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Zilla spinosa plant part extracts exhibited significantly different inhibitory effect on the seed germination and seedling
growth of its associate species. Shoot extract reduced the percentage germination and seedling length of different test species
more than root extract. Except of Z. coccineum, seedling growth was more sensitive than seed germination. Shoot/root ratio
of all test species increased significantly with increase in extract concentration. Mycelia growth of the two rhizosphere
fungal species was more significantly reduced by Z. spinosa shoot extract than root extract. The effects of the different
extracts on total protein and total carbohydrate contents of the two test species were comparable. Non-significant increase
was recorded at low concentration of both shoot and root extract. However, with the rise of extract concentration, highly
significant reduction in the content of these metabolites was recorded.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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F. T. El-Hissy M. A. El-Nagdy H. M. El-Sharouny G. A. Abd-Elaah 《Folia microbiologica》1995,40(3):341-344
Physiological responses ofAchlya proliferoides, Saprolegnia ferax andDictyuchus sterilis as affected by the fungicide chlorothalonil (Bravo) were determined. Glucose consumption differed in dependence on the organisms
used. Ammonia and peptide nitrogen secretion were stimulated inS. ferax but inhibited in the other two organisms. All doses of the fungicide used decreased phosphorus absorption and increased acid
phosphatase activity. The lowest concentrations (30 ppm) of the fungicide increased DNA, RNA and protein synthesis while inhibition
was observed at moderate or high concentrations. Aspartate aminotransferase and alanine aminotransferase activities were inhibited
inA. proliferoides, stimulated inS. ferax but remained similar to that of the control inD. sterilis. 相似文献
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