Bioremediation of Diuron in Soil  Environment: Influence of Cyanobacterial Mat

Safi, Jamal; Awad, Yousef; El‐Nahhal, Yasser

doi:10.4236/ajps.2014.58120

Cited by 39 publications

(27 citation statements)

References 20 publications

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“…The data in Table 2 indicate strong positive correlation. These data agree with Safi et al [30] who found that Molokhia was sensitive to diuron.…”

Section: Bioassay Studiessupporting

confidence: 93%

Leaching Potential of Diuron and Linuron in Gaza Soils

El‐Nahhal¹,

Abadsa²,

Affifi³

2014

AJPS

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This study investigated the leaching potential of diuron and linuron in different soil types in Gaza Strip, Palestine under laboratory and field conditions. Leaching potential was evaluated by tin columns and bioassay technique using Molokhia as test plant. The responses of the test plant were regressed versus concentrations of the herbicide to estimate linear regression equation and the regression coefficient. The obtained results indicate strong positive association between Molokhia and concentrations of diuron or linuron; accordingly it was used in the bioassay and estimation of the concentrations of the tested herbicides in the leaching depth. Leaching potential was very low in North Gaza and Kkan Younis soil, whereas in the Meddle zone soil was very large. Leaching potential under laboratory conditions was larger that under field conditions. The bioestimated concentrations in soil layer under field conditions were sever folds of magnitude lower than those under laboratory conditions. The interesting outcome of this study is that leaching potential is dependent on soil clay fraction, soil organic matter, and soil pH. These results provided answers to the questions raised by farmers in Gaza Strip.

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“…The data in Table 2 indicate strong positive correlation. These data agree with Safi et al [30] who found that Molokhia was sensitive to diuron.…”

Section: Bioassay Studiessupporting

confidence: 93%

Leaching Potential of Diuron and Linuron in Gaza Soils

El‐Nahhal¹,

Abadsa²,

Affifi³

2014

AJPS

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“…The explanation of these results is that cyanobacterial mats degrade Malathion molecules to non-toxic fragments and use them as a source of energy. These results agree [4,5], which reported the derivative ability of cyanobacterial mats for Acetochlor and Diuron. Further support to our results is in Singh et al [29] report that stated higher levels of Malathion degradation in soil due to a mixed culture of three bacterial strains.…”

Section: Effects On Population Growthsupporting

confidence: 91%

“…Bromacil may inhibit photo system I and/or II and thus reduce population growth. Moreover, it can be hypothesized that at low applied concentrations, cyanobacterial mats may undergo fast adaptation and use the herbicide as a source of energy [5] or undergo community changes [3]. Furthermore, cyanobacterial mats may contain sensitive, tolerant and/or resistant species.…”

Section: Effects Of Chemical Mixturesmentioning

confidence: 99%

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Effects of Bromacil, Malathion and Thiabendazole on Cyanobacteria Mat Growth

El‐Nahhal¹,

El-Hams²

2017

Int J Appl Sci Res Rev

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“…The bioactivity of Nemacur was tested against fish larvae, have 5 ± 0.5 g body weight each according to previous report [33] …”

Section: Nemacur Bio-activity Testmentioning

confidence: 99%

Development of Analytical Method for the Detection of Nemacur Residues in Cucumber Fruits

Al-Kurdi¹,

Alloh²,

Al-Agha³

et al. 2018

AJAC

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Application of Nemacur (Fenamiphos) for pest control may contaminate soil, water and plant with harmful residues and pose threats to human life. This study developed an easy method for the determination of Nemacur residues in cucumber fruits collected from the central markets and from the farm. The method is based on extracting the active ingredients of Nemacur from the commercial formulation and used as a standard material to calibrate the HPLC to determine Nemacur residues in cucumber fruits collected from the central market. Results showed that more than 70% of the active ingredient was extracted from the commercial formulations. Standardization of HPLC with extracted materials showed strong positive association between concentration and peak area relationship. Bioassay investigation showed high mortality of tested organism (fish). Statistical analysis of mortality % between the commercial formulation and those of the extracted ingredient showed no significant differences. These results demonstrated the effectiveness of extracted Nemacur to calibrate HPLC and in bioassay test. Nemacur residues in Cucumber fruits collected from the market were below the detection limit of HPLC, recovery % of Nemacur from control group of cucumber was above 80%. It can be concluded that the method is easily developed and validated by bioassay and chemo-assay.

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Bioremediation of Diuron in Soil Environment: Influence of Cyanobacterial Mat

Cited by 39 publications

References 20 publications

Leaching Potential of Diuron and Linuron in Gaza Soils

Leaching Potential of Diuron and Linuron in Gaza Soils

Effects of Bromacil, Malathion and Thiabendazole on Cyanobacteria Mat Growth

Development of Analytical Method for the Detection of Nemacur Residues in Cucumber Fruits

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