Co-inoculations with rhizobia and arbuscular mycorrhizal fungi alters mycorrhizal composition and lead to synergistic growth effects in cowpea that are fungal combination-dependent

Kavadia, A.; Omirou, Michalis; Fasoula, Dionysia A.; Louka, Filippa; Ehaliotis, Constantinos; Ioannides, Ioannis M.

doi:10.1016/j.apsoil.2021.104013

Cited by 30 publications

(10 citation statements)

References 48 publications

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“…amazonicum was observed by coinoculation of AM fungi and PGPRs ( Cely et al, 2016 ). Kavadia et al (2021) evaluated the effect of tripartite symbiotic associations on cowpea plants grown under limited N supply, with or without a symbiotic nitrogen-fixing bacterium, Sinorhizobium meliloti and combinations of three different arbuscular mycorrhizal fungal species namely Dominikia disticha, Claroideoglomus etunicatum and Rhizophagus irregularis in a pot gnotobiotic trial. Inoculation with both AMF and S. meliloti increased above ground biomass production compared to inoculation with AMF only, but the positive stimulation effect depended on the specific AMF partners used.…”

Section: Types Of Biofertilizersmentioning

confidence: 99%

Biofertilizers: An ecofriendly technology for nutrient recycling and environmental sustainability

Kumar

Diksha

Sindhu

et al. 2022

Current Research in Microbial Sciences

221

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Highlights Agriculture plays an important role in a country's economy. In modern intensive agricultural practices, chemical fertilizers and pesticides are applied on large scale to increase crop production in order to meet the nutritional requirements of the ever-increasing world population. However, rapid urbanization with shrinking agricultural lands, dramatic change in climatic conditions and extensive use of agrochemicals in agricultural practices has been found to cause environmental disturbances and public health hazards affecting food security and sustainability in agriculture. Besides this, agriculture soils are continuously losing their quality and physical properties as well as their chemical (imbalance of nutrients) and biological health due to indiscriminate use of agrochemicals. Plant-associated microbes with their plant growth- promoting traits have enormous potential to solve these challenges and play a crucial role in enhancing plant biomass and crop yield under greenhouse and field conditions. The beneficial mechanisms of plant growth improvement include enhanced availability of nutrients (i.e., N, P, K, Zn and S), phytohormone modulation, biocontrol of phytopathogens and amelioration of biotic and abiotic stresses. This plant-microbe interplay is indispensable for sustainable agriculture and these microbes may perform essential role as an ecological engineer to reduce the use of chemical fertilizers. Various steps involved for production of solid-based or liquid biofertilizer formulation include inoculum preparation, addition of cell protectants such as glycerol, lactose, starch, a good carrier material, proper packaging and best delivery methods. In addition, recent developments of formulation include entrapment/microencapsulation, nano-immobilization of microbial bioinoculants and biofilm-based biofertilizers. Thus, inoculation with beneficial microbes has emerged as an innovative eco-friendly technology to feed global population with available resources. This review critically examines the current state-of-art on use of microbial strains as biofertilizers in different crop systems for sustainable agriculture and in maintaining soil fertility and enhancing crop productivity. It is believed that acquisition of advanced knowledge of plant-PGPR interactions, bioengineering of microbial communities to improve the performance of biofertilizers under field conditions, will help in devising strategies for sustainable, environment-friendly and climate smart agricultural technologies to deliver short and long terms solutions for improving crop productivity to feed the world in a more sustainable manner.

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Section: Types Of Biofertilizersmentioning

confidence: 99%

Biofertilizers: An ecofriendly technology for nutrient recycling and environmental sustainability

Kumar

Diksha

Sindhu

et al. 2022

Current Research in Microbial Sciences

221

View full text Add to dashboard Cite

show abstract

“…Hence, researchers are now seeking to either employ effective microorganisms and/or genetically modify crops to contain their genes in order to increase crop yields, which might alter the makeup of microbial communities in the soils and enhance plant growth. For instance, AMF inoculation was found to positively alter mycorrhizal composition, resulting in increased growth of the tropical legume cowpea [ 153 ]. Nonetheless, the difficult first step is to locate elusive AMF in soil microbial communities, followed by complex biological engineering, which entails identifying the genes in AMF that stimulate efficient nitrogen fixation and then engineering them into plants in a way that the plants can use to produce the same traits [ 154 ].…”

Section: Amf and Tropical Legumes For Sustainable Agriculture: Challe...mentioning

confidence: 99%

Arbuscular Mycorrhizal Symbiosis: A Strategy for Mitigating the Impacts of Climate Change on Tropical Legume Crops

Loo

Chua

Mazumdar

et al. 2022

Plants

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Climate change is likely to have severe impacts on food security in the topics as these regions of the world have both the highest human populations and narrower climatic niches, which reduce the diversity of suitable crops. Legume crops are of particular importance to food security, supplying dietary protein for humans both directly and in their use for feed and forage. Other than the rhizobia associated with legumes, soil microbes, in particular arbuscular mycorrhizal fungi (AMF), can mitigate the effects of biotic and abiotic stresses, offering an important complementary measure to protect crop yields. This review presents current knowledge on AMF, highlights their beneficial role, and explores the potential for application of AMF in mitigating abiotic and biotic challenges for tropical legumes. Due to the relatively little study on tropical legume species compared to their temperate growing counterparts, much further research is needed to determine how similar AMF–plant interactions are in tropical legumes, which AMF species are optimal for agricultural deployment and especially to identify anaerobic AMF species that could be used to mitigate flood stress in tropical legume crop farming. These opportunities for research also require international cooperation and support, to realize the promise of tropical legume crops to contribute to future food security.

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“…Meanwhile, AMF colonization improves the absorption and utilization of nitrogen, phosphorus, and other nutrients in the soil by plants and signi cantly promotes the plants' growth (Xie et al 2021). Kavadia et al (2021) found that inoculation with the Rhizophagus irregularis signi cantly increased the biomass in aerial parts of Vigna unguiculata. In addition, AMF can also improve plant resistance to various environmental stresses, including salt stress, heavy metal stress, drought stress, and temperature stress, by promoting the physical and chemical properties of soil (Millar and As an important part of the terrestrial ecosystem, phytophagous insects easily form a complex interaction with the AMF and plants.…”

Section: Introductionmentioning

confidence: 96%

Deciphering the mechanism about the mycorrhizal-induced resistance and susceptibility in Populus alba × P. berolinensis seedlings from the perspective of gypsy moth larvae

Tan

Jiang

2022

Preprint

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The mechanism of arbuscular mycorrhizal fungi (AMF) affecting insect resistance in plants is well depicted at the physiological level. However, there is a lack of systematic research from the perspective of insects. In this study, we used AMF-Populus alba × P. berolinensis seedlings that could either increase or decrease the resistance to gypsy moth larvae, to elucidate the mechanism of mycorrhizal-induced resistance/susceptibility at the larval microbial and metabolic levels. The results showed that the larval growth was significantly inhibited in the AMF, Glomus mossae (GM) colonized seedlings, whereas enhanced in the Glomus intraradices (GI) colonized seedlings. Gut microbiome analysis elucidated that GM inoculation reduced the probiotic abundance (e.g., Staphylococcus, Lactobacillus, Akkermansia) in gypsy moth larvae and inhibited the detoxification and metabolic functions of the gut microbiota. However, GI inoculation improved the gut environment in gypsy moth larvae by reducing the abundance of pathogenic bacteria (Chryseobacterium, Fusobacterium, and Neisseria) and activating specific metabolic pathways (e.g., energy metabolism). Non-targeted metabolomics analysis further revealed that GM inoculation triggers a metabolic disorder in the larval fat body, accompanied by the down-regulation of metabolic pathways involved in detoxification and energy production. The levels of differentially accumulated metabolites related to amino acid synthesis and metabolism and exogenous toxin metabolism pathways were significantly increased in the GI group. Taken together, disturbance in the gut microbial function and fat body metabolism in gypsy moth larvae led to the induction of mycorrhizal-induced resistance after GM inoculation, and GI-induced susceptibility involved in the improvement of gut environment and energy metabolism.

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Co-inoculations with rhizobia and arbuscular mycorrhizal fungi alters mycorrhizal composition and lead to synergistic growth effects in cowpea that are fungal combination-dependent

Cited by 30 publications

References 48 publications

Biofertilizers: An ecofriendly technology for nutrient recycling and environmental sustainability

Biofertilizers: An ecofriendly technology for nutrient recycling and environmental sustainability

Arbuscular Mycorrhizal Symbiosis: A Strategy for Mitigating the Impacts of Climate Change on Tropical Legume Crops

Deciphering the mechanism about the mycorrhizal-induced resistance and susceptibility in Populus alba × P. berolinensis seedlings from the perspective of gypsy moth larvae

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