Journal ArticleDOI
Effect of culture media on antheridial configuration in Phytophthora boehmeriae
TLDR
The position of the antheridium on the oogonium of Phytophthora boehmeriae was greatly affected by culture media, and the effect of culture media on antheridial configuration was found to be due to nutrient concentration.Abstract:
The position of the antheridium on the oogonium of Phytophthora boehmeriae was greatly affected by culture media. Agar medium containing lecithin and basal salts and corn grain agar favored the production of paragynous antheridia, while corn meal agar, lima bean agar, vegetable juice agar, and tomato agar were conducive to formation of amphigynous antheridia. The effect of culture media on antheridial configuration was found to be due to nutrient concentration. A high concentration of nutrients in the media was favored the formation of amphigynous antheridia, and a low concentration of nutrients favored paragynous antheridia.Key words: antheridial configuration, oogonium, nutrients, Phytophthora boehmeriae.read more
Citations
More filters
Journal ArticleDOI
Phylogenetic relationships of Phytophthora species based on ribosomal ITS I DNA sequence analysis with emphasis on Waterhouse groups V and VI
TL;DR: The study provides evidence that the morphological characters used in Phytophthora taxonomy are of limited value for deducing phylogenetic relationships, because they exhibit convergent evolution.
Journal ArticleDOI
Phenotypic variation in a clonal lineage of two Phytophthora cinnamomi populations from Western Australia
TL;DR: It is shown, for the first time for P. cinnamomi, that morphological and pathogenic variation between populations of the clonal lineage are very broad and continuous.
Dissertation
Saprophytic ability and the contribution of chlamydospores and oospores to the survival of Phytophthora cinnamomi
TL;DR: The ability of phosphite to kill chlamydospores and selfed oospores was studied in vitro and the necessity for further study of its effect on survival propagules of P. cinnamomi in the natural environment was revealed.
Journal ArticleDOI
Phosphite impact on the in vitro production and viability of selfed oospores by Phytophthora cinnamomi
TL;DR: It is shown that phosphite does not affect the production of selfed oospores, and four isolates of Phytophthora cinnamomi were able to produce selfed Oospores when cultured in vitro on modified Ribeiro's minimal medium.
Dissertation
Phenotypic variation of two localised populations of Phytophthora cinnamomi from Western Australia and how they impact on Eucalyptus marginata resistance
TL;DR: There is a broad and continuous variation in the morphology and pathology between two populations of one clonal lineage, and that all phenotypes varied independently from one another, no relationship was found between morphological and pathogenic characters.
References
More filters
Book
Phytophthora diseases worldwide
D. C. Erwin,Olaf K. Ribeiro +1 more
TL;DR: In this paper, the authors discuss Phytophthora diseases worldwide and the potential for new types of diseases in the world, including the following types of pests: Phytophytophthora disease worldwide.