Constitutive overexpression of the sucrose transporter SoSUT1 in potato plants increases arbuscular mycorrhiza fungal root colonization under high, but not under low, soil phosphorus availability

Gabriel-Neumann, Elke; Neumann, Günter; Leggewie, Georg; George, Eckhard

doi:10.1016/j.jplph.2010.11.026

Cited by 34 publications

(23 citation statements)

References 67 publications

(74 reference statements)

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“…Transgenic plants expressing antisense SUTs in potato (Kuhn et al, 1996; Lemoine et al, 1996; Gabriel-Neumann et al, 2011), tobacco (Burkle et al, 1998), or tomato (Bitterlich et al, 2014) have been characterized for their accumulation of leaf carbohydrates and impaired root development. Moreover, reduced tuber yield in potato lines, delayed or impaired flowering in tobacco lines, and increased mycorrhizal colonization in tomato lines have been observed.…”

Section: Introductionmentioning

confidence: 99%

“…Potato plants transformed with a sense spinach SUT (SoSUT1) showed reduced sucrose levels in leaves and varied tuber morphology (Leggewie et al, 2003). Transgenic potato plants with constitutive overexpression of SUT1 exhibited increased mycorrhization (Gabriel-Neumann et al, 2011). The overexpression of a potato SUT ( StSUT1 ) in pea cotyledon storage parenchyma cells enhanced the sucrose uptake capacity of cotyledons and their growth rates (Rosche et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Overexpression of a Grapevine Sucrose Transporter (VvSUC27) in Tobacco Improves Plant Growth Rate in the Presence of Sucrose In vitro

Cai

et al. 2017

Front. Plant Sci.

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The import of sugar from source leaves and it further accumulation in grape berries are considerably high during ripening, and this process is mediated via sucrose transporters. In this study, a grape sucrose transporter (SUT) gene, VvSUC27, located at the plasma membrane, was transferred to tobacco (Nicotiana tabacum). The transformants were more sensitive to sucrose and showed more rapid development, especially roots, when cultured on MS agar medium containing sucrose, considering that the shoot/root dry weight ratio was only half that of the control. Moreover, all transformed plants exhibited light-colored leaves throughout their development, which indicated chlorosis and an associated reduction in photosynthesis. The total sugar content in the roots and stems of transformants was higher than that in control plants. No significant difference was observed in the leaves between the transformants and control plants. The levels of growth-promoting hormones were increased, and those of stress-mediating hormones were reduced in transgenic tobacco plants. The qRT-PCR analysis revealed that the expression of VvSUC27 was 1,000 times higher than that of the autologous tobacco sucrose transporter, which suggested that the markedly increased growth rate of transformants was because of the heterogeneously expressed gene. The transgenic tobacco plants showed resistance to abiotic stresses. Strikingly, the overexpression of VvSUC27 leaded to the up regulation of most reactive oxygen species scavengers and abscisic acid-related genes that might enable transgenic plants to overcome abiotic stress. Taken together, these results revealed an important role of VvSUC27 in plant growth and response to abiotic stresses, especially in the presence of sucrose in vitro.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Overexpression of a Grapevine Sucrose Transporter (VvSUC27) in Tobacco Improves Plant Growth Rate in the Presence of Sucrose In vitro

Cai

et al. 2017

Front. Plant Sci.

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“…In contrast, AMF permitted more plant nutrition gain per unit of C invested into fungi for plants grown under low CO 2 (Field et al 2012). In another study using whole-plant system, differences in sucrose investment did not affect nutrient (N, P, Zn) uptake by plants via arbuscular mycorrhizal fungi (Gabriel-Neumann et al 2011). Thus, plant C supply may not be the only factor controlling AMF nutrient transfer.…”

Section: Introductionmentioning

confidence: 89%

Plant carbon limitation does not reduce nitrogen transfer from arbuscular mycorrhizal fungi to Plantago lanceolata

et al. 2015

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Aims The stress-gradient-hypothesis predicts that interactions among organisms shift from competition to facilitation as environmental stress increases. Whether the strength of mutualism will increase among symbiotically associated organisms when partners are forced into resource limitation remains unknown. Plants exchange photosynthetic carbohydrates (plant C) for nutrients in mycorrhizal symbiosis but how this exchange varies with plant C limitation is not fully understood. Methods We investigated the influence of plant C availability and of arbuscular mycorrhizal fungi (AMF) on plant nitrogen (N) uptake and resource allocation using 13C and 15N labeling. We grew Plantago lanceolata with and without AMF Rhizophagus irregularis under ambient (400 ppm, AC) and low (100 ppm, LC) atmospheric [CO2] and physically restricted plant root but not mycorrhizal access to soil N. Results We found that plants grown under LC used AMF to obtain the same amount of N as those grown under AC, but the amount of newly fixed C correlated with the acquisition of N only under LC. The LC plants allocated more of their C to aboveground tissues. Conclusions Overall our results suggest a more beneficial role of symbiosis under C limitation. The tight reciprocal control on N transfer and C allocation under C limited conditions supports the stress-gradient hypothesis of mutualistic symbiotic functioning

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“…Recent studies showed that several SUT genes present a fine‐tuning regulation of their expression in response to AM inoculation in different plant species (Boldt et al , Doidy et al ). The studies of Bitterlich et al () and Gabriel‐Neumann et al () provided evidence that plant sucrose transporters are functionally involved in this process. Constitutive overexpression of SUT1 type sucrose transporter gene in potato plants increased AM root colonization (under high‐soil phosphorus availability; Gabriel‐Neumann et al ).…”

Section: Sugar Transport In Response To Biotic Factorsmentioning

confidence: 99%

“…The studies of Bitterlich et al () and Gabriel‐Neumann et al () provided evidence that plant sucrose transporters are functionally involved in this process. Constitutive overexpression of SUT1 type sucrose transporter gene in potato plants increased AM root colonization (under high‐soil phosphorus availability; Gabriel‐Neumann et al ). By contrast, transgenic tomato plants with reduced expression of SlSUT2 exhibited increased mycorrhization and the positive effect of the interaction was at least partially abolished (Bitterlich et al ).…”

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

124

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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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Constitutive overexpression of the sucrose transporter SoSUT1 in potato plants increases arbuscular mycorrhiza fungal root colonization under high, but not under low, soil phosphorus availability

Cited by 34 publications

References 67 publications

Overexpression of a Grapevine Sucrose Transporter (VvSUC27) in Tobacco Improves Plant Growth Rate in the Presence of Sucrose In vitro

Overexpression of a Grapevine Sucrose Transporter (VvSUC27) in Tobacco Improves Plant Growth Rate in the Presence of Sucrose In vitro

Plant carbon limitation does not reduce nitrogen transfer from arbuscular mycorrhizal fungi to Plantago lanceolata

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

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