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5 results for “fungal root endophytes”
Fungal root endophytes colonization of moist meadow forbs in 2017 at Niwot Ridge LTER site
Fungal root endophytes play an important role in plant nutrition, helping plants acquire nutrients in exchange for photosynthates. We sought to characterize the progression of root colonization by arbuscular mycorrhizal fungi (AMF), dark septate endophytes (DSE), and fine root endophytes (FRE) over an alpine growing season, and to understand the role of the host plant and environment in driving colonization levels. We sampled four forbs on a regular schedule from June 26th – September 11th from a moist meadow (3535 m.a.s.l) on Niwot Ridge, Rocky Mountain Front Range, Colorado, USA. We quantified the degree of root colonization by storage structures, exchange structures, and hyphae of all three groups of fungi. AMF and FRE percent colonization fluctuated significantly over time, while DSE did not. All AMF structures changed over time, and the degree of change in vesicles differed by plant species. FRE hyphae, AMF arbuscules and AMF vesicles peaked late in the season as plants produced seeds. AMF hyphae levels started high, decreased, and then increased within 20 days, highlighting the dynamic nature of plant-fungal interactions. Overall, our results show that AMF and FRE, not DSE, root colonization rapidly changes over the course of a growing season and these changes are driven by plant phenology and seasonal changes in the environment.
Fungal root-endophytes influence plants in a species-specific manner that depends on plant's growth stage
The mycobiome (fungal microbiome) influences plants— from seed germination to full maturation. While many studies on fungal-plant interaction studies have focused on known mutualistic and pathogenic fungi, the functional role of ubiquitous endophytic fungi remains little explored. We examined how root-inhabiting fungi (endophytes) influence range expanding plant species. We isolated endophytes from three European intra-continental range-expanders and three congenerics that are native both in the range-expander's original (southern Europe) and new (northern Europe) range. To standardize our collection, endophytes were obtained from all six plant species growing under controlled conditions in northern (new range of the range-expander) and southern (native range of the range-expander) soils. We cultivated, molecularly identified and tested the effects of all isolates on seed germination, and growth of seedlings and older plants. Most of the 34 isolates could not be functionally characterized based on their taxonomic identity and literature information on functions. Endophytes affected plant growth in a plant species-endophyte specific manner, but overall differed between range-expanders and natives. While endophytes reduced germination and growth of range-expanders compared to natives, they reduced seedling growth of natives more than of range-expanders. Synthesis: We conclude that endophytic fungi have a direct effect on plant growth in a plant growth stage-dependent manner. While these effects differed between range expanders and natives, the effect strength and significance varied among the plant genera included in the present study. Nevertheless, endophytes likely influence establishment of newly arriving plants and influence vegetation dynamics
A fungal endophyte induces local cell-wall mediated resistance in wheat roots against take-all disease
<p>Datasets to accompany 'A fungal endophyte induces local cell-wall mediated resistance in wheat roots against take-all disease', <span>DOI: 10.3389/fpls.2024.1444271.</span></p> <p><span>These are datasheet 1 and table S2.</span></p> <p> </p>
Fungal root-endophytes influence plants in a species-specific manner that depends on plant's growth stage
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A nucleoside signal generated by a fungal endophyte regulates host cell death and promotes root colonization
GEO Series GSE209761. Arabidopsis thaliana. 12 samples. Type: Expression profiling by high throughput sequencing.
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