TaPT2, a high-affinity phosphate transporter gene in wheat (Triticum aestivum L.), is crucial in plant Pi uptake under phosphorus deprivation

Guo, Chengjin; Guo, Li; Li, Xiaojuan; Gu, Jiafeng; Zhao, Miao; Duan, Weiwei; Ma, Chunying; Lu, Wenjing; Xiao, Kai

doi:10.1007/s11738-014-1516-x

Cited by 41 publications

(22 citation statements)

References 56 publications

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“…In other studies, Pi transporter genes have been isolated from tomato Lycopersicon esculentum (Daram et al 1998), legume Medicago truncatula (Liu et al 1998) and wheat Triticum aestivum (Guo et al 2014) for potential gene transfer. Transgenic tobacco cell cultures with Arabidopsis thaliana Pi transporter genes over-expressed showed an increase in Pi uptake under P limited conditions (Mitsukawa et al 1997).…”

Section: Plant Breedingmentioning

confidence: 99%

Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security

Rowe

Withers

Baas

et al. 2015

Nutr Cycl Agroecosyst

241

196

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Legacy phosphorus (P) that has accumulated in soils from past inputs of fertilizers and manures is a large secondary global source of P that could substitute manufactured fertilizers, help preserve critical reserves of finite phosphate rock to ensure future food and bioenergy supply, and gradually improve water quality. We explore the issues and management options to better utilize legacy soil P and conclude that it represents a valuable and largely accessible P resource. The future value and period over which legacy soil P can be accessed depends on the amount present and its distribution, its availability to crops and rates of drawdown determined by the cropping system. Full exploitation of legacy P requires a transition to a more holistic system approach to nutrient management based on technological advances in precision farming, plant breeding and microbial engineering together with a greater reliance on recovered and recycled P. We propose the term 'agro-engineering' to encompass this integrated approach. Smaller targeted applications of fertilizer P may still be needed to optimize crop yields where legacy soil P cannot fully meet crop demands. Farm profitability margins, the need to recycle animal manures and the extent of local eutrophication problems will dictate when, where and how quickly legacy P is best exploited. Based on our analysis, we outline the stages and drivers in a transition to the full utilization of legacy soil P as part of more sustainable regional and global nutrient management.

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Section: Plant Breedingmentioning

confidence: 99%

Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security

Rowe

Withers

Baas

et al. 2015

Nutr Cycl Agroecosyst

241

196

View full text Add to dashboard Cite

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“…Interestingly, the expression of TaPHT1.1, 1.2, 1.9, and 1.10 at flowering positively correlated with P uptake after stem elongation in different wheat varieties under field conditions supplemented with different P rates ( [21]). Under Pi deprivation, Pi uptake increases and involves a high-affinity PHT1 member TaPT2 ( [65]). Down-regulation of TaPHT2.1 was able to induce a pronounced decrease in Pi accumulation in both sufficient and Pi-deficient wheat, suggesting its association with other PHTs involved in Pi uptake and translocation within plants ( [41]).…”

Section: Phosphate Uptake and Transport In Wheat And Arabidopsismentioning

confidence: 99%

Phosphorus Transport in Arabidopsis and Wheat: Emerging Strategies to Improve P Pool in Seeds

et al. 2018

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Phosphorus (P) is an essential macronutrient for plants to complete their life cycle. P taken up from the soil by the roots is transported to the rest of the plant and ultimately stored in seeds. This stored P is used during germination to sustain the nutritional demands of the growing seedling in the absence of a developed root system. Nevertheless, P deficiency, an increasing global issue, greatly decreases the vigour of afflicted seeds. To combat P deficiency, current crop production methods rely on heavy P fertilizer application, an unsustainable practice in light of a speculated decrease in worldwide P stocks. Therefore, the overall goal in optimizing P usage for agricultural purposes is both to decrease our dependency on P fertilizers and enhance the P-use efficiency in plants. Achieving this goal requires a robust understanding of how plants regulate inorganic phosphate (Pi) transport, during vegetative growth as well as the reproductive stages of development. In this short review, we present the current knowledge on Pi transport in the model plant Arabidopsis thaliana and apply the information towards the economically important cereal crop wheat. We highlight the importance of developing our knowledge on the regulation of these plants' P transport systems and P accumulation in seeds due to its involvement in maintaining their vigour and nutritional quality. We additionally discuss further discoveries in the subjects this review discusses substantiate this importance in their practical applications for practical food security and geopolitical applications.

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“…OsPT9 and OsPT10 function redundantly in P uptake under both high‐P and low‐P conditions (Wang et al ). In wheat, a root‐specific phosphate transporter, TaPT2, mediates P uptake under low‐P conditions, which makes this an interesting candidate gene for improving P use efficiency in cereals (Guo et al ). Even so, for most crop species, our understanding of the functions of PHT1 family members remains fragmentary, and will require further investigation and characterization to determine their roles in the development of P‐efficient crops.…”

Section: Improving Nutrient Acquisition Efficiency Through Root Modifmentioning

confidence: 99%

Engineering crop nutrient efficiency for sustainable agriculture

Chen

Liao

2017

JIPB

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Increasing crop yields can provide food, animal feed, bioenergy feedstocks and biomaterials to meet increasing global demand; however, the methods used to increase yield can negatively affect sustainability. For example, application of excess fertilizer can generate and maintain high yields but also increases input costs and contributes to environmental damage through eutrophication, soil acidification and air pollution. Improving crop nutrient efficiency can improve agricultural sustainability by increasing yield while decreasing input costs and harmful environmental effects. Here, we review the mechanisms of nutrient efficiency (primarily for nitrogen, phosphorus, potassium and iron) and breeding strategies for improving this trait, along with the role of regulation of gene expression in enhancing crop nutrient efficiency to increase yields. We focus on the importance of root system architecture to improve nutrient acquisition efficiency, as well as the contributions of mineral translocation, remobilization and metabolic efficiency to nutrient utilization efficiency.

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TaPT2, a high-affinity phosphate transporter gene in wheat (Triticum aestivum L.), is crucial in plant Pi uptake under phosphorus deprivation

Cited by 41 publications

References 56 publications

Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security

Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security

Phosphorus Transport in Arabidopsis and Wheat: Emerging Strategies to Improve P Pool in Seeds

Engineering crop nutrient efficiency for sustainable agriculture

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