New insights into radiata pine seedling root infection by Fusarium circinatum

• DOI: 10.1111/ppa.12376
• Publication Date: 2015-03-31T02:10:36Z
• Authors: N. Martín‐Rodrigues; J. Sanchez‐Zabala; I. Salcedo; J. Majada; C. González‐Murua; M. K. Duñabeitia
• Keywords: Pinus radiata; Radiata; Wilting; Root rot

Pine root infection by Fusarium circinatum has been reported in the literature, but underlying pathogenic interaction is poorly understood. A green fluorescent protein ( GFP )‐tagged F. isolate, together with confocal microscopy, was used order to monitor events associated of Pinus radiata seedlings. It found that reach and successfully infect pine roots, employed features are similar those previously described for other root‐infecting pathogens, such as mycelial strands, single runner hyphae simple hyphopodia well reminiscent known be involved biotrophic invasion, bulbous invasive filamentous hyphae. Abundant sporulation observed at surface inside tracheids both roots collar region. The fungus can spread from aerial parts plant, once there, colonization appears process occurs when pathogen inoculated stem. Wilting symptoms plant demise may result a reduction water uptake blockage vascular system fungal resin.