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Determination of genomic instability and DNA methylation effects of Cr on maize (Zea mays L.) using RAPD and CRED-RA analysis

100%

Erturk F. A., Agar G., Arslan E., Nardemir G., Sahin Z.

Acta Physiologiae Plantarum

2014

tom 36

nr 06

In this research, we aimed to evaluate DNA damage levels, DNA methylation, protein and phytohormone levels changes in corn (Zea mays L.) seedlings exposed to chromium nitrate (Cr). The results showed that the used all chromium doses caused a decreasing mitotic index, genomic template stability and soluble protein levels and increasing in RAPDs profile changes (DNA damage) and DNA hypermethylation. In additional, in the high-pressure liquid chromatography analyses, it was also observed that Cr contamination caused a decreasing in the growth-promoting hormones including gibberellic acid (GA), zeatin (ZA) and indole acetic acid (IAA) levels, in contrast to abscisic acid (ABA) level. The results of this experiment have clearly shown that Cr has epigenetic effect as well as genotoxic effect. Some of phytohormones decreasing (GA, ZA and IAA) and especially increasing of ABA levels under Cr stress may be a part of the defense system against the stress.

Effects of lead sulfate on genetic and epigenetic changes, and endogenous hormone evels in corn (Zea mays L.)

86%

Erturk F. A., Agar G., Arslan E., Nardemir G., Aydin M., Taspinar M. S.

Polish Journal of Environmental Studies

2014

tom 23

nr 6

In this research we aimed to evaluate DNA damage levels, DNA methylation, and protein and pytohormone level changes in corn seedlings (Zea mays L.) exposed to 5, 10, 20, and 40 mM concentrations of lead sulfate solution (PbSO4). The results showed that all concentrations of the test material caused a decreasing mitotic index, genomic template stability (GTS), and soluble protein levels, but increased RAPDs profile changes (DNA damage) and DNA hypermethylation. Moreover, in the HPLC (high-pressure liquid chromatography) analyses, it was also observed that Pb contamination caused a decrease in the growth-promoting hormones including gibberellic acid (GA), zeatin (ZA), and indole acetic acid (IAA) levels, in contrast to increasing the absisic acid (ABA) level. The results of this experiment have clearly shown that Pb has a significant impact on the epigenetic mechanisms as well as its genotoxic effects. Some of phytohormone decreases (GA, ZA and IAA) and especially increasing ABA levels under Pb stress may be a part of the defense system against stress.

Ograniczanie wyników

1 Acta Physiologiae Plantarum

1 Polish Journal of Environmental Studies

2 Agar G.

2 Arslan E.

2 Erturk F. A.

2 Nardemir G.

1 Aydin M.

1 Sahin Z.

1 Taspinar M. S.

2 2014

Wyniki wyszukiwania

Determination of genomic instability and DNA methylation effects of Cr on maize (Zea mays L.) using RAPD and CRED-RA analysis

Effects of lead sulfate on genetic and epigenetic changes, and endogenous hormone evels in corn (Zea mays L.)