Plant Biology: Brassinosteroids and the Intracellular Auxin Shuttle

Rana, Surbhi; Hardtke, Christian S.

doi:10.1016/j.cub.2020.02.073

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…That might have led to increasing the content of N in treated plant leaves. Moreover, it has been reported that the BRs in uence long-distance signalling by regulating the auxin transport 29 . Probably this might have interfered with the activities of mineral content parameters and hence their higher values for N, P and K in treated plants (Fig.…”

Section: Discussionmentioning

confidence: 99%

Exogenous epibrassinolide application improves essential oil biosynthesis and trichome development in peppermint via modulating growth and physicochemical processes

Parrey

Shah

Mohammad

et al. 2023

Preprint

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Peppermint has gained a promising status due to the presence of a high proportion of bioactive compounds especially menthol. Due to its pharmacological efficacy, the demand for its plant-based bioactive compounds necessitates its cultivation worldwide. Brassinosteroids are polyhydroxylated sterol derivatives that regulate diverse processes and control many agronomic traits during plant growth and development. A factorial randomised pot experiment was performed in the net house to investigate the effect of 24-Epibrassinolide (EBL) on the growth, physiology, essential oil content, stomatal behaviour and trichome development of the three cultivars of peppermint. Four levels of foliage-applied EBL, viz. 0, 10− 5, 10− 6 and 10− 7 M were applied on the three cultivars of peppermint (Kukrail, Pranjal and Tushar). Among the different treatments of EBL on Kukrail, Tushar and Pranjal, the application of 10− 6 M increased shoot length by 38.84, 37.59 and 36.91%, root length by 36.73, 29.44 and 33.47%, respectively. Whereas chlorophyll content by 24.20, 22.48 and 23.32%, PN by 32.88, 32.61 and 33.61%, respectively. Further, EO content was enhanced by 32.72, 30.00 and 28.84%, EO yield per plant by 66.66, 77.77 and 73.33%, menthol yield per plant by 127.27, 110 and 118.18% compared with their respective control plants. The scanning electron microscopical analysis revealed increased trichome size and density whereas, the confocal laser scanning microscopical analysis revealed enhanced cellular viability in the treated plants as compared with the control. Moreover, the GC-MS analysis revealed the enhanced essential oil content particularly menthol in the treated plants over the control.

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Section: Discussionmentioning

confidence: 99%

Exogenous epibrassinolide application improves essential oil biosynthesis and trichome development in peppermint via modulating growth and physicochemical processes

Parrey

Shah

Mohammad

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…That might have led to increasing the content of N in treated plant leaves. Moreover, it has been reported that the EBL influences long-distance signalling by regulating the auxin transport 33 . Probably this might have interfered with the activities of mineral element parameters and hence higher values for leaf N, P and K in EBL-treated plants (Fig.…”

Section: Discussionmentioning

confidence: 99%

Exogenous epibrassinolide application improves essential oil biosynthesis and trichome development in peppermint via modulating growth and physicochemical processes

Parrey

Shah

Mohammad

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Peppermint has gained a promising status due to the presence of a high proportion of bioactive compounds, especially menthol. Due to its pharmacological efficacy, the demand for its plant-based bioactive compounds necessitates its cultivation worldwide. Brassinosteroids are polyhydroxylated sterol derivatives that regulate diverse processes and control many agronomic traits during plant growth and development. A factorial randomised pot experiment was performed in the net house to investigate the effect of 24-Epibrassinolide (EBL) on the growth, physiology, essential oil content, stomatal behaviour and trichome development of the three cultivars of peppermint. Four levels of foliage-applied EBL, viz. 0, 10–5, 10–6 and 10–7 M were applied to the three cultivars of peppermint (Kukrail, Pranjal and Tushar). Among the different treatments of EBL, the application of 10–6 M increased shoot length by 38.84, 37.59 and 36.91%, root length by 36.73, 29.44 and 33.47%, chlorophyll content by 24.20, 22.48 and 23.32%, PN by 32.88, 32.61 and 33.61%, EO content by 32.72, 30.00 and 28.84%, EO yield per plant by 66.66, 77.77 and 73.33% and menthol yield per plant by 127.27, 110 and 118.18% in Kukrail, Tushar and Pranjal respectively, compared with their respective control plants. Further, the 10–6 M EBL exhibited improved trichome size and density, cellular viability and menthol content of the oil analysed from scanning electron microscopy, confocal laser scanning microscopy and GC–MS respectively as compared to the control. In conclusion, out of different levels of EBL, two sprays of 10–6 M EBL proved effective in enhancing the morphophysiological features and productivity of mint plants, particularly for cultivar Kukrail.

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“…It depends on the activated proton pump of the plasma membrane (AUTOINHIBITED PLASMA MEMBRANE H + -ATPases), such as AHA1 which interacts with BRI1 (Caesar et al, 2011). A new study reveals that the main effect of BR signalling is on the distribution of auxin in the cell, which has a major impact on nuclear auxin signaling (Rana and Hardtke, 2020). The BR signal controls PIN-LIKEdependent nuclear abundance of auxin (Sun et al, 2020).…”

Section: Ttl3 Affects Lateral Root Emergence and Developmentmentioning

confidence: 99%

The Arabidopsis TTL3 protein interconnects brassinosteroid signalling and cytoskeleton during lateral root development

Xin

Schier

Dubrovsky

et al. 2020

Preprint

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Lateral roots are essential components of the plant edaphic interface, contributing to water and nutrient uptake, biotic and abiotic interactions, stress survival, and plant anchorage. We have identified the TETRATRICOPEPTIDE-REPEAT THIOREDOXIN-LIKE 3 (TTL3) being related to lateral root emergence and later development. TTL3 interacts with microtubules and potentially interconnects cytoskeletal function with the brassinosteroid signalling pathway. Loss of function of TTL3 leads to a reduced number of emerged lateral roots due to delayed development of lateral root primordia. Lateral root growth of the ttl3 mutant is less sensitive to BR treatment. Timing and spatial distribution of TTL3 expression is consistent with its role in development of lateral root primordia before their emergence and subsequent development into lateral roots. TTL3 is a novel component of the root system morphogenesis regulatory network.

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Plant Biology: Brassinosteroids and the Intracellular Auxin Shuttle

Cited by 5 publications

References 22 publications

Exogenous epibrassinolide application improves essential oil biosynthesis and trichome development in peppermint via modulating growth and physicochemical processes

Exogenous epibrassinolide application improves essential oil biosynthesis and trichome development in peppermint via modulating growth and physicochemical processes

Exogenous epibrassinolide application improves essential oil biosynthesis and trichome development in peppermint via modulating growth and physicochemical processes

The Arabidopsis TTL3 protein interconnects brassinosteroid signalling and cytoskeleton during lateral root development

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