We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Investigations on the cause of soil sickness in fruit trees VII. An actinomycete isolated from rootlets of apple seedlings, the probable cause of specific apple replant disease.
- Authors
Otto, Georg
- Abstract
From earlier investigations it has been deduced, that actinomycetes, which colonize and damage the rootlets of apple trees, might be the cause of soil sickness. Attempts to isolate these actinomycetes had been without success for a long time. Foremost, recognizing that plant hormones play a decisive role in the colonization of rootlets by actinomycetes and by introducing such plant hormones into culture media it succeeded to isolate a species of actinomycetes, which appeared not earlier. Apple seedlings showed clear diminution of growth in a soil that was steamed and inoculated with this isolate. Additionally, a colonization of rootlets by actinomycetes could be observed, which corresponded in frequency and appearance to earlier results from investigations with roots in sick soils. The results are considered a further underpinning of the assumption that root pathogenic actinomycetes are the cause of apple replant disease.
- Subjects
ACTINOMYCETALES infections; APPLE diseases &; pests; REPLANT diseases; PLANT colonization; PLANT hormones
- Publication
Journal of Cultivated Plants / Journal für Kulturpflanzen, 2017, Vol 69, Issue 5, p175
- ISSN
1867-0911
- Publication type
Article
- DOI
10.1399/JFK.2017.05.04