Take a Trip Through the Plant and Fungal Transportome of Mycorrhiza

Garcia, Kevin; Doidy, Joan; Zimmermann, Sabine; Wipf, Daniel; Courty, Pierre‐Emmanuel

doi:10.1016/j.tplants.2016.07.010

Cited by 202 publications

(137 citation statements)

References 134 publications

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“…A). Both the plant and fungal transportome control the mutual exchanges, ensuring benefits for both partners (Garcia et al ). A study carried out by Kiers et al () showed that Medicago plants could supply more carbohydrates to more cooperative fungal species that transfer greater phosphate resources.…”

Section: Sugar Transport In Response To Biotic Factorsmentioning

confidence: 99%

Sugars en route to the roots. Transport, metabolism and storage within plant roots and towards microorganisms of the rhizosphere

Hennion

Durand

Vriet

et al. 2018

Physiologia Plantarum

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128

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In plants, the root is a typical sink organ that relies exclusively on the import of sugar from the aerial parts. Sucrose is delivered by the phloem to the most distant root tips and, en route to the tip, is used by the different root tissues for metabolism and storage. Besides, a certain portion of this carbon is exuded in the rhizosphere, supplied to beneficial microorganisms and diverted by parasitic microbes. The transport of sugars toward these numerous sinks either occurs symplastically through cell connections (plasmodesmata) or is apoplastically mediated through membrane transporters (MST, mononsaccharide tranporters, SUT/SUC, H+/sucrose transporters and SWEET, Sugar will eventually be exported transporters) that control monosaccharide and sucrose fluxes. Here, we review recent progresses on carbon partitioning within and outside roots, discussing membrane transporters involved in plant responses to biotic and abiotic factors.

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Section: Sugar Transport In Response To Biotic Factorsmentioning

confidence: 99%

Sugars en route to the roots. Transport, metabolism and storage within plant roots and towards microorganisms of the rhizosphere

Hennion

Durand

Vriet

et al. 2018

Physiologia Plantarum

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128

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“…The uptake of nutrients from inner symbiotic structures requires the specific expression and regulation of plasma membrane transport systems in colonized cortical cells (Casieri et al, 2013;Garcia et al, 2016). Some plant transporters were described to transport phosphorus or nitrogen from AM fungi to plant cells in arbuscules (Harrison et al, 2002;Breuillin-Sessoms et al, 2015).…”

Section: Am Symbiosis Modulates the Plant Responses To K + Deprivationmentioning

confidence: 99%

“…The improvement of plant nutrition through AM symbiosis and the molecular basis of nutrient transfer are well characterized for phosphorus, nitrogen, and sulfur (Govindarajulu et al, 2005;Javot et al, 2007;Jin et al, 2012;Casieri et al, 2013;Courty et al, 2016;Garcia et al, 2016). However, the role of mycorrhizal symbioses in plant K + nutrition is still understudied and misunderstood .…”

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confidence: 99%

Physiological Responses and Gene Co-Expression Network of Mycorrhizal Roots under K⁺ Deprivation

et al. 2017

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Arbuscular mycorrhizal (AM) associations enhance the phosphorous and nitrogen nutrition of host plants, but little is known about their role in potassium (K + ) nutrition. Medicago truncatula plants were cocultured with the AM fungus Rhizophagus irregularis under high and low K + regimes for 6 weeks. We determined how K + deprivation affects plant development and mineral acquisition and how these negative effects are tempered by the AM colonization. The transcriptional response of AM roots under K + deficiency was analyzed by whole-genome RNA sequencing. K + deprivation decreased root biomass and external K + uptake and modulated oxidative stress gene expression in M. truncatula roots. AM colonization induced specific transcriptional responses to K + deprivation that seem to temper these negative effects. A gene network analysis revealed putative key regulators of these responses. This study confirmed that AM associations provide some tolerance to K + deprivation to host plants, revealed that AM symbiosis modulates the expression of specific root genes to cope with this nutrient stress, and identified putative regulators participating in these tolerance mechanisms.

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“…Because of the obligate biotrophy of AM fungi which depend on a carbon flux from the host, the mechanisms mediating nutrient acquisition and exchanges through plant-fungus interfaces are regarded as key features of the interaction (Garcia et al 2016). Among the proteins candidate for these processes, Table 1 indicates a greater abundance in AM roots than in controls of the polyol/monosaccharide transporter 1 (Medtr4g069500).…”

Section: Am-responsive Proteins As Related To Sugar/peptide Transportmentioning

confidence: 99%

“…Because of the expansion of the host PM around fungal structures, together with metabolite transfer between the two symbionts, PM protein composition is expected to dynamically change during the root colonization process . Current knowledge regarding plant PM protein remodeling events in mycorrhizal plants, however, mainly deals with the involvement of membrane trafficking proteins mediating exocytotic fusion of vesicles with the PM Ivanov et al 2012;Lota et al 2013;Zhang et al 2015;Harrison and Ivanov 2017) and the transcriptional regulation of plant genes encoding PM nutrient transporters (reviewed by Garcia et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The plasma membrane proteome of Medicago truncatula roots as modified by arbuscular mycorrhizal symbiosis

Aloui¹,

Recorbet²,

Lemaître‐Guillier³

et al. 2017

Mycorrhiza

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In arbuscular mycorrhizal (AM) roots, the plasma membrane (PM) of the host plant is involved in all developmental stages of the symbiotic interaction, from initial recognition to intracellular accommodation of intra-radical hyphae and arbuscules. Although the role of the PM as the agent for cellular morphogenesis and nutrient exchange is especially accentuated in endosymbiosis, very little is known regarding the PM protein composition of mycorrhizal roots. To obtain a global overview at the proteome level of the host PM proteins as modified by symbiosis, we performed a comparative protein profiling of PM fractions from Medicago truncatula roots either inoculated or not with the AM fungus Rhizophagus irregularis. PM proteins were isolated from root microsomes using an optimized discontinuous sucrose gradient; their subsequent analysis by liquid chromatography followed by mass spectrometry (MS) identified 674 proteins. Cross-species sequence homology searches combined with MS-based quantification clearly confirmed enrichment in PM-associated proteins and depletion of major microsomal contaminants. Changes in protein amounts between the PM proteomes of mycorrhizal and non-mycorrhizal roots were monitored further by spectral counting. This workflow identified a set of 82 mycorrhiza-responsive proteins that provided insights into the plant PM response to mycorrhizal symbiosis. Among them, the association of one third of the mycorrhiza-responsive proteins with detergent-resistant membranes pointed at partitioning to PM microdomains. The PM-associated proteins responsive to mycorrhization also supported host plant control of sugar uptake to limit fungal colonization, and lipid turnover events in the PM fraction of symbiotic roots. Because of the depletion upon symbiosis of proteins mediating the replacement of phospholipids by phosphorus-free lipids in the plasmalemma, we propose a role of phosphate nutrition in the PM composition of mycorrhizal roots.

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Take a Trip Through the Plant and Fungal Transportome of Mycorrhiza

Cited by 202 publications

References 134 publications

Sugars en route to the roots. Transport, metabolism and storage within plant roots and towards microorganisms of the rhizosphere

Sugars en route to the roots. Transport, metabolism and storage within plant roots and towards microorganisms of the rhizosphere

Physiological Responses and Gene Co-Expression Network of Mycorrhizal Roots under K⁺ Deprivation

The plasma membrane proteome of Medicago truncatula roots as modified by arbuscular mycorrhizal symbiosis

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Take a Trip Through the Plant and Fungal Transportome of Mycorrhiza

Cited by 202 publications

References 134 publications

Sugars en route to the roots. Transport, metabolism and storage within plant roots and towards microorganisms of the rhizosphere

Sugars en route to the roots. Transport, metabolism and storage within plant roots and towards microorganisms of the rhizosphere

Physiological Responses and Gene Co-Expression Network of Mycorrhizal Roots under K+ Deprivation

The plasma membrane proteome of Medicago truncatula roots as modified by arbuscular mycorrhizal symbiosis

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Physiological Responses and Gene Co-Expression Network of Mycorrhizal Roots under K⁺ Deprivation