Untargeted Metabolomics of Alternaria solani-Challenged Wild Tomato Species Solanum cheesmaniae Revealed Key Metabolite Biomarkers and Insight into Altered Metabolic Pathways

Untargeted metabolomics of moderately resistant wild tomato species Solanum cheesmaniae revealed an altered metabolite profile in plant leaves in response to Alternaria solani pathogen. Leaf metabolites were significantly differentiated in non-stressed versus stressed plants. The samples were discriminated not only by the presence/absence of specific metabolites as distinguished markers of infection, but also on the basis of their relative abundance as important concluding factors. Annotation of metabolite features using the Arabidopsis thaliana (KEGG) database revealed 3371 compounds with KEGG identifiers belonging to biosynthetic pathways including secondary metabolites, cofactors, steroids, brassinosteroids, terpernoids, and fatty acids. Annotation using the Solanum lycopersicum database in PLANTCYC PMN revealed significantly upregulated (541) and downregulated (485) features distributed in metabolite classes that appeared to play a crucial role in defense, infection prevention, signaling, plant growth, and plant homeostasis to survive under stress conditions. The orthogonal partial least squares discriminant analysis (OPLS-DA), comprising a significant fold change (≥2.0) with VIP score (≥1.0), showed 34 upregulated biomarker metabolites including 5-phosphoribosylamine, kaur-16-en-18-oic acid, pantothenate, and O-acetyl-L-homoserine, along with 41 downregulated biomarkers. Downregulated metabolite biomarkers were mapped with pathways specifically known for plant defense, suggesting their prominent role in pathogen resistance. These results hold promise for identifying key biomarker metabolites that contribute to disease resistive metabolic traits/biosynthetic routes. This approach can assist in mQTL development for the stress breeding program in tomato against pathogen interactions.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Metabolites - 13(2023), 5 vom: 24. Apr.

Sprache:

Englisch

Beteiligte Personen:

Singh, Dhananjaya Pratap [VerfasserIn]
Bisen, Mansi Singh [VerfasserIn]
Prabha, Ratna [VerfasserIn]
Maurya, Sudarshan [VerfasserIn]
Yerasu, Suresh Reddy [VerfasserIn]
Shukla, Renu [VerfasserIn]
Tiwari, Jagesh Kumar [VerfasserIn]
Chaturvedi, Krishna Kumar [VerfasserIn]
Farooqi, Md Samir [VerfasserIn]
Srivastava, Sudhir [VerfasserIn]
Rai, Anil [VerfasserIn]
Sarma, Birinchi Kumar [VerfasserIn]
Rai, Nagendra [VerfasserIn]
Singh, Prabhakar Mohan [VerfasserIn]
Behera, Tusar Kanti [VerfasserIn]
Farag, Mohamed A [VerfasserIn]

Links:

Volltext

Themen:

Alternaria solani
Biotic stress
Early blight
Journal Article
Metabolite profiling
Metabolomics
Secondary metabolites
Solanum cheesmaniae

Anmerkungen:

Date Revised 29.05.2023

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/metabo13050585

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM35735897X