Journal
JOURNAL OF GENERAL PLANT PATHOLOGY
Volume 83, Issue 6, Pages 366-372Publisher
SPRINGER JAPAN KK
DOI: 10.1007/s10327-017-0736-5
Keywords
Lactuca sativa; Rot disease; Hydroponics; Deep flow technique; DFT
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Funding
- Institute for Fermentation, Osaka (IFO)
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Plectosphaerella rot affects hydroponically grown lettuce, especially those grown using deep flow technique. Plectosphaerella species such as P. pauciseptata and P. cucumerina are reported as causal agents of this disease. However, the relation between fungal lineage and pathogenicity on lettuce has been unclear. From inoculation tests, we discovered that various lineages of Plectosphaerella can infect lettuce tissues. Even strains isolated from non-lettuce plants were pathogenic on lettuce. Furthermore, various lettuce cultivars were equally susceptible to a particular strain. These results indicate that strains from a wide lineage of Plectosphaerella can be pathogenic on various lettuce cultivars.
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