ISSN 0564-3783  



Главная страница
Контакты
Анонсы  
Публикации  
Тематика журнала
Подписка
Вниманию авторов
Редколлегия
Мобильная версия


In English

Export citations
UNIMARC
BibTeX
RIS





SİĞNEM ÖNEY, SELMA TABUR and METİN TUNA

Cytogenetic and molecular responses of ammonium sulphate application for tolerance to extreme temperatures in Vicia faba L.

 

Цитология и генетика


Effects of ammonium sulphate [(NH4)2SO4] on mitosis, cell cycle and chromosomes in Vicia faba L. seeds exposed to extreme temperatures were investigated using flowcytometric and cytogenetic analysis. Seeds germinated at high and low temperatures showed a significant decrease in mitotic index as compared to those of optimum temperature conditions. Application of 50 and 1000 µM (NH4)2SO4 were successful in alleviating the negative effects of low and high temperature on mitotic activity, respectively. 50 µM (NH4)2SO4 showed the most positive effect on cell cycle at the extreme temperatures. This concentration increased the cell division removing or decreasing the negative effects of temperature stress. Namely, the highest G2/M and S phase percentages under stress conditions were obtained with application of 50 µM (NH4)2SO4. Chromosomal aberrations were not observed in cells of seeds germinated in distilled water and also at any temperatures. However, the frequency of chromosomal aberrations increased significantly by increasing (NH4)2SO4 concentration. The highest aberration frequency in all temperature degree tested was found at 1000 µM (NH4)2SO4 concentration.




*

  • Редколлегия международного научного журнала «Цитология и генетика» предлагает авторам анонсы статей, находящихся в портфеле редакции.
  • Статьи получили положительные рецензии и будут опубликованы.
  • Название и резюме даются в авторской редакции.


Copyright© ICBGE 2002-2018 Coded & Designed by Volodymyr Duplij Modified 18.07.18