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Published online 23 February 2005
Published in Crop Sci 45:599-605 (2005)
© 2005 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Right arrow Temperature Stress

Effects of Abscisic Acid on Antioxidant Systems of Stylosanthes guianensis (Aublet) Sw. under Chilling Stress

Biyan Zhoua,b, Zhenfei Guoa,* and Zhiling Liub

a College of Life Science, South China Agricultural Univ., Guangzhou 510642, China
b College of Horticulture, South China Agricultural Univ., Guangzhou 510642, China



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Fig. 1. Electrolyte leakage in leaves of S. guianensis as affected by ABA under chilling condition. Each data point is the mean of four samples. Each sample was taken from one pot and measured three times. Different letters indicate statistical difference at P ≤ 0.05 level. A or B represents two separate experiments.

 


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Fig. 2. Electrolyte leakage in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from 3 pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {uparrow} indicates the point of rewarming.

 


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Fig. 3. Relative water contents in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from three pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {uparrow} indicates the point of rewarming.

 


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Fig. 4. Superoxide dismutase (SOD) activities in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from three pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {downarrow} indicates the point of rewarming.

 


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Fig. 5. Catalase (CAT) activities in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from three pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {downarrow} indicates the point of rewarming.

 


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Fig. 6. Ascorbate peroxidase (APX) activities in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from three pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {downarrow} indicates the point of rewarming.

 


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Fig. 7. Reduced glutathione (GSH) contents in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from three pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {uparrow} indicates the point of rewarming.

 


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Fig. 8. Ascorbic acid (AsA) contents in leaves of water- and ABA-treated S. guianensis as affected by chilling. Each data point is the mean of three samples. Each sample was taken from three pots and measured three times. Vertical bars indicate LSD values (P = 0.05) for treatment comparisons at a given day. A or B represents two separate experiments. {uparrow} indicates the point of rewarming.

 





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