Myxomycetes associated with Australian vertebrate dung

Stephenson, Steven L.; Elliott, Todd F.; Elliott, Kelsey; Vernes, Karl

doi:10.7882/az.2022.041

Cited by 3 publications

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“…tropical forests, temperate forests, grasslands, and deserts) or on different substrates (e.g. the bark of living trees, coarse woody debris, ground litter, and dung; Härkönen 1977;Blackwell and Gilbertson 1984;Stephenson 1988Stephenson , 1989Novozhilov et al 2000;Schnittler and Stephenson 2000;Wrigley de Basanta 2000;Lado et al 2003;Snell et al 2003;Takahashi 2004;Estrada-Torres et al 2009;Ndiritu et al 2009;Adamonyte et al 2011;Dagamac et al 2012;Wellman 2019;Stephenson et al 2020bStephenson et al , 2022White et al 2020). Many species of myxomycetes appear to be widely distributed worldwide and are found in virtually all habitats and microhabitats investigated.…”

Section: Discussionmentioning

confidence: 99%

Myxomycetes associated with the bark, cones and leaves of Australian cypress pines (Callitris spp.)

Stephenson

Elliott

et al. 2023

Aust. J. Bot.

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The diversity of myxomycetes associated with Australia's most diverse native conifer genus, Callitris, has been incompletely studied. Aims. In this study, we examine the diversity of myxomycetes associated with outer bark, fallen cones and dead litter (leaves/ needles) of four Callitris species. Methods. Substrate samples were collected from 13 localities in New South Wales, Queensland and the Northern Territory. Samples were used to prepare moist-chamber cultures, and species of associated myxomycetes were identified. Key results. Twenty-three species in 15 genera were recorded. Percentage occurrence of myxomycetes varied depending on substrate, being 87% (cones), 83% (bark) and 63% (litter). Bark yielded the most species (17), followed by litter (10) and cones (6). Only two species (Arcyria cinerea and S. fusca) were recorded from all three substrates. Substrate pH is often an important factor for the occurrence of myxomycetes, but the mean values recorded for cones (5.7), litter (5.8), and bark (5.9) showed little difference. This suggests that other undetermined factors contributed to the differences in species occurrence. In addition to the records generated in the present study, we provide a list of previous records of myxomycetes found in association with Callitris. Conclusions. This study has highlighted, for the first time, the diversity of myxomycetes associated with members of the genus Callitris and has shown the importance of cypress pines as a substrate for myxomycetes. Implications. This study leads to a better understanding of the biogeography, distribution and ecology of myxomycetes and their associated organisms.

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Section: Discussionmentioning

confidence: 99%

Myxomycetes associated with the bark, cones and leaves of Australian cypress pines (Callitris spp.)

Stephenson

Elliott

et al. 2023

Aust. J. Bot.

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“…However, the species has been recorded from a wide range of substrates and does not appear to have a preference for succulent substrates. The species is widely distributed in Australia (Stephenson 2021;Stephenson et al 2022).…”

Section: Commentsmentioning

confidence: 99%

“…Stephenson et al 2019), this species also has been commonly associated with non-succulent substrates. Its distribution within Australia is scattered but widespread (Stephenson 2021;Stephenson et al 2022).…”

Section: Commentsmentioning

confidence: 99%

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First records of Myxomycetes associated with members of the Cactaceae in Australia

Stephenson

Elliott

2022

Aust. J. Bot.

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Context Cacti are endemic to North and South America, but numerous species have been spread all over the world after Europeans visited the Americas. Their global spread has impacted various aspects of terrestrial ecosystems, including the distributions of succulenticolous myxomycetes. Aims In this study, we examine the association of myxomycetes (also known as plasmodial slime moulds or myxogastrids) with three introduced species of cacti in Australia. Methods Using the moist chamber culturing technique we prepared 33 cultures from dead portions of three species of cacti collected in New South Wales and Queensland. Key results Eighty-eight percent of moist chamber cultures yielded evidence of myxomycetes (either plasmodia or fruiting bodies). A total of 12 species representing six genera were recorded. Physarum compressum was the most abundant species (appearing in 20 of the 33 cultures), with species such as Perichaena depressa also relatively common. We also report the first records of Perichaena luteola in Australia. Conclusions This is the first study to investigate the assemblages of myxomycetes associated with members of the Cactaceae in Australia, and we highlight the occurrence of succulenticolous myxomycetes on the continent. Implications This study leads to a better understanding of the biogeography, distribution and ecology of succulenticolous myxomycetes. We also add a new species record for Australia.

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New Zealand myxomycetes

Stephenson

2023

New Zealand Journal of Botany

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Myxomycetes associated with Australian vertebrate dung

Cited by 3 publications

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Myxomycetes associated with the bark, cones and leaves of Australian cypress pines (Callitris spp.)

Myxomycetes associated with the bark, cones and leaves of Australian cypress pines (Callitris spp.)

First records of Myxomycetes associated with members of the Cactaceae in Australia

New Zealand myxomycetes

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