Application of gamma-aminobutyric acid in improving salt stress resistant capacity of corn
A technology of aminobutyric acid and salt stress, which is applied in the field of γ-aminobutyric acid to improve corn salt stress tolerance, can solve problems such as unclear physiological significance, and achieve the effect of simple treatment method, strong operability and high activity
Active Publication Date: 2016-11-30
NORTHEAST AGRICULTURAL UNIVERSITY
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Studies show that GABA is high in the normal mammalian brain, but its physiological significance remains unclear
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specific Embodiment approach 1
[0061] Specific implementation mode 1: The use of γ-aminobutyric acid in this embodiment to improve corn salt stress tolerance, specifically, γ-aminobutyric acid has a regulating effect on oxidative damage and enzyme activity of corn leaves under salt stress.
specific Embodiment approach 2
[0062] Embodiment 2: The difference between this embodiment and Embodiment 1 is that γ-aminobutyric acid reduces the malondialdehyde content in the leaves of corn seedlings under salt stress, thereby reducing the damage to the cell membrane. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0063] Embodiment 3: The difference between this embodiment and Embodiment 1 is that γ-aminobutyric acid reduces the content of superoxide anions in the leaves and reduces the accumulation of superoxide anions in the leaves. Others are the same as in the first embodiment.
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The invention discloses application of gamma-aminobutyric acid in improving salt stress resistant capacity of corn, relates to application of gamma-aminobutyric acid in growth and development of the corn, and aims at providing new application of gamma-aminobutyric acid. Gamma-aminobutyric acid has a regulating effect on oxidative damage and enzymatic activity of corn leaves under salt stress, the content of malonaldehyde in corn seedling leaves under the salt stress is decreased, the content of superoxide anions in the leaves is decreased, the content of superoxide dismutase in the leaves is decreased, improvement of peroxidase activity is promoted, the activity of an antioxidase system under NaCl stress is improved, the regulating effect on corn seedling nitrogen metabolism under the salt stress is achieved, the content of soluble protein of the corn leaves and root systems under the salt stress is increased, and pyruvic acid content, glutamine synthetase activity, glutamate synthase activity, glutamate dehydrogenase activity and glutamate decarboxylase activity in the corn leaves and the system roots under the salt stress are decreased. The application of gamma-aminobutyric acid in improving the salt stress resistant capacity of the corn is used in the field of corn cultivation.
Description
technical field [0001] The invention relates to the use of gamma-aminobutyric acid to improve the salt stress tolerance of corn. Background technique [0002] Corn is an important food and feed crop in my country, and occupies an important position in the national economy. Salinized soil is a widely distributed low-yield soil, which is one of the main environmental factors causing crop yield reduction worldwide. Salt stress will affect the normal growth and development of crops, and maize is a moderately salt-sensitive crop. Salt stress will seriously affect the physiological metabolism of maize, thus directly affecting the growth and development of maize and the formation of yield and quality. [0003] γ-Aminobutyric acid (GABA) is a four-carbon non-protein amino acid that exists in various organisms in a free state. It is very soluble in water, which depends on its multiple configurations in plants. The seeds of plants such as ginseng, jicama, etc. contain GABA, and in a...
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IPC IPC(8): A01G7/06
CPCA01G7/06
Inventor 孟瑶顾万荣王泳超李晶魏湜
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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