Image from Google Jackets

Characterization of Fusarium root rot disease in grafted watermelon

Tipo de material: TextoTextoSeries ; European Journal of Plant Pathology, 159(1), p.1-11, 2021Trabajos contenidos:
  • Zhang, M
  • Yang, X
  • Xu, J
  • Liu, G
  • Yao, X
  • Ren, R
Tema(s): Recursos en línea: Resumen: Root rot is an emerging disease of grafted watermelon in China that causes severe yield losses. The causal agents associated with this disease were characterized in this study. A total of 70 fungal isolates were recovered from infected roots, and the most prevalent isolates were identified as Fusarium oxysporum (31 percent of isolates recovered). F. oxysporum isolates induced typical root rot disease symptoms in pathogenicity tests, whereas the other isolates were nonpathogenic. On the basis of combined DNA sequence analyses, specific pathogenicity tests and root rot symptoms, the F. oxysporum was identified as F. oxysporum f. sp. radicis-lagenariae. We evaluated 37 bottle gourd rootstocks for resistance to F. oxysporum f. sp. radicis-lagenariae. The mean disease rating scores (DRSs)ranged from 1.1 to 4.0 at 20 days after inoculation. The rootstock 16S-71 was most resistant to infection. These findings provide useful information for the development of bottle gourd rootstocks with resistance to fusarium root rot and to manage this disease.
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Status Date due Barcode
Documentos solicitados Documentos solicitados CICY Documento préstamo interbibliotecario Ref1 B-18905 (Browse shelf(Opens below)) Available

Root rot is an emerging disease of grafted watermelon in China that causes severe yield losses. The causal agents associated with this disease were characterized in this study. A total of 70 fungal isolates were recovered from infected roots, and the most prevalent isolates were identified as Fusarium oxysporum (31 percent of isolates recovered). F. oxysporum isolates induced typical root rot disease symptoms in pathogenicity tests, whereas the other isolates were nonpathogenic. On the basis of combined DNA sequence analyses, specific pathogenicity tests and root rot symptoms, the F. oxysporum was identified as F. oxysporum f. sp. radicis-lagenariae. We evaluated 37 bottle gourd rootstocks for resistance to F. oxysporum f. sp. radicis-lagenariae. The mean disease rating scores (DRSs)ranged from 1.1 to 4.0 at 20 days after inoculation. The rootstock 16S-71 was most resistant to infection. These findings provide useful information for the development of bottle gourd rootstocks with resistance to fusarium root rot and to manage this disease.

There are no comments on this title.

to post a comment.