Wheat Myo-inositol phosphate synthase influences plant growth and stress responses via ethylene mediated signaling

Sharma, Naveen; Chaudhary, Chanderkant; Khurana, Paramjit

doi:10.1038/s41598-020-67627-w

Cited by 27 publications

(19 citation statements)

References 42 publications

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“…Our previous study with myo -inositol phosphate synthase (MIPS) suggest its role in ethylene response 50 . To further assess the role of myo -inositol (MI) in ethylene response, we analyzed the effect of myo -inositol on etiolated seedlings of Arabidopsis Col-0.…”

Section: Resultsmentioning

confidence: 99%

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Role of myo-inositol during skotomorphogenesis in Arabidopsis

Sharma

Chaudhary

Khurana

2020

Sci Rep

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Myo-inositol is a ubiquitous metabolite of plants. It is synthesized by a highly conserved enzyme L-myo-inositol phosphate synthase (MIPS; EC 5.5.1.4). Myo-inositol is well characterized during abiotic stress tolerance but its role during growth and development is unclear. In this study, we demonstrate that the apical hook maintenance and hypocotyl growth depend on myo-inositol. We discovered the myo-inositol role during hook formation and its maintenance via ethylene pathway in Arabidopsis by supplementation assays and qPCR. Our results suggest an essential requirement of myo-inositol for mediating the ethylene response and its interaction with brassinosteroid to regulate the skotomorphogenesis. A model is proposed outlining how MIPS regulates apical hook formation and hypocotyl growth.

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Section: Resultsmentioning

confidence: 99%

“…FHY3 and FAR1 in maintenance of optimal level of myo-inositol via directly binding to the promoter of MIPS1 and activating its expression 39 . Recent study of MIPS has revealed its critical role in growth and immunity via ethylene 50 .…”

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confidence: 99%

Role of myo-inositol during skotomorphogenesis in Arabidopsis

Sharma

Chaudhary

Khurana

2020

Sci Rep

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“…Furthermore, the expression levels of some salt stress responsive marker genes, including KIN1, RD29A, RD29B, P5Cs, and COR47, were significantly more UR in overexpression of GsMIPS2 lineages than that of the wild type and the mutant atmips2. Finally, Sharma et al (2020) showed that a MIPS influenced plant growth and heat stress responses by an ethylene‐mediated signaling in wheat. Under drought conditions, ethylene causes leaf abscission and consequently reduces water loss (Oh et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

“…Finally, Sharma et al (2020) showed that a MIPS influenced plant growth and heat stress responses by an ethylene-mediated signaling in wheat. Under drought conditions, ethylene causes leaf abscission and consequently reduces water loss (Oh et al, 1997).…”

Section: Transcriptionally Constitutive Enzymes Throughout the Assaymentioning

confidence: 99%

Importance of inositols and their derivatives in cowpea under root dehydration: An omics perspective

Ferreira‐Neto

Silva

Rodrigues

et al. 2020

Physiologia Plantarum

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This work presents a robust analysis of the inositols (INSs) and raffinose family oligosaccharides (RFOs) pathways, using genomic and transcriptomic tools in cowpea under root dehydration. Nineteen (70%) of the 26 scrutinized enzymes presented transcriptional up-regulation in at least one treatment time. The transcriptional orchestration allowed categorization of the analyzed enzymes as time-independent (those showing the same regulation throughout the assay) and time-dependent (those showing different transcriptional regulation over time). It is suggested that upregulated time-independent enzymes (INSs: myo-inositol oxygenase, inositoltetrakisphosphate 1-kinase 3, phosphatidylinositol 4-phosphate 5-kinase 4-like, 1-phosphatidylinositol-3-phosphate 5-kinase, phosphoinositide phospholipase C, and non-specific phospholipase C; RFOs: α-galactosidase, invertase, and raffinose synthase) actively participate in the reorganization of cowpea molecular physiology under the applied stress. In turn, time-dependent enzymes, especially those upregulated in some of the treatment times (INSs: inositol-pentakisphosphate 2-kinase, phosphatidylinositol 4-kinase, phosphatidylinositol synthase, multiple inositol polyphosphate phosphatase 1, methylmalonate-semialdehyde dehydrogenase, triosephosphate isomerase, myo-inositol-3-phosphate synthase, phosphatidylinositol

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“…The role of inositol in plant hormone signaling has been driving more and more attention, and protecting the auxin to facilitated its phloem long-distance transport remains the most discussed role of inositol on auxin signaling [98]. Recent exploration of Myo-inositol phosphate (MIPS) roles in wheat growth under heat stress suggested the MIPS as essential for orchestrating the ethylene reaction and modulate plant growth and resistance to abiotic stress [99]. Additionally, Myo-inositol mediates the ROS programming cell death via ethylene-dependent and salicylic acid-dependent pathways.…”

Section: Int In Plant Hormone Distributionmentioning

confidence: 99%

Tonoplast Inositol Transporters: Roles in Plant Abiotic Stress Response and Crosstalk with Other Signals

Zhou¹,

Ic²,

H³

2021

Preprint

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Inositol transporter (INT) is reputed as the pivotal transporter for vital metabolites like lipids, minerals, and sugars particularly. These transporters play important role in transitional metabolism and various signaling pathways in plants through regulating the transduction of messages from hormones, neurotransmitters, and immunologic and growth factors. Extensive studies have been conducted on animal INT with promising outcomes. However, few recent studies have highlighted the importance and the complexity of INT genes in the regulation of plant physiology stages including growth and tolerance to stress conditions. The present review sum-up the most recent findings on the role of INT or inositol genes in plant metabolisms and the responsive mechanisms that cope with external stressors. Moreover, we highlighted the emerging role of vacuoles and vacuolar inositol transporters in plant molecular transition and their related roles in plant growth and development. Inositol transporters are the essential mediator for the inositol uptake and its intracellular broadcasting for various metabolic pathways where they play crucial roles. Also, so far characterized only in animals, we reported evidence on Na+/inositol transporters H+/inositol symporters and suggested their roles and operating mode in plants. Thus, understanding the INT functioning system, the coordinated movement of inositol, and the relation between inositol generation and other important plant signaling pathways would be an excellent asset for advancement in researches on plant stress adaptation.

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Wheat Myo-inositol phosphate synthase influences plant growth and stress responses via ethylene mediated signaling

Cited by 27 publications

References 42 publications

Role of myo-inositol during skotomorphogenesis in Arabidopsis

Role of myo-inositol during skotomorphogenesis in Arabidopsis

Importance of inositols and their derivatives in cowpea under root dehydration: An omics perspective

Tonoplast Inositol Transporters: Roles in Plant Abiotic Stress Response and Crosstalk with Other Signals

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