Role of Soil Microbes in Sustainable Crop Production

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant–Soil Interactions".

Deadline for manuscript submissions: 30 November 2026 | Viewed by 720

Special Issue Editors


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Guest Editor
Institut Za Krmno Bilje, Kruševac, Serbia
Interests: environmental science; plant growth promotion; soil science; biosystems engineering; soil microbiology; molecular biology; microbial ecology; microorganisms

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Guest Editor
Department of Microbiology, Graphic Era (Deemed to be University), Dehradun 248002, Uttarakhand, India
Interests: plant–microbe interactions; soil microbiology; arbuscular mycorrhizal fungi; environmental microbiology; microbial diversity; plant growth-promoting microbes; biocontrol; strigolactone
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Special Issue Information

Dear Colleagues,

The role of soil microbes offers promising, eco-friendly alternatives to synthetic fertilizers and pesticides for sustainable crop production in addressing global challenges such as soil and ecosystem degradation, climate change, water scarcity, increased pest and disease incidence, nutrient imbalances and intensive agriculture. These interconnected threats—exacerbated by rising temperatures, extreme weather events, soil erosion, biodiversity loss and the need to feed a growing population—demand resilient solutions that maintain or enhance yields while minimizing environmental harm. This approach encompasses the development and application of biofertilizers, biopesticides and microbial inoculants for practical field use. Here, soil microorganisms, including bacteria, fungi, actinomycetes, arbuscular mycorrhizal fungi and other rhizosphere inhabitants, play a pivotal role in enhancing crop productivity while reducing dependence on chemical inputs. These microbes contribute to sustainable crop production and protection through direct and indirect mechanisms. Additionally, they improve soil structure, accelerate organic matter cycling, boost carbon sequestration and enhance resilience to abiotic stresses and biotic pressures, thereby fostering healthier agroecosystems, higher yields with lower environmental impact and reduced greenhouse gas emissions from farming. This Special Issue primarily focuses on recent findings regarding the influence of these factors on microbial communities and their functional roles in nutrient cycling, soil structure formation, direct and indirect growth promotion, soil microbiome dynamics and assembly, enhancement of soil fertility, disease suppression and overall ecosystem resilience. These aspects are crucial for supporting long-term food security, biodiversity conservation and ecosystem stability for future generations, aligning with global goals for regenerative agriculture and climate-smart practices. By harnessing microbial diversity and functions, agriculture can transition toward more sustainable and adaptive systems that mitigate degradation while meeting rising food demands.

Dr. Snežana Anđelković
Dr. Debasis Mitra
Guest Editors

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Keywords

  • plant-microbe interactions
  • rhizosphere and soil microbiome dynamics
  • plant growth-promoting microorganisms
  • biotic and abiotic stress
  • direct and indirect mechanisms
  • biofertilizers and biopesticides
  • biocontrol agents
  • nutrient cycling and disease suppression
  • induced systemic resistance
  • microbial inoculants
  • sustainable agriculture

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Published Papers (1 paper)

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Research

26 pages, 39471 KB  
Article
Arbuscular Mycorrhizal Fungi Modulate Variety-Specific Phosphate Transporter Gene Expression in Aerobic Rice Under Phosphorus-Limited Soil Conditions
by Debasis Mitra, Periyasamy Panneerselvam, Parameswaran Chidambaranathan, Amaresh Kumar Nayak, Anjani Kumar, Upendra Kumar, Priyashree Parida, Abhishek Kumar Sahu, Annamalai Anandan and Pradeep Kumar Das Mohapatra
Plants 2026, 15(11), 1675; https://doi.org/10.3390/plants15111675 - 29 May 2026
Viewed by 86
Abstract
Phosphorus (P) fixation in aerobic rice cultivation severely limits crop productivity. However, the mechanisms by which arbuscular mycorrhizal fungi (AMF) regulate phosphate transporter (OsPT) gene expression across genetically diverse varieties under variable soil P regimes remain poorly understood. A controlled pot [...] Read more.
Phosphorus (P) fixation in aerobic rice cultivation severely limits crop productivity. However, the mechanisms by which arbuscular mycorrhizal fungi (AMF) regulate phosphate transporter (OsPT) gene expression across genetically diverse varieties under variable soil P regimes remain poorly understood. A controlled pot experiment was conducted to examine six aerobic rice genotypes, CR Dhan 201, CR Dhan 204, CR Dhan 205, CR Dhan 207, IR 36 (P-susceptible), and Kasalath IC459373 (P-tolerant), under three soil P levels (low: 2.68 ppm, medium: 8.81 ppm, and high: 12.84 ppm) with and without AMF inoculation. AMF colonization was significantly higher (50.19–63.63%), and sporulation was greater (24.29–30.28 spores per 50 g soil) in CR Dhan 204, CR Dhan 205, and CR Dhan 207 under low and medium soil P. All AMF-inoculated varieties showed 33–55% improvement in root architecture and 14.87–50.22% higher P uptake compared to uninoculated controls under P-deficient conditions. Ten of the 13 phosphate transporter genes (OsPT2, OsPT3, OsPT4, OsPT6, OsPT8, OsPT9, OsPT10, OsPT11, OsPT12, and OsPT13) were upregulated in CR Dhan 207 under low soil P conditions with AMF, and the broadest gene activation profile was observed across all varieties. These findings establish that AMF-mediated regulation of the OsPT gene network is strongly variety-dependent and most pronounced under P-limited conditions, positioning CR Dhan 207 as a priority genotype for mycorrhiza-assisted phosphorus management in aerobic rice systems. Full article
(This article belongs to the Special Issue Role of Soil Microbes in Sustainable Crop Production)
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