Increased grain yield and micronutrient concentration in transgenic winter wheat by ectopic expression of a barley sucrose transporter

Saalbach, Isolde; Mora-Ramírez, Isabel; Weichert, Nicola; Andersch, Franka; Guild, Georgia E.; Wieser, Herbert; Koehler, Peter; Stangoulis, James; Kumlehn, Jochen; Weschke, Winfriede; Weber, Hans

doi:10.1016/j.jcs.2014.01.017

Cited by 35 publications

(43 citation statements)

References 35 publications

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“…It is assumed that phytohormones, particularly cytokinins play a major role in increasing sink size by promoting cell division during the early phase of seed filling. However, more recent work has shown that grain mass and endosperm cell number in wheat are closely associated (Saalbach et al, 2014). Besides in cereals, endosperm cell number is regulated by assimilate supply during the first two weeks after anthesis (Yang et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand spray of nTiO 2 increased grain number per spike up to 10 % over to control. It is recognized that the grain number per spike is strongly depended on assimilates allocation to the spike and it is limited by postphloem assimilate supply (Saalbach et al, 2014). Nano-titanium dioxide (nTiO 2 ) with photocatalytic property can increase photosynthesis by promoting cyclic and linear photophosphorylation (Gao et al, 2013) and it can result in enhancement of photoassimilates supply in leaves (i.e., increasing source capacity).…”

Section: Resultsmentioning

confidence: 99%

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Impact of foliar application of nano micronutrient fertilizers and titanium dioxide nanoparticles on the growth and yield components of barley under supplemental irrigation

Janmohammadi¹,

Amanzadeh²,

Sabaghnia³

et al. 2016

AAS

114

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Nano-fertilizers are new generation of the synthetic fertilizers which contain readily available nutrients in nano scale range. Nano fertilizers are preferred largely due to their efficiency and environment friendly nature compared to conventional chemical fertilizers. To evaluate the effects of foliar spray of micronutrient nano-fertilizer (iron and zinc) and nano-titanium dioxide (nTiO2) solution on grain yield and its components in barley under supplemental irrigation conditions, a field experiment was carried out in the semi-arid highland region of Maragheh, Iran. Barley plants were separately treated with of chelated nano-scale zinc oxide (ZnO) and ferric oxide (Fe2O3) suspensions during tillering stage, booting and milky stages. Results revealed that days to anthesis and maturity significantly increased after application of both nano-fertilizers. Furthermore, a considerable improvement was observed in grain mass, spike length, number of the grains per spike, chlorophyll content, grain yield and harvest index by application of nano-fertilizer. However the impact of nano zinc fertilizer was more prominent than iron. Foliar application of nTiO2 positively affected some morphophysiological characteristics like as days to anthesis, chlorophyll content and straw yield. The results suggest that the delivery of Zn into barley seedling through spray of nano-fertilizer can be an efficient nutrient management strategy in semi-arid regions. Overall, our result indicated that the integration of nanotechnology in fertilizer products can improve fertilizer use efficiency and significantly increase of barley yield. However, plant response to nanoparticles significantly depend on concentration and time of application as well as size, shape, and surface functionalization of the particles.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Impact of foliar application of nano micronutrient fertilizers and titanium dioxide nanoparticles on the growth and yield components of barley under supplemental irrigation

Janmohammadi¹,

Amanzadeh²,

Sabaghnia³

et al. 2016

AAS

114

View full text Add to dashboard Cite

show abstract

“…However, more recent work has shown that grain mass and endosperm cell number in wheat are closely associated. It is recognized that the grain number per spike is strongly dependent on assimilates allocation to the spike and it is limited by post-phloem assimilate supply (Saalbach et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Abdel-Aziz¹,

Hasaneen²,

Omer³

2018

Egypt. J. Exp. Biol. (Bot.)

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He b a M a h m o u d Mo h a m m a d A b d e l -A zi zM o h a m m e d N a g i b A b d e l -Gh a n y H a s a n e e n A ya Mo h e b O me r Foliar application of nano chitosan NPK fertilizer improves the yield of w heat plants grow n on tw o different soils ABSTRACT: Foliar application of nano chitosan nitrogen, phosphorus and potassium (NPK) fertilizer decreased the life cycle of wheat plants with the ratio of 23.5% (130 days for yield production from date of sowing). Treatment of wheat plants with nano chitosan NPK fertilizer induced signif icant increases in all yield parameters, as compared with control yield parameters of normal non -fertilized and normal fertilized NPK wheat plants. Transmission electron microscopy investigations showed that nanoparticles were present in phloem tissues whi ch mean that nanoparticles were taken up and transported through phloem route from leaves to stem down to roots. Clay-sandy soil showed better results than those obtained for clay soil. Foliar application of nano fertilizer to wheat plants proved to be important to improve yield parameters of wheat plants and shorten the life cycle of the crop. KEY WORDS:Nanofertilizers, Clay soil, Clay -sandy Soil, Uptake, W heat. CORRESPONDENCE:He

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“…In addition, the Suc uptake capacity of grains and storage protein biosynthesis was increased in transgenic wheat (Triticum aestivum) plants expressing the barley (Hordeum vulgare) SUT HvSUT1 under the control of an endosperm-specific promoter (Weichert et al, 2010). Moreover, it was recently found that these transgenic wheat plants had a higher thousand grain weight and grain width and length, as well as a 28% increase in grain yield (Saalbach et al, 2014).…”

mentioning

confidence: 99%

Enhanced sucrose loading improves rice yield by increasing grain size

Wang

Wen

et al. 2015

Plant Physiol.

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Yield in cereals is a function of grain number and size. Sucrose (Suc), the main carbohydrate product of photosynthesis in higher plants, is transported long distances from source leaves to sink organs such as seeds and roots. Here, we report that transgenic rice plants (Oryza sativa) expressing the Arabidopsis (Arabidopsis thaliana) phloem-specific Suc transporter (AtSUC2), which loads Suc into the phloem under control of the phloem protein2 promoter (pPP2), showed an increase in grain yield of up to 16% relative to wild-type plants in field trials. Compared with wild-type plants, pPP2::AtSUC2 plants had larger spikelet hulls and larger and heavier grains. Grain filling was accelerated in the transgenic plants, and more photoassimilate was transported from the leaves to the grain. In addition, microarray analyses revealed that carbohydrate, amino acid, and lipid metabolism was enhanced in the leaves and grain of pPP2::AtSUC2 plants. Thus, enhancing Suc loading represents a promising strategy to improve rice yield to feed the global population.

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Increased grain yield and micronutrient concentration in transgenic winter wheat by ectopic expression of a barley sucrose transporter

Cited by 35 publications

References 35 publications

Impact of foliar application of nano micronutrient fertilizers and titanium dioxide nanoparticles on the growth and yield components of barley under supplemental irrigation

Impact of foliar application of nano micronutrient fertilizers and titanium dioxide nanoparticles on the growth and yield components of barley under supplemental irrigation

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Enhanced sucrose loading improves rice yield by increasing grain size

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