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POLLEN MORPHOLOGY OF ONAGRACEAE IN IRAN | ||
| The Iranian Journal of Botany | ||
| مقاله 2، دوره 24، شماره 1، مهر 2018، صفحه 16-27 اصل مقاله (1.22 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/ijb.2018.116720 | ||
| نویسندگان | ||
| Sedigheh Rahimi؛ Ahmadreza Mehrabian* ؛ Massoud Sheidai؛ Mojdeh Mohebi Sadr | ||
| Department of Plant Sciences and technology, Faculty of biological sciences and technology, Shahid Beheshti University, GC. P. O. Box, 1983969411, Tehran, Iran. | ||
| چکیده | ||
| This study aims to assess the pollen characteristics of Iranian Onagraceae based on SEM techniques to evaluate the possibility of giving them a role in systematic analysis. Pollen grains of the studied taxa included radially symmetrical, tetrad tetra-hederal, isopolar, triangular to triangular-spheroidal, 3-zonoporate, with viscin threads, rugulate-granulate, granulate, verrucate and striate sculpturing. Polar axis ranged between 30 and 80 µm. Equatorial axis showed variation from 40 to 90 µm. Moreover, arm diameter ranged between 8.85 to 18.83 µm, pore diameter 8.72 to 21.69 µm. PCOA and Cluster analysis of pollen characteristics did not clearly show sectional divisions based on Flora Iranica as well as Flora of Iran. There are not significant differences in size, shape, pore structure and arm characteristics to delimit all species in Onagraceae. Moreover, Pollen grains are not efficient for generic delimitation in the studied taxa in Iran. Therefore, even though that the examined taxa cannot be distinguished exclusively by pollen, it may be a useful tool for delimitation some taxa in Onagraceae along with other evidence. | ||
| کلیدواژهها | ||
| Palynology؛ Onagraceae؛ Epilobium؛ Circaea؛ Oenothera؛ Iran | ||
| عنوان مقاله [English] | ||
| ریخت شناسی گرده در خانواده گل مغربی در ایران | ||
| نویسندگان [English] | ||
| صدیقه رحیمی؛ احمدرضا محرابیان؛ مسعود شیدایی؛ مژده محبی صدر | ||
| گروه علوم و فناوری گیاهی، دانشکده علوم و فناوری زیستی، دانشگاه شهید بهشتی، تهران، ایران | ||
| چکیده [English] | ||
| این مطالعه با هدف ارزیابی صفات گرده شناسی مبتنی بر تصاویر فناوری میکروسکپ الکترونی نگاره و ارزیابی نقش آنها در تحلیل سیستماتیکی خانواده گل مغربی به انجام رسیده است. دانههای گرده تاکسونهای مطالعه شده با تقارن شعاعی، چهار تایی چهار وجهی، جورقطبی، سه گوش تا سه گوش-کروی، سه منفذی با رشتههای ویسکین، با تزئینات میلهای، دانه دانه تا مخطط می باشند. محور قطبی بین 30-80 میکرومتر، محور استوایی بین 40-90 میکرومتر میباشد. قطر بازوها بین 85/8 تا 83/18 میکرومتر و قطر منافذ 72/8 تا 69/21 میکرومتر بوده است. آنالیز تجزیه به مولفههای اصلی و آنالیز تحلیل خوشهای تمایز بخشهها را بر مبنای فلور ایرانیکا و ایران نمایان نمیسازد. به علاوه تفاوت معناداری در ابعاد، ساختار منافذ و ویژگیهای بازوها برای تعیین محدوده گونهها درخانواده گل مغربی وجود ندارد. به علاوه دانههای گرده برای تمایز تاکسونها مورد مطالعه در سطح جنس چندان کارآمد نیستند. با این وجود حتی اگر تاکسونها به تنهایی بر اساس صفات دانه گرده قابل تفکیک نباشند، این صفت در کنار سایر صفات (صفت کمکی) در تمایز تاکسونهای میتواند موثر واقع شود. | ||
| کلیدواژهها [English] | ||
| Palynology, Onagraceae, Epilobium, Circaea, Oenothera, Iran | ||
| مراجع | ||
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