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首页> 外文期刊>Pakistan journal of botany >Effects of electromagnetic fields on some indigenous plant species from Pakistan–IV
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Effects of electromagnetic fields on some indigenous plant species from Pakistan–IV

机译：电磁场对巴基斯坦IV某些本土植物物种的影响

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摘要

Effects of electromagnetic fields (EMFs) (created by high tension wires) were studied in 33 specimens belonging to 12 species of 4 angiosperm families. In the study genotoxic effects of EMFs were studied on these plants. The aspects covered in the present study include PMC meiosis, meiotic products and pollen viability. The plants were collected from localities having 132, 220 and 500 kilo volt high tension wires and controls were collected from localities free from any type of electric wires. A number of meiotic a bnormalities inc luding stickiness, pairing disturbances (univa lents and multivalents), precocious chromosomes, laggards, bridges and multipola r divisions were observed both in test and controls; but these abnormalities were found to be significantly higher in test (exposed to EMFs) plants as compared to their controls (unexposed to EMFs).The test plants also showed abnormal meiotic products (dyads and hypertetrads) in some specimens. Besides this the percentages of sterile pollen grains were also significantly higher in test plants. These abnormalities and pollen sterility showed a direct correlation with the increase in voltage i.e. as the volta ges increases these abnormalities and pollen sterility also increases.
机译：在属于4个被子植物科的12种物种的33个标本中研究了电磁场（EMF）（由高压电线产生）的影响。在研究中，研究了EMF对这些植物的遗传毒性作用。本研究涵盖的方面包括PMC减数分裂，减数分裂产物和花粉生存力。从具有132、220和500千伏高压电线的地方收集植物，并从没有任何类型电线的地方收集对照。在测试和对照中都观察到许多减数分裂异常，包括粘性，配对干扰（普通和多价），早熟的染色体，后代，桥和多极分裂;但是发现这些异常在测试植物（暴露于EMFs）中比其对照（未暴露于EMFs）要高得多。在某些标本中，测试植物还显示出异常的减数分裂产物（二倍体和四倍体）。除此之外，测试植物中无菌花粉粒的百分比也显着更高。这些异常和花粉无菌性显示出与电压的增加直接相关，即，随着电压增加，这些异常和花粉无菌性也增加。

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