Role of Phytohormones and miRNAs in Nitrogen and Sulphur Deficiency Stress Signaling in Plants

Iqrar, Sadia; Abdin, M.Z.

doi:10.1007/978-3-319-42183-4_14

Cited by 3 publications

(5 citation statements)

References 142 publications

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“…Because, a transcriptional repressor, DELLA1 that suppressed the expression of SPL9 gene in the favor of miR172. It has been thought that SPL 9, SPL13 and SPL15 are expressed consistently throughout the developmental transition in the shoot apical meristem (SAM) [47,128,129]. In view of these facts that the miR156 and miR172 both act as a sequential antagonist of each other in young and mature plant tissues, respectively.…”

Section: The Mir156 Master Regulator To Synchronize Complex Biologicmentioning

confidence: 99%

“…To increase fermentable sugar or yield of biofuels, it requires to improve the relative amount of cell wall components, like cellulose or non-structural carbohydrates, reduced lignin content, and expression of endogenous hydrolyzing proteins that support more saccharification process [148,149]. Recently, large numbers of miRNAs and genes have been examined, which regulate cell wall synthesis, compositions, and bio-recalcitrance in a wide variety of plants [129,148,150]. It is well known that bio-recalcitrance is a major limiting factor that is mainly responsible for up to 45-55% total cost of biofuel production [108,151].…”

Section: The Role Of Mir156 In the Reduction Of Bio-recalcitrancementioning

confidence: 99%

“…The role of different 80 families of plant miRNAs has been investigated in diverse plant species. These miRNAs are highly significant in the assimilation of macronutrients, their transport mechanisms, and metabolisms, under different growing conditions [162,163,170]. The roles of miRNAs related to nitrogen metabolism are widely studied in bioenergy plants also including, sorghum [70], and Populus [164].…”

Section: The Role Of Mir156 In Nutrient Use Efficiency (Nue)mentioning

confidence: 99%

“…Hence, lignocellulosic crops must be able to grow on degraded land without applying expensive nitrogen and phosphate-based fertilizers during their cultivation. TFs, which engaged in regulation, absorption, and transport of N, P, and S, are well documented in Arabidopsis, rice, and maize plants [44,68,129,167].…”

Section: The Role Of Mir156 In Nutrient Use Efficiency (Nue)mentioning

confidence: 99%

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The miR156: A Master Regulator to Harmonize Complex Biofuel Traits in Lignocellulosic Biomass Crops

Singh¹

2020

Preprint

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Currently, energy security and environmental degradation are the two biggest challenges before humanity that can be surmounted with the use of green and sustainable biofuels produced from lignocellulosic crops. In the future, to ensure adequate and cost-effective supply of biofuels, it requires a sufficient amount of amenable and quality lignocellulosic feedstocks. Therefore, agricultural yields of lignocellulosic biomass crops should be substantially increased by intense genetic maneuvering of key gene regulatory mechanisms and signaling pathways that control plant biomass yield. Recently, numerous miRNAs families are identified, characterized, and validated across the plant kingdom. Plant microRNAs (miRNAs) are 21 to 24 nucleotides long, non-coding small RNAs, act as regulators of their target genes via inducing modifications in transcription, translation, and epigenome. MiRNAs represent many hallmark characteristics like sequence-specific regulation, tissue, and species-specific expression, evolutionary conservation, and functional diversity. They coordinate well physiological and life cycle processes in plants under adverse environmental conditions. Hence, miRNAs offer accurate, precise, and efficient regulatory switches in the miRNA-targeted genetic networks. It is evident from the study of the miR156 family and its target SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes network that controls highly significant agronomic traits in crop plants. The miR156/SPL module acts as a master circuit that synchronizes many intricate complex biological functions such as growth and development, and metabolic processes by sensing internal and external environmental signals in plants. Therefore, miR156 can prove a potential target for miRNAs based plant biotechnology to harmonize complex biofuel traits and improve biomass yield in lignocellulosic biomass crops.

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Section: The Mir156 Master Regulator To Synchronize Complex Biologicmentioning

confidence: 99%

Section: The Role Of Mir156 In the Reduction Of Bio-recalcitrancementioning

confidence: 99%

Section: The Role Of Mir156 In Nutrient Use Efficiency (Nue)mentioning

confidence: 99%

Section: The Role Of Mir156 In Nutrient Use Efficiency (Nue)mentioning

confidence: 99%

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The miR156: A Master Regulator to Harmonize Complex Biofuel Traits in Lignocellulosic Biomass Crops

Singh¹

2020

Preprint

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“…Plants mainly uptake sulfur from the soil in the form of sulfate, and within the plants, sulfate either remains in the roots or is transported via the xylem to the leaves, the main sites of sulfate reduction and assimilation. , The sulfate distribution processes within the plant are controlled by sulfate transporters (SULTRs). , Uptake and distribution of sulfate within the plant are demand-driven processes, and not only sulfate itself but also cysteine and/or glutathione (GSH) are supposed to serve as signals in this regulation. , The response includes increased expression of several sulfate transporters and enzymes involved in sulfate assimilation such as ATP sulfurylase (ATPS) and adenosine 5-phosphosulfate (APS) and reductase (APR). , …”

Section: Introductionmentioning

confidence: 99%

Set of miRNAs Involved in Sulfur Uptake and the Assimilation Pathway of Indian Mustard (B. juncea) in Response to Sulfur Treatments

et al. 2022

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MicroRNAs (miRNAs) play an important role in the regulation of gene expression. They play a regulatory role in various nutrient assimilatory pathways of plants; however, their role in the regulation of sulfur uptake and assimilatory pathways in mustard cultivars under high/low sulfur conditions is not elucidated. Sulfur is essential for plant growth and development, and its deficiency can cause a decline in oil seed content and thus lower the economic yield in Brassica juncea . In this study, different miRNAs involved in the regulation of sulfur uptake and assimilation pathways in B. juncea were identified using a psRNA target analyzer and miRanda database tools. The predicted miRNAs that belong to 10 highly conserved families were validated using stem-loop RT-PCR. The B. juncea cultivars Pusa Jaikisan, Pusa Bold, and Varuna were kept in sulfur-excessive (high) and -deficient (insufficient) conditions, and expression studies of miRNAs and their target mRNAs were carried out using qRT-PCR. The correlation between the expression pattern of miRNAs and their target genes showed their potential role in sulfur uptake and assimilation. Analysis with 5′ RACE revealed the authentic target of miRNAs. The influence of S treatments on metabolites and sulfur content was also studied using GC-MS and a CHNS analyzer. Our study showed the potential role of miRNAs in the regulation of sulfur uptake and assimilation and put forward the implications of these molecules to enhance the sulfur content of B. juncea.

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Melatonin alleviates low-sulfur stress by promoting sulfur homeostasis in tomato plants

Hasan

Liu

Pan

et al. 2018

Sci Rep

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Despite involvement of melatonin (MT) in plant growth and stress tolerance, its role in sulfur (S) acquisition and assimilation remains unclear. Here we report that low-S conditions cause serious growth inhibition by reducing chlorophyll content, photosynthesis and biomass accumulation. S deficiency evoked oxidative stress leading to the cell structural alterations and DNA damage. In contrast, MT supplementation to the S-deprived plants resulted in a significant diminution in reactive oxygen species (ROS) accumulation, thereby mitigating S deficiency-induced damages to cellular macromolecules and ultrastructures. Moreover, MT promoted S uptake and assimilation by regulating the expression of genes encoding enzymes involved in S transport and metabolism. MT also protected cells from ROS-induced damage by regulating 2-cysteine peroxiredoxin and biosynthesis of S-compounds. These results provide strong evidence that MT can enhance plant tolerance to low-S-induced stress by improving S uptake, metabolism and redox homeostasis, and thus advocating beneficial effects of MT on increasing the sulfur utilization efficiency.

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Role of Phytohormones and miRNAs in Nitrogen and Sulphur Deficiency Stress Signaling in Plants

Cited by 3 publications

References 142 publications

The miR156: A Master Regulator to Harmonize Complex Biofuel Traits in Lignocellulosic Biomass Crops

The miR156: A Master Regulator to Harmonize Complex Biofuel Traits in Lignocellulosic Biomass Crops

Set of miRNAs Involved in Sulfur Uptake and the Assimilation Pathway of Indian Mustard (B. juncea) in Response to Sulfur Treatments

Melatonin alleviates low-sulfur stress by promoting sulfur homeostasis in tomato plants

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