Root‐associated fungi and carbon storage in Arctic ecosystems

Robinson, Clare H.; Wookey, Philip A.; Parker, Thomas C.

doi:10.1111/nph.16443

Cited by 5 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fungi are essential components of plant-associated microbiota, and play vital roles in regulating plant healthy, resistance to environmental stress, plant community dynamics and therefore ecosystem functioning ( Robinson et al., 2020 ; Trivedi et al., 2020 ). The rapid development of DNA sequencing techniques has heightened attention to plant root-associated fungi in recent years ( Qian et al., 2019 ; Toju et al., 2019 ; Li et al., 2021 ; Sweeney et al., 2021 ; Wang et al., 2021 ; Miyamoto et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Temporal variations in root-associated fungal communities of Potaninia mongolica, an endangered relict shrub species in the semi-arid desert of Northwest China

Wang

Maitra

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

The semi-arid region of the Western Ordos plateau in Inner Mongolia, China, is home to a critically endangered shrub species, Potaninia mongolica, which originates from ancient Mediterranean regions. Root-associated microbiomes play important roles in plant nutrition, productivity, and resistance to environmental stress particularly in the harsh desert environment; however, the succession of root-associated fungi during the growth stages of P. mongolica is still unclear. This study aimed to examine root-associated fungal communities of this relict plant species across three seasons (spring, summer and autumn) using root sampling and Illumina Miseq sequencing of internal transcribed spacer 2 (ITS 2) region to target fungi. The analysis detected 698 fungal OTUs in association with P. mongolica roots, and the fungal richness increased significantly from spring to summer and autumn. Eurotiales, Hypocreales, Chaetothyriales, Pleosporales, Helotiales, Agaricales and Xylariales were the dominant fungal orders. Fungal community composition was significantly different between the three seasons, and the fungal taxa at various levels showed biased distribution and preferences. Stochastic processes predominantly drove community assembly of fungi in spring while deterministic processes acted more in the later seasons. The findings revealed the temporal dynamics of root-associated fungal communities of P. mongolica, which may enhance our understanding of biodiversity and changes along with seasonal alteration in the desert, and predict the response of fungal community to future global changes.

show abstract

Section: Introductionmentioning

confidence: 99%

Temporal variations in root-associated fungal communities of Potaninia mongolica, an endangered relict shrub species in the semi-arid desert of Northwest China

Wang

Maitra

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Additionally, these fungi contribute to the plant’s resistance against drought, salinity [ 13 ], and heavy metal toxicity [ 14 ], by enhancing water and nutrient absorption and facilitating the accumulation of osmolytes and antioxidant compounds [ 7 ]. Fungi constitute integral elements within the microbiota associated with plants, assuming critical functions in the modulation of plant health, resilience to environmental stressors, dynamics of plant communities, and, consequently, the overall functioning of ecosystems [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings

Yaish,

Al-Busaidi,

Glick

et al. 2024

Biology

View full text Add to dashboard Cite

Salinity severely affects the health and productivity of plants, with root-associated microbes, including fungi, potentially playing a crucial role in mitigating this effect and promoting plant health. This study employed metagenomics to investigate differences in the structures of the epiphyte mycobiomes in the rhizospheres of seedlings of two distinct date palm cultivars with contrasting salinity tolerances, the susceptible cultivar, ‘Zabad’, and the tolerant cultivar, ‘Umsila’. Next-generation sequencing (NGS) of the internal transcribed spacer (ITS) rRNA was utilized as a DNA barcoding tool. The sequencing of 12 mycobiome libraries yielded 905,198 raw sequences of 268,829 high-quality reads that coded for 135 unique and annotatable operational taxonomic units (OTUs). An OTU analysis revealed differences in the rhizofungal community structures between the treatments regardless of genotype, and non-metric dimensional scaling (N-MDS) analyses demonstrated distinct separations between the cultivars under saline stress. However, these differences were not detected under the control environmental conditions, i.e., no salinity. The rhizospheric fungal community included four phyla (Ascomycota, Basidiomycota, Chytridiomycota, and Mucoromycota), with differences in the abundances of Aspergillus, Clonostachys, and Fusarium genera in response to salinity, regardless of the genotype. Differential pairwise comparisons showed that Fusarium falciforme-solani and Aspergillus sydowii-versicolor increased in abundance under saline conditions, providing potential future in vitro isolation guidelines for plant growth-promoting fungi. This study highlights the intricate dynamics of the rhizosphere microbial communities in date palms and their responses to salt stress. Additionally, we found no support for the hypothesis that indigenous epiphytic fungal communities are significantly involved in salinity tolerance in date palms.

show abstract

“…RAF communities are key components in ecosystem functioning, influencing plant growth by modifying the quality and flow of nutrients and water from soil to plants (Wardle et al., 2004), and contributing to soil carbon storage (Clemmensen et al., 2013). The roles of RAF in nitrogen cycling and plant nutrition are particularly important in arctic ecosystems, where nitrogen limitation is a common feature of soils (Hobbie & Hobbie, 2006; Robinson et al., 2020). Because arctic ecosystems are among the most climate‐sensitive ecosystems on Earth, they are likely to experience substantial landscape‐level changes, resulting in the release of carbon stores from the soil, thus creating a positive feedback to climate change (Jansson & Hofmockel, 2020).…”

Section: Introductionmentioning

confidence: 99%

Experimental evidence that root‐associated fungi improve plant growth at high altitude

Burg,

Ovaskainen,

Furneaux

et al. 2024

Molecular Ecology

View full text Add to dashboard Cite

Unravelling how species communities change along environmental gradients requires a dual understanding: the direct responses of the species to their abiotic surroundings and the indirect variation of these responses through biotic interactions. Here, we focus on the interactive relationships between plants and their symbiotic root‐associated fungi (RAF) along stressful abiotic gradients. We investigate whether variations in RAF community composition along altitudinal gradients influence plant growth at high altitudes, where both plants and fungi face harsher abiotic conditions. We established a translocation experiment between pairs of Bistorta vivipara populations across altitudinal gradients. To separate the impact of shifting fungal communities from the overall influence of changing abiotic conditions, we used a root barrier to prevent new colonization by RAF following translocation. To characterize the RAF communities, we applied DNA barcoding to the root samples. Through the utilization of joint species distribution modelling, we assessed the relationship between changes in plant functional traits resulting from experimental treatments and the corresponding changes in the RAF communities. Our findings indicate that RAF communities influence plant responses to stressful abiotic conditions. Plants translocated from low to high altitudes grew more when they were able to associate with the resident high‐altitude RAF compared to those plants that were not allowed to associate with the resident RAF. We conclude that interactions with RAF impact how plants respond to stressful abiotic conditions. Our results provide experimental support that interactions with RAF improve plant stress tolerance to altitudinal stressors such as colder temperatures and less nutrient availability.

show abstract

Root‐associated fungi and carbon storage in Arctic ecosystems

Abstract: This article is a Commentary on Hewitt et al. (2020), 226: 126–141.

Cited by 5 publications

References 23 publications

Temporal variations in root-associated fungal communities of Potaninia mongolica, an endangered relict shrub species in the semi-arid desert of Northwest China

Temporal variations in root-associated fungal communities of Potaninia mongolica, an endangered relict shrub species in the semi-arid desert of Northwest China

The Effects of Salinity and Genotype on the Rhizospheric Mycobiomes in Date Palm Seedlings

Experimental evidence that root‐associated fungi improve plant growth at high altitude

Contact Info

Product

Resources

About