Flavonoids and Isoflavonoids Biosynthesis in the Model Legume Lotus japonicus; Connections to Nitrogen Metabolism and Photorespiration
| Autor: | Marco Betti, Margarita García-Calderón, Antonio J. Márquez, Carmen M. Pérez-Delgado, Peter Pal'ove-Balang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine phenolics legumes Lotus Lotus japonicus Plant Science 01 natural sciences Rhizobia 03 medical and health sciences Isoflavonoid Glutamine synthetase Ecology Evolution Behavior and Systematics Ecology biology Abiotic stress fungi Botany food and beverages biology.organism_classification isoflavonoids Metabolic pathway 030104 developmental biology Biochemistry QK1-989 flavonoids Photorespiration 010606 plant biology & botany |
| Zdroj: | Plants, Vol 9, Iss 774, p 774 (2020) idUS. Depósito de Investigación de la Universidad de Sevilla instname idUS: Depósito de Investigación de la Universidad de Sevilla Universidad de Sevilla (US) |
| ISSN: | 2223-7747 |
| Popis: | Phenylpropanoid metabolism represents an important metabolic pathway from which originates a wide number of secondary metabolites derived from phenylalanine or tyrosine, such as flavonoids and isoflavonoids, crucial molecules in plants implicated in a large number of biological processes. Therefore, various types of interconnection exist between different aspects of nitrogen metabolism and the biosynthesis of these compounds. For legumes, flavonoids and isoflavonoids are postulated to play pivotal roles in adaptation to their biological environments, both as defensive compounds (phytoalexins) and as chemical signals in symbiotic nitrogen fixation with rhizobia. In this paper, we summarize the recent progress made in the characterization of flavonoid and isoflavonoid biosynthetic pathways in the model legume Lotus japonicus (Regel) Larsen under different abiotic stress situations, such as drought, the impairment of photorespiration and UV-B irradiation. Emphasis is placed on results obtained using photorespiratory mutants deficient in glutamine synthetase. The results provide different types of evidence showing that an enhancement of isoflavonoid compared to standard flavonol metabolism frequently occurs in Lotus under abiotic stress conditions. The advance produced in the analysis of isoflavonoid regulatory proteins by the use of co-expression networks, particularly MYB transcription factors, is also described. The results obtained in Lotus japonicus plants can be also extrapolated to other cultivated legume species, such as soybean, of extraordinary agronomic importance with a high impact in feeding, oil production and human health. Ministerio de Ciencia, Innovación y Universidades (MCIU) RTI2018-093571-B-100 España Agencia Estatal de Investigación (AEI) and Fondo Europeo de Desarrollo Regional (FEDER, EU) Project US-1256179 España Junta de Andalucía, FEDER and Universidad de Sevilla project AGL2014-54413-R |
| Databáze: | OpenAIRE |
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