CYTOLOGICAL REACTIONS INDUCED BY SODIUM FLUORIDE IN ALLIUM CEPA ROOT TIP CHROMOSOMES

摘要: Fluorides are potential air pollutants in both rural and urban environments. Such compounds exhausted into the froin a number of industrial operations, including production aluminum steel, phospate-fertilizers. ceramics. Gaseous fluoride is readily absorbed bv leaves, but translocation to other parts plant limited (naines e t al.; 1952). In most plants moved margins tips leaves. According Leone al. (1948) Daines (1952) roots have great capacity precipitate thus remove this substance from system. Under certain conditions, however, soluble fluorides can be through transported producing lesions similar those resulting leaf absorption compounds. As early as 1925, Dustin reported that chemical agents which he called "poisons caryoclasiques" were able exert toxic effect on cell nuclei without apparently injuring cytoplasm. These interest not because any direct effects they may produce cell, irreversible hereditary changes induce chromosomes. The present investigations undertaken determine c~tological cffect sodium solution Allizlnz cepa root tip All iz lm test (Levan 1938) here will include recovery test.