Ecology and Distribution of Myxomycetes

Novozhilov, Yuri K.; Rollins, Adam W.; Schnittler, Martin

doi:10.1016/b978-0-12-805089-7.00008-1

Cited by 24 publications

(27 citation statements)

References 147 publications

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“…This differs from previous studies in tropical forests which have often found that myxomycete diversity in the litter is greatest in the leafy fraction (Novozhilov et al. ). The higher species richness expected in the leaf litter compared to the other fractions may be a reflection of the great chemical heterogeneity of leaf litter in tropical forests, which is structurally complex and more rapidly changing (e.g.…”

Section: Discussioncontrasting

confidence: 99%

The Response of Litter‐Associated Myxomycetes to Long‐Term Nutrient Addition in a Lowland Tropical Forest

Walker

Cedeño-Sanchez

Carbonero

et al. 2019

J Eukaryotic Microbiology

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Myxomycetes (plasmodial slime molds) are abundant protist predators that feed on bacteria and other microorganisms, thereby playing important roles in terrestrial nutrient cycling. Despite their significance, little is known about myxomycete communities and the extent to which they are affected by nutrient availability. We studied the influence of long‐term addition of N, P, and K on the myxomycete community in a lowland forest in the Republic of Panama. In a previous study, microbial biomass increased with P but not N or K addition at this site. We hypothesized that myxomycetes would increase in abundance in response to P but that they would not respond to the sole addition of N or K. Moist chamber cultures of leaf litter and small woody debris were used to quantify myxomycete abundance. We generated the largest myxomycete dataset (3,381 records) for any single locality in the tropics comprised by 91 morphospecies. In line with our hypothesis, myxomycete abundance increased in response to P addition but did not respond to N or K. Community composition was unaffected by nutrient treatments. This work represents one of very few large‐scale and long‐term field studies to include a heterotrophic protist highlighting the feasibility and value in doing so.

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Section: Discussioncontrasting

confidence: 99%

The Response of Litter‐Associated Myxomycetes to Long‐Term Nutrient Addition in a Lowland Tropical Forest

Walker

Cedeño-Sanchez

Carbonero

et al. 2019

J Eukaryotic Microbiology

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“…Many species of myxomycetes have worldwide distribution, but some restricted only to the tropics or only temperate regions. Traditionally, it has been advanced that the majority of myxomycetes had cosmopolitan distribution (Rojas et al, 2014;Novozhilov et al, 2017). This idea is consistent with the "ubiquity hypothesis" (Finlay, 2002;Fenchel, Finlay, 2004).…”

Section: Introductionsupporting

confidence: 54%

First records of rare epiphytic species Physarum lakhanpalii and Ph. lenticulare for Russia

Anastasya¹,

Vyacheslav²,

Yurij³

et al. 2019

Turczaninowia

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Epiphytic species are still the least studied group of myxomycetes, because of their life cycle, substrate specialization and method of search using "moist chambers". The Russian's first records of the Physarum lakhanpalii Nann.-Bremek. et Y. Yamam. and Ph. lenticulare Nann.-Bremek. et Y. Yamam. with data on its localities, habitat, and distribution are provided. Ph. lakhanpalii is characterized by light yellow sporocarps, 0.5 mm wide and up to 10 mm long, two-layer peridium and spores, 11-12.5 µm, violaceous brown, adhering in clusters of mostly 4-6. Ph. lenticulare is characterized by gregarious sporocarps, total height 1 mm, sporotheca discoid to lenticular, black stalk, narrowed at the base, sometimes the stalks merge into 2-3 pieces, spores (9)10-11(14) µm, brown, warted and sometimes with clusters of more prominent warts. The revised description of Ph. lakhanpalii and Ph. lenticulare is given in the paper. We present micrographs in SEM for studied species, for Ph. lenticulare they presented for the first time. Ph. lenticulare is one of the rarest species of myxomycetes in the world, previously it was found only in Belgium, France, Netherlands and Japan. Most of the Physarum species in Asian part of Russia are recorded in Novosibirsk Region and currently the genus includes 29 species.

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“…The "moist chambers" method in the Petri dishes is based on the presence of resting stages in the life cycle of myxomycetes (microcysts, sclerotia), of which, under favorable conditions, plasmodia and then sporocarp can develop. Currently, this method is used worldwide to detect myxomycetes in steppe and desert communities [1].…”

Section: Methodsmentioning

confidence: 99%

“…Myxomycetes are found in all terrestrial biomes where there are living plants or dead plant debris. In forests, myxomycetes live on tree debris (stumps, dead trunks, branches), mosses, lichens, old fruiting bodies of aphyllophoroid fungi, in leaf litter and soil [1]. In the steppes and deserts, due to the lack of other types of substrate, myxomycetes live in the litter, on the stems of perennial shrubs and weathered dung of herbivorous animals.…”

Section: Introductionmentioning

confidence: 99%

The first record of a rare species of myxomycetes Perichaena heterospinispora in Asia

Vlasenko

Budsuren²,

Ochirbat³

et al. 2020

BIO Web Conf.

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In Mongolia, for the first time in Asia, a rare species of myxomycetes, Perichaena heterospinispora, has been recorded. Studies were conducted in the vicinity of Ulaanbaatar, in the steppes near Chinggis Khaan Airport. The article provides a description of this species, photographs of sporocarps, photographs of spores on a scanning electron microscope. A description and photographs of capillitial threads are presented for the first time. This rare species differs from all known species of the genus in its unique ornamentation of spores.

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Ecology and Distribution of Myxomycetes

Cited by 24 publications

References 147 publications

The Response of Litter‐Associated Myxomycetes to Long‐Term Nutrient Addition in a Lowland Tropical Forest

The Response of Litter‐Associated Myxomycetes to Long‐Term Nutrient Addition in a Lowland Tropical Forest

First records of rare epiphytic species Physarum lakhanpalii and Ph. lenticulare for Russia

The first record of a rare species of myxomycetes Perichaena heterospinispora in Asia

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