探索龙舌兰的丛枝菌根定植:对新兴作物菌根伙伴关系的见解。

IF 3.8 2区 生物学 Q2 MYCOLOGY
Matthias Johannes Salomon, Rachel Anita Burton
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引用次数: 0

摘要

龙舌兰是一种具有巨大商业潜力的新兴作物,在美洲干旱地区越来越多地在其本土分布地区以外种植,本研究探讨了龙舌兰的丛枝菌根(AM)真菌。利用在南澳大利亚不同地点采集的田间土壤接种物,对龙舌兰加车前草作为比较模式宿主进行了温室试验。对带有AM真菌特异性扩增子的定植根进行宏基因组测序,评估AM真菌群落结构。两种植物的Shannon α多样性相似,且均以Glomus属为主。与杉木相比,龙舌兰AM真菌群落较窄,与AM真菌的多样性有关。AM真菌群落组成的Beta多样性分析显示,影响菌种(龙舌兰/车前草)显著(p = 0.0001),而接种位置不显著(p = 0.29)。在墨西哥的研究中发现的龙舌兰酒与Acaulosporaceae家族的AM真菌的联系无法得到证实。这些发现表明龙舌兰对特定的AM真菌物种具有专门的适应性,这可能对在其原生地区以外种植时使用AM真菌进行可持续龙舌兰生产具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Exploring arbuscular mycorrhizal colonization in Agave tequilana: Insights into mycorrhizal partnerships of an emerging crop.

This study explores the arbuscular mycorrhizal (AM) fungi associations of Agave tequilana, an emerging crop with significant commercial potential that is increasingly being grown outside its native distribution in the arid regions of the Americas. A greenhouse experiment was conducted using field-collected soil inoculum from various locations in South Australia to inoculate A. tequilana plus Plantago lanceolata as a comparative model host. Metagenomic sequencing of the colonized roots with AM fungal-specific amplicons assessed the AM fungal community structure. The Shannon alpha diversity was similar between both plant species, and both predominantly associated with the genus Glomus. However, A. tequilana had a narrower AM fungal community compared to P. lanceolata, which was associated with a broader diversity of AM fungi. Beta diversity analysis of the AM fungal community composition revealed that the factor species (agave/plantago) was significant (p = 0.0001), whereas the inoculum location was not (p = 0.29). The association of A. tequilana with AM fungi from the family Acaulosporaceae, as found in Mexican studies, could not be confirmed. These findings suggest a specialized adaptation of A. tequilana to specific AM fungal species, which could have important implications for using AM fungi in sustainable agave production when cultivated outside their native regions.

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来源期刊
Mycorrhiza
Mycorrhiza 生物-真菌学
CiteScore
8.20
自引率
2.60%
发文量
40
审稿时长
6-12 weeks
期刊介绍: Mycorrhiza is an international journal devoted to research into mycorrhizas - the widest symbioses in nature, involving plants and a range of soil fungi world-wide. The scope of Mycorrhiza covers all aspects of research into mycorrhizas, including molecular biology of the plants and fungi, fungal systematics, development and structure of mycorrhizas, and effects on plant physiology, productivity, reproduction and disease resistance. The scope also includes interactions between mycorrhizal fungi and other soil organisms and effects of mycorrhizas on plant biodiversity and ecosystem structure. Mycorrhiza contains original papers, short notes and review articles, along with commentaries and news items. It forms a platform for new concepts and discussions, and is a basis for a truly international forum of mycorrhizologists from all over the world.
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