Accepted manuscript
Sustainable Alternatives for Managing Silver Scurf on Potato Microtubers and Minitubers
Plant Health Progress
10/27/2025
Abstract
Silver scurf, caused by Helminthosporium solani, is a prevalent tuber blemish disease of potato negatively impacting tuber quality. To reduce reliance on the use of synthetic fungicides for managing silver scurf, this study evaluated 4 pathogen-associated molecular patterns (PAMPs), 3 damage-associated molecular patterns (DAMPs), 5 phytohormones and their-related compounds, and 6 other compounds for their in vitro potential to suppress H. solani infection and sporulation on potato tubers using microtuber and minituber infection assays. Phosphorous acid significantly reduced pathogen sporulation, consistent with its known efficacy. Among the defense elicitors tested, Pep13 notably suppressed H. solani sporulation on microtubers, indicating its promise as a defense inducer. Additionally, cellulose nanofibers (CNFs) derived from softwood and bamboo markedly decreased infection, with bamboo CNF showing greater efficacy. This study suggests that CNFs, in addition to phosphorous acid and Pep13, offer promising sustainable alternatives for managing silver scurf, enhancing the postharvest quality and shelf life of potato tubers.
Metrics
1 File views/ downloads
3 Record Views
Details
- Title
- Sustainable Alternatives for Managing Silver Scurf on Potato Microtubers and Minitubers
- Creators
- Natalia A. Moroz (Author) - Washington State University, Department of Plant PathologyPurnima Puri (Author) - Washington State UniversityGuadalupe Arlene Mora-Romero (Author) - Universidad Autónoma de OccidenteChakradhar Mattupalli (Author) - Washington State University, Department of Plant PathologyKiwamu Tanaka (Author) - Washington State University, Department of Plant Pathology
- Publication Details
- Plant Health Progress
- Academic Unit
- Department of Plant Pathology
- Identifiers
- 99901355500001842
- Language
- English
- Resource Type
- Accepted manuscript