柳杉皮质黏菌与树木活力的关系。

IF 1.5 4区 生物学 Q4 MYCOLOGY
Kazunari Takahashi, Yu Fukasawa
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引用次数: 1

摘要

活树的树皮为皮质黏菌提供了重要的微生境。然而,黏菌的存在与寄主树木健康之间的关系尚未得到详细的研究。在本研究中,我们旨在研究日本西部山区森林中柳杉(Cryptomeria japonica)树皮黏菌与树木活力的关系。通过对树形和上枝叶密度的目视评价,将树木活力分为4个等级。用湿室培养法对树皮表面黏菌进行了检测。树木活力的下降增加了树皮的pH值,降低了树皮渗出物的电导率。在74棵粳稻中共记录到17种黏菌。黏菌群落结构在健康乔木和不健康乔木之间存在差异,物种多样性随活力的下降而增加。芦苇的相对丰度随植被活力的降低而降低,而副党参的相对丰度随植被活力的降低而增加。结果表明:健康的粳稻树皮上生长着嗜酸黏菌,但随着树皮pH值的变化和活力的下降,酸性减弱,群落结构发生改变;因此,随着树木活力的下降,皮质黏菌多样性增强。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Association between corticolous myxomycetes and tree vitality in Cryptomeria japonica.

The bark of live trees provides an important microhabitat for corticolous myxomycetes. However, the association between the presence of myxomycetes and health of host trees has not been studied in detail. In this study, we aimed to investigate the relationship between tree vitality and myxomycetes on the bark of Cryptomeria japonica trees in a montane forest in western Japan. The vitality of trees was categorized into four grades based on the visual assessment of tree shape and leaf density in the upper branches. Myxomycetes on the bark surface were examined using the moist chamber culture method. A decline in tree vitality increased bark pH and decreased electrical conductivity of the bark exudates. Seventeen myxomycete species were recorded in 74 C. japonica trees. The structure of myxomycete communities varied between healthy and unhealthy trees, and species diversity increased as the vitality declined. The relative abundance of Cribraria confusa decreased as the vitality declined, while that of Paradiacheopsis solitaria increased. The results showed that acidophilic myxomycetes grew on healthy C. japonica bark, but changes in bark pH associated with vitality decline led to the weakening of acidity and shifted the community structure; thus, corticolous myxomycete diversity was enhanced as tree vitality decline.

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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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