Advanced Research of Rhizosphere Microbial Activity

Szili‐Kovács, Tibor; Takács, Tünde

doi:10.3390/agriculture13040911

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…The significance of mycorrhizae, fungi that form a symbiotic relationship with the roots of most plants, becomes more pronounced in the context of global warming and subsequent predicted increases in drought spells, especially in arid soils with high salt concentrations and extreme heat [ 17 ]. In such situations, root-associated fungi hold promise as cost-effective, environmentally friendly, and sustainable biofertilizers [ 18 ].…”

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

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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.

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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

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Interactions Between Arbuscular Mycorrhizal Fungi and Other Microorganisms in the Rhizosphere and Hyphosphere

Kumar,

Kour,

Ali

et al. 2024

Arbuscular Mycorrhizal Fungi and Higher Plants

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The ecosystem of the earth is fascinating and intricate. The interactions that occur in the soil affect its characteristics as a substrate for development and activity of soil microorganisms and plants. The majority of terrestrial plants have a symbiotic, mutually beneficial interaction with the soil fungi known as arbuscular mycorrhizal fungi (AMF). These microorganisms expand the root’s absorption region, which improves the plant’s ability to absorb nutrients. The symbiont gets plant carbohydrates in return for accomplishing its life cycle. Additionally, AMF aids in the adaptation of plants to biotic and abiotic challenges including salt, drought, extremely high or low temperatures, heavy metals, diseases and infections. AMF are constantly interacting with ample variety of microbes, including endo-bacteria, rhizobacteria that encourage plant growth and mycorrhiza helper bacteria, plant parasitic nematodes, fungi and other microbes inhabiting the rhizosphere and hyphosphere. Their interactions may be of utmost significance and might affect agriculture. The present chapter summarizes the main microbial community groups and their interaction with AMF in the rhizosphere and hyphosphere along with the advantageous effects of AMF on plants.

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Advanced Research of Rhizosphere Microbial Activity

Abstract: Soils are generally considered a complex and largely unexplored vital “black box” with thousands of microorganism taxa in their networks [...]

Cited by 2 publications

References 17 publications

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

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

Interactions Between Arbuscular Mycorrhizal Fungi and Other Microorganisms in the Rhizosphere and Hyphosphere

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