Cyto-physiological Effects of Aqueous Extracts of Some Weeds and Clove on the Growth of Chinese Faba Bean (Vicia faba L.)

Cytotoxic and Cytostatic Effects of Leaf Aqueous Extract of <i>Crinum asiaticum</i> in <i>Allium cepa</i> Root Apical Meristem Cells

“…The frequency of chromosomal bridges was comparatively lower than the other previously mentioned chromosomal abnormalities. The maximum percentage (3.03 1.5) of chromosomal bridges was found at 4 mg mL 1 LAECA treatment at 4 h. The stickiness of chromosomes may be the result of excessive elongation of chromatin fibers which causes their improper condensation and can alter the physicochemical properties of nucleic acids, therefore ceasing the normal process of cell division and promoting cell death (Joti et al 2012, Renjana et al 2013, Moustafa et al 2016, El-Ghamery and Mousa 2017. Laggards may appear as a result of irregular chromosomal movements or spindlepoisoning effect (Adam and El-Ashry 2010, Khanna and Sharma 2013, Moustafa et al 2016.…”

“…The maximum percentage (3.03 1.5) of chromosomal bridges was found at 4 mg mL 1 LAECA treatment at 4 h. The stickiness of chromosomes may be the result of excessive elongation of chromatin fibers which causes their improper condensation and can alter the physicochemical properties of nucleic acids, therefore ceasing the normal process of cell division and promoting cell death (Joti et al 2012, Renjana et al 2013, Moustafa et al 2016, El-Ghamery and Mousa 2017. Laggards may appear as a result of irregular chromosomal movements or spindlepoisoning effect (Adam and El-Ashry 2010, Khanna and Sharma 2013, Moustafa et al 2016. Chromosome bridges are the most common clastogenic effect that is formed either due to the chromosome or chromatid breaks or uneven chromatid exchange during translocation (Radić et al 2010, Liman et al 2015.…”

Assessment of Cytological Effects of Food Preservative Potassium Metabisulphite to &lt;i&gt;Allium cepa&lt;/i&gt;

“…Chromosome stickiness may result from entanglement of chromatin fibers, which fall to condense properly in preparation for cell division [43] [44] [45]. Stickiness can cause serious changes in nucleic acids physico-chemical properties or chromatin condensation of the nucleus [46].…”