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Metabolites

Title:		beta-Cyclocitral-Mediated Metabolic Changes Optimize Growth and Defense Responses in Solanum lycopersicum L
Author(s):		Deshpande S; Mitra S;
Address:		"Department of Botany, Savitribai Phule Pune University, Pune 411007, India"
Journal Title:		Metabolites
Year:		2023
Volume:		20230223
Issue:		3
Page Number:		-
DOI:		10.3390/metabo13030329
ISSN/ISBN:		2218-1989 (Print) 2218-1989 (Electronic) 2218-1989 (Linking)
Abstract:		"beta-cyclocitral (betaCC) is one of the significant oxidative products of beta-carotene. It primes plants for multiple stress acclimation without compromising plant growth. Metabolic reorganization is necessary to maintain a balance between growth and defense. However, the betaCC-mediated changes in a plant's metabolic network are unknown. Here, we demonstrate how betaCC-induced metabolic changes enable Solanum lycopersicum L. (tomato) plants to promote defense and maintain growth under stress. An analysis of early (0-240 min) and late (72 h) changes in the tomato metabolome after betaCC-treatment using liquid chromatography and tandem mass spectrometry identified 57 compounds. A principal coordinate analysis suggested that betaCC treatment significantly changes the metabolite profile. A variable importance in projection (VIP) analysis revealed 16 and 19 discriminant metabolites from early and late samples, respectively (VIP >/= 1.0). Upregulated metabolites were mainly amino acids and phytophenols. Pathway enrichment analysis showed that betaCC treatment influenced amino acid metabolism at early and later times; however, phenylpropanoid and isoquinoline biosynthesis were influenced only at the later time. A 66.6% similarity in the upregulated metabolites of betaCC- and simulated-herbivory-treated plants confirmed betaCC's role against herbivores. We conclude that betaCC steers a temporal separation in amino acids and defense metabolite accumulation that optimizes resource allocation to growth and defense"
Keywords:		apocarotenoids herbivory liquid chromatography-mass spectrometry metabolomics stress signaling;
Notes:		"PubMed-not-MEDLINEDeshpande, Shreyas Mitra, Sirsha eng Ramalingaswamy reentry Felloship BT/HRD/35/02/2006/Department of Biotechnology/ Switzerland 2023/03/30 Metabolites. 2023 Feb 23; 13(3):329. doi: 10.3390/metabo13030329"