Myxomycetes on the bark of living Metasequoia glyptostroboides trees and their distribution along a rural–urban gradient

IF 1.5 4区 生物学 Q4 MYCOLOGY
Kazunari TAKAHASHI
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引用次数: 0

Abstract

Myxomycete distribution along urban–rural gradients remains to be studied in detail. The ancient plant Metasequoia glyptostroboides has been mainly planted in urban parks and green areas in Japan, and it provides new habitats for myxomycetes on its growing tree bark. Here, we examined myxomycetes on bark along urbanization gradients, estimated by land-use coverage types. Survey sites were selected at 20 locations in western Japan, where the bark was sampled from 10 trees at each site. The bark samples were cultured in 10 Petri dishes per tree using the moist chamber technique. Myxomycete fruiting colonies occurred in 71% of cultures, and 44 species were identified across surveys. Diderma chondrioderma occurred at all sites, with the next most abundant species being Licea variabilis and Perichaena vermicularis. Twenty-two myxomycete communities ordinated using non-metric multidimensional scaling showed a significant negative correlation with building coverage and bark pH, increasing along the first axis. Relative abundances of Physarum crateriforme and Licea biforis positively correlated with increasing building coverage. Overall, urbanization causes alternation of the myxomycete community structure without diversity loss, and intermediate urbanization diversified species diversity on M. glyptostroboides tree bark.

活体水杉树皮上的粘菌及其在城乡梯度上的分布
关于霉菌在城乡梯度上的分布还有待深入研究。在日本,水杉这种古老的植物主要被种植在城市公园和绿地中,它的树皮为真菌提供了新的栖息地。在此,我们根据土地利用的覆盖类型,对城市化梯度上树皮上的霉菌进行了研究。调查地点选在日本西部的 20 个地点,每个地点采集 10 棵树的树皮样本。树皮样本在每棵树的 10 个培养皿中采用湿室技术进行培养。71%的培养物中都出现了粘菌子实体,在各次调查中发现了 44 个物种。Diderma chondrioderma 出现在所有地点,其次是 Licea variabilis 和 Perichaena vermicularis。使用非度量多维标度法对 22 个菌类群落进行了排序,结果表明,建筑覆盖率和树皮 pH 值与菌类群落呈显著负相关,并沿第一轴线递增。Physarum crateriforme 和 Licea biforis 的相对丰度与建筑物覆盖率的增加呈正相关。总体而言,城市化导致了木霉菌群落结构的交替,但并没有造成多样性的损失,而中间的城市化则使草履虫树皮上的物种多样性多样化。
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来源期刊
Mycoscience
Mycoscience MYCOLOGY-
CiteScore
3.00
自引率
7.10%
发文量
32
审稿时长
3 months
期刊介绍: Mycoscience is the official English-language journal of the Mycological Society of Japan and is issued bimonthly. Mycoscience publishes original research articles and reviews on various topics related to fungi including yeasts and other organisms that have traditionally been studied by mycologists. The research areas covered by Mycoscience extend from such purely scientific fields as systematics, evolution, phylogeny, morphology, ecology, physiology, biochemistry, genetics, and molecular biology, to agricultural, medical, and industrial applications. New and improved applications of well-established mycological techniques and methods are also covered.
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