A New Root and Trunk Rot Disease of Grapevine Plantlets Caused by <i>Fusarium</i> in Four Species Complexes.

ABSTRACT: Grapevines are propagated by grafting, but the rootstocks used in commercial plantations are susceptible to several diseases. In this study, we focused on a novel root and trunk rot disease of grapevine plantlets that show symptoms during cold storage, before field establishment. Our objectives were to study the aetiology, symptomatology, plant resistance responses, and mode of action of the pathogen that was initially identified as Fusarium. The characterisation of this pathosystem was performed by isolation, pathogenicity assays, genetic diversity studies with BOX-PCR, and identification by sequencing a fragment of the tef1 gene. Scanning electron microscopy and X-ray spectroscopy were used to study the mode of action and plant resistance responses. The results showed that

SUBMITTER: Cruz JMFL 

PROVIDER: S-EPMC11942937 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature