Brassica-based seedmeal biofumigation to control Phytophthora cinnamomi in the Spanish “dehesa” oak trees

Phytophthora cinnamomi causes a highly destructive root rot that seriously affects oak trees in semi-natural woodlands known as “dehesas”. Biofumigation with Brassica spp. is a promising tool for disease management. We demonstrated that ground seeds from B. carinata and B. juncea can inhibit mycelial growth and decrease chlamydospore viability of P. cinnamomi in soil. In contrast, B. napus seedmeals were ineffective. Reduction of root necrosis in Lupinus plants was also achieved when soils were biofumigated with B. carinata or B. juncea seedmeals. Seedmeal effectiveness was strongly correlated with high sinigrin (2-propenyl glucosinolate) content. We conclude that biofumigation with seedmeals rich in sinigrin could be effective as part of integrated management of oak disease caused by P. cinnamomi in “dehesas”.

Bibliographic Details

Main Authors:	Ríos, Pedro, González, Mario, Obregón, Sara, Carbonero Muñoz, M. D., Leal Murillo, J. R., Fernández-Rebollo, Pilar, Haro Bailón, Antonio de, Sánchez, María Esperanza
Other Authors:	Ministerio de Economía y Competitividad (España)
Format:	artículo biblioteca
Language:	English
Published:	Firenze University Press 2017
Subjects:	Brassica carinata, Brassica juncea, Brassica napus, Sinigrin,
Online Access:	http://hdl.handle.net/10261/166685 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007652 http://dx.doi.org/10.13039/501100000780
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