Nitrate affects transcriptional regulation of UPBEAT1 and ROS localisation in roots of <i>Zea mays</i> L.

Trevisan, Sara; Trentin, Anna Rita; Ghisi, R.; Masi, Antonio; Quaggiotti, Silvia

doi:10.1111/ppl.12839

Cited by 20 publications

(26 citation statements)

References 66 publications

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“…However, the genes specifically expressed in root hair cells, such as ROBHC/RHD2 and RHD6, which may be induced by nutrients, seem to validate this relationship ( Table 1). A recent study further confirmed that nitrite could affect the expression of UPBEAT1 and localization of ROS in Zea mays L. roots (Trevisan et al, 2019).…”

Section: Nutrient Stress Regulates Root Hair Developmentmentioning

confidence: 74%

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Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana

Zhou

et al. 2020

Front. Plant Sci.

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Reactive oxygen species (ROS), a type of oxygen monoelectronic reduction product, have a higher chemical activity than O 2. Although ROS pose potential risks to all organisms via inducing oxidative stress, indispensable role of ROS in individual development cannot be ignored. Among them, the role of ROS in the model plant Arabidopsis thaliana is deeply studied. Mounting evidence suggests that ROS are essential for root and root hair development. In the present review, we provide an updated perspective on the latest research progress pertaining to the role of ROS in the precise regulation of root stem cell maintenance and differentiation, redox regulation of the cell cycle, and root hair initiation during root growth. Among the different types of ROS, O 2 •− and H 2 O 2 have been extensively investigated, and they exhibit different gradient distributions in the roots. The concentration of O 2 •− decreases along a gradient from the meristem to the transition zone and the concentration of H 2 O 2 decreases along a gradient from the differentiation zone to the elongation zone. These gradients are regulated by peroxidases, which are modulated by the UPBEAT1 (UPB1) transcription factor. In addition, multiple transcriptional factors, such as APP1, ABO8, PHB3, and RITF1, which are involved in the brassinolide signaling pathway, converge as a ROS signal to regulate root stem cell maintenance. Furthermore, superoxide anions (O 2 •−) are generated from the oxidation in mitochondria, ROS produced during plasmid metabolism, H 2 O 2 produced in apoplasts, and catalysis of respiratory burst oxidase homolog (RBOH) in the cell membrane. Furthermore, ROS can act as a signal to regulate redox status, which regulates the expression of the cell-cycle components CYC2;3, CYCB1;1, and retinoblastoma-related protein, thereby controlling the cell-cycle progression. In the root maturation zone, the epidermal cells located in the H cell position emerge to form hair cells, and plant hormones, such as auxin and ethylene regulate root hair formation via ROS. Furthermore, ROS accumulation can influence hormone signal transduction and vice versa. Data about the association between nutrient stress and ROS signals in root hair development are scarce. However, the fact that ROBHC/RHD2 or RHD6 is specifically expressed in root hair cells and induced by nutrients, may explain the relationship. Future studies should focus on the regulatory

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Section: Nutrient Stress Regulates Root Hair Developmentmentioning

confidence: 74%

“…•− ) gradient distribution in the root meristem (Tsukagoshi et al, 2010;Perilli et al, 2012;Del Pozo, 2016). This distribution is affected by the nitrate nutrient (Trevisan et al, 2019).…”

Section: Gradient Distribution Of Ros Regulates Root Stem Cell Differmentioning

confidence: 99%

Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana

Zhou

et al. 2020

Front. Plant Sci.

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“…A number of genes belonging to the group of nitrate transporters and of ROS metabolism were selected basing both on previous results (Trevisan et al 2017 [20]) and on their putative physiological role (Table 1). Table 1.…”

Section: Biostimulant Regulation Of Gene Expressionmentioning

confidence: 99%

“…However, no results on its effects in abiotic stress conditions were gained until now. Our various results with this species indicate that maize is able to sense and rapidly respond to nutritional fluctuations already after hours or minutes of treatment [17][18][19][20]. Therefore in the present work, we tried to deepen the effects of APR®, supplied in in hydroponic, in affecting the early response of maize seedlings to abiotic stresses.…”

Section: Introductionmentioning

confidence: 98%

A Novel Biostimulant, Belonging to Protein Hydrolysates, Mitigates Abiotic Stress Effects on Maize Seedlings Grown in Hydroponics

2019

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The main challenge to agriculture worldwide is feeding a rapidly growing human population, developing more sustainable agricultural practices that do not threaten human and ecosystem health. An innovative solution relies on the use of biostimulants, as a tool to enhance nutrient use efficiency and crop performances under sub-optimal conditions. In this work a novel biostimulant (APR®, ILSA S.p.A., Arzigano VI, Italy), belonging to the group of protein hydrolysates, was supplied to maize seedlings in hydroponic and its effects were assessed in control conditions and in the presence of three different kinds of stresses (hypoxia, salt and nutrient deficiency) and of their combination. Our results indicate that APR® is soluble and is able to influence root and shoot growth depending on its concentration. Furthermore, its effectiveness is clearly increased in condition of single or combination of abiotic stresses, thus confirming the previously hypothesised action of this substance as enhancer of the response to environmental adversities. Moreover, it also regulates the transcription of a set of genes involved in nitrate transport and ROS metabolism. Further work will be needed to try to transfer this basic knowledge in field experiments.

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“…Furthermore, the presence of either nitrate or ammonium clearly affect the content of various metabolites and the activity of many enzymes [16][17][18][19][20][21]. Actually, metabolic and signaling responses to N provision also include redox homeostasis adjustments, which in turn may influence the global response to abiotic stress [22][23][24][25]. Over the past few decades, besides improving crop productivity [26], the intensification of the application of N fertilizers also triggered adverse and sometimes conflicting effects on plant-pathogen interactions [27] and plant disease development [28].…”

Section: Introductionmentioning

confidence: 99%

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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Nitrate affects transcriptional regulation of UPBEAT1 and ROS localisation in roots of Zea mays L.

Cited by 20 publications

References 66 publications

Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana

Modulatory Role of Reactive Oxygen Species in Root Development in Model Plant of Arabidopsis thaliana

A Novel Biostimulant, Belonging to Protein Hydrolysates, Mitigates Abiotic Stress Effects on Maize Seedlings Grown in Hydroponics

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

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