« Previous AbstractTrichoderma atroviride-emitted volatiles improve growth of Arabidopsis seedlings through modulation of sucrose transport and metabolism    Next AbstractProcessing Effect and Characterization of Olive Oils from Spanish Wild Olive Trees (Olea europaea var. sylvestris) »

Protoplasma

Title:		Reactive oxygen species and NADPH oxidase-encoding genes underly the plant growth and developmental responses to Trichoderma
Author(s):		Esparza-Reynoso S; Avalos-Rangel A; Pelagio-Flores R; Lopez-Bucio J;
Address:		"Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio B3, Ciudad Universitaria C. P, 58030, Morelia, Michoacan, Mexico. Facultad de Quimico Farmacobiologia, Universidad Michoacana de San Nicolas de Hidalgo, C. P, 58240, Morelia, Michoacan, Mexico. Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio B3, Ciudad Universitaria C. P, 58030, Morelia, Michoacan, Mexico. jbucio@umich.mx"
Journal Title:		Protoplasma
Year:		2023
Volume:		20230306
Issue:		5
Page Number:		1257 - 1269
DOI:		10.1007/s00709-023-01847-5
ISSN/ISBN:		1615-6102 (Electronic) 0033-183X (Linking)
Abstract:		"The modulation of plant growth and development through reactive oxygen species (ROS) is a hallmark during the interactions with microorganisms, but how fungi and their molecules influence endogenous ROS production in the root remains unknown. In this report, we correlated the biostimulant effect of Trichoderma atroviride with Arabidopsis root development via ROS signaling. T. atroviride enhanced ROS accumulation in primary root tips, lateral root primordia, and emerged lateral roots as revealed by total ROS imaging through the fluorescent probe H2DCF-DA and NBT detection. Acidification of the substrate and emission of the volatile organic compound 6-pentyl-2H-pyran-2-one appear to be major factors by which the fungus triggers ROS accumulation. Besides, the disruption of plant NADPH oxidases, also known as respiratory burst oxidase homologs (RBOHs) including ROBHA, RBOHD, but mainly RBOHE, impaired root and shoot fresh weight and the root branching enhanced by the fungus in vitro. RbohE mutant plants displayed poor lateral root proliferation and lower superoxide levels than wild-type seedlings in both primary and lateral roots, indicating a role for this enzyme for T. atroviride-induced root branching. These data shed light on the roles of ROS as messengers for plant growth and root architectural changes during the plant-Trichoderma interaction"
Keywords:		"*Trichoderma/genetics Reactive Oxygen Species/metabolism *Arabidopsis Proteins/metabolism *Arabidopsis NADPH Oxidases/genetics/metabolism Plant Roots Gene Expression Regulation, Plant Arabidopsis thaliana Plant biomass Reactive oxygen species Root develop;"
Notes:		"MedlineEsparza-Reynoso, Sarai Avalos-Rangel, Adrian Pelagio-Flores, Ramon Lopez-Bucio, Jose eng A1-S-34768/Consejo Nacional de Ciencia y Tecnologia/ Austria 2023/03/07 Protoplasma. 2023 Sep; 260(5):1257-1269. doi: 10.1007/s00709-023-01847-5. Epub 2023 Mar 6"