Abstract
The white root rot of tea in Japan has been supposed to be due to Rosellinia necatrix (HART.) BERL., though the reports were rarely based on the actual observations of its perithecial stage. WATANABE (1963) consequently suggested the possibility that there may be another species of Rosellinia attacking tea or other trees in Japan than R. necatrix.In this study, two specimens of white root rot of tea bearing perithecial stage of Roselli nia were examined for the morphological characters. One was found to be just identical with R. ne-catrix described by the previous investigators, while the other specimen from Kanaya, Shizuoka Pref., was somewhat different from R. necatrix in its size and shape of ascospores (Tablel, Fig. 1, and Fig. 2).' The ascospores of the latter species are longer in size and with more slender and attenuate ends than the former, R. necatrix.This newly found fungus from Kanaya is similar in its shape of ascospores to R. arcuata PETCH reported to be parasitic on tea in Ceylon by PETCH (1923), though the length of ascospores is not identical. R. arcuata illustrated by BUTLER (1918) rather resembles R. necatrix in its shape of ascospores than the authors' fungus from Kanaya. R. bunodes (B. et BR.) SACC., another species parasitic on tea reported by PETCH (1923), is quite different from the authors' species in its perithecial surface covered with minute warts and also in its longer ascospores with thread-like ends.The identification of the authors' fungus from Kanaya is not concluded here because of the lack of direct comparison with the specimens of the related species, especially with R. arcuata. The name "white root rot" of tea is proposed to be applicable to both fungi, R. necatrix and the newly found Rosellinia sp., though the latter still remains unidentified.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
One tea root rot specimen matched R. ne-catrix descriptions.
Verbatim
e0“One was found to be just identical with R. ne-catrix described by the previous investigators”
t0“Tea”
Claim · model-written summary
The Kanaya specimen differed from R. necatrix in ascospore size and shape.
- Taxon
- teat0
- Interactor
- R. necatrixRosellinia necatrixe0pathogen
- Outcome
- different from R. necatrix in its size and shape of ascosporese0
- Setting
- Kanaya, Shizuoka Pref.e0
Verbatim
e0“the other specimen from Kanaya, Shizuoka Pref., was somewhat different from R. necatrix in its size and shape of ascospores”
t0“Tea”
Claim · model-written summary
The Kanaya fungus had longer ascospores with more slender ends than R. necatrix.
Verbatim
e0“The ascospores of the latter species are longer in size and with more slender and attenuate ends than the former, R. necatrix.”
t0“Tea”
Claim · model-written summary
The Kanaya fungus resembled R. arcuata in ascospore shape but not length.
- Taxon
- teae0
- Interactor
- R. arcuata PETCHRosellinia arcuatae0pathogen
- Outcome
- similar in its shape of ascosporese0
- Setting
- Kanayae0
Verbatim
e0“This newly found fungus from Kanaya is similar in its shape of ascospores to R. arcuata PETCH reported to be parasitic on tea in Ceylon by PETCH (1923), though the length of ascospores is not identical.”
t0“Tea”
Claim · model-written summary
The illustrated R. arcuata resembled R. necatrix more than the Kanaya fungus in ascospore shape.
- Taxon
- Teat0
- Interactor
- R. arcuataRosellinia arcuatae0pathogen
- Second interactor
- R. necatrixRosellinia necatrixe0pathogen
- Outcome
- shape of ascosporese0
Verbatim
e0“R. arcuata illustrated by BUTLER (1918) rather resembles R. necatrix in its shape of ascospores than the authors' fungus from Kanaya.”
t0“Tea”
Claim · model-written summary
R. bunodes differed from the Kanaya fungus in perithecial surface and ascospore form.
- Taxon
- teae0
- Interactor
- R. bunodes (B. et BR.) SACC.Dematophora bunodese0pathogen
- Outcome
- perithecial surface covered with minute warts and also in its longer ascospores with thread-like endse0
Verbatim
e0“R. bunodes (B. et BR.) SACC., another species parasitic on tea reported by PETCH (1923), is quite different from the authors' species in its perithecial surface covered with minute warts and also in its longer ascospores with thread-like ends.”
t0“Tea”
Claim · model-written summary
The authors proposed white root rot for disease involving both R. necatrix and the unidentified Rosellinia species.
- Taxon
- teae0
- Interactor
- R. necatrixRosellinia necatrixe0pathogen
- Second interactor
- Rosellinia sp.
Roselliniae0pathogen - Outcome
- "white root rot"e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The name "white root rot" of tea is proposed to be applicable to both fungi, R. necatrix and the newly found Rosellinia sp., though the latter still remains unidentified.”
t0“Tea”