Dynamics of physiological and biochemical effects of heat, drought and combined stress on potato seedlings

Wang, Xingxing; Shi, Mingfu; Zhang, Ruyan; Wang, Yong; Zhang, Weina; Qin, Shuhao; Kang, Yichen

doi:10.1186/s40538-024-00639-0

Chem. Biol. Technol. Agric.

2024

DOI: 10.1186/s40538-024-00639-0

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Dynamics of physiological and biochemical effects of heat, drought and combined stress on potato seedlings

Xingxing Wang,

Mingfu Shi,

Ruyan Zhang

et al.

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Cited by 2 publications

References 80 publications

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Effects of Elevated Temperature on Agronomic, Morphological, Physiological and Biochemical Characteristics of Potato Genotypes: 2. Physiological and Biochemical Traits

Naawe,

Yavuz,

Demirel

et al. 2024

Potato Res.

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Effects of Elevated Temperature on Agronomic, Morphological, Physiological and Biochemical Characteristics of Potato Genotypes: 2. Physiological and Biochemical Traits

Naawe,

Yavuz,

Demirel

et al. 2024

Potato Res.

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Exogenous γ-aminobutyric acid (GABA) enhances rye (Secale cereale) seedling resistance to combined freeze-thaw and cadmium stress

Wang,

Bao,

Tian

et al. 2024

Funct. Plant Biol.

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Freeze-thaw is a common stress at high altitudes in northern China. There is a risk of cadmium (Cd) contamination in the region. γ-aminobutyric acid (GABA) is a natural product that regulates plant growth. Rye (Secale cereale) was used as research material to investigate the physiological effects of exogenous GABA on rye seedlings under the single and combined stresses of freeze-thaw and cadmium. The results showed that the combined stress severely inhibited shoot length, root length, fresh weight, and dry weight, increased malondialdehyde and hydrogen peroxide contents, and significantly decreased superoxide dismutase (SOD) activity. Foliar application of 5 mM GABA alleviated the negative effects of stress on seedling growth, increased soluble protein content, and reduced malondialdehyde and hydrogen peroxide contents. Exogenous GABA application also enhanced the activities of SOD and peroxidase (POD). Additionally, the presence of exogenous GABA activated the GABA metabolic process and encouraged the accumulation of phytochelatins, glutathione, and non-protein thiol. These results indicate that exogenous GABA can effectively improve the resistance of rye seedlings to freeze-thaw and Cd by regulating the antioxidant enzyme system and enhancing its own detoxification mechanism, and they provide a basis for future applications of exogenous GABA, which is beneficial for ecological protection.

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Dynamics of physiological and biochemical effects of heat, drought and combined stress on potato seedlings

Cited by 2 publications

References 80 publications

Effects of Elevated Temperature on Agronomic, Morphological, Physiological and Biochemical Characteristics of Potato Genotypes: 2. Physiological and Biochemical Traits

Effects of Elevated Temperature on Agronomic, Morphological, Physiological and Biochemical Characteristics of Potato Genotypes: 2. Physiological and Biochemical Traits

Exogenous γ-aminobutyric acid (GABA) enhances rye (Secale cereale) seedling resistance to combined freeze-thaw and cadmium stress

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