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Ô­ÎÄ£ºNO concentrations were estimated by following the
conversion of oxyhaemoglobin to methaemoglobin spectropho-
tometrically at 577and 591nm.
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Methods of nitric oxide detection in plants: A commentary
Plant Science 181 (2011) 509¨C 519

NITRIC-OXIDE ASSAY USING HEMOGLOBIN METHOD
METHODS IN ENZYMOLOGY   1994£¬233: 240-250
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NO content determination was performed accordingto
Murphy andNoack(1994) with somemodifications.The fresh
leaves (0.5g) were incubated with100 units of catalase and 100
units of superoxide dismutase for 5min to remove endogenous
ROS beforeaddition of 5mL oxyhaemoglobin(5mM). After 2min
incubation, NO concentrations were estimated byfollowing the
conversion of oxyhaemoglobin to methaemoglobin spectropho-
tometrically at577 and 591nm.
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3Â¥2012-12-02 10:06:47
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