Plant hormone effects on isoprene emission from tropical tree in <scp><i>Ficus septica</i></scp>

Parveen, Shahanaz; Iqbal, Md. Asif; Mutanda, Ishmael; Harun-Ur-Rashid, Md.; Inafuku, Masashi; Oku, Hirosuke

doi:10.1111/pce.13513

Cited by 11 publications

(18 citation statements)

References 70 publications

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“…Although high rates of isoprene emission are found in some monocot species such as Arundo donax and Phragmites australis , only recently was a monocot isoprene synthase cloned (Li et al, ). Analysis of the ISPS promoter of Ficus septica revealed the presence of cis‐elements for MYC2 (jasmonic acid‐JA signalling) and LHY (a circadian clock protein), which shows that isoprene synthesis can be regulated through modulation of ISPS by hormones and circadian rhythms (Parveen et al, ).…”

Section: Biochemical Control Of Isoprene Emissionmentioning

confidence: 99%

“…Mechanostimulation and wounding of Medicago truncatula led to an increase in transcription of the JA biosynthesis gene 1‐aminocyclopropane‐1‐carboxylate oxidase 2 ( ACO2 ) and 1‐deoxy‐ d ‐xylulose 5‐phosphate synthase 2 ( DXS2‐1 ) of the MEP pathway, with subsequent increases in JA biosynthesis (Tretner, Huth, & Hause, ). Recently, Parveen et al () showed that application of JA to Ficus septica reduces ISPS expression, protein content, and isoprene emission whereas DXS is increased. Analysis of ISPS promoter regions revealed the presence of cis‐elements that can be targeted by transcription factors to alter gene expression in response to JA (Parveen et al, ).…”

Section: Physiological Roles Of Isoprene In Plantsmentioning

confidence: 99%

“…Recently, Parveen et al () showed that application of JA to Ficus septica reduces ISPS expression, protein content, and isoprene emission whereas DXS is increased. Analysis of ISPS promoter regions revealed the presence of cis‐elements that can be targeted by transcription factors to alter gene expression in response to JA (Parveen et al, ). Zuo et al () showed that expression of isoprene synthase and fumigation by isoprene leads to an enhancement of genes involved in JA biosynthesis and signalling.…”

Section: Physiological Roles Of Isoprene In Plantsmentioning

confidence: 99%

“…Isoprene emission can improve plant growth in Arabidopsis thaliana and leads to changes in genes important for stress tolerance (Behnke, Kaiser, et al, ; Harvey & Sharkey, ; Mutanda, Saitoh, et al, ; Parveen et al, ; Zuo et al, ). As such, it may be beneficial to express isoprene synthase in crop plants in order to improve resilience.…”

Section: Physiological Roles Of Isoprene In Plantsmentioning

confidence: 99%

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Isoprene: New insights into the control of emission and mediation of stress tolerance by gene expression

Lantz

Allman

Weraduwage

et al. 2019

Plant Cell & Environment

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Isoprene is a volatile compound produced in large amounts by some, but not all, plants by the enzyme isoprene synthase. Plants emit vast quantities of isoprene, with a net global output of 600 Tg per year, and typical emission rates from individual plants around 2% of net carbon assimilation. There is significant debate about whether global climate change resulting from increasing CO 2 in the atmosphere will increase or decrease global isoprene emission in the future. We show evidence supporting predictions of increased isoprene emission in the future, but the effects could vary depending on the environment under consideration. For many years, isoprene was believed to have immediate, physical effects on plants such as changing membrane properties or quenching reactive oxygen species. Although observations sometimes supported these hypotheses, the effects were not always observed, and the reasons for the variability were not apparent. Although there may be some physical effects, recent studies show that isoprene has significant effects on gene expression, the proteome, and the metabolome of both emitting and nonemitting species. Consistent results are seen across species and specific treatment protocols.This review summarizes recent findings on the role and control of isoprene emission from plants.

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Section: Biochemical Control Of Isoprene Emissionmentioning

confidence: 99%

Section: Physiological Roles Of Isoprene In Plantsmentioning

confidence: 99%

Section: Physiological Roles Of Isoprene In Plantsmentioning

confidence: 99%

Section: Physiological Roles Of Isoprene In Plantsmentioning

confidence: 99%

See 2 more Smart Citations

Isoprene: New insights into the control of emission and mediation of stress tolerance by gene expression

Lantz

Allman

Weraduwage

et al. 2019

Plant Cell & Environment

View full text Add to dashboard Cite

show abstract

“…The authors hypothesize that the interaction between JA and auxin modulates IspS gene expression via the transcription factor MYC2 (Parveen et al . 2019). However, MYC2 only explained 27% of the total variation in IspS expression, suggesting the occurrence of an additional transcription factor or intermediate signal transducer to control IspS (Fig.…”

Section: Discussionmentioning

confidence: 99%

Plant hormone profile and control over isoprene biosynthesis in a tropical tree Ficus septica

et al. 2022

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Plant hormone signalling and the circadian clock have been implicated in the transcriptional control of isoprene biosynthesis. To gain more insight into the hormonal control of isoprene biosynthesis, the present study measured plant hormone concentrations in jasmonic acid (JA)‐treated leaves of our previous model study, examined their relationship with gene expression of isoprene synthase (IspS) and hormone signalling transcription factors. Of the plant hormones, IAA and JA‐Ile and their related transcription factors (MYC2 and SAUR21) were significantly correlated with IspS gene expression. Concentrations of cytokinins, isopentenyladenine (iP), trans‐zeatin riboside (tZR) and cis‐zeatin riboside (cZR), were similarly significantly correlated with IspS expression. However, there was no significant correlation between their related transcription factor (ARR‐B) and IspS expression. The circadian clock‐related gene PRR7, but not the transcription factor LHY, was highly correlated with IspS expression. These results suggest that the hormonal balance between JA‐Ile and IAA plays a central role in transcriptional regulation of IspS through the transcription factors MYC2 and SAUR21, the early auxin responsive genes. The putative cis‐acting elements for SAUR on the IspS promoter (TGTCNN and CATATG), in addition to the G‐box for MYC2, support the above proposal. These results provide insightful information on the core components of plant hormone‐related regulation of IspS under coordination with the circadian clock genes.

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Characterization of promoter elements of isoprene‐responsive genes and the ability of isoprene to bind START domain transcription factors

et al. 2023

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Isoprene has recently been proposed to be a signaling molecule that can enhance tolerance of both biotic and abiotic stress. Not all plants make isoprene, but all plants tested to date respond to isoprene. We hypothesized that isoprene interacts with existing signaling pathways rather than requiring novel mechanisms for its effect on plants. We analyzed the cis‐regulatory elements (CREs) in promoters of isoprene‐responsive genes and the corresponding transcription factors binding these promoter elements to obtain clues about the transcription factors and other proteins involved in isoprene signaling. Promoter regions of isoprene‐responsive genes were characterized using the Arabidopsis cis‐regulatory element database. CREs bind ARR1, Dof, DPBF, bHLH112, GATA factors, GT‐1, MYB, and WRKY transcription factors, and light‐responsive elements were overrepresented in promoters of isoprene‐responsive genes; CBF‐, HSF‐, WUS‐binding motifs were underrepresented. Transcription factors corresponding to CREs overrepresented in promoters of isoprene‐responsive genes were mainly those important for stress responses: drought‐, salt/osmotic‐, oxidative‐, herbivory/wounding and pathogen‐stress. More than half of the isoprene‐responsive genes contained at least one binding site for TFs of the class IV (homeodomain leucine zipper) HD‐ZIP family, such as GL2, ATML1, PDF2, HDG11, ATHB17. While the HD‐zipper‐loop‐zipper (ZLZ) domain binds to the L1 box of the promoter region, a special domain called the steroidogenic acute regulatory protein‐related lipid transfer, or START domain, can bind ligands such as fatty acids (e.g., linolenic and linoleic acid). We tested whether isoprene might bind in such a START domain. Molecular simulations and modeling to test interactions between isoprene and a class IV HD‐ZIP family START‐domain‐containing protein were carried out. Without membrane penetration by the HDG11 START domain, isoprene within the lipid bilayer was inaccessible to this domain, preventing protein interactions with membrane bound isoprene. The cross‐talk between isoprene‐mediated signaling and other growth regulator and stress signaling pathways, in terms of common CREs and transcription factors could enhance the stability of the isoprene emission trait when it evolves in a plant but so far it has not been possible to say what how isoprene is sensed to initiate signaling responses.

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Plant hormone effects on isoprene emission from tropical tree in Ficus septica

Cited by 11 publications

References 70 publications

Isoprene: New insights into the control of emission and mediation of stress tolerance by gene expression

Isoprene: New insights into the control of emission and mediation of stress tolerance by gene expression

Plant hormone profile and control over isoprene biosynthesis in a tropical tree Ficus septica

Characterization of promoter elements of isoprene‐responsive genes and the ability of isoprene to bind START domain transcription factors

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