Matches in SemOpenAlex for { <https://semopenalex.org/work/W2330484498> ?p ?o ?g. }
Showing items 1 to 59 of
59
with 100 items per page.
- W2330484498 abstract "1. The pycnospores of the sooty mould fungus, Capnodium fuliginodes REHM, germinate well in the solutions of honeydews secreted by aphides and scale insects as well as in some plant decoctions. However, they germinate neither in redistilled water nor in both the solutions of glucose and sucrose, and scarcely in RICHARDS' nutrient solution. The pyncnospores of the fungus seem to be unable to germinate unless being reinforced by certain substances derived from some living organisms. It is inferred that the honeydew solutions as well as the plant decoctions contain a certain substance or substances wich stimulate the spore germination of the sooty mould fungus.2. The pyncnopores of the fungus germinate well in the solutions of honeydews secreted by the aphides and scale insects, including Tichoregma bambusifoliae TAK., Aphis sacchari ZEHNT., Thoracaphis fici TAK., Pulvinaria psidii MASK., Pulvinaria polygonata COCK., and Tachardina theae GREEN et MANN. The growth of the germ tubes is also favoured in these solutions. The specific effect of the honeydew on the spore germination of the fungus does not appear distinctly according to the different kinds of aphides and scale insects.3. The solutions of honeydews secreted by the aphides and scale insects were treated with charcoal, siliceous earth or Japanese acid clay, respectively, and the germination of the pycnospores was examined in these treated solutions. They germinated never in the honeydew solution treated with charcoal, but did well in the solution treated with Japanese acid clay or siliceous earth as well as in the untreated solution. The results of the germination tests stated above showed that the effective substance or substances stimulating the spore germination are perfectly adsorbed by charcoal, but not by Japanese acid clay and siliceous earth.4. The solution of the honeydew secreted by Trichoregma bambusifoliae TAK. was kept for 8 or 16 hours continuously at 100°C in a Koch's steam sterilizer, and the germination of spores and the growth of germ tubes of the fungus were examined in the treated solution, and the results showed that both are rather better in the solution treated with heat than in the untreated one. Therfore, the effective substance or substances contained in the honeydew solution seem to be thermostable. The spore germination of the fungus is also favoured on normal agar media which contain enough biotin referred to as a growth promoting substance. It is suggested by the results obtained in the experiments that the effective substance or substances in the honeydews secreted by aphides and scale insects may be biotin or some allied substances." @default.
- W2330484498 created "2016-06-24" @default.
- W2330484498 creator A5049185535 @default.
- W2330484498 date "1952-01-01" @default.
- W2330484498 modified "2023-09-25" @default.
- W2330484498 title "The germination of spores of the sooty mould fungus, and the growth of their germ tubes, with special reference to the honeydews secreted by insects." @default.
- W2330484498 doi "https://doi.org/10.3186/jjphytopath.16.49" @default.
- W2330484498 hasPublicationYear "1952" @default.
- W2330484498 type Work @default.
- W2330484498 sameAs 2330484498 @default.
- W2330484498 citedByCount "0" @default.
- W2330484498 crossrefType "journal-article" @default.
- W2330484498 hasAuthorship W2330484498A5049185535 @default.
- W2330484498 hasBestOaLocation W23304844981 @default.
- W2330484498 hasConcept C100701293 @default.
- W2330484498 hasConcept C144027150 @default.
- W2330484498 hasConcept C174618031 @default.
- W2330484498 hasConcept C2776713116 @default.
- W2330484498 hasConcept C2779678110 @default.
- W2330484498 hasConcept C2993691816 @default.
- W2330484498 hasConcept C36755584 @default.
- W2330484498 hasConcept C59822182 @default.
- W2330484498 hasConcept C86803240 @default.
- W2330484498 hasConceptScore W2330484498C100701293 @default.
- W2330484498 hasConceptScore W2330484498C144027150 @default.
- W2330484498 hasConceptScore W2330484498C174618031 @default.
- W2330484498 hasConceptScore W2330484498C2776713116 @default.
- W2330484498 hasConceptScore W2330484498C2779678110 @default.
- W2330484498 hasConceptScore W2330484498C2993691816 @default.
- W2330484498 hasConceptScore W2330484498C36755584 @default.
- W2330484498 hasConceptScore W2330484498C59822182 @default.
- W2330484498 hasConceptScore W2330484498C86803240 @default.
- W2330484498 hasLocation W23304844981 @default.
- W2330484498 hasOpenAccess W2330484498 @default.
- W2330484498 hasPrimaryLocation W23304844981 @default.
- W2330484498 hasRelatedWork W1601968461 @default.
- W2330484498 hasRelatedWork W1666240313 @default.
- W2330484498 hasRelatedWork W1973886437 @default.
- W2330484498 hasRelatedWork W1978192646 @default.
- W2330484498 hasRelatedWork W1984339754 @default.
- W2330484498 hasRelatedWork W2003866066 @default.
- W2330484498 hasRelatedWork W2007741555 @default.
- W2330484498 hasRelatedWork W2013162693 @default.
- W2330484498 hasRelatedWork W2014277398 @default.
- W2330484498 hasRelatedWork W2021860037 @default.
- W2330484498 hasRelatedWork W2044600076 @default.
- W2330484498 hasRelatedWork W2313967204 @default.
- W2330484498 hasRelatedWork W2316989280 @default.
- W2330484498 hasRelatedWork W2321413773 @default.
- W2330484498 hasRelatedWork W2324412366 @default.
- W2330484498 hasRelatedWork W2389903702 @default.
- W2330484498 hasRelatedWork W2959690553 @default.
- W2330484498 hasRelatedWork W2188346427 @default.
- W2330484498 hasRelatedWork W2336008296 @default.
- W2330484498 hasRelatedWork W3148880705 @default.
- W2330484498 isParatext "false" @default.
- W2330484498 isRetracted "false" @default.
- W2330484498 magId "2330484498" @default.
- W2330484498 workType "article" @default.