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Metabolites

Title:		Bioactive Metabolite Survey of Actinobacteria Showing Plant Growth Promoting Traits to Develop Novel Biofertilizers
Author(s):		Faddetta T; Polito G; Abbate L; Alibrandi P; Zerbo M; Caldiero C; Reina C; Puccio G; Vaccaro E; Abenavoli MR; Cavalieri V; Mercati F; Palumbo Piccionello A; Gallo G;
Address:		"Dipartimento STEBICEF, Universita degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy. Consiglio Nazionale delle Ricerche, Institute of Biosciences and Bioresources (IBBR), Corso Calatafimi 414, 90129 Palermo, Italy. Mugavero Teresa S.A.S., Corso Umberto e Margherita n. 1/B, Termini Imerese, 90018 Palermo, Italy. Dipartimento AGRARIA, Universita Mediterranea di Reggio Calabria, localita Feo di Vito, 89122 Reggio, Italy. Istituto di Candiolo-Fondazione del Piemonte per l'Oncologia-IRCCS Strada Provinciale, 142-KM 3.95, 10060 Candiolo, Italy. National Biodiversity Future Center, Piazza Marina 61, 90133 Palermo, Italy"
Journal Title:		Metabolites
Year:		2023
Volume:		20230302
Issue:		3
Page Number:		-
DOI:		10.3390/metabo13030374
ISSN/ISBN:		2218-1989 (Print) 2218-1989 (Electronic) 2218-1989 (Linking)
Abstract:		"The use of chemical fertilizers and pesticides has caused harmful impacts on the environment with the increase in economic burden. Biofertilizers are biological products containing living microorganisms capable of improving plant growth through eco-friendly mechanisms. In this work, three actinobacterial strains Streptomyces violaceoruber, Streptomyces coelicolor, and Kocuria rhizophila were characterized for multiple plant growth promoting (PGP) traits such as indole acetic acid production, phosphate solubilization, N(2)-fixation, and drought and salt tolerance. Then, these strains were investigated for their secreted and cellular metabolome, revealing a rich arsenal of bioactive molecules, including antibiotics and siderophores, with S. violaceoruber being the most prolific strain. Furthermore, the in vivo assays, performed on tomato (Solanum lycopersicum L.), resulted in an improved germination index and the growth of seedlings from seeds treated with PGP actinobacteria, with a particular focus on S. violaceoruber cultures. In particular, this last strain, producing volatile organic compounds having antimicrobial activity, was able to modulate volatilome and exert control on the global DNA methylation of tomato seedlings. Thus, these results, confirming the efficacy of the selected actinobacteria strains in promoting plant growth and development by producing volatile and non-volatile bioactive molecules, can promote eco-friendly alternatives in sustainable agriculture"
Keywords:		PGP traits VOCs actinobacteria bioactive metabolites biofertilizers streptomycetes tomato seeds and seedlings;
Notes:		"PubMed-not-MEDLINEFaddetta, Teresa Polito, Giulia Abbate, Loredana Alibrandi, Pasquale Zerbo, Marcello Caldiero, Ciro Reina, Chiara Puccio, Guglielmo Vaccaro, Edoardo Abenavoli, Maria Rosa Cavalieri, Vincenzo Mercati, Francesco Palumbo Piccionello, Antonio Gallo, Giuseppe eng P.O.F.E.S.R. 2014/2020 n. 082015000275/Regione Sicilia/ Switzerland 2023/03/30 Metabolites. 2023 Mar 2; 13(3):374. doi: 10.3390/metabo13030374"