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Gardner, D. E. 1999. Unique aspects of Hawaiian rusts. Abstracts of the IXth International Congress of Mycology, International Union of Microbiological Societies; 16-20 August, 1999; Sydney, Australia. P. 198.
ABSTRACT
Hawaiian rusts, along with their hosts, have evolved in isolation from continental influences. Thus, they exhibit morphological and behavioral variation from that often considered typical. The recently resurrected genus Atelocauda, with its endo-form Endoraecium, on Acacia hosts, has deeply reticulate aecio-and urediniospores with prominent germ pores. Atelocauda has affinity to the Australian genus Uromycladium. Teliospores of A. koae, a demicyclic rust, germinate to form modified, permanently attached basidiospores, which in turn germinate to produce 'branches'. Following karyogamy, the diploid nucleus undergoes mitotic division, resulting in two or more diploid daughter nuclei. Meiosis in each nucleus produces four haploid nuclei for each 'branch'. Basidiospore germ tubes may re-infect the host. Puccinia vitata, on Chamaesyce, likewise produces nondeciduous basidiospores that germinate in place. Uromyces alyxiae. P. rutainsulara, and P. rugispora produce single, tetranucleate basidiospores resulting from meiosis, in contrast to the 'norm' in which a single haploid nucleus enters one of four basidiospores following meiosis. Puccinia rugispora teliospores germinate to produce a thin-walled bubble-like structure, soon separated into two by a septum in which meiosis occurs following mitosis.

FULL TEXT
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HOSTS
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PATHOGENS
Rust fungi

RELEVANT TO BIOCONTROL
No.

KEY WORDS
Rust fungi.

IMAGES
08_057 -- teliospores and aeciospores of rust Acacia mangium from Indonesia 08_057 - teliospores and aeciospores of rust Acacia mangium from Indonesia
PATHOGEN: Aspergillus melleus
08_058 -- teliospores and aeciospores of rust Acacia mangium from Indonesia 08_058 - teliospores and aeciospores of rust Acacia mangium from Indonesia
PATHOGEN: Aspergillus melleus
08_059 -- teliospores and aeciospores of rust Acacia mangium from Indonesia 08_059 - teliospores and aeciospores of rust Acacia mangium from Indonesia
PATHOGEN: Aspergillus melleus
08_060 -- teliospores and aeciospores of rust Acacia mangium from Indonesia 08_060 - teliospores and aeciospores of rust Acacia mangium from Indonesia
PATHOGEN: Aspergillus melleus
08_061 -- teliospores and aeciospores of rust Acacia mangium from Indonesia 08_061 - teliospores and aeciospores of rust Acacia mangium from Indonesia
PATHOGEN: Aspergillus melleus
08_062 -- teliospores and aeciospores of rust Acacia mangium from Indonesia 08_062 - teliospores and aeciospores of rust Acacia mangium from Indonesia
PATHOGEN: Aspergillus melleus
09_048 -- new Acacia rust from Indonesia on Acacia mangium 09_048 - new Acacia rust from Indonesia on Acacia mangium
PATHOGEN: Aspergillus melleus
09_049 -- new Acacia rust from Indonesia on Acacia mangium 09_049 - new Acacia rust from Indonesia on Acacia mangium
PATHOGEN: Aspergillus melleus
09_050 -- new Acacia rust from Indonesia on Acacia mangium 09_050 - new Acacia rust from Indonesia on Acacia mangium
PATHOGEN: Aspergillus melleus
09_051 -- new Acacia rust from Indonesia on Acacia mangium 09_051 - new Acacia rust from Indonesia on Acacia mangium
PATHOGEN: Aspergillus melleus
09_052 -- new Acacia rust from Indonesia on Acacia mangium 09_052 - new Acacia rust from Indonesia on Acacia mangium
PATHOGEN: Aspergillus melleus
18_042 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_042 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_043 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_043 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_044 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_044 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_045 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_045 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_046 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_046 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_047 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_047 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_048 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_048 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_049 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_049 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_050 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_050 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_051 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_051 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_052 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_052 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_053 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_053 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_054 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_054 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_055 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_055 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_056 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_056 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_057 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_057 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_058 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_058 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_059 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_059 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_060 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_060 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_061 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_061 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_062 -- Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation 18_062 - Digitata rust teliospores on Acacia mangium from Australia, also aeciospores showing reticulation, several examples of each to show variation
PATHOGEN: Aspergillus melleus
18_063 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_063 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_064 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_064 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_065 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_065 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_066 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_066 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_067 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_067 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_068 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_068 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_069 -- Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old 18_069 - Acacia mangium rust from Australia with prominent spermogonia, pustules are aecial when young, telial when old
PATHOGEN: Aspergillus melleus
18_070 -- germinated teliospore of A. mangium rust 18_070 - germinated teliospore of A. mangium rust
PATHOGEN: Aspergillus melleus
18_071 -- Acacia mangium rust from Australia through quarantized glass 18_071 - Acacia mangium rust from Australia through quarantized glass
PATHOGEN: Aspergillus melleus
18_072 -- Acacia mangium rust in the field in Australia 18_072 - Acacia mangium rust in the field in Australia
PATHOGEN: Aspergillus melleus
18_073 -- Acacia mangium rust in the field in Australia 18_073 - Acacia mangium rust in the field in Australia
PATHOGEN: Aspergillus melleus

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