科研之友
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摘要
the objective of this study was to evaluate whether the diesel contaminated soil alters the structure of the root and eophyll of s. commersoniana (euphorbiaceae) and s. terebinthifolius (anacardiaceae) seedlings. for each species three treatments with contaminated soil were tested, and compared to a control of uncontaminated soil. the treatments differed by the time between contaminations and sowing. s. commersoniana was sown 60, 120 and 210 days and s. terebinthifolius 30, 90 and 180 days after contamination. samples of root and eophyll were collected 30 days after sowing and analyzed qualitatively and quantitatively. seedlings of s. commersoniana and s. terebinthifolius, grown in diesel contaminated soil, had their root and eophyll anatomy modifi ed. the time interval between contamination and sowing interferes with the soil phytotoxicityl. when greater the time interval between contamination and sowing lower were the anatomical changes. seedlings of s. terebinthifolius seemed more resistant to contamination than those of s. commersoniana.
