[Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.]

[Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.] Research Abstract Details 

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[Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.] Abstract Text:

Hong-Bo Gao,Shi-Rong Guo,

The effects of exogenous gamma-aminobutyric acid (GABA) on antioxidant defense system and reactive oxygen species (ROS) in seedlings of two varieties with different resistance to hypoxia stress were studied under hypoxia stress in a nutrient solution culture system. The results showed that GABA treatments enhanced the activities of antioxidant enzyme including SOD (Fig. 1), POD (Fig. 2), CAT (Fig. 3), while the concentrations of H2O2 (Fig. 4), O(-.)2 (Fig. 5), MDA (Fig. 6) decreased under hypoxia stress. Among the treatments of three different GABA concentrations, the effect of 50 mmol/L GABA treatment was better than that of 25 mmol/L GABA and 100 mmol/L GABA treatments. The effect of treatment with GABA in "Dongfang xingguang" seedlings, which had stronger hypoxia-resistance to hypoxia stress, were better than that in "Xiyu No.1" seedlings which had lower hypoxia-resistance. It indicates that GABA treatment of exogenous spraying to leaves can increase the activities of antioxidant enzyme under the hypoxia stress and plays an important role in enhancing the resistance to hypoxia stress of muskmelon seedlings through keeping low ROS contents.

[Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.] Publishing Authors By Initials

HB Gao,SR Guo,

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[Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.] Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Zhi wu sheng li yu fen zi sheng wu xue xue bao = J

VOLUME: 30

Page Numbers: 651-9

Journal Abbreviation: Zhi Wu Sheng Li Yu Fen Zi Shen

ISSN: 1671-3877

DAY: 11

MONTH: Dec

YEAR: 2004

[Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.] Information

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LANGUAGE: chi

NlmUniqueID: 101156321

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Grant and Affiliation Information for [Effects of exogenous gamma-aminobutyric acid on antioxidant enzyme activity and reactive oxygen content in muskmelon seedlings under nutrient solution hypoxia stress.]

AFFILIATION: Department of Horticulture, Nanjing Agricultural University, Nanjing 210 095, China.

Country: China

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MEDLINETA: Zhi Wu Sheng Li Yu Fen Zi Shen

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