Nitrate Uptake Affects Cell Wall Synthesis and Modeling

Landi, Simone; Esposito, Sergio

doi:10.3389/fpls.2017.01376

Cited by 33 publications

(27 citation statements)

References 52 publications

(76 reference statements)

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“…On the other hand, nitrate specifically down-regulates the transcription of genes related to hemicellulose synthesis and transport (Figure 4). Accordingly, similar expression profiles have been recently evidenced in Arabidopsis [61] and rice [62], suggesting that cell wall remodeling might be important for the enhanced nitrate uptake and a correct plant growth. Nevertheless, the exact molecular mechanism by which the N status affects cell wall modelling is still unknown [63].…”

Section: Discussionsupporting

confidence: 67%

Nitrate and Ammonium Affect the Overall Maize Response to Nitrogen Availability by Triggering Specific and Common Transcriptional Signatures in Roots

Ravazzolo

Trevisan

Forestan

et al. 2020

IJMS

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Nitrogen (N) is an essential macronutrient for crops. Plants have developed several responses to N fluctuations, thus optimizing the root architecture in response to N availability. Nitrate and ammonium are the main inorganic N forms taken up by plants, and act as both nutrients and signals, affecting gene expression and plant development. In this study, RNA-sequencing was applied to gain comprehensive information on the pathways underlying the response of maize root, pre-treated in an N-deprived solution, to the provision of nitrate or ammonium. The analysis of the transcriptome shows that nitrate and ammonium regulate overlapping and distinct pathways, thus leading to different responses. Ammonium activates the response to stress, while nitrate acts as a negative regulator of transmembrane transport. Both the N-source repress genes related to the cytoskeleton and reactive oxygen species detoxification. Moreover, the presence of ammonium induces the accumulation of anthocyanins, while also reducing biomass and chlorophyll and flavonoids accumulation. Furthermore, the later physiological effects of these nutrients were evaluated through the assessment of shoot and root growth, leaf pigment content and the amino acid concentrations in root and shoot, confirming the existence of common and distinct features in response to the two nitrogen forms.

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Section: Discussionsupporting

confidence: 67%

Nitrate and Ammonium Affect the Overall Maize Response to Nitrogen Availability by Triggering Specific and Common Transcriptional Signatures in Roots

Ravazzolo

Trevisan

Forestan

et al. 2020

IJMS

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“…5), suggesting a tight relationship between NP starvations and cell wall formation. Cell wall related genes play a role in N starvation (Landi and Esposito 2017). Two genes, Sb01g029310 and Sb02g019380 from the top 30 connected genes from the cluster 8 were predicted as an expansin and arabinogalactan-protein, respectively (Fig.…”

Section: Discussionmentioning

confidence: 99%

Transcriptome and ionome analysis of nitrogen, phosphorus and potassium interactions in sorghum seedlings

Zhu

Wang

et al. 2020

Theor. Exp. Plant Physiol.

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Nitrogen (N), phosphorus (P) and potassium (K) are essential macronutrients for plant growth and development. Although single N, P, or K starvation responses have been well studied individually at the morphological, physiological and transcriptional levels in many plant species, there is little knowledge about their interaction during the combined NPK starvation response. In this study, we compared sorghum seedling growth performance, nutrient concentrations and gene expression profiles between single N, P, and K and triple nutrient deficiencies (-NPK). The results showed that sorghum seedlings have significantly distinct responses toN ,-P and-K. Plants under-NPK conditions showed highly similar performance as-N-treated plants at multiple levels. Most typical-P-and-K-associated responses were modified in-NPK-treated plants. One common cluster was found between plants treated with-N and-P. Two Pi-deficiency tightly linked clusters were also identified using weighted gene coexpression network analysis. Moreover, we identified several ions transport-related genes and possible interactions between nutrients by combined transcriptome and ionome analyses. In this manuscript, we present a comprehensive transcriptome and ionome comparative analysis of sorghum responses toN ,-P and-K and showed-N is apparently prioritized over-P and-K under-NPK conditions. N starvation has a very strong influence on-P and-K responses, and NPK single starvation signaling was integrated into a combined network under multiple nutrient deficient conditions.

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“…Genes involved in trichoblast differentiation, which contain many cell wall related genes, were particularly enriched in NO 3 − responsive genes [ 9 ]. Additionally, a co-expression analysis of NO 3 − transporters, using the ATTED-II database, revealed that they are co-expressed with many cell wall related genes [ 65 ]. However, caution should be exercised in interpreting this data, as a recent meta-analysis of NO 3 − -response transcriptomic data revealed a striking inconsistency in the reproducibility between different studies, noting that the common number of differentially expressed genes between any two experiments is only 6.7% [ 9 ].…”

Section: Influence Of Nutrient Availability On Cell Wall Compositimentioning

confidence: 99%

Feeding the Walls: How Does Nutrient Availability Regulate Cell Wall Composition?

Ogden

Hoefgen

Roessner

et al. 2018

IJMS

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Nutrients are critical for plants to grow and develop, and nutrient depletion severely affects crop yield. In order to optimize nutrient acquisition, plants adapt their growth and root architecture. Changes in growth are determined by modifications in the cell walls surrounding every plant cell. The plant cell wall, which is largely composed of complex polysaccharides, is essential for plants to attain their shape and to protect cells against the environment. Within the cell wall, cellulose strands form microfibrils that act as a framework for other wall components, including hemicelluloses, pectins, proteins, and, in some cases, callose, lignin, and suberin. Cell wall composition varies, depending on cell and tissue type. It is governed by synthesis, deposition and remodeling of wall components, and determines the physical and structural properties of the cell wall. How nutrient status affects cell wall synthesis and organization, and thus plant growth and morphology, remains poorly understood. In this review, we aim to summarize and synthesize research on the adaptation of root cell walls in response to nutrient availability and the potential role of cell walls in nutrient sensing.

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Nitrate Uptake Affects Cell Wall Synthesis and Modeling

Cited by 33 publications

References 52 publications

Nitrate and Ammonium Affect the Overall Maize Response to Nitrogen Availability by Triggering Specific and Common Transcriptional Signatures in Roots

Nitrate and Ammonium Affect the Overall Maize Response to Nitrogen Availability by Triggering Specific and Common Transcriptional Signatures in Roots

Transcriptome and ionome analysis of nitrogen, phosphorus and potassium interactions in sorghum seedlings

Feeding the Walls: How Does Nutrient Availability Regulate Cell Wall Composition?

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