Lipases and the biosynthesis of free oxylipins in plants

Bonaventure, Gustavo

doi:10.4161/psb.28429

Cited by 8 publications

(6 citation statements)

References 20 publications

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“…The chloroplast protein database dedicated to sub-plastidial localization (PPDB [Plant protein database] and AT_Chloro) indicated that AtAOS is targeted to the envelope and thylakoids of chloroplasts. On the other hand, HPLs show diverse localization patterns; in some plants, HPLs are localized to the lipid bodies (Mita et al 2005), the outer envelope of chloroplasts (Froehlich et al 2001), and the stroma (Bonaventure 2014); in some cases, no specific localization in a particular organelle is observed (Phillips & Galliard 1978;Shibata et al 1995b;Noordermeer et al 2000). TargetP prediction for AtHPL indicated a cytoplasmic localization, while ChloroP prediction indicated a 34-amino acid chloroplast transit peptide.…”

Section: Discussionmentioning

confidence: 99%

Spatial expression of the Arabidopsishydroperoxide lyasegene is controlled differently from that of theallene oxide synthasegene

Mwenda

Matsuki

Nishimura

et al. 2015

Journal of Plant Interactions

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The hydroperoxide lyase (HPL) pathway for six carbon (C6) volatiles and the allene oxide synthase (AOS) pathway for jasmonates (JAs) share the first part of the pathway. To avoid competition, a separate localization of HPL and AOS might be important. A fusion protein comprising Arabidopsis HPL and green fluorescent protein was transported into chloroplasts, where AOS was located. Arabidopsis harboring β-glucuronidase (GUS) gene downstream of Arabidopsis HPL promoter (pAtHPL::GUS) showed different GUS activity in floral organs compared with that from pAtAOS::GUS. With pAtHPL::GUS, wounding enhanced GUS activity at the periphery of cotyledons; while with pAtAOS::GUS, GUS activity was high in the vasculature. The distribution of the ability to form C6 volatiles correlated with the profile of HPL promoter activity; however, this ability unchanged after wounding. Inconsistency between the AOS promoter activity and JA levels was also evident. Thus, an additional factor should also control the ability to form C6 volatiles and JAs.

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Section: Discussionmentioning

confidence: 99%

Spatial expression of the Arabidopsishydroperoxide lyasegene is controlled differently from that of theallene oxide synthasegene

Mwenda

Matsuki

Nishimura

et al. 2015

Journal of Plant Interactions

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“…While it has been assumed that FAs are hydrolysed from membrane lipids (Matsui et al ., ) before further enzymatic reaction, little is known about the identity of specific lipases that play a role in the liberation of FAs for the GLV pathway (Mwenda & Matsui, ). In Arabidopsis , the supply of free FAs for the biosynthesis of the plant hormone jasmonic acid (JA), which is formed via another branch of the oxylipin pathway, is regulated by a number of different lipases, all belonging to the class of phospholipases‐A1 (Bonaventure, ). These lipases can act in different tissues (Ellinger et al ., ), upon different stimuli (Ellinger & Kubigsteltig, ) and at different stages of the stress response.…”

Section: Biosynthesismentioning

confidence: 99%

Green leaf volatile production by plants: a meta‐analysis

et al. 2017

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Summary666I.Introduction667II.Biosynthesis667III.Meta‐analysis669IV.The type of stress influences the total amount of GLVs released669V.Herbivores can modulate the wound‐induced release of GLVs669VI.Fungal infection greatly induces GLV production672VII.Monocots and eudicots respond differentially to different types of stress673VIII.The type of stress does not influence the proportion of GLVs per chemical class673IX.The type of stress does influence the isomeric ratio within each chemical class674X.GLVs: from signal perception to signal transduction676XI.GLVs influence the C/N metabolism677XII.Interaction with plant hormones678XIII.General conclusions and unanswered questions678Acknowledgements679References679 Summary Plants respond to stress by releasing biogenic volatile organic compounds (BVOCs). Green leaf volatiles (GLVs), which are abundantly produced across the plant kingdom, comprise an important group within the BVOCs. They can repel or attract herbivores and their natural enemies; and they can induce plant defences or prime plants for enhanced defence against herbivores and pathogens and can have direct toxic effects on bacteria and fungi. Unlike other volatiles, GLVs are released almost instantly upon mechanical damage and (a)biotic stress and could thus function as an immediate and informative signal for many organisms in the plant's environment. We used a meta‐analysis approach in which data from the literature on GLV production during biotic stress responses were compiled and interpreted. We identified that different types of attackers and feeding styles add a degree of complexity to the amount of emitted GLVs, compared with wounding alone. This meta‐analysis illustrates that there is less variation in the GLV profile than we presumed, that pathogens induce more GLVs than insects and wounding, and that there are clear differences in GLV emission between monocots and dicots. Besides the meta‐analysis, this review provides an update on recent insights into the perception and signalling of GLVs in plants.

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“…Oxylipins are oxygenated derivatives of polyunsaturated fatty acid (PUFA). Their biosynthesis starts by action of lipoxygenase enzymes (LOX) that catalyze regio‐ and stereo‐specific addition of oxygen with formation of hydroperoxide fatty acids (Brash, 1999; d'Ippolito et al ., 2003, 2005; Lion et al ., 2006; Andreou & Feussner, 2009; Andreou et al ., 2009; Mosblech et al ., 2009; Bonaventure, 2014). These latter products are further transformed into a large variety of chemical products, through alternative and subsequent reactions.…”

Section: Introductionmentioning

confidence: 99%

Silencing of a Pseudo‐nitzschia arenysensis lipoxygenase transcript leads to reduced oxylipin production and impaired growth

et al. 2021

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Because of their importance as chemical mediators, the presence of a rich and varied family of lipoxygenase (LOX) products, collectively named oxylipins, has been investigated thoroughly in diatoms, and the involvement of these products in important processes such as bloom regulation has been postulated. Nevertheless, little information is available on the enzymes and pathways operating in these protists.Exploiting transcriptome data, we identified and characterized a LOX gene, PaLOX, in Pseudo-nitzschia arenysensis, a marine diatom known to produce different species of oxylipins by stereo-and regio-selective oxidation of eicosapentaenoic acid (EPA) at C12 and C15.PaLOX RNA interference correlated with a decrease of the lipid-peroxidizing activity and oxylipin synthesis, as well as with a reduction of growth of P. arenysensis. In addition, sequence analysis and structure models of the C-terminal part of the predicted protein closely fitted with the data for established LOXs from other organisms.The presence in the genome of a single LOX gene, whose downregulation impairs both 12and 15-oxylipins synthesis, together with the in silico 3D protein modelling suggest that PaLOX encodes for a 12/15S-LOX with a dual specificity, and provides additional support to the correlation between cell growth and oxylipin biosynthesis in diatoms.

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Lipases and the biosynthesis of free oxylipins in plants

Cited by 8 publications

References 20 publications

Spatial expression of the Arabidopsishydroperoxide lyasegene is controlled differently from that of theallene oxide synthasegene

Spatial expression of the Arabidopsishydroperoxide lyasegene is controlled differently from that of theallene oxide synthasegene

Green leaf volatile production by plants: a meta‐analysis

Silencing of a Pseudo‐nitzschia arenysensis lipoxygenase transcript leads to reduced oxylipin production and impaired growth

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