Combined salt and low nitrate stress conditions lead to morphophysiological changes and tissue-specific transcriptome reprogramming in tomato

Batelli, Giorgia; Ruggiero, Alessandra; Esposito, Salvatore; Venezia, Accursio; Lupini, Antonio; Nurcato, Roberta; Costa, Antonello; Palombieri, Samuela; Vitiello, Antonella; Mauceri, Antonio; Cammareri, Maria; Sunseri, Francesco; Grandillo, Silvana; Granell, Antonio; Abenavoli, Maria Rosa; Grillo, Stefania

doi:10.1016/j.plaphy.2024.108976

Plant Physiology and Biochemistry

2024

DOI: 10.1016/j.plaphy.2024.108976

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Combined salt and low nitrate stress conditions lead to morphophysiological changes and tissue-specific transcriptome reprogramming in tomato

Giorgia Batelli,

Alessandra Ruggiero,

Salvatore Esposito

et al.

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Cited by 3 publications

References 98 publications

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Isolating Water and Nitrogen Stress Tolerant Genotypes Among Tomato Landraces and Solanum pennellii Backcross Inbred Lines

Cirillo,

Ruggiero,

Caullireau

et al. 2024

J Plant Growth Regul

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Isolating Water and Nitrogen Stress Tolerant Genotypes Among Tomato Landraces and Solanum pennellii Backcross Inbred Lines

Cirillo,

Ruggiero,

Caullireau

et al. 2024

J Plant Growth Regul

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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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The Impact of Nutrient Solution Electrical Conductivity on Leaf Transcriptome Contributing to the Fruit Quality of Cucumber Grown in Coir Cultivation

He,

Xu,

Zhou

et al. 2024

IJMS

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Soilless cultivation is increasingly utilized in supplying essential nutrients for greenhouse crops. However, the impact of coir cultivation under varying electrical conductivity (EC) conditions on cucumber growth and fruit quality, particularly through the regulation of gene expression during the vegetative stage, remains uncertain. In this study, we performed metabolic measurements on cucumber in both vegetative and reproductive stages under three different EC conditions and found metabolic products such as some primary metabolites (cellulose, many uncharged amino acids) and some secondary metabolites (rutin, cucurbitacin B) accumulated the most under EC of 5 dS·m−1. Next, we conducted transcriptome profiling in cucumber leaves, revealing that the function of genes significantly regulated by EC was associated with photosynthesis, many anabolic processes, and membrane transport. Finally, a set of genes contributed to metabolites related to the fruit quality of cucumber were identified by the Orthogonal Partial Least Squares (O2PLS) analysis, including genes involved in the biosynthesis of amino acids, polysaccharides, and many secondary metabolites. Taken together, these findings suggest that coir cultivation in greenhouses with moderate EC can induce a transcriptome-wide change in gene expression, thereby contributing to enhancing the abundance of metabolites associated with cucumber fruit quality.

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Combined salt and low nitrate stress conditions lead to morphophysiological changes and tissue-specific transcriptome reprogramming in tomato

Cited by 3 publications

References 98 publications

Isolating Water and Nitrogen Stress Tolerant Genotypes Among Tomato Landraces and Solanum pennellii Backcross Inbred Lines

Isolating Water and Nitrogen Stress Tolerant Genotypes Among Tomato Landraces and Solanum pennellii Backcross Inbred Lines

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

The Impact of Nutrient Solution Electrical Conductivity on Leaf Transcriptome Contributing to the Fruit Quality of Cucumber Grown in Coir Cultivation

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