Effect of heavy metals on meiosis cell division in Stachys inflata Benth.

  • سال انتشار: 1398
  • محل انتشار: مجله علوم زیستی خاورمیانه، دوره: 17، شماره: 4
  • کد COI اختصاصی: JR_CJES-17-4_008
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 180
دانلود فایل این مقاله

نویسندگان

Fatemeh Hajmoradi

Department of Biology, Payame-Noor University, Tehran, Iran,Department of Biology, Payame-Noor University, Tehran, Iran

Alireze Taleb Beydokhti

Department of Geology, Faculty of science, Imam Khomeini International University, Qazvin, Iran

چکیده

Stachys inflata Benth. belonging to Lamiaceae, grows in the vicinity of zinc and lead mine around Zehabad village, Qazvin Province, Iran. The aim of this study is to determine how S. inflata is affected by a long-term exposure to zinc and lead pollutants. The focus, here, is on how the meiotic behaviour of pollen mother cells as well as pollen fertility are affected by heavy metal pollutants. ICP-MS analyses of soil and water samples indicated the presence of lead and zinc in a concentration much higher than the recommended standard. The results revealed that soil and water polluted by heavy metals had a significant impeding effect on the division of PMCs in S. inflata. An elevated meiosis abnormality rate, as well as decreases in meiotic index and in pollen fertility were observed compared to the control. The data indicate that this species is not meiotically stable. In general, the pollen mother cells of specimen grown in polluted soil exhibited an increased incidence of chromosome stickiness, B-chromosomes, chromosome bridges, laggard chromosomes, micronucleus, desynapsis, cytomixis and formation of tripolar and pentapolar cells.

کلیدواژه ها

Heavy metal, Meiosis abnormality, Pollution, Stacys inflate

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.