Transcriptomic Analysis Reveals the Response Mechanisms of Bell Pepper /I to Phosphorus Deficiency

Phosphorus (P) is an important nutritional element needed by plants. Roots obtain P as inorganic phosphate (Pi), mostly in H[sub.2] PO[sup.−] [sub.4] form. It is vital for plants to have a sufficient supply of Pi since it participates in important processes like photosynthesis, energy transfer, and...

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Published in:Metabolites 2023-10, Vol.13 (10)
Main Authors: Salazar-Gutiérrez, Daizha, Cruz-Mendívil, Abraham, Villicaña, Claudia, Heredia, José Basilio, Lightbourn-Rojas, Luis Alberto, León-Félix, Josefina
Format: Article
Language:English
Subjects:
Botanical research
Food and nutrition
Genetic aspects
Phosphorus in the body
Physiological aspects
Plants
Sweet peppers
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Summary:Phosphorus (P) is an important nutritional element needed by plants. Roots obtain P as inorganic phosphate (Pi), mostly in H[sub.2] PO[sup.−] [sub.4] form. It is vital for plants to have a sufficient supply of Pi since it participates in important processes like photosynthesis, energy transfer, and protein activation, among others. The physicochemical properties and the organic material usually make Pi bioavailability in soil low, causing crops and undomesticated plants to experience variations in accessibility or even a persistent phosphate limitation. In this study, transcriptome data from pepper roots under low-Pi stress was analyzed in order to identify Pi starvation-responsive genes and their relationship with metabolic pathways and functions. Transcriptome data were obtained from pepper roots with Pi deficiency by RNASeq and analyzed with bioinformatic tools. A total of 97 differentially expressed genes (DEGs) were identified; Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment revealed that metabolic pathways, such as porphyrin and chlorophyll metabolism, were down-regulated, and galactose and fatty acid metabolism were up-regulated. The results indicate that bell pepper follows diverse processes related to low Pi tolerance regulation, such as the remobilization of internal Pi, alternative metabolic pathways to generate energy, and regulators of root development.
ISSN:2218-1989
2218-1989
DOI:10.3390/metabo13101078