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DNA injury induced by 5-aminouracil and caffeine in G2 checkpoints path of higher plant cells
Provedor de dados: 47
Autores: Del Campo,A.; Bracho,M.; Marcano,L.; Guíñez,J.; De la Torre,C.
This work evaluated the qualitative and quantitative cellular changes induced by treatment with 5-aminouracil (5-AU) and a combination of 5-AU and caffeine in plant cells in relation to DNA damage, repaired damage, and residual damage. As biological material, Allium cepa L. root tips were used, grown in filtered water, in darkness, with aeration at constant temperature of 25 °C ± 0.5. Cell populations were synchronized using 5 mM caffeine in order to study the effects of 5-AU and caffeine/5-AU combined treatment on the DNA content and their incidence in the entrance to mitosis. The results showed a delay in the G2 period due to induced DNA damage by the 5-AU and caffeine/5-AU combined treatment, shown by aberrant metaphases, anaphases and telophases. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5-aminouracil; G2 checkpoints; Caffeine.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452005000200003