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The Plant Cell December 2005 vol. 17 no. 12 3436-3450

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àÅ£¬ËûÕâÒ»¶ÎDetection of Reactive Oxygen Species. Spectrofluorometry.
Intracellular production of ROS was measured by using 29,79-
dichlorof luorescein diacetate (H2DCF-DA; Molecular
Probes). This nonpolar compound is converted to the membrane-
impermeant polar derivative H2DCF by esterases when
it is taken up by the cell. H2DCF is nonfluorescent but is
rapidly oxidized to the highly fluorescent DCF by intracellular
H2O2 and other peroxides (20). Stocks of H2DCF-DA (5 mM)
were made in ethanol and stored in the dark at 280¡ãC under
argon. H2DCF-DA was added to cells at a final concentration
of 5 mM. After a 30-min incubation, cells were collected in a
microcentrifuge, and the supernatant was removed and diluted
50-fold. Fluorescence was measured by using a Hitachi F2000
fluorescence spectrophotometer (Tokyo) with excitation and
emission wavelengths set at 488 nm and 520 nm, respectively
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6Â¥: Originally posted by a71840584 at 2012-11-06 23:02:50
àÅ£¬ËûÕâÒ»¶ÎDetection of Reactive Oxygen Species. Spectrofluorometry.
Intracellular production of ROS was measured by using 29,79-
dichlorof luorescein diacetate (H2DCF-DA; Molecular
Probes). Thi ...

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Plant Material and Growth Conditions.
Cultured tobacco cells (Nicotiana tabacum cv. Petit Havana SR1) containing Aox1 in either sense (S11) or antisense (AS8) orientation have been characterized (9, 10). All experiments were conducted with exponentially growing cells 3¨C4 days after subculture

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Figure 1 Intracellular ROS abundance in WT and Aox1 transgenic cultured tobacco cells.
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6Â¥: Originally posted by a71840584 at 2012-11-06 23:02:50
àÅ£¬ËûÕâÒ»¶ÎDetection of Reactive Oxygen Species. Spectrofluorometry.
Intracellular production of ROS was measured by using 29,79-
dichlorof luorescein diacetate (H2DCF-DA; Molecular
Probes). Thi ...

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