The Role of the C:N:P Stoichiometry in the Carbon Balance Dynamics of the Legume–AMF–Rhizobium Tripartite Symbiotic Association

Gray, Vincent M.

doi:10.1007/978-3-642-13612-2_17

Cited by 5 publications

(6 citation statements)

References 123 publications

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“…Some studies have reported that biotic relationships between plants and fungi are strongly determined by the level of limitation of litter/soil C, N, and P and their stoichiometric relationships. Fungi and generally all soil microbial decomposers exert feedback on litter/soil stoichiometric variables (Johnson, 2010;Roy et al, 2017;Mei et al, 2019a,b), helping to maintain more balanced C:N:P ratios in plants (Johnson, 2010;Gray et al, 2010). The mycorrhization of terrestrial higher plants is mainly associated with high N availability and low N:P ratios, favouring high mobilisation of soil P and thus, plant P uptake and a more balanced plant N:P ratio (Gray et al, 2010;Mei et al, 2019a,b;Riley et al, 2019), J o u r n a l P r e -p r o o f which in turn favours high N and P foliar concentrations associated with a low N:P ratio and high growth rate (Chen et al, 2010;Mei et al, 2019a,b;Riley et al, 2019) and a high N-use efficiency (Gray et al, 2010).…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

“…Fungi and generally all soil microbial decomposers exert feedback on litter/soil stoichiometric variables (Johnson, 2010;Roy et al, 2017;Mei et al, 2019a,b), helping to maintain more balanced C:N:P ratios in plants (Johnson, 2010;Gray et al, 2010). The mycorrhization of terrestrial higher plants is mainly associated with high N availability and low N:P ratios, favouring high mobilisation of soil P and thus, plant P uptake and a more balanced plant N:P ratio (Gray et al, 2010;Mei et al, 2019a,b;Riley et al, 2019), J o u r n a l P r e -p r o o f which in turn favours high N and P foliar concentrations associated with a low N:P ratio and high growth rate (Chen et al, 2010;Mei et al, 2019a,b;Riley et al, 2019) and a high N-use efficiency (Gray et al, 2010). In support of this, Chagnon and Bradley (2013) observed that a decrease in the soil N:P ratio was associated with a decrease in arbuscular mycorrhizae and corresponding increases in non-mycorrhizal fungi.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

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Recent advances and future research in ecological stoichiometry

Sardans

Janssens

Ciais

et al. 2021

Perspectives in Plant Ecology, Evolution and Systematics

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Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Recent advances and future research in ecological stoichiometry

Sardans

Janssens

Ciais

et al. 2021

Perspectives in Plant Ecology, Evolution and Systematics

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“…It remains to be further determined whether the host supplies more photosynthetic products to root mycorrhizae for their growth in the early stage of mycorrhizal formation [47]. Plant H 2 O 2 is dramatically increased after microbial infestation, which is a defense response of the host plant to microbial infestation [48]. The results of the present study showed that root H 2 O 2 levels were significantly increased at 7 and 14 doi of Fm inoculation, and then no significant change started at 21 doi.…”

Section: Discussionmentioning

confidence: 99%

Defense responses and symbiotic functional initiation in trifoliate orange‒arbuscular mycorrhizal fungi interaction

Liu,

Zou

et al. 2024

Chem. Biol. Technol. Agric.

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Arbuscular mycorrhizal fungi (AMF) trigger beneficial effects on their hosts, but it is unknown how plants modulate their defense responses during root colonization of AMF and the symbiotic benefits are initiated. The purpose of this study was to analyze the root mycorrhizal colonization process of trifoliate orange and the responsive patterns of plant growth, root peroxide hydrogen (H2O2), antioxidant enzymes and their encoding gene expression, and sugar, lipid and phosphate transporter protein gene expression at 7‒56 days of inoculation (doi) with Funneliformis mosseae (Fm). Fm developed appressoriums on the root surface at 7 doi, followed by abundant arbuscules in root cortical cells at 28 doi, intracellular vesicles at 42 doi, and root mycorrhizal colonization rate of 41.54% at 56 doi. Plant growth improvement by Fm started at 28 doi. The immune defense response of roots was initiated at 7 doi, as evidenced by the increase of H2O2 levels and superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activity, as well as the up-regulation of PtMn-SOD, PtCu/Zn-SOD, PtPOD, and PtCAT expression, which lasted until 14 doi. Starting at 28 doi, a sugar transporter gene (PtSWEET), a lipid transporter gene (PtSTR), and a phosphate transporter gene (PtPT6) were initiated to be up-regulated, followed by the up-regulation of PtSTR2, PtPT3, and PtPT5 at 42 doi and PtFe-SOD at 56 doi. Arbuscule formation and plant growth improvement together at 28 doi suggested that arbuscules trigger improved growth responses of host plants. This study also reveals the initiation of host immune defense response and function in early root AMF colonization. Graphical Abstract

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“…In addition to biotic stress, production of pea can also be co-limited by abiotic stresses such as availability of these nutrients when growing in NP deficient soils. In the tripartite mycorrhiza-legume-Rhizobium symbiotic associations in particular, the acquisitions and allocations of N and P are indeed dependent on a complex set of exchanges between rhizobia, mycorrhizal fungi and their root association [32]. Several studies have demonstrated that their inoculation improves growth and productivity of legume plants under a variety of stress conditions [33,34].…”

Section: Discussionmentioning

confidence: 99%

Didymella pinodes Affects N and P Uptakes and Their Efficiencies in a Tripartite Mutualism of Pea

et al. 2019

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In pea (Pisum sativum L.) production, Didymella pinodes (Berk. & A. Bloxam) Petr. is the most damaging aerial pathogen globally. In two completely randomized pot experiments with four replicates, we studied the effects of D. pinodes infection interaction with three symbiotic treatments (Rhizobium leguminosarum biovar viciae, arbuscular mycorrhizal fungi (AMF) and co-inoculation of both) and a non-symbiotic control on one or two pea cultivars. Grain yield and yield components of pea, uptakes and physiological efficiencies of N and P and nitrogen fixation were recorded. The results show that there were significant interaction effects among treatments. Therefore, productivity of crops and their uptakes and efficiencies of N and P are dependent on plant health conditions, effectiveness of microbial symbionts and response of pea genotypes. For cv. Protecta inoculated with both symbionts, pathogen infection compared to healthy plants significantly enhanced P acquisition. Overall, plants inoculated with rhizobia alone had higher grain yield by 20-30% and nitrogen fixation by 20-25% than in dual symbiosis independent of plant health conditions. In conclusion, aerial pathogen, pea genotypes and microbial symbionts interactions modified N and P uptake and their efficiencies, which can lead to improving final grain yield quantity and quality in a sustainable farming system.

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The Role of the C:N:P Stoichiometry in the Carbon Balance Dynamics of the Legume–AMF–Rhizobium Tripartite Symbiotic Association

Cited by 5 publications

References 123 publications

Recent advances and future research in ecological stoichiometry

Recent advances and future research in ecological stoichiometry

Defense responses and symbiotic functional initiation in trifoliate orange‒arbuscular mycorrhizal fungi interaction

Didymella pinodes Affects N and P Uptakes and Their Efficiencies in a Tripartite Mutualism of Pea

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