Skip to main content

Advertisement

Log in

Biocontrol of Pythium root rot on lisianthus using a new dark septate endophytic fungus Hyaloscypha variabilis J1PC1

  • Published:
European Journal of Plant Pathology Aims and scope Submit manuscript

Abstract

Pythium root rot is one of the most destructive diseases on lisianthus in Japan. Current management strategies against Pythium root rot are insufficient in controlling the disease especially on hydroponically grown lisianthus. This study aimed to explore the potential of dark septate endophytic (DSE) fungi to suppress the root rot disease caused by Pythium irregulare. Among the 10 DSE screened for their pathogenicity on lisianthus, seven DSE produced a positive effect on shoot growth and were thus selected for the first screening in an axenic dual-plate assay. Accordingly, the isolate J1PC1 displayed consistent disease suppression and was thus selected as a final candidate for evaluation in small- and large-scale hydroponic experiments as well as a pot experiment using commercial soil. Shoot disease severity and disease incidence were significantly reduced by J1PC1 treatment compared with that in the untreated control. The control efficacy of J1PC1 reached 50–70%, consequently producing highly marketable lisianthus plants. J1PC1 showed no signs of direct antagonism nor parasitism on P. irregulare, suggesting that other mechanisms might be involved. Real-time PCR using species-specific primers successfully detected J1PC1 from the root tissues even after 3 months of plant treatment. Using cultural, morphological, and internal transcribed spacer-based molecular analysis, J1PC1 was identified as Hyaloscypha variabilis. Collectively, our results strongly indicate that J1PC1 is a promising biocontrol agent for Pythium root rot.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

We’re sorry, something doesn't seem to be working properly.

Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

References

Download references

Acknowledgements

We are grateful to the Agribusiness Division, Toyama Kankyo Seibi Co., Ltd., for kindly providing the lisianthus seeds and seedlings. We would like to thank Ms. Makiko Fukushima and undergraduate students of Ibaraki University for their technical assistance.

Author information

Authors and Affiliations

Authors

Contributions

All authors contributed to the study conception and design. MM, YT, WH, and HM carried out the experiments and performed the data analysis. The first draft of the manuscript was written by MM. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Kazuhiko Narisawa.

Ethics declarations

Ethical statement

The authors state that this manuscript has not been submitted and published elsewhere.

Conflict of interest

The authors declare that they have no conflict of interest. The research did not involve Human Participants and/or Animals, hence informed consent is not applicable.

Supplementary Information

ESM 1

(DOCX 451 kb)

ESM 2

(DOCX 1583 kb)

ESM 3

(DOCX 814 kb)

ESM 4

(DOCX 1469 kb)

ESM 5

(DOCX 1703 kb)

ESM 6

(DOCX 1871 kb)

ESM 7

(DOCX 411 kb)

ESM 8

(DOCX 18 kb)

ESM 9

(DOCX 18 kb)

ESM 10

(DOCX 19 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Marian, M., Takashima, Y., Harsonowati, W. et al. Biocontrol of Pythium root rot on lisianthus using a new dark septate endophytic fungus Hyaloscypha variabilis J1PC1. Eur J Plant Pathol 163, 97–112 (2022). https://doi.org/10.1007/s10658-022-02459-0

Download citation

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10658-022-02459-0

Keywords

Navigation