Rhodotorulic acid enhances root colonization of tomato plants by arbuscular mycorrhizal (AM) fungi due to its stimulatory effect on the pre-symbiotic stages of the AM fungi

Exudates of Rhodotorula mucilaginosa, a yeast commonly found in the rhizosphere, increased hyphal length of the arbuscular mycorrhizal (AM) fungi Gigaspora rosea and Gigaspora margarita. Rhodotorulic acid (RA), a siderophore compound obtained from R. mucilaginosa exudates, increased hyphal length an...

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Detalles Bibliográficos
Autores principales: Scervino, J.M., Sampedro, I., Ponce, M.A., Rodriguez, M.A., Ocampo, J.A., Godeas, A.
Formato: JOUR
Materias:
Arbuscular mycorrhizal fungi
Gigaspora
Rhodotorula mucilaginosa
Rhodotorulic acid
Tomato (Solanum lycopersicum)
Agricultural products
Arsenic compounds
Chlorine compounds
Fruits
Fungi
Soils
AM fungi
Arbuscular mycorrhizal fungus
Hyphal length
Root colonization
Siderophore
Stimulatory effects
Tomato plants
Amplitude modulation
acid
arbuscular mycorrhiza
exudation
rhizosphere
root colonization
siderophore
vegetable
yeast
Arbuscular
Gigaspora margarita
Gigaspora rosea
Lycopersicon esculentum
Rhodotorula (Erythrobasidium clade)
Solanum
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00380717_v40_n9_p2474_Scervino
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Exudates of Rhodotorula mucilaginosa, a yeast commonly found in the rhizosphere, increased hyphal length of the arbuscular mycorrhizal (AM) fungi Gigaspora rosea and Gigaspora margarita. Rhodotorulic acid (RA), a siderophore compound obtained from R. mucilaginosa exudates, increased hyphal length and branching. Thus, the increase in the number of entry points and the higher AM root colonization of tomato plants in the presence of RA can at least partially be explained by the positive effect of RA on the pre-symbiotic stages of the AM fungi. © 2008 Elsevier Ltd. All rights reserved.

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