Integration of Nitrogen and Potassium Signaling

Tsay, Yi-Fang; Ho, Cheng-Hsun; Chen, Hui-Yu; Lin, Shanhua

doi:10.1146/annurev-arplant-042110-103837

Cited by 128 publications

(87 citation statements)

References 95 publications

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“…glutamine or glutamate (Vidmar et al 2000). In high concentrations -LBD37 (lateral organ boundary domain), a transcription factor encoded by LBD37 gene leads to the inhibition of the expression of nitrate-responsive genes, thus inhibiting NO3 -uptake (Tsay et al 2011). Similar regulation has been described for another transcription factor, CCA1 encoded with the CCA1 gene (master clock control) (Gutiérrez et al 2008).…”

Section: With Various Concentrations Of No3mentioning

confidence: 83%

“…root length, root number) of the seedlings of tolerant genotypes examined inter alia in laboratory conditions with low levels of N or K are consistent with QTL localization for grain yield, N uptake, NUE (nutrient use efficiency) confirming that these traits constitute significant criteria of genotype selection for low-input systems (Tuberosa et al 2002;Liu et al 2008;Górny et al 2011;Hoffmann et al 2012). Detailed references to QTLs described for root architecture at seedling stage and traits of mature plant in field conditions may be found in the studies of Liu et al (2008) In summary it should be concluded that plant requirements for N or K are fulfilled by their effective uptake, and in the case of deficiencies by re-arrangement of plant genomes that suitably adjust their metabolism to changing conditions (Shin and Schachtman, 2004;Krouk et al 2010;Tsay et al 2011;Smolik, 2013a). Active response to nutrition stress is a result of the root architecture and efficiency of mechanisms re-mobilizing or allocating assimilates to the roots.…”

Section: Discussionmentioning

confidence: 99%

“…In the event of NO3 -deficiency, CHL1 is subject to phosphorylation, as it is a high-affinity transporter, and the changes in the expression of genes engaged in nitrate response are small, while NRT2.1 is subject to upregulation. With an excess of NO3, CHL1 (in T101) is dephosphorylated, functions as a low-affinity transporter, and primary nitrate response genes are significantly upregulated (Tsay et al 2011). It should be added that the process of the phosphorylation or possible dephosphorylation of CHL1 also involves other transporter genes, such as CIPK23 (calcineurin B-like interaction protein kinase 23) and CIPK8, expressed at a similar time, but independently of external NO3 -ion concentrations (low-or high-affinity response, respectively) (Xu et al 2006;Castaings et al 2009;Tsay et al 2011).…”

Section: Despite the Fact That No3mentioning

confidence: 99%

“…Generally, plants under K-deprived conditions exhibit poorly developed roots. Root-hair elongation is stimulated, but lateral root elongation is inhibited (Jung et al 2009;Tsay et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Chromosomal localization of selected SCARs converted from new RAPD, ISSR and R-ISSR markers linked to rye (Secale cereale L.) tolerance to nutrient deprivation stress identified using bulk segregant analysis

Smolik¹

2013

Electron. J. Biotechnol.

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Background: An adaptive mechanism in plant roots is initiated in the event of nitrogen and potassium deficiency, and it facilitates the active uptake of these elements in order to ensure plant growth and survival in stress conditions. Signaling and transduction of signals in response to changing nitrogen and potassium concentrations is a complex process, affected by interactions between various gene expression products, and often subjected to modifications. Results: In order to identify genotypic differences between phenotypes of two populations of recombinant inbred rye lines (153/79-1 x Ot1-3 and Ot0-6 x Ot1-3) in response to nutrition stress caused by nitrogen and potassium deficiency at the seedling stage, bulk segregant analysis was utilized. Identification of genotypic differences between and within pooled DNA samples involved 424 RAPD, 120 ISSR primers and 50 combinations of R-ISSR. Identified markers were sequenced and converted to SCAR, attributing to them unique ESTs annotations, and chromosomal ones to selected localizations. Significant relationships with the examined trait were described for nine and eight RAPD markers, four and five ISSR, one and three R-ISSR markers for population 153/79-1 x Ot1-3 and Ot0-6 x Ot1-3, respectively. Sequences identified for the rye genome were characterized by a uniqueness and a similarity to the sequence of aquaporin PIP1, a gene encoding protein related to the function of the transcription factor in plant response to iron deficiency and the putative ethylene-responsive transcription factor, cytosolic acetyl-CoA carboxylase, HvHKT1 transporter, as well as HCBT proteins. Conclusion: Identified molecular markers differentiating rye genotypes of extreme response of root system on nitrogen and potassium deficiency play a significant role in systemic plant response to stress, including stress caused by nitrogen and potassium deficiency. They may constitute a system facilitating selection, and together with the material they are described in, they may be a starting point for research on mechanisms of sensing and transduction of signal across the plant.

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Section: With Various Concentrations Of No3mentioning

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Despite the Fact That No3mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chromosomal localization of selected SCARs converted from new RAPD, ISSR and R-ISSR markers linked to rye (Secale cereale L.) tolerance to nutrient deprivation stress identified using bulk segregant analysis

Smolik¹

2013

Electron. J. Biotechnol.

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“…It was demonstrated that effective utilization of nitrogen ions by a plant depends on availability of potassium ions (Ashraf and Harris, 2005;Tsay et al, 2011). Species of cultivated plants have a wide range of genotypic variability predisposing a plant to growth under the conditions of decreased mineral fertilization, and an important factor that determines this adaptation is a complex and genetically complicated trait -root architecture.…”

Section: Introductionmentioning

confidence: 99%

Agronomic Properties Assessed for Population of Recombinant Inbred Lines of Rye (Seceale cereale L.) with Known Responses to Nutrient Deficiency Stress at the Seedling Stage

Smolik

2013

Not Bot Hort Agrobot Cluj

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The experiment was established and carried out in light and slightly acidic soil in the years [2008][2009][2010]. The research material included one hundred thirty-eight RILs (F 8:10 ) of rye with known response to nutrient stress were determined at the seedling stage obtained in vitro in mature embryos cultures and in two parental inbred lines and F 1 . The following factors were determined in the full maturity stage of each RIL: plant height, spike length, plant tillering, spikelet number per spike, grain number per spike, spike fertility, grain weight per spike, grain weight per plant and 1000 grain weight. Differences in the examined traits were found between parental inbred lines, and the heterosis effect was observed in F 1 hybrid. The range of variability of the examined functional traits demonstrated in the population of RILs proved the transgression effect. The analyzed RILs were arranged into six groups and described with the use of Ward's agglomerative method and grouping variables: spike fertility, grain weight per spike and per plant, thousand grain weight. Significant differences were found among other things between spike morphology and fertility traits and yield per a plant. The possibility of selection of RILs with extreme traits described both in the field and laboratory experiments in comparison with known tolerance to nutrient stress was described. The obtained correlation coefficients for the examined functional traits of RILs were in accordance with those published in reference literature. The correlation coefficients determined for selected seedling traits from the laboratory experiment and for selected traits of a mature plant may prove the usefulness of the test in studies on selection of genotypes desired for sustainable agriculture or for research on heritability of traits of tolerance to nutrient stress.

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Phenotypic and Developmental Plasticity in Plants

Palmer

Bush

Maloof

2012

Encyclopedia of Life Sciences

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Plants have a remarkable ability to alter their development in response to myriad environmental cues or stress. This phenotypic plasticity allows them to continually adapt to their local environment, a necessity for plants as sessile organisms. A host of environmental cues can be interpreted by plants, including light, temperature and nutrients, and these inputs are integrated and translated into a range of developmental outputs from shoot elongation, regulation of root gravitropism, altered flowering time, growth cessation of leaves, and timing of germination. This plasticity enables growth optimisation for the local environment, allows range expansion into hetergeneous habitats, and may provide an advantage as the changing climate affects growth conditions around the globe. Using model organisms such as Arabidopsis , molecular mechanisms for plastic growth responses are becoming more defined. Studies of growth and plasticity in less‐characterized species could expand our knowledge of the range of plasticity present in nature. Key Concepts: Multiple environmental signals are integrated to regulate plant development. Plasticity gives plants the ability to optimise growth in varied environments. Developmental plasticity comes from the meristem, which continuously produces organs throughout the plant life cycle. Environmental cues can lead to changes in mRNA and protein abundance or activity, or they can be stored as epigenetic changes. Roots and shoots respond to different environmental conditions but employ similar cellular processes. Plants’ ability to optimise growth for a local environment may provide an advantage as habitats are altered by the changing climate.

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Integration of Nitrogen and Potassium Signaling

Cited by 128 publications

References 95 publications

Chromosomal localization of selected SCARs converted from new RAPD, ISSR and R-ISSR markers linked to rye (Secale cereale L.) tolerance to nutrient deprivation stress identified using bulk segregant analysis

Chromosomal localization of selected SCARs converted from new RAPD, ISSR and R-ISSR markers linked to rye (Secale cereale L.) tolerance to nutrient deprivation stress identified using bulk segregant analysis

Agronomic Properties Assessed for Population of Recombinant Inbred Lines of Rye (Seceale cereale L.) with Known Responses to Nutrient Deficiency Stress at the Seedling Stage

Phenotypic and Developmental Plasticity in Plants

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