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Plants (Basel)

Title:		Growth Promotion of Phaseolus vulgaris and Arabidopsis thaliana Seedlings by Streptomycetes Volatile Compounds
Author(s):		Perez-Corral DA; Ornelas-Paz JJ; Olivas GI; Acosta-Muniz CH; Salas-Marina MA; Berlanga-Reyes DI; Sepulveda DR; Mares-Ponce de Leon Y; Rios-Velasco C;
Address:		"Centro de Investigacion en Alimentacion y Desarrollo A.C., Unidad Cuauhtemoc, Av. Rio Conchos, S/N, Parque Industrial, Cd. Cuauhtemoc C.P. 31570, Chihuahua, Mexico. Division de Ingenieria, Universidad de Ciencias y Artes de Chiapas, Carretera Villacorzo-Ejido Monterrey Km 3.0., Tuxtla Gutierrez C.P. 30520, Chiapas, Mexico"
Journal Title:		Plants (Basel)
Year:		2022
Volume:		20220325
Issue:		7
Page Number:		-
DOI:		10.3390/plants11070875
ISSN/ISBN:		2223-7747 (Print) 2223-7747 (Electronic) 2223-7747 (Linking)
Abstract:		"Streptomyces are recognized as antipathogenic agents and plant-growth-promoting rhizobacteria. The objective of this study was to evaluate the capacities of four antifungal Streptomyces strains to: produce the substances that are involved in plant growth; solubilize phosphates; and fix nitrogen. The effects of the volatile organic compounds (VOCs) that are emitted by these strains on the growth promotion of Arabidopsis thaliana and Phaseolus vulgaris L. (var. Pinto Saltillo) seedlings were also tested. All of the Streptomyces strains produced indole-3-acetic acid (IAA) (10.0 mg/L to 77.5 mg/L) and solubilized phosphates, but they did not fix nitrogen. In vitro assays showed that the VOCs from Streptomyces increased the shoot fresh weights (89-399%) and the root fresh weights (94-300%) in A. thaliana seedlings; however, these effects were less evident in P. vulgaris. In situ experiments showed that all the Streptomyces strains increased the shoot fresh weight (11.64-43.92%), the shoot length (11.39-29.01%), the root fresh weight (80.11-140.90%), the root length (40.06-59.01%), the hypocotyl diameter (up to 6.35%), and the chlorophyll content (up to 10.0%) in P. vulgaris seedlings. 3-Methyl-2-butanol had the highest effect among the ten pure VOCs on the growth promotion of A. thaliana seedlings. The tested Streptomyces strains favored biomass accumulation in A. thaliana and P. vulgaris seedlings"
Keywords:		bacterial metabolites bean beneficial bacteria plant hormones plant-Streptomyces interactions sustainable agriculture volatile organic compounds (VOCs);
Notes:		"PubMed-not-MEDLINEPerez-Corral, Daniel Alonso Ornelas-Paz, Jose de Jesus Olivas, Guadalupe Isela Acosta-Muniz, Carlos Horacio Salas-Marina, Miguel Angel Berlanga-Reyes, David Ignacio Sepulveda, David Roberto Mares-Ponce de Leon, Yericka Rios-Velasco, Claudio eng 286806/Consejo Nacional de Ciencia y Tecnologia/ Switzerland 2022/04/13 Plants (Basel). 2022 Mar 25; 11(7):875. doi: 10.3390/plants11070875"