Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Sep 25;34(3):340-343.
doi: 10.1264/jsme2.ME19013. Epub 2019 Jun 20.

Weed Roots Facilitate the Spread of Rosellinia necatrix, the Causal Agent of White Root Rot

Hayato Shiragane  1 , Toshiyuki Usami  1 , Masahiro Shishido  1
Affiliations

Weed Roots Facilitate the Spread of Rosellinia necatrix, the Causal Agent of White Root Rot

Hayato Shiragane et al. Microbes Environ. .

Abstract

Rosellinia necatrix causes white root rot in various plants, including the Japanese pear. PCR assays using specific primers for R. necatrix detected the fungus on the roots of nine weed species from infested pear orchards. The soil inoculation experiment revealed that the spread of R. necatrix was similar between weed-mowed and non-weed-mowed treatments under field conditions. The spread of R. necatrix was also observed when rescue grass (Bromus catharticus) was grown in planter boxes under greenhouse conditions, but was limited without the grass, suggesting that some weeds facilitate the spread of R. necatrix in soil.

Keywords: Bromus catharticus; Rosellinia necatrix; rescue grass; weeds; white root rot.

PubMed Disclaimer

References

    1. Black B.D., Griffin J.L., Russin J.S., Snow J.P. Weed hosts for Rhizoctonia solani, causal agent for Rhizoctonia foliar blight of soybean (Glycine max) Weed Technol. 1996;10:865–869.
    1. Busch L.V., Smith E.A., Njohelango F. The effect of weeds on the value of rotation as a practical control for Verticillium wilt of potato. Can Plant Dis Surv. 1978;58:61–64.
    1. Frederick Z.A., Cummings T.F., Johnson D.A. Susceptibility of weedy hosts from Pacific Northwest potato production systems to crop-aggressive isolates of Verticillium dahliae. Plant Dis. 2017;101:1500–1506. - PubMed
    1. Kudo A. White root rot of pear. In: Kishi K., editor. Plant Diseases in Japan. Zenkoku-Noson-Kyoiku-Kyokai (in Japanese); Tokyo: 1999. p. 801.
    1. Malcolm G.M., Kuldau G.A., Gugino B.K., Jimenez-Gasco M.M. Hidden host plant associations of soilborne fungal pathogens: An ecological perspective. Phytopathology. 2013;103:538–544. - PubMed

MeSH terms