Abstract：
:The present study was conducted to investigate the tolerance of Spartina densiflora to phenanthrene, and to test its ability in phenanthrene dissipation. A glasshouse experiment was designed to investigate the effect of phenanthrene from 0 to 1000 mg kg(-1) on growth and photosynthetic apparatus of S. densiflora by measuring chlorophyll fluorescence parameters, gas exchange and photosynthetic pigments. We also performed chemical analysis of plant samples, and determined the concentration of phenanthrene remaining in soil. S. densiflora survived to concentrations as high as 1000 mg kg(-1) phenanthrene in soil; in fact, there was no significant difference in RGR among the treatments after 30 days. Otherwise, phenanthrene affected photosynthetic apparatus at 100 and 1000 mg kg(-1); thus, the lower ΦPSII could be explained by the declined photosynthetic pigment concentrations. Soil extraction indicated a more marked rate of phenanthrene disappearance in the soil in the presence of S. densiflora.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Redondo-Gómez S,Andrades-Moreno L,Parra R,Valera-Burgos J,Real M,Mateos-Naranjo E,Cox L,Cornejo Jdoi
10.1016/j.marpolbul.2011.05.018subject
Has Abstractpub_date
2011-08-01 00:00:00pages
1800-8issue
8eissn
0025-326Xissn
1879-3363pii
S0025-326X(11)00282-7journal_volume
62pub_type
杂志文章abstract：:This study reports the mass fractions of Al, Cr, Mn, Fe, Co, Zn, As, Ni, Cu, Cd, Hg, and Pb in water and sediments of the Halda river, Bangladesh, and studies the distribution, contamination, and potential ecological risks of the metals and metalloid. The average mass fractions of As, Cd, and Pb are relatively higher ...
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