Myxomycete assemblages were compared on various leaf litters of different vegetation types in a local mixed forest consisting of deciduous and evergreen trees in western Japan. A total of 33 myxomycete species were re...Myxomycete assemblages were compared on various leaf litters of different vegetation types in a local mixed forest consisting of deciduous and evergreen trees in western Japan. A total of 33 myxomycete species were recorded and associated with the chemical and biological environments of leaf litters under natural condition of the forest floor. Different myxomycete assemblages were found on different sites under the dominant trees in a short distance apart (300 m). A site of Prunus jamasakura tree yielded 21 species, a Quercus glauca tree yielded 20 species, an Ilex pedunculosa tree yielded 12 species, and two Quercus serrata trees yielded 13 and 14 species, respectively. Non-metric multidimensional scaling demonstrated that the myxomycete assemblages were closely related to the litter types of deciduous and evergreen trees, and both litter pH and cellulolytic activity influenced distribution of myxomycete species. Species richness was higher in leaf litters with higher pH than in leaf litters with more acidic pH such as I. pedunculosa litter. The dominant tree litter and litter pH strongly influenced the species distribution of foliicolous myxomycetes in a local mixed forest.展开更多
Although studies of myxomycetes(plasmodial slime moulds)in the Asia Pacific region have been remarkable for the past years,studies about myxomycetes assemblages in association with homogenous vegetation are relatively...Although studies of myxomycetes(plasmodial slime moulds)in the Asia Pacific region have been remarkable for the past years,studies about myxomycetes assemblages in association with homogenous vegetation are relatively few.In an effort to investigate further about myxomycetes assemblages in monotypic vegetation,the present study was carried out in three different agricultural plantations(Camellia sinensis(L.)Kuntze.,Dimocarpus longan Lour.,Psidium guajava L.).Ninety percent(90%)of the moist chamber cultures gave a total of 165 records(107 determinable fruiting bodies and 58 plasmodial records).From these records,20 myxomycetes morphospecies composed of 17 clear-cut species and three varieties of the species Arcyria cinerea were recorded.The occasionally reported myxomycetes species Physarum tenerum in other Southeast Asian countries seems to be abundantly occurring for the agricultural litters in Vietnam.This study noted that agricultural leaf litter substrates with leathery leaf texture can serve as spore traps for myxomycetes that are dispersing in the environment.Hence,agricultural litters are good microhabitat for many known cosmopolitan myxomycetes.This is the first report of myxomycetes assemblages associated with Camellia sinensis,Dimocarpus longan and Psidium guajava leaf litters.展开更多
文摘Myxomycete assemblages were compared on various leaf litters of different vegetation types in a local mixed forest consisting of deciduous and evergreen trees in western Japan. A total of 33 myxomycete species were recorded and associated with the chemical and biological environments of leaf litters under natural condition of the forest floor. Different myxomycete assemblages were found on different sites under the dominant trees in a short distance apart (300 m). A site of Prunus jamasakura tree yielded 21 species, a Quercus glauca tree yielded 20 species, an Ilex pedunculosa tree yielded 12 species, and two Quercus serrata trees yielded 13 and 14 species, respectively. Non-metric multidimensional scaling demonstrated that the myxomycete assemblages were closely related to the litter types of deciduous and evergreen trees, and both litter pH and cellulolytic activity influenced distribution of myxomycete species. Species richness was higher in leaf litters with higher pH than in leaf litters with more acidic pH such as I. pedunculosa litter. The dominant tree litter and litter pH strongly influenced the species distribution of foliicolous myxomycetes in a local mixed forest.
文摘Although studies of myxomycetes(plasmodial slime moulds)in the Asia Pacific region have been remarkable for the past years,studies about myxomycetes assemblages in association with homogenous vegetation are relatively few.In an effort to investigate further about myxomycetes assemblages in monotypic vegetation,the present study was carried out in three different agricultural plantations(Camellia sinensis(L.)Kuntze.,Dimocarpus longan Lour.,Psidium guajava L.).Ninety percent(90%)of the moist chamber cultures gave a total of 165 records(107 determinable fruiting bodies and 58 plasmodial records).From these records,20 myxomycetes morphospecies composed of 17 clear-cut species and three varieties of the species Arcyria cinerea were recorded.The occasionally reported myxomycetes species Physarum tenerum in other Southeast Asian countries seems to be abundantly occurring for the agricultural litters in Vietnam.This study noted that agricultural leaf litter substrates with leathery leaf texture can serve as spore traps for myxomycetes that are dispersing in the environment.Hence,agricultural litters are good microhabitat for many known cosmopolitan myxomycetes.This is the first report of myxomycetes assemblages associated with Camellia sinensis,Dimocarpus longan and Psidium guajava leaf litters.
