Phenotyping two tomato genotypes with different nitrogen use efficiency

Abenavoli, Maria Rosa; Longo, Caterina; Lupini, Antonio; Miller, Anthony J.; Araniti, Fabrizio; Mercati, Francesco; Princi, Maria Polsia; Sunseri, Francesco

doi:10.1016/j.plaphy.2016.04.021

Cited by 69 publications

(57 citation statements)

References 51 publications

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“…Among physiological traits, NUtE was more influenced by genotype than NUE and NUpE. According to these results, NUtE was recently demonstrated more determinant than NUpE in NUE features in tomato (Abenavoli et al 2016; Lupini et al 2017), representing a useful trait to improve the utilization efficiency in Solanaceae. Therefore, it is noteworthy that the ability to utilize nitrate (NUtE) showed a significant phenotypic variation due to the genetic variance, underlined a rather high heritability (Table ).…”

Section: Discussionmentioning

confidence: 88%

“…Differential gene expression levels among the contrasting genotypes on the nitrate transporters SmNPF6.3 and SmNRT2.1 involved in root formation and acquisition (Garnet et al 2009), confirmed the role of root system to confer N‐use efficiency (Figure ). Indeed, root size plays a critical role in nutrient uptake in tomato (Abenavoli et al 2016; Lupini et al 2017), maize (Li et al 2015) and rapeseed (Wang et al 2017). In eggplants, the N‐key gene expression and enzyme activities highlighted a strong correlation with N‐efficiency.…”

Section: Discussionmentioning

confidence: 99%

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Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO₃^‐ supply

Mauceri

Bassolino²,

Lupini

et al. 2019

JIPB

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Eggplant (Solanum melongena L.) yield is highly sensitive to N fertilization, the excessive use of which is responsible for environmental and human health damage. Lowering N input together with the selection of improved Nitrogen‐Use‐Efficiency (NUE) genotypes, more able to uptake, utilize, and remobilize N available in soils, can be challenging to maintain high crop yields in a sustainable agriculture. The aim of this study was to explore the natural variation among eggplant accessions from different origins, in response to Low (LN) and High (HN) Nitrate (NO3‐) supply, to identify NUE‐contrasting genotypes and their NUE‐related traits, in hydroponic and greenhouse pot experiments. Two eggplants, AM222 and AM22, were identified as N‐use efficient and inefficient, respectively, in hydroponic, and these results were confirmed in a pot experiment, when crop yield was also evaluated. Overall, our results indicated the key role of N‐utilization component (NUtE) to confer high NUE. The remobilization of N from leaves to fruits may be a strategy to enhance NUtE, suggesting glutamate synthase as a key enzyme. Further, omics technologies will be used for focusing on C‐N metabolism interacting networks. The availability of RILs from two other selected NUE‐contrasting genotypes will allow us to detect major genes/quantitative trait loci related to NUE.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO₃^‐ supply

Mauceri

Bassolino²,

Lupini

et al. 2019

JIPB

Self Cite

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“…The dried samples of shoot and root were grounded into a fine powder and around 0.2 g of each sample powder was weighed, digested with sulfuric acid–hydrogen peroxide (H 2 SO 4 –H 2 O 2 ) and were then analyzed for N content using the Bran + Luebbe Continuous‐Flow AutoAnalyzer III (AA3). Different NUE definitions were estimated from the values of N concentrations . The total N accumulation was obtained as the product of N concentrations and plant total dry weight .…”

Section: Methodsmentioning

confidence: 99%

“…Different NUE definitions were estimated from the values of N concentrations. 32 The total N accumulation was obtained as the product of N concentrations and plant total dry weight. 33 Similarly, the N efficiency ratio was measured as total plant dry weight divide by total N accumulation.…”

Section: Measurement Of Macronutrients and Nue Indexesmentioning

confidence: 99%

Nitrogen preference and genetic variation of cotton genotypes for nitrogen use efficiency

et al. 2020

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BACKGROUND Although nitrogen (N) availability is a major determinant of cotton production, little is known about the importance of plants' preference for ammonium versus nitrate for better growth and nitrogen use efficiency (NUE). We aimed to assess the growth, physiology, and NUE of contrasting N‐efficient cotton genotypes (Z‐1017, N‐efficient and GD‐89, N‐inefficient) supplied with low and high concentrations of ammonium‐ and nitrate‐N. RESULTS The results revealed that ammonium fed plants showed poor root growth, lower dry biomass, N content, leaf chlorophyll and gas exchange than those under nitrate irrespective of the concentration. However, the highest N uptake and utilization efficiency were obtained with nitrate fed plants, which also resulted in the highest dry biomass, N content, leaf chlorophyll and gas exchange as well as root growth. The results further confirmed that N‐efficient (Z‐1017) genotype performed better under both N sources, showing more flexibility to contrasting N condition by increasing growth and NUE in either source of N. Moreover, multivariate analysis showed a strong relationship of root morphological traits with N utilization efficiency, suggesting the physiological importance of roots over shoots in response to low nitrate concentration. CONCLUSION Thus, it was confirmed that nitrate‐N is superior to ammonium‐N and the use of nitrate and N‐efficient genotype is the best option for optimum cotton growth and NUE. Further, field evaluation is required to confirm the hypothesis that nitrate is a preferred N source for better cotton production and NUE. © 2020 Society of Chemical Industry

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“…Results showed that the expression of TaNAR2.1 was overall significantly induced by N deficiency in both cultivars which is consistent with the results obtained in tomato. In Reference [41], it was found that the expression of TaNAR2.1 was induced significantly in high N-use efficiency tomato cultivar Regina Ostuni (RO) and low N-use cultivar UC82. The reduction of treatment compared with control is higher in UC82 than that in RO [41].…”

Section: Discussionmentioning

confidence: 99%

Physiological and Proteomic Dissection of the Responses of Two Contrasting Wheat Genotypes to Nitrogen Deficiency

Karim

Wang

Zheng

et al. 2020

IJMS

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Nitrogen deficiency usually occurs along with aluminum toxicity in acidic soil, which is one of the major constraints for wheat production worldwide. In order to compare adaptive processes to N deficiency with different Al-tolerant wheat cultivars, we chose Atlas 66 and Scout 66 to comprehensively analyze the physiological responses to N deficiency, coupled with label-free mass spectrometry-based proteomics analysis. Results showed that both cultivars were comparable in most physiological indexes under N deficient conditions. However, the chlorophyll content in Scout 66 was higher than that of Atlas 66 under N deficiency. Further proteomic analysis identified 5592 and 5496 proteins in the leaves of Atlas 66 and Scout 66, respectively, of which 658 and 734 proteins were shown to significantly change in abundance upon N deficiency, respectively. The majority of the differentially expressed proteins were involved in cellular N compound metabolic process, photosynthesis, etc. Moreover, tetrapyrrole synthesis and sulfate assimilation were particularly enriched in Scout 66. Our findings provide evidence towards a better understanding of genotype-dependent responses under N deficiency which could help us to develop N efficient cultivars to various soil types.

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Phenotyping two tomato genotypes with different nitrogen use efficiency

Cited by 69 publications

References 51 publications

Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO₃^‐ supply

Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO₃^‐ supply

Nitrogen preference and genetic variation of cotton genotypes for nitrogen use efficiency

Physiological and Proteomic Dissection of the Responses of Two Contrasting Wheat Genotypes to Nitrogen Deficiency

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Phenotyping two tomato genotypes with different nitrogen use efficiency

Cited by 69 publications

References 51 publications

Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO3‐ supply

Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO3‐ supply

Nitrogen preference and genetic variation of cotton genotypes for nitrogen use efficiency

Physiological and Proteomic Dissection of the Responses of Two Contrasting Wheat Genotypes to Nitrogen Deficiency

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Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO₃^‐ supply

Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO₃^‐ supply