Distribution and ecology of dictyostelids in China

Liu, Pu; Zhang, Shunhang; Zou, Yue; Li, Zhuang; Stephenson, Steven L.; Yu, Li

doi:10.1016/j.fbr.2020.07.003

Cited by 7 publications

(6 citation statements)

References 38 publications

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“…As such, mixed broadleaf-conifer forest soil on Changbai Mountain had the highest species richness, which differs from the data obtained by Liu et al ( 70 ). However, Liu et al ( 70 ) discussed dictyostelid diversity for all of China, whereas the present study investigated only Changbai Mountain, which occurs at a higher latitude than most other areas of China. Liu et al ( 25 ) and Romeralo and Lado ( 72 ) discussed some species of dictyostelids that are associated with different types of forests.…”

Section: Discussioncontrasting

confidence: 99%

“…Liu et al ( 70 ) reported that broadleaf forests are characterized by the highest number of species of dictyostelids known to occur in China, but the results of this study and a previous study ( 21 – 23 ) indicated that the maximum number of species of dictyostelids on Changbai Mountain occurs in mixed broadleaf-conifer forests (Table S5; Fig. 15 ).…”

Section: Discussioncontrasting

confidence: 83%

“…13 ). In previous research, these four genera shared in common have encompassed more than 85% species the species recorded from China, and this proportion has increased as a result of the data reported herein ( 70 ). The absence of Raperostelium and Hagiwarea on Changbai Mountain is interesting, because members of these two represent a quarter of all dictyostelids known in Taiwan and 11% of those known in all of China.…”

Section: Discussionsupporting

confidence: 56%

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Diversity of Dictyostelid Cellular Slime Molds, Including Two Species New to Science, in Forest Soils of Changbai Mountain, China

et al. 2022

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Section: Discussioncontrasting

confidence: 99%

Section: Discussioncontrasting

confidence: 83%

Section: Discussionsupporting

confidence: 56%

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Diversity of Dictyostelid Cellular Slime Molds, Including Two Species New to Science, in Forest Soils of Changbai Mountain, China

et al. 2022

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“…Herein, we review the history of Chinese research on dictyostelids in light of the recent wave of research, with an increase in sample collection since 2010 (Figure 1B). There have been 58 species and varieties reported, which makes China one of the world's biodiversity hotspots [19][20][21][22][23][24]. In fact, most of these species Traditional morphology-based taxonomy of dictyostelids has been replaced by a molecular phylogeny.…”

Section: Introductionmentioning

confidence: 99%

Diversity of Cellular Slime Molds (Dictyostelids) in the Fanjing Mountain Nature Reserve and Geographical Distribution Comparisons with Other Representative Nature Reserves in Different Climate Zones of China

Zhang,

Li,

Zhang

et al. 2024

Microorganisms

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Protected areas are widely considered an essential strategy for biodiversity conservation. Dictyostelids are unique protists known to have important ecological functions in promoting soil and plant health through their top-down regulation of ecosystem processes, such as decomposition, that involve bacterial populations. But the relationship between dictyostelid diversity within protected areas remains poorly understood, especially on a large scale. Herein, we report data on the distribution of dictyostelids, identified with ITS + SSU rRNA molecular and morphology-based taxonomy, from soil samples collected in the Fanjing Mountain protected area of Guizhou Province, Southwest China. We compared the biodiversity data of dictyostelids in Fanjing Mountain with similar data from previously sampled sites in four other protected areas, including Changbai Mountain (CB), Gushan Mountain (GS), Baiyun Mountain (BY), and Qinghai–Tibet Plateau (QT) in China. We identified four species of dictyostelids belonging to three genera (Dictyostelium, Heterostelium, and Polysphondylium) and herein provide information on the taxonomy of these species. Two species (Heterostelium pallidum and Dictyostelium purpureum) are common and widely distributed throughout the world, but one species (Polysphondylium fuscans) was new to China. Our data indicate that there is no distinguishable significant correlation between the dictyostelid species studied and environmental factors. Overall, the similarity index between Baiyun Mountain in Henan Province and Fanjing Mountain in Guizhou Province, located at approximately the same longitude, is the highest, and the Jaccard similarity coefficients (Jaccard index) of family, genus, and species are 100%, 100%, and 12.5%, respectively. From a species perspective, species in the same climate zone are not closely related, but obvious geographical distributions are evident in different climate zones. This preliminary study provided evidence of the ecological adaptation of dictyostelids to different biological niches.

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“…Although domestic and foreign scholars have conducted resource surveys on dictyostelids in some regions of the world, there are still large areas where no research has been conducted. Thus far, 55 taxa of dictyostelids (54 species and 1 variety) in two orders and four families have been recorded from 25 provinces in China ( 21 ). However, there are only three species ( Dictyostelium macrocephalum , Dictyostelium implicatum , and Dictyostelium crassicaule ) known from Guizhou Province ( 22 ), and there are no records from Gansu Province.…”

Section: Introductionmentioning

confidence: 99%

Environmental factors influencing the diversity and distribution of dictyostelid cellular slime molds in forest and farmland soils of western China

Zhang,

Yang,

Zhao

et al. 2023

Microbiol Spectr

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Dictyostelid cellular slime molds (dictyostelids) are one of the major groups of eukaryotic amoeboid protists occurring in the soil microhabitat. The past few decades have witnessed an unprecedented interest in the ecology of dictyostelids, stimulated in part by the hidden soil protist diversity that has long been overlooked. However, a better understanding of the impact of various environmental factors on the biodiversity of dictyostelids is needed to understand the critical functional role of these organisms in the soil ecosystem. Species diversity of dictyostelids has been surveyed in some provinces of China, but little data exist for Gansu and Guizhou Provinces in western China. In this paper, we report data on the distribution and occurrence of dictyostelids in the soils of these two provinces. Samples were collected from 13 localities in central Gansu and the southeastern and southcentral portions of Guizhou Province. Eleven species of dictyostelids were recovered from 99 samples of soil. Six new records of dictyostelids are reported from Gansu Province and six species from Guizhou Province, respectively. Polysphondylium violaceum is a common species in both regions, while Dictyostelium sphaerocephalum and Dictyostelium mucoroides are widely distributed in Lanzhou, Gansu Province. The total number of species (seven) and the number of endemic species (three) of dictyostelids in mixed forests were higher than those in other forest types. Redundancy analysis indicated that soil pH, temperature, and elevation were the primary factors that affected dictyostelid occurrence. Nonmetric multidimensional scaling and principal component analysis indicated that the dictyostelid communities were significantly different between Gansu and Guizhou Provinces. IMPORTANCE Soil protists are an essential yet seriously understudied component of the soil microbiome. In this study, 11 new records of dictyostelids belonging to 2 orders, 3 families, and 4 genera were identified from 99 soil samples collected from different elevations and habitats in central Gansu and the southeastern and southcentral portions of Guizhou Province, China. We found that dictyostelid communities were significantly different between Gansu and Guizhou Provinces, apparently in response to different environmental factors. Moreover, dictyostelids were found to have the highest species diversity in mixed forests. Soil pH, temperature, and elevation were determined to be the primary factors that affect the distribution and occurrence of dictyostelids in Guizhou and Gansu Provinces. This work supplements the survey data available for dictyostelids elsewhere in China. These new findings have significant implications for our understanding of the diversity of soil microorganisms.

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Distribution and ecology of dictyostelids in China

Cited by 7 publications

References 38 publications

Diversity of Dictyostelid Cellular Slime Molds, Including Two Species New to Science, in Forest Soils of Changbai Mountain, China

Diversity of Dictyostelid Cellular Slime Molds, Including Two Species New to Science, in Forest Soils of Changbai Mountain, China

Diversity of Cellular Slime Molds (Dictyostelids) in the Fanjing Mountain Nature Reserve and Geographical Distribution Comparisons with Other Representative Nature Reserves in Different Climate Zones of China

Environmental factors influencing the diversity and distribution of dictyostelid cellular slime molds in forest and farmland soils of western China

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