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In order to study effects of enhanced ultraviolet-B (280 nm-320 nm) radiation on the cell mitosis, mature embryos of wheat as explant were cultured in the Murashige and Skoog (MS) medium with different concentration of 2, 4-D and 6-BA. The results indicated the inducing rate of the mature embryos from wheat on the MS with 2, 4-D 1.0 mg/L was higher and the callus was better than on the other culture...
To study the effect of lead ion on the activity of roots of mung bean seedlings, the experiment adopts five kinds of different concentration lead ion to treat with the mung bean seedling, The results show that the higher concentration lead ion treatment resulted in lower activity of mung bean seedlings roots, and lessen protoplasmic surface charge of roots and the rate of electrophoresis migration...
The paper adopts five kinds of different copper ion concentrations to deal with the mung bean seedling, and paraffin wax cut into slices law to study micro-structure of mung bean root, Still analyses Cu2+ to the influence of electric charge of root protoplast surface through micro-cell's electrophoresis in addition. The result shows every structures of the mung bean root of the treated group has obviously...
The effects of He-Ne laser irradiation to wheat induced by enhanced ultraviolet-B (280 nm-320 nm) radiation were studied. Imitating the irradiation on wheat by He-Ne laser and enhanced ultraviolet-B, the change of SOD and amylase isozyme were examined through the polyacrylamide gel electrophoresis (PAGE) and Gel-Pro analysis. The results indicated: compared with the CK, the SOD and amylase of wheat...
The study takes the greenbelt soil at both sides of national highway in YOKOHAMA and the soil of campus Yokohama National University as study areas. It adopts successive soaked extractive-ICP method to analyze the content of lead which is presented in various forms, such as water soluble, Sequential, bound to carbonates, bound to Fe-Mn oxides, bound to organic matter and residual at 0~5 cm and 20~25...
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