Multitrophic Reciprocity of AMF with Plants and Other Soil Microbes in Relation to Biotic Stress

Sharma, Supriya; Bhuvaneswari, V.; Saikia, Bandana; Karthik, R.; Rajeshwaran, B.; Naveena, P. Shree; Gayithri, Mateti

doi:10.1007/978-981-99-0030-5_13

Cited by 2 publications

(1 citation statement)

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“…They form mutualistic associations with over 80% of all vascular plants, affecting plant fitness and competitive interactions (Aguégué et al, 2023). They are well known for assisting host plants with phosphorus uptake (Smith and Read, 2008;Lu et al, 2023), but can also provide other benefits such as protection from pathogens (Cardoso and Kuyper, 2006;Sharma et al, 2023), assistance with the uptake of other nutrients such as nitrogen and copper, and improved water relations (Smith and Read, 2008;Sene et al, 2010;Lu et al, 2023;Sharma et al, 2023). AMF hyphae also play a role in the formation and structural stability of soil aggregates (Zhang et al, 2023) and contribute to the composition of plant community structures (Chen et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Reducing mineral fertilizer use for sustainable agriculture: The influence of seed coating with arbuscular mycorrhizal fungal spores and Leifsonia bacteria on maize (Zea mays L.) and sorghum (Sorghum bicolor (L.) Moench) production

Godar,

Mansour,

Ousmane

et al. 2023

J. Agric. Biotech. Sustain. Dev.

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Arbuscular mycorrhizal fungi (AMF) and plant growth promoting rhizobacteria (PGPR) have been proposed as biofertilizers for sustainable agriculture. Nevertheless, many of the delivery approaches for these beneficial microorganisms have the disadvantage of limited applicability. The study aim was to evaluate the fertilizing potential of seed coating with microbial fertilizers on growth and yield parameters of maize and sorghum. Field trials were conducted using a seed coating technique where AMF spores (Rhizophagus fasciculatus and Rhizophagus aggregatus) and PGPR (Leifsonia sp.) were applied around the seeds of maize (Early-Thai) and sorghum (Nganda). Experiments included the following treatments: Coated seed, coated seed in combination with mineral fertilizer (NPK, 15-15-15) at 75 kg/ha, uncoated seed without fertilizer and NPK fertilizer applied at 150 kg/ha. Data were collected on root AMF colonization, plant growth, yield parameters and soil AMF spore richness and density. Research in this area suggests that there is little likelihood of a significant response from seed coating, despite high root AMF colonization rates. However, plants treated with microbial fertilizer in combination with 50% NPK fertilizer achieved significantly higher final heights and yields for both maize and sorghum. Plant production achieved reached that of NPK fertilizer at 150 kg/ha, suggesting that in our case of poor soils, the application of microbial fertilizer alone is not sufficient to achieve significant improvements in plant production. We also found that neither microbial fertilizer, nor mineral treatments had any effect on spore morphotype richness. However, seed coating further increased the spore density.

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