Transport of nitrogen and zinc to rhodes grass by arbuscular mycorrhiza and roots as affected by different nitrogen sources (NH4 +-N and NO3 −-N)

Seck-Mbengue, Marie Franҫoise; Müller, Anja; Ngwene, Benard; Neumann, Elke; George, Eckhard

doi:10.1007/s13199-017-0480-9

Cited by 5 publications

(6 citation statements)

References 35 publications

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“…Rather than depending on the balance between resources given vs resources received, mycorrhizal benefit may instead derive solely from improved nutrition due to better substrate exploration leading to higher resource access. In support of this, studies using compartmented systems with separate root and fungal compartments have consistently found AMF to substantially contribute to plant N uptake, leading to higher plant growth (Johansen et al ., 1993, 1994; Hawkins & George, 1999, 2001; Mäder et al ., 2000; Leigh et al ., 2009; Schroeder‐Moreno et al ., 2011; Büscher et al ., 2012; Ngwene et al ., 2013; Thirkell et al ., 2016; Seck‐Mbengue et al ., 2017). This is a problem that the present study shares with other pot assays, and which may explain other reports of negative mycorrhizal effects.…”

Section: Discussionmentioning

confidence: 99%

“…However, increasing evidence supports a critical importance of AM for plant nitrogen (N) nutrition. AMF transfer N to host plants (Johansen et al ., 1994; Hawkins et al ., 2000; Mäder et al ., 2000; Leigh et al ., 2009; Herman et al ., 2012; Ngwene et al ., 2013; Thirkell et al ., 2016; Seck‐Mbengue et al ., 2017; Bukovská et al ., 2018), the amounts transferred are considerable (Frey et al ., 1994; Mäder et al ., 2000; Tanaka & Yano, 2005; Karagiannidis et al ., 2007; Leigh et al ., 2009), and N transport may play a critical role in the formation, maintenance and nutrient efficiency of AM symbioses (Bonneau et al ., 2013; Corrêa et al ., 2014; Hodge & Storer, 2014; Bücking & Kafle, 2015; Mensah et al ., 2015; Jach‐Smith & Jackson, 2018). Furthermore, several genes encoding enzymes from plant and fungal N assimilation pathways are co‐regulated in AM roots, suggesting partner interdependence in the mycorrhizal N uptake pathway (Koegel et al ., 2015).…”

Section: Introductionmentioning

confidence: 99%

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Testing the trade‐balance model: resource stoichiometry does not sufficiently explain AM effects

Corrêa,

Ferrol,

Cruz

2023

New Phytologist

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Summary Variations in arbuscular mycorrhizae (AM) effects on plant growth (MGR) are commonly assumed to result from cost : benefit balances, with C as the cost and, most frequently, P as the benefit. The trade‐balance model (TBM) adopts these assumptions and hypothesizes that mycorrhizal benefit depends on C : N : P stoichiometry. Although widely accepted, the TBM has not been experimentally tested. We isolated the parameters included in the TBM and tested these assumptions using it as framework. Oryza sativa plants were supplied with different N : P ratios at low light level, establishing different C : P and C : N exchange rates, and C, N or P limitation. MGR and effects on nutrient uptake, %M, ERM, photosynthesis and shoot starch were measured. C distribution to AM fungi played no role in MGR, and N was essential for all AM effects, including on P nutrition. C distribution to AM and MGR varied with the limiting nutrient (N or P), and evidence of extensive interplay between N and P was observed. The TBM was not confirmed. The results agreed with the exchange of surplus resources and source–sink regulation of resource distribution among plants and AMF. Rather than depending on exchange rates, resource exchange may simply obey both symbiont needs, not requiring further regulation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Testing the trade‐balance model: resource stoichiometry does not sufficiently explain AM effects

Corrêa,

Ferrol,

Cruz

2023

New Phytologist

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“…The analyses have been performed by validated analytical methods of LUFA (Hoffmann, 1991 ). The analyses of the soil-pH (A 5.1.1), the EC value, salt content (A 10.1.1) as well as

and

(A 6.1.4.1) have been described by Seck-Mbengue et al ( 2017 ). The total C, N and S concentrations were determined by Dumas combustion using the Elementar Analyser Vario EL (Elementar, Elementar Analysensysteme GmbH, Langenselbold, Germany) according to LUFA A 2.2.5.…”

Section: Methodsmentioning

confidence: 99%

Effect of Solid Biological Waste Compost on the Metabolite Profile of Brassica rapa ssp. chinensis

et al. 2018

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Large quantities of biological waste are generated at various steps within the food production chain and a great utilization potential for this solid biological waste exists apart from the current main usage for the feedstuff sector. It remains unclear how the usage of biological waste as compost modulates plant metabolites. We investigated the effect of biological waste of the processing of coffee, aronia, and hop added to soil on the plant metabolite profile by means of liquid chromatography in pak choi sprouts. Here we demonstrate that the solid biological waste composts induced specific changes in the metabolite profiles and the changes are depending on the type of the organic residues and its concentration in soil. The targeted analysis of selected plant metabolites, associated with health beneficial properties of the Brassicaceae family, revealed increased concentrations of carotenoids (up to 3.2-fold) and decreased amounts of glucosinolates (up to 4.7-fold) as well as phenolic compounds (up to 1.5-fold).

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“…Al‐Arjani et al (2020) observed an increase in the content of NO 3 − and NH 4 + in E. foliata plants inoculated with AMF. Moreover, Seck‐Mbengue et al (2017) reported an increase in the total nitrogen content, with ammonium contributing twice as much as nitrate to the overall increase in total nitrogen content.…”

Section: Discussionmentioning

confidence: 99%

Influence of arbuscular mycorrhizal fungi density on growth and metabolism of Handroanthus serratifolius (Vahl) S.O. Grose seedlings

da Sousa,

Correia,

dos Farias

et al. 2023

Physiologia Plantarum

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Studies on the relationship between Handroanthus serratifolius and arbuscular mycorrhizal fungi (AMF) are limited in the literature. The influence of AMF spore density on plant development is fundamental information to determining the degree of benefits in this relationship. Therefore, the objective of this study was to investigate the effects of different AMF spore densities on thirty‐day‐old H. serratifolius seedlings, focusing on growth and biochemical parameters using a completely randomized experimental design with three different spore densities and control. The spore densities were classified as low, medium, and high, with 1.54, 3.08, and 12.35 spores g−1, respectively. Plant growth analysis, mycorrhizal colonization, nitrogen compound concentration, and carbohydrate analysis were performed. The medium spore density treatment showed the greatest increases in biomass, height, leaf area, and root volume. Furthermore, greater absorption of phosphorus and better dynamics in nitrogen metabolism were observed in mycorrhizal plants compared to the control since the ammonium and nitrate compounds were rapidly incorporated into protein and chlorophyll compounds. The carbohydrate analysis revealed the influence of source‐sink dynamics on sugar concentration in different plant parts. These findings support the importance of determining the appropriate spore density for assessing the symbiotic relationship between forest species and AMF.

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Transport of nitrogen and zinc to rhodes grass by arbuscular mycorrhiza and roots as affected by different nitrogen sources (NH4 +-N and NO3 −-N)

Cited by 5 publications

References 35 publications

Testing the trade‐balance model: resource stoichiometry does not sufficiently explain AM effects

Testing the trade‐balance model: resource stoichiometry does not sufficiently explain AM effects

Effect of Solid Biological Waste Compost on the Metabolite Profile of Brassica rapa ssp. chinensis

Influence of arbuscular mycorrhizal fungi density on growth and metabolism of Handroanthus serratifolius (Vahl) S.O. Grose seedlings

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