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- Title
Aloe ring spot, a new disease of aloe caused by Haematonectria haematococca (Berk. & Broome) Samuels & Nirenberg (anamorph: Fusarium sp.).
- Authors
Hirooka, Yuuri; Kobayashi, Takao; Takeuchi, Jun; Ono, Tsuyoshi; Ono, Yasunori; Natsuali, Keiko T.
- Abstract
A ring spot disease of Aloe vera was found on leaves of potted seedlings of Aloe vera in Hachijojima and Chichijima Islands, Tokyo. From tissue of ring spot lesions, a fungus producing Fusarium-type conidia was consistently isolated. After 1 month, reddish perithecia of nectriaceous fungus had formed on the colonies of this isolate on PDA. These nectriaceous and Fusarium fungi were identified as Haematonectria haematococca and Fusarium sp., respectively. From a single ascospore isolation, the former was confirmed to be the teleomorph of the Fusarium sp. Typical ring spot lesions were reproduced by artificial inoculations using single ascospore and single conidium isolates. Inoculations of five species of genus Aloe revealed that they were highly susceptible except for A. arborescens. This is the first report of a disease on Aloe caused by H. haematococca (anamorph: Fusarium sp.) in Japan, and it was named aloe ring spot.
- Subjects
ALOE vera; FUSARIUM; PLANT diseases; FUSARIUM oxysporum; PARASITIC plants; ALOE
- Publication
Journal of General Plant Pathology, 2007, Vol 73, Issue 5, p330
- ISSN
1345-2630
- Publication type
Article
- DOI
10.1007/s10327-007-0035-7