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Figure 4 | BMC Plant Biology

Figure 4

From: Effects of aluminum on nucleoli in root tip cells and selected physiological and biochemical characters in Allium cepa var. agrogarumL

Figure 4

Effects of Al on Nucleolar Organizing Regions (NORs) in root tip cells of Allium cepa var. agrogarum L. during mitosis (Arrowhead shows NORs). a-d. Showing decondensed chromatin fibers around the nucleoli. e. Showing decreased nucleoli in size. f. Showing NORs on chromosomes. g. Showing NORs migration with the chromosomes to the poles at anaphase. h. Showing nucleoli rebuilt at early telophase. i. Nucleoli still existed after the treatment with Al during metaphase (50 μM Al, 24 h). j. Showing some particles of the similar silver-stained materials localized in the nuclei (50 μM Al, 48 h). k. Showing nucleoli on chromosomes (50 μM Al, 48 h). l. Showing more similar silver-stained materials located on sticky chromosomes (50 μM Al, 72 h). Scale bar = 10 μm.

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