Related Experiment Video
Updated: Jan 29, 2026

Dry Root Rot Disease Assays in Chickpea: a Detailed Methodology
Published on: January 17, 2021
First Report of Grape Root Rot Caused by Roesleria subterranea in Michigan
1Department of Plant Pathology, Michigan State University, 105 Center for Integrated Plant Systems, East Lansing 48824.
Roesleria subterranea fungus caused severe vine decline and root rot in Michigan vineyards. This study confirms its pathogenicity and identifies it as a significant threat to Midwestern grape production.
Area of Science:
- Plant Pathology
- Mycology
- Viticulture
Background:
- Grapevines in Michigan exhibited unexplained decline, stunted growth, and root decay.
- Distinctive fungal fruiting bodies resembling Roesleria subterranea were observed on symptomatic vine roots.
Purpose of the Study:
- To identify the causal agent of vine decline in Michigan vineyards.
- To confirm the pathogenicity of the isolated fungus on grapevines.
Main Methods:
- Fungal isolation from symptomatic roots and culturing on potato dextrose agar (PDA).
- DNA extraction and internal transcribed spacer (ITS) sequencing for fungal identification.
- Pathogenicity tests on 'Chardonnay' grape cuttings.
Main Results:
- The isolated fungus was identified as Roesleria subterranea based on morphological and ITS sequence homology.
- Inoculated grape cuttings showed significantly reduced growth, lower fresh-root weight, and fewer fine roots compared to controls.
- The pathogen was successfully re-isolated from inoculated plants, confirming pathogenicity.
Conclusions:
- This is the first report of Roesleria subterranea causing disease in Michigan and the Midwest.
- Roesleria subterranea is a significant pathogen causing vine decline and root rot in vineyards.
- This fungus should be recognized as a potential cause of replant problems in Midwestern viticulture.
Related Concept Videos
Primary and Secondary Growth in Roots and Shoots
Data Reporting and Recording
Types of Reports I: Hands-off Report
Following are the key components and categories of hand-off reports:
Purpose and Process:
Root Mean Square
For example, consider the velocity of gas molecules in a container. The gas molecules are moving in different directions, which might impart positive and negative...
Types of Reports II: Incident or Occurrence Report
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
Types of Reports III: Telephone and Verbal Reports
Here's an overview of each type:
Telephone Orders

