Metabolic indices related to leaf marginal necrosis associated with potassium deficiency in tomato using GC/MS metabolite profiling
| Autor: | Yu Kato, Yoshinari Ohwaki, Toshihiko Tanahashi, Keiki Okazaki, Fukuyo Tanaka, Ikuko Suzuki |
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| Rok vydání: | 2020 |
| Předmět: |
Necrosis
Metabolite Potassium fungi food and beverages chemistry.chemical_element Bioengineering Applied Microbiology and Biotechnology Gas Chromatography-Mass Spectrometry Plant Leaves chemistry.chemical_compound Metabolomics chemistry Solanum lycopersicum Putrescine medicine Potassium deficiency Food science Isoleucine medicine.symptom Polyamine Biotechnology |
| Zdroj: | Journal of bioscience and bioengineering. 130(5) |
| ISSN: | 1347-4421 |
| Popis: | To clarify the physiological factors associated with the development of tomato leaf marginal necrosis associated with potassium deficiency, tomato leaf blades prior to development of the symptoms were collected, and profiles of water-soluble metabolites were analyzed using gas chromatography–mass spectrometry. Multivariate analysis was conducted to screen for a component that was related to potassium deficiency-induced leaf necrosis among the 60 metabolites detected in tomato leaves. Polyamines, sugars, and branched amino acids were ranked highly. Putrescine was most strongly and negatively correlated with potassium concentration and exhibited an exponential response, regardless of the site or plant body. In addition to putrescine, glucose, xylose and l -isoleucine are known to play important roles in stress response and ion balance control, and it is thought that changes in metabolite profiles are linked to tomato leaf marginal necrosis associated with a decrease in endogenous potassium concentration. These findings will be useful for cultivation management to mitigate this physiological disorder of tomato. |
| Databáze: | OpenAIRE |
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