermum Kützing ex Bornet & Flahault دارای ساختار پاراهتروسیتیک می­باشند. از میان گونه ­های شناسایی شده از این خانواده، چهار گونه زیر برای نخستین بار از ایران گزارش می‌شوند و کلید شناسایی، محدوده پراکنش و تصاویر کامرا لوسیدای گونه­ های شناسایی شده، به همراه شرح گونه ­های جدید با تاکید بر تاکسون­های دارای ساختار آپوهتروسیتیک ارائه می­گردد.
Nostoc linckia var. arvense C. B. Rao, Nostoc alatosporum Sant Anna & al., Nostoc spongiaeforme Agardh ex Born. & Flah. and Nostoc verrucosum Vaucher ex Born. & Flah.

Keywords [Persian]

  • Apoheterocytic form
  • akinete
  • cyanoprokaryota
  • Nostocaceae
  • morphospecies
  • new record
  • Iran

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The Iranian Journal of Botany
Volume 19, Issue 2 - Serial Number 2
December 2013
Pages 143-152

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History

  • Receive Date: 30 July 2013
  • Revise Date: 30 September 2013
  • Accept Date: 29 November 2013

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