Abstract
Koa rust (Uromyces koae Arthur ex Stevens) was reported on koa (Acacia koa Gray) in Hawaii in 1925 (Stevens, 1925). Two spore stages were described, uredia covering parts or usually all of the surface of hypertrophied shoots and telia in discrete spots on otherwise normal leaf tissues. The two stages were apparently considered to be related on the basis of association on the same host. Recently the occurrence, characteristics, and effects of koa rust in Hawaii Volcanoes National Park (HVNP) were discussed but attempts to infect with either spore stage failed (Gardner, 1978). Field observations led to the discovery of the frequent association of Tuberculina maxima Rostrup with the rust on hypertrophied shoots. Morphology of the hyperparasite was similar to T. maxima on Cronartium ribicola Fischer and C. quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme (C. fusiforme Cumm.) (Hubert, 1935; Kuhlman and Miller, 1976). This is the first report of a species of Tuberculina in Hawaii.
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Claims 3
Claim · model-written summary
Tuberculina maxima was frequently associated with koa rust on hypertrophied shoots.
- Taxon
- koae1
- Organ / stage
- hypertrophied shootse0
- Interactor
- Tuberculina maxima Rostrup
Tuberculina maximae0other - Outcome
- frequent association of Tuberculina maxima Rostrup with the ruste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the frequent association of Tuberculina maxima Rostrup with the rust on hypertrophied shoots”
e1“koa (Acacia koa Gray)”
Claim · model-written summary
Tuberculina morphology resembled T. maxima on two other rusts.
- Taxon
- koae1
- Interactor
- T. maximaTuberculina maximae0other
- Outcome
- Morphology of the hyperparasite was similar to T. maximae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphology of the hyperparasite was similar to T. maxima on Cronartium ribicola Fischer and C. quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme”
e1“koa (Acacia koa Gray)”
Claim · model-written summary
A Tuberculina species was reported in Hawaii for the first time.
- Taxon
- koae1
- Interactor
- Tuberculina
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Tuberculinae0other - Outcome
- first report of a species of Tuberculinae0
- Setting
- Hawaiie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“This is the first report of a species of Tuberculina in Hawaii”
e1“koa (Acacia koa Gray)”