干旱地区绿洲典型乔木、灌木和草本物种根瘤菌群落代谢特征的差异

IF 4.2 2区 生物学 Q2 MICROBIOLOGY Journal of Fungi Pub Date : 2024-08-10 DOI:10.3390/jof10080565
Yunxiang Tan, Yunhang Lv, Mengyu Xv, Laiye Qu, Wenjuan Wang
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引用次数: 0

摘要

胡杨、柽柳和槐分别是干旱地区绿洲中典型的乔木、灌木和草本物种。研究这些植物物种根圈真菌群落代谢特征的差异及其与土壤因子的关系,对于在未来环境变化中保护脆弱的干旱绿洲生态系统具有重要意义。在本研究中,我们分别采集了 P. euphratica、T. ramosissima 和 S. alopecuroides 的 18 个根圈土壤样本,探讨了不同植物生命形式根圈真菌代谢特征的差异及其背后的驱动因素。结果表明:(1)土壤理化性质(包括土壤含水量、pH 值等)在不同植物物种之间存在显著差异(p < 0.05)。(2)根瘤菌代谢特征在 S. alopecuroides 和 T. ramosissima 之间存在显著差异(ANOSIM,p < 0.05),这主要是由于对羧基碳的利用率不同造成的。(3)RDA 显示,不同植物物种根瘤菌代谢特征变化的主要驱动因素不同。对 P. euphratica 而言,根圈真菌群落代谢特征变化的主要解释变量是碳氮比(23%)和可利用钾(17.4%);对 T. ramosissima 而言,主要解释变量是土壤有机碳(23.1%)、pH 值(8.6%)和全氮(8.2%);对 S. alopecuroides 而言,主要解释变量是土壤粘土含量(36.6%)和土壤有机碳(12.6%)。总之,干旱绿洲根圈真菌代谢特征的变化主要受土壤因素而非植物生命形式的影响。
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Differences in Metabolic Characteristics of Rhizosphere Fungal Community of Typical Arboreal, Shrubby and Herbaceous Species in Oasis of Arid Region
Populus euphratica, Tamarix ramosissima, and Sophora alopecuroides are, respectively, typical arboreal, shrubby, and herbaceous species in oases of arid regions. It is important to study the difference in metabolic characteristics of the rhizosphere fungal community of these plant species and their relationships with soil factors for the preservation of delicate arid oasis ecosystems with future environmental changes. In this study, we, respectively, collected 18 rhizosphere soil samples of P. euphratica, T. ramosissima, and S. alopecuroides to explore the difference in rhizosphere fungal metabolic characteristics of different plant life forms and their underlying driving factors. The results showed that (1) soil physicochemical properties (including soil water content, pH, etc.) were significantly different among different plant species (p < 0.05). (2) Rhizosphere fungal metabolic characteristics were significantly different between S. alopecuroides and T. ramosissima (ANOSIM, p < 0.05), which was mainly caused by the different utilization of carboxylic carbon. (3) The RDA showed that the main driving factors of the variations in rhizosphere fungal metabolic characteristics were different among different plant species. The main explanatory variables of the variations in the metabolic characteristics of the rhizosphere fungal community were carbon to nitrogen ratio (23%) and available potassium (17.4%) for P. euphratica, while soil organic carbon (23.1%), pH (8.6%), and total nitrogen (8.2%) for T. ramosissima, and soil clay content (36.6%) and soil organic carbon (12.6%) for S. alopecuroides. In conclusion, the variations in rhizosphere fungal metabolic characteristics in arid oases are dominantly affected by soil factors rather than plant life forms.
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来源期刊
Journal of Fungi
Journal of Fungi Medicine-Microbiology (medical)
CiteScore
6.70
自引率
14.90%
发文量
1151
审稿时长
11 weeks
期刊介绍: Journal of Fungi (ISSN 2309-608X) is an international, peer-reviewed scientific open access journal that provides an advanced forum for studies related to pathogenic fungi, fungal biology, and all other aspects of fungal research. The journal publishes reviews, regular research papers, and communications in quarterly issues. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on paper length. Full experimental details must be provided so that the results can be reproduced.
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