A trade-off between space exploration and mobilization of organic phosphorus through associated microbiomes enables niche differentiation of arbuscular mycorrhizal fungi on the same root

Zhou, Jiachao; Kuyper, Thomas W.; Feng, Gu

doi:10.1007/s11427-022-2261-1

Cited by 7 publications

(1 citation statement)

References 67 publications

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“…These hyphosphere microbiomes differ among species of AM fungi (Zhou et al 2020) but can also differ among isolates of the same species (Wang et al 2022a). Zhou et al (2023) noted that these different hyphosphere microbiomes associated with different species of AM fungi allowed niche differentiation, as AM fungal species that were weaker colonisers of the soil environment were associated with bacteria that were more efficient in desorbing and mineralising P from phytate than more efficient soil-colonising AM fungi. Also, the study of intraspecific variation of Rhizophagus irregularis showed that one isolate produced larger amounts of extraradical mycelium, but that ability was traded off against a more efficient hyphosphere microbiome (Wang et al 2022a).…”

Section: Hyphosphere Microbiomementioning

confidence: 99%

Arbuscular mycorrhiza: advances and retreats in our understanding of the ecological functioning of the mother of all root symbioses

Kuyper

Jansa

2023

Plant Soil

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Background Arbuscular mycorrhizal (AM) symbiosis has been referred to as the mother of all plant root symbioses as it predated the evolution of plant roots. The AM research is a multidisciplinary field at the intersection of soil science, mycology, and botany. However, in recent decades the nature and properties of soils, in which the AM symbiosis develops and functions, have received less attention than desired. Scope In this review we discuss a number of recent developments in AM research. We particularly cover the role of AM symbiosis in acquisition of phosphorus, nitrogen, heavy metals and metalloids, as well as water by plants from soil; mycorrhizal effects on plant nutritional stoichiometry and on the carbon cycle; the hyphosphere microbiome; so-called facultative mycorrhizal plants; explanations for lack of mycorrhizal benefit; common mycorrhizal networks; and arbuscular and ectomycorrhizal ecosystems. Conclusion We reflect on what has previously been described as mycorrhizal ‘dogmas’. We conclude that these are in fact generalisations on the AM symbiosis that are well supported by multiple studies, while admitting that there potentially is a geographical bias in mycorrhizal research that developed in temperate and boreal regions, and that research in other ecosystems might uncover a greater diversity of viable mycorrhizal and non-mycorrhizal strategies than currently acknowledged. We also note an increasing tendency to overinterpret data, which may lead to stagnation of some research fields due to lack of experiments designed to test the mechanistic basis of processes rather than cumulating descriptive studies and correlative evidences.

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