Spatial expression of the Arabidopsis<i>hydroperoxide lyase</i>gene is controlled differently from that of the<i>allene oxide synthase</i>gene

Mwenda, Cynthia Mugo; Matsuki, Atsushi; Nishimura, Kohji; Koeduka, Takao; Matsui, Kenji

doi:10.1080/17429145.2014.999836

Cited by 13 publications

(10 citation statements)

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“…Stumpe et al (2010) reported that JA is not present in the moss P. patens. In this study, metabolite analysis of M. polymorpha and K. flaccidum showed substantial levels of OPDA but no accumulation of JA and JA-Ile, unlike Arabidopsis and other organisms (Mwenda et al 2015). A similar result was obtained by Yamamoto et al (2015).…”

Section: Discussionsupporting

confidence: 78%

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Biochemical characterization of allene oxide synthases from the liverwort Marchantia polymorpha and green microalgae Klebsormidium flaccidum provides insight into the evolutionary divergence of the plant CYP74 family

Koeduka

Ishizaki

Mwenda

et al. 2015

Planta

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Allene oxide synthases (AOSs) were isolated from liverworts and charophytes. These AOSs exhibited enzymatic properties similar to those of angiosperms but formed a distinct phylogenetic clade. Allene oxide synthase (AOS) and hydroperoxide lyase (HPL) mediate the formation of precursors of jasmonates and carbon-six volatiles, respectively. AOS and HPL utilize fatty acid hydroperoxides and belong to the plant cytochrome P450 74 (CYP74) family that mediates plant defense against herbivores, pathogens, or abiotic stresses. Although members of the CYP74 family have been reported in mosses and other species, the evolution and function of multiple CYP74 genes in plants remain elusive. Here, we show that the liverwort Marchantia polymorpha belongs to a basal group in the evolution of land plants; has two closely related proteins (59% identity), MpAOS1 and MpAOS2, that are similar to moss PpAOS1 (49 and 47% identity, respectively); and exhibits AOS activity but not HPL activity. We also found that the green microalgae Klebsormidium flaccidum, consist of multicellular and non-branching filaments, contains an enzyme, KfAOS, that is similar to PpAOS1 (37% identity), and converts 13-hydroperoxide of linolenic acid to 12-oxo-phytodienoic acid in a coupled reaction with allene oxide cyclase. Phylogenetic analysis showed two evolutionarily distinct clusters. One cluster comprised AOS and HPL from charophytic algae, liverworts, and mosses, including MpAOSs and KfAOS. The other cluster was formed by angiosperm CYP74. Our results suggest that plant CYP74 enzymes with AOS, HPL, and divinyl ether synthase activities have arisen multiple times and in the two different clades, which occurred prior to the divergence of the flowering plant lineage.

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Section: Discussionsupporting

confidence: 78%

“…The MS was used in negative ion mode and ions were detected using multiple reaction monitoring. Quantification was based on the internal standard and standard curves (Mwenda et al 2015).…”

Section: Substrate and Product Specificities Of Recombinant Mpaoss Anmentioning

confidence: 99%

Biochemical characterization of allene oxide synthases from the liverwort Marchantia polymorpha and green microalgae Klebsormidium flaccidum provides insight into the evolutionary divergence of the plant CYP74 family

Koeduka

Ishizaki

Mwenda

et al. 2015

Planta

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“…() there are two ways to accomplish this. First, by a distinct spatiotemporal expression of HPL and AOS (Mwenda et al ., ), and, second, by expression of pathway‐specific LOXs. While some plant species possess pathway‐specific LOXs that feed 13‐HPs either into the AOS branch alone, leading to the formation of JA, or into the HPL branch, leading to the formation of GLVs (Allmann et al ., ; Christensen et al ., ), other plant species have LOXs that can supply substrate to both pathways (Wang et al ., ; Mochizuki et al ., ).…”

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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“…There are two ways to accomplish distinct regulation of each pathway. First, distinct spatiotemporal expression of the enzymes next to LOXs, i.e., HPL and AOS . Alternatively, a distinct set of LOX‐HPL and LOX‐AOS may be expressed.…”

mentioning

confidence: 99%

Arabidopsis lipoxygenase 2 is essential for formation of green leaf volatiles and five‐carbon volatiles

et al. 2016

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Plants biosynthesize a variety of bioactive lipid derivatives, such as green leaf volatiles (GLVs) and jasmonates (JAs). Here we identify a lipoxygenase 2 (LOX2) involved in GLV biosynthesis in Arabidopsis using mutant lines for each of the six LOX isoforms present in Arabidopsis. We found that formation of five carbon volatiles was also dependent on LOX2. LOX2 is known to be involved in formation of JA; thus, LOX2 is apparently versatile in function. The results in this study suggested that LOX2 activity is suppressed in intact cells but activated upon tissue damage to support the rapid GLV‐burst observed in wounded leaves.

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

Cited by 13 publications

References 60 publications

Biochemical characterization of allene oxide synthases from the liverwort Marchantia polymorpha and green microalgae Klebsormidium flaccidum provides insight into the evolutionary divergence of the plant CYP74 family

Biochemical characterization of allene oxide synthases from the liverwort Marchantia polymorpha and green microalgae Klebsormidium flaccidum provides insight into the evolutionary divergence of the plant CYP74 family

Green leaf volatile production by plants: a meta‐analysis

Arabidopsis lipoxygenase 2 is essential for formation of green leaf volatiles and five‐carbon volatiles

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