New Zealand Journal of Agricultural Research, Год журнала: 2024, Номер unknown, С. 1 - 23
Опубликована: Сен. 5, 2024
Язык: Английский
Frontiers in Microbiology, Год журнала: 2024, Номер 15
Опубликована: Май 21, 2024
Fungi are an integral part of the nitrogen and phosphorus cycling in trophic networks, as they participate biomass decomposition facilitate plant nutrition through root symbioses. Nutrient content varies considerably between main fungal habitats, such soil, litter or decomposing dead wood, but there also large differences within habitats. While some soils heavily loaded with N, others limited by N P. One way which nutrient availability can be reflected fungi is their biomass. In this study, we determined C, P (in dry mass) fruiting bodies 214 species to inspect how phylogeny membership ecological guilds (soil saprotrophs, wood ectomycorrhizal fungi) affect The C (415 ± 25 mg g –1 ) showed little variation (324–494 ), while range (46 20 (5.5 3.0 contents was one order magnitude (8–103 1.0–18.9 , respectively). Importantly, were significantly higher soil saprotrophic compared fungi. average C/N ratio 11.2, values exceeding 40 recorded for living on typically characterized low content. mycelium a significant phylogenetic signal, being relatively genera A strong correlation found biomass, N-containing cell wall biopolymer—chitin only weak significance. macronutrients influenced life style phylogeny.
Язык: Английский
Процитировано
1
Molecular Ecology, Год журнала: 2024, Номер 33(15)
Опубликована: Июнь 26, 2024
Abstract Rocky habitats, globally distributed ecosystems, harbour diverse biota, including numerous endemic and endangered species. Vascular plants thriving in these environments face challenging abiotic conditions, requiring morphological physiological adaptations. Their engagement with the surrounding microbiomes is, however, equally vital for their adaptation, fitness, long‐term survival. Nevertheless, there remains a lack of understanding this complex interplay within fascinating biotic ecosystem. Using microscopic observations metabarcoding analyses, we examined fungal abundance diversity root system rock‐dwelling West Carpathian shrub, Daphne arbuscula (Thymelaeaceae). We explored diversification root‐associated communities relation to microclimatic variations across studied sites. revealed extensive colonization roots by taxonomic groups attributed different ecological guilds, predominantly plant pathogens, dark septate endophytes (DSE), arbuscular mycorrhizal fungi (AMF). Notably, differences composition guilds emerged between colder warmer microenvironments. Apart from omnipresent AMF, sites exhibited prevalence while were characterized dominance DSE. This mycobiome diversification, most likely triggered environment, suggests that D. populations areas may be more vulnerable diseases, particularly context global climate change.
Язык: Английский
Процитировано
1
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Апрель 29, 2024
Abstract Ridomil Gold SL (45.3% a.i. mefenoxam) is a widely used chemical fungicide for the control of oomycetes. However, its impact on fungal communities remains unexplored. Therefore, goal this study was to examine effects mefenoxam temporal dynamics taxonomic and functional diversities during carrot cultivation under four treatment groups: application with without Pythium inoculation, untreated groups inoculation. Our in vitro sensitivity assay showed that maximum recommended concentration mefenoxam, 0.24 ppm, did not suppress mycelial growth P. irregulare . At 100 only reduced by 11.4%, indicating isolate resistant mefenoxam. MiSeq sequencing data revealed transient variations among treatments 2 weeks post-treatment. Mortierella dominated community mefenoxam- combination treatment, as confirmed through PCR using our newly designed -specific primers. Conversely, had adverse Penicillium , Trichoderma Fusarium, decrease overall alpha diversity. these compositional changes gradually reverted those observed 12th week. The predicted ecological functions all shifted, leading symbiotrophs plant pathogen groups. Moreover, community-level physiological profiling approach, utilizing 96-well Biolog FF microplates, discernible utilization 95 diverse carbon sources treatments. Notably, arbutin, l -arabinose, Tween 80, succinamic acid demonstrated strong positive association findings demonstrate single at rate triggers substantial shifts soil community. Considering impact, conventional agricultural practice repeated likely exert considerable ecosystem may affect sustainability.
Язык: Английский
Процитировано
1
Phytobiomes Journal, Год журнала: 2024, Номер unknown
Опубликована: Сен. 30, 2024
Carrot cavity spot (CCS) has conventionally been managed with fungicides. However, fungicide resistance, their potential risks to human health and the environment, increasing demand for organic produce necessitate exploration of biofungicides as alternatives. In this study, we evaluated varying concentrations SoilGard (Certis USA, Columbia, MD), a Trichoderma virens-based biofungicide, efficacy against different CCS-causing Pythium species in vitro. Additionally, its effects on taxonomic functional diversities soil fungal communities were studied vivo greenhouse. To our knowledge, is first study reporting SoilGard's effectiveness CCS, emphasis an alternative fungicide-resistant isolates. Our vitro revealed that was significantly dose-dependent isolate-specific, thus highlighting importance selecting application rate target isolate. Analysis using Illumina MiSeq sequencing exerted significant, albeit temporary, effect community structure. It negatively impacted co-occurrence network complexity alpha diversity carrot-cultivated soil, whereas bare remained largely unaffected, explaining why preplant applications may yield better results. showed carrot cultivation without enhanced diversity, which more pronounced late season, possibly due root-associated exudates. sheds light how complex interactions within can be by beneficial/pathogenic microbes.
Язык: Английский
Процитировано
1
New Zealand Journal of Agricultural Research, Год журнала: 2024, Номер unknown, С. 1 - 23
Опубликована: Сен. 5, 2024
Язык: Английский
Процитировано
0