Arbuscular mycorrhiza under water — Carbon‒phosphorus exchange between rice and arbuscular mycorrhizal fungi under different flooding regimes

Bao, Xiaozhe; Wang, Yutao; Olsson, Pål Axel

doi:10.1016/j.soilbio.2018.11.020

Cited by 53 publications

(38 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reduction of mycorrhizal P delivery to rice should partially account for the decrease of MGR under flooding vs. non-flooding conditions, especially considering that the direct P acquisition pathway in mycorrhizal rice plants was suppressed here and in a previous study (Bao et al, 2019). Flooding decreased the mycorrhizal P benefit of rice plants, as indicated by the significant decrease of MPR under flooding conditions in both Exps.…”

Section: C-p Exchange Between Rice and Arbuscular Mycorrhizal Fungi Under Different Flooding And Shading Regimessupporting

confidence: 51%

“…Most studies reported that AMF increased rice plant biomass, grain yield, and P uptake under flooding conditions (Secilia and Bagyaraj, 1994;Hirata, 1996, 1997;Gewaily, 2019). By contrast, several others found that AMF inoculation resulted in a decrease in the amount of rice dry matter under flooded conditions (Solaiman and Hirata, 1995;Cosme et al, 2011;Bao et al, 2019). These studies provide important information about the ecological functions of AMF in paddy wetlands.…”

Section: Introductionmentioning

confidence: 92%

“…These studies provide important information about the ecological functions of AMF in paddy wetlands. However, their inconsistent results regarding the MGR of rice plants–which should be closely related to the complex environment of paddy fields and the different experimental conditions of the studies–pose an obstacle to a comprehensive understanding of the application prospects of AMF in rice-production systems ( Xu et al, 2018 ; Bao et al, 2019 ). They also highlight the need to consider important influencing factors while assessing the functional role of AMF in paddy soils.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Arbuscular Mycorrhizal Fungi on Rice Growth Under Different Flooding and Shading Regimes

Wang

Bao

2021

Front. Microbiol.

Self Cite

View full text Add to dashboard Cite

Arbuscular mycorrhizal fungi (AMF) are present in paddy fields, where they suffer from periodic soil flooding and sometimes shading stress, but their interaction with rice plants in these environments is not yet fully explained. Based on two greenhouse experiments, we examined rice-growth response to AMF under different flooding and/or shading regimes to survey the regulatory effects of flooding on the mycorrhizal responses of rice plants under different light conditions. AMF had positive or neutral effects on the growth and yields of both tested rice varieties under non-flooding conditions but suppressed them under all flooding and/or shading regimes, emphasizing the high importance of flooding and shading conditions in determining the mycorrhizal effects. Further analyses indicated that flooding and shading both reduced the AMF colonization and extraradical hyphal density (EHD), implying a possible reduction of carbon investment from rice to AMF. The expression profiles of mycorrhizal P pathway marker genes (GintPT and OsPT11) suggested the P delivery from AMF to rice roots under all flooding and shading conditions. Nevertheless, flooding and shading both decreased the mycorrhizal P benefit of rice plants, as indicated by the significant decrease of mycorrhizal P responses (MPRs), contributing to the negative mycorrhizal effects on rice production. The expression profiles of rice defense marker genes OsPR1 and OsPBZ1 suggested that regardless of mycorrhizal growth responses (MGRs), AMF colonization triggered the basal defense response, especially under shading conditions, implying the multifaceted functions of AMF symbiosis and their effects on rice performance. In conclusion, this study found that flooding and shading both modulated the outcome of AMF symbiosis for rice plants, partially by influencing the mycorrhizal P benefit. This finding has important implications for AMF application in rice production.

show abstract

Section: C-p Exchange Between Rice and Arbuscular Mycorrhizal Fungi Under Different Flooding And Shading Regimessupporting

confidence: 51%

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Arbuscular Mycorrhizal Fungi on Rice Growth Under Different Flooding and Shading Regimes

Wang

Bao

2021

Front. Microbiol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In wetland ecosystems, [88] found a higher diversity of the communities of AMF. In these conditions, AMF could greatly improve the growth of plants through enhanced absorption of nutrient elements [89] (Table 2). These authors found that a considerable amount of P was transported to rice plants via the mycorrhizal pathway under wetland conditions.…”

Section: Amf and Plant Flooding Tolerancementioning

confidence: 99%

Roles of Arbuscular Mycorrhizal Fungi on Plant Growth and Performance: Importance in Biotic and Abiotic Stressed Regulation

et al. 2020

View full text Add to dashboard Cite

Arbuscular mycorrhizal fungi (AMF) establish symbiotic associations with most terrestrial plants. These soil microorganisms enhance the plant’s nutrient uptake by extending the root absorbing area. In return, the symbiont receives plant carbohydrates for the completion of its life cycle. AMF also helps plants to cope with biotic and abiotic stresses such as salinity, drought, extreme temperature, heavy metal, diseases, and pathogens. For abiotic stresses, the mechanisms of adaptation of AMF to these stresses are generally linked to increased hydromineral nutrition, ion selectivity, gene regulation, production of osmolytes, and the synthesis of phytohormones and antioxidants. Regarding the biotic stresses, AMF are involved in pathogen resistance including competition for colonization sites and improvement of the plant’s defense system. Furthermore, AMF have a positive impact on ecosystems. They improve the quality of soil aggregation, drive the structure of plant and bacteria communities, and enhance ecosystem stability. Thus, a plant colonized by AMF will use more of these adaptation mechanisms compared to a plant without mycorrhizae. In this review, we present the contribution of AMF on plant growth and performance in stressed environments.

show abstract

“…2018; Bao et al . 2019). Several studies have reported that plant growth promoting attributes of PGPB and AMF had positive effect on agricultural crops belonging to Poaceae family, leading to enhanced growth, crop yield and nutrient content in grains leading to biofortification (Giovannini et al .…”

Section: Introductionmentioning

confidence: 99%

Bacillus subtilisCP4, isolated from native soil in combination with arbuscular mycorrhizal fungi promotes biofortification, yield and metabolite production in wheat under field conditions

Yadav

Ror

Rathore

et al. 2020

J. Appl. Microbiol.

View full text Add to dashboard Cite

Aims The aim of this study was to identify the best combination of plant growth promoting bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF) for biofortification and enhancing yield in wheat as well as improve soil health under field conditions. Another aim was to get insights into metabolite dynamics in plants treated with PGPB and AMF. Methods and Results Different combinations of PGPB and AMF that gave good results in greenhouse study were used in a field study. The combined application of Bacillus subtilis CP4 (native PGPB) and AMF gave the best results with a significant increase in biomass, macronutrient and micronutrient content in wheat grains and improvement in yield‐related parameters relative to the untreated control. PGPB and AMF treatment increased antioxidant enzymes and compounds and decreased the level of an oxidation marker. Metabolite profiling performed using Gas Chromatography–Mass Spectrometry (GC‐MS) showed significant upregulation of specific organic acids, amino acids, sugars and sugar alcohols in plants treated with CP4 and AMF. The altered pathways due to CP4 and AMF inoculation mainly belong to carbohydrate and amino acid metabolism. A positive correlation was observed between some organic acids, sugars and amino acids with wheat growth and yield parameters. The activities of soil enzymes increased significantly with the best results shown by native PGPB and AMF combination. Conclusions A native bacterial isolate Bacillus subtilis CP4 in combination with AMF showed exceptional ability for biofortification and yield enhancement under field conditions. The upregulation of a number of metabolites showed correlation plant growth promotion and nutrients. Significance and Impact of the Study The combined application of native B. subtilis CP4 and AMF could offer a more sustainable approach for the development of a biofertilizer to enhance wheat nutrient content and production and soil health thereby advancing agriculture.

show abstract

Arbuscular mycorrhiza under water — Carbon‒phosphorus exchange between rice and arbuscular mycorrhizal fungi under different flooding regimes

Cited by 53 publications

References 62 publications

Effects of Arbuscular Mycorrhizal Fungi on Rice Growth Under Different Flooding and Shading Regimes

Effects of Arbuscular Mycorrhizal Fungi on Rice Growth Under Different Flooding and Shading Regimes

Roles of Arbuscular Mycorrhizal Fungi on Plant Growth and Performance: Importance in Biotic and Abiotic Stressed Regulation

Bacillus subtilisCP4, isolated from native soil in combination with arbuscular mycorrhizal fungi promotes biofortification, yield and metabolite production in wheat under field conditions

Contact Info

Product

Resources

About