Identification of quantitative trait loci associated with tolerance to low potassium and related ions concentrations at seedling stage in rice (Oryza sativa L.)

Fang, Yunxia; Wu, Weiming; Zhang, Xiaoqin; Jiang, Hua; Lu, Wenyi; Pan, Jianlin; Hu, Jiang; Guo, Longbiao; Xue, Dawei

doi:10.1007/s10725-015-0047-9

Cited by 21 publications

(5 citation statements)

References 18 publications

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“…Seeds of Nipponbare rice were sterilized with 2% H 2 O 2 for 30 min, rinsed with distilled water three times, and then incubated for two days in the dark at 26 °C. The seedlings were cultured and transplanted as previously described 25 . The nutrient solution was prepared according to an established protocol 26 and contained 2.9 mM NH 4 NO 3 , 0.32 mM NaH 2 PO 4 , 1.0 mM K 2 SO 4 , 1.0 mM CaCl 2 , 1.7 mM MgSO 4 · 7H 2 O, 9.1 × 10 −3 mM MnCl 2 · 4H 2 O, 5.2 × 10 −4 mM (NH 4 ) 6 MoO 24 · 4H 2 O, 1.8 × 10 −2 mM H 3 BO 3 , 1.5 × 10 −4 mM ZnSO 4 · 7H 2 O, 1.6 × 10 −4 mM CuSO 4 · 5H 2 O, and 3.6 × 10 −2 mM FeCl 3 · 6H 2 O.…”

Section: Methodsmentioning

confidence: 99%

“…We previously screened a group of rice germplasm accessions that are tolerant of low potassium during the seedling phase 24 . Additional experiments have confirmed that multiple genes regulate low potassium tolerance in rice and a partial quantitative trait locus for low potassium stress was identified 25 . However, there are few data on the transcriptomics of the response to low potassium stress in rice.…”

Section: Introductionmentioning

confidence: 90%

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Transcriptome Analysis of Rice Seedling Roots in Response to Potassium Deficiency

Zhang

Jiang

Wang

et al. 2017

Sci Rep

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Rice is one of the most important food crops in the world, and its growth, development, yield, and grain quality are susceptible to a deficiency of the macronutrient potassium (K+). The molecular mechanism for K+ deficiency tolerance remains poorly understood. In this study, K+ deficient conditions were employed to investigate the resulting changes in the transcriptome of rice seedling roots. Using ribonucleic acid sequencing (RNA-Seq) and analysis, a total of 805 differentially expressed genes were obtained, of which 536 genes were upregulated and 269 were downregulated. Gene functional classification showed that the expression of genes involved in nutrient transport, protein kinases, transcription processes, and plant hormones were particularly altered in the roots. Although these changes were significant, the expression of most genes remained constant even in K+-deficient conditions. Interestingly, when our RNA-Seq results were compared to public microarray data, we found that most of the genes that were differentially expressed in low K+ conditions also exhibited changes in expression in other environmental stress conditions.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 90%

Transcriptome Analysis of Rice Seedling Roots in Response to Potassium Deficiency

Zhang

Jiang

Wang

et al. 2017

Sci Rep

Self Cite

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“…Yingyan et al 2023), maize(Zea mays L.) (E et al 2020), rice(Oryza sativa L.)(Fang et al 2015) and other plants as research subjects are consistent. Potassium ions are the most abundant cations in plants, accounting for up to 2-10% of the total dry matter in plants(Wengong et al 2019).…”

mentioning

confidence: 82%

Response of Cigar Tobacco Varieties to Potassium Stress and Dissecting Biochemical Determinants of Low Potassium Tolerance Mechanism

Chen,

Wang,

et al. 2024

Preprint

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Potassium content is an important standard for measuring tobacco quality, however research on low potassium tolerance mechanism in cigar tobacco (Nicotiana tabacum L.), which is different from regular tobacco, did not draw researchers attention. This study evaluated the tolerance to low potassium of 23 cigar varieties by studying 20 phenotypic and physiological indicators. Through principal component analysis, membership function analysis, and cluster analysis, the research comprehensively identifies the tolerance of cigar tobacco varieties to low potassium. The results indicate that the tolerance to low potassium of cigar tobacco is complex and varies with different traits and varieties. The present study identified six crucial indicators for measuring tolerance to low potassium in cigar tobacco leaves, including plant height, maximum leaf area, leaf surface area, total root absorption area, and active root absorption area. Based on the comprehensive evaluation value D of the low potassium tolerance coefficient of these six indicators, the study classified 23 cigar varieties and identified 1 low potassium-sensitive variety, 5 low potassium-low tolerance varieties, 11 low potassium-relative tolerant varieties, and 6 low potassium-tolerant varieties. The research outcomes significantly contribute to the elucidation of tolerance to low potassium in cigar tobacco, facilitating the evaluation, screening, and cultivation of cigar tobacco varieties resilient to low potassium conditions. Additionally, this laid the foundation for exploring scientific issues such as how plants can effectively utilize potassium, the mechanism of potassium ions in plants, improvement and development of cigar quality, augmentation of potassium utilization efficiency, and saving limited potassium resources to ensure long-term safety of potassium.

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“…Chromosomal loci influencing KUpE, KUtE, shoot K concentration, or biomass production at low K supply have been identified in a few model species, such as arabidopsis (e.g., Harada and Leigh 2006;Ghandilyan et al 2009;Kanter et al 2010;Prinzenberg et al 2010), and in several crops, including rice (Wu et al 1998;Koyama et al 2001;Lin et al 2004;Cheng et al 2012;Wang et al 2012;Miyamoto et al 2012;Fang et al 2015;Khan et al 2015), wheat (Genc et al 2010Guo et al 2012;Kong et al 2013;Zhao et al 2014;Gong et al 2015), barley (Nguyen et al 2013a, b), maize (Zdunić et al 2014), miscanthus (Miscanthus sinensis Andersson; Atienza et al 2003), tomato (Villalta et al 2008;Asins et al 2013), barrel medic (Medicago truncatula Gaertn. ; Arraouadi et al 2012), Brassica oleracea , apple (Malus pumila Miller; Fazio et al 2013), and cotton (Liu et al 2015).…”

Section: Breeding Crops For Greater Agronomic Potassium Use Efficiencymentioning

confidence: 99%

Potassium Use Efficiency of Plants

White

Bell

Djalović

et al. 2020

Improving Potassium Recommendations for Agricultural Crops

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There are many terms used to define aspects of potassium (K) use efficiency of plants. The terms used most frequently in an agricultural context are (1) agronomic K use efficiency (KUE), which is defined as yield per unit K available to a crop and is numerically equal to the product of (2) the K uptake efficiency (KUpE) of the crop, which is defined as crop K content per unit K available and (3) its K utilization efficiency (KUtE), which is defined as yield per unit crop K content. There is considerable genetic variation between and within plant species in KUE, KUpE, and KUtE. Root systems of genotypes with greatest KUpE often have an ability (1) to exploit the soil volume effectively, (2) to manipulate the rhizosphere to release nonexchangeable K from soil, and (3) to take up K at low rhizosphere K concentrations. Genotypes with greatest KUtE have the ability (1) to redistribute K from older to younger tissues to maintain growth and photosynthesis and (2) to reduce vacuolar K concentration, while maintaining an appropriate K concentration in metabolically active subcellular compartments, either by anatomical adaptation or by greater substitution of K with other solutes in the vacuole. Genetic variation in traits related to KUpE and KUtE might be exploited in breeding crop genotypes that require less K fertilizer. This could reduce fertilizer costs, protect the environment, and slow the exhaustion of nonrenewable resources.

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Identification of quantitative trait loci associated with tolerance to low potassium and related ions concentrations at seedling stage in rice (Oryza sativa L.)

Cited by 21 publications

References 18 publications

Transcriptome Analysis of Rice Seedling Roots in Response to Potassium Deficiency

Transcriptome Analysis of Rice Seedling Roots in Response to Potassium Deficiency

Response of Cigar Tobacco Varieties to Potassium Stress and Dissecting Biochemical Determinants of Low Potassium Tolerance Mechanism

Potassium Use Efficiency of Plants

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