cyclo-Oxylipin-galactolipids in plants: occurrence and dynamics

Böttcher, Christine; Weiler, Elmar W.

doi:10.1007/s00425-007-0511-5

Cited by 65 publications

(63 citation statements)

References 49 publications

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“…The upregulation of some of these early JA biosynthesis genes in developing pxa1-1 seeds suggests that there might be an increased flux of precursors including OPDA through the JA biosynthesis pathway. A large amount of OPDA and dnOPDA is found esterified in chloroplast galactolipids in Arabidopsis (Stelmach et al, 2001;Hisamatsu et al, 2003Hisamatsu et al, , 2005Andersson et al, 2006;Buseman et al, 2006;Nakajyo et al, 2006;Bö ttcher and Weiler, 2007;Kourtchenko et al, 2007). Stelmach et al (2001) showed that OPDA esterified at the sn1 position in galactolipids could be released by sn1-specific lipases.…”

Section: Accumulation Of Oxylipins In Cts/pxa1 Seedsmentioning

confidence: 99%

“…Dinor-oxo-phytodienoic acid (dnOPDA) is a 16-carbon homolog of OPDA that is synthesized from 16:3 fatty acid via a parallel hexadecanoid pathway (Weber et al, 1997;Acosta and Farmer, 2010). OPDA and dnOPDA containing galactolipids have been found in Arabidopsis, indicating that these compounds also exist in an esterified form (Stelmach et al, 2001;Hisamatsu et al, 2003Hisamatsu et al, , 2005Andersson et al, 2006;Buseman et al, 2006;Nakajyo et al, 2006;Bö ttcher and Weiler, 2007;Kourtchenko et al, 2007;Glauser et al, 2008). OPDA is transported from the plastid to the peroxisome, where CTS has been shown to be involved in its transport into the peroxisome (Theodoulou et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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12-Oxo-Phytodienoic Acid Accumulation during Seed Development Represses Seed Germination inArabidopsis

et al. 2011

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Arabidopsis thaliana COMATOSE (CTS) encodes an ABC transporter involved in peroxisomal import of substrates for b-oxidation. Various cts alleles and mutants disrupted in steps of peroxisomal b-oxidation have previously been reported to exhibit a severe block on seed germination. Oxylipin analysis on cts, acyl CoA oxidase1 acyl CoA oxidase2 (acx1 acx2), and keto acyl thiolase2 dry seeds revealed that they contain elevated levels of 12-oxo-phytodienoic acid (OPDA), jasmonic acid (JA), and JA-Ile. Oxylipin and transcriptomic analysis showed that accumulation of these oxylipins occurs during late seed maturation in cts. Analysis of double mutants generated by crossing cts with mutants in the JA biosynthesis pathway indicate that OPDA, rather than JA or JA-Ile, contributes to the block on germination in cts seeds. We found that OPDA was more effective at inhibiting wild-type germination than was JA and that this effect was independent of CORONATINE INSENSITIVE1 but was synergistic with abscisic acid (ABA). Consistent with this, OPDA treatment increased ABA INSENSITIVE5 protein abundance in a manner that parallels the inhibitory effect of OPDA and OPDA+ABA on seed germination. These results demonstrate that OPDA acts along with ABA to regulate seed germination in Arabidopsis.

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Section: Accumulation Of Oxylipins In Cts/pxa1 Seedsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

12-Oxo-Phytodienoic Acid Accumulation during Seed Development Represses Seed Germination inArabidopsis

et al. 2011

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“…Arabidopsis contains OPDA esterified to membrane lipids, classified as arabidopsides (Stelmach et al, 2001;Hisamatsu et al, 2003Hisamatsu et al, , 2005Andersson et al, 2006;Buseman et al, 2006;Nakajyo et al, 2006;Bö ttcher and Weiler, 2007;Kourtchenko et al, 2007). Arabidopsides were described to possess senescencepromoting , growth-inhibiting (Nakajyo et al, 2006), antimicrobial (Andersson et al, 2006), and antifungal (Stelmach et al, 2001;Kourtchenko et al, 2007) properties.…”

Section: Oxylipin Accumulation Induced By Gs-inherent Lipase Activitymentioning

confidence: 99%

“…It was also proposed that arabidopsides function as storage molecules for OPDA and serve as substrates for JA biosynthesis (Kourtchenko et al, 2007). It was already shown that arabidopside levels are highly induced by wounding (Stelmach et al, 2001;Buseman et al, 2006;Bö ttcher and Weiler, 2007). Dabrowska et al (2009) proposed that OPDA has a direct negative influence on herbivores; accordingly, arabidopsides may act as direct defense compounds against herbivores.…”

Section: Oxylipin Accumulation Induced By Gs-inherent Lipase Activitymentioning

confidence: 99%

Lipase Activity in Insect Oral Secretions Mediates Defense Responses in Arabidopsis

et al. 2011

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How plants perceive herbivory is not yet well understood. We investigated early responses of the model plant Arabidopsis (Arabidopsis thaliana) to attack from the generalist grasshopper herbivore, Schistocerca gregaria (Caelifera). When compared with wounding alone, S. gregaria attack and the application of grasshopper oral secretions (GS) to puncture wounds elicited a rapid accumulation of various oxylipins, including 13-hydroperoxy octadecatrienoic acid, 12-oxo-phytodienoic acid (OPDA), jasmonic acid, and jasmonic acid-isoleucine. Additionally, GS increased cytosolic calcium levels, mitogen-activated protein kinase (MPK3 and MPK6) activity, and ethylene emission but not the accumulation of hydrogen peroxide. Although GS contain caeliferin A16:0, a putative elicitor of caeliferan herbivores, treatment with pure, synthetic caeliferin A16:0 did not induce any of the observed responses. With mutant plants, we demonstrate that the observed changes in oxylipin levels are independent of MPK3 and MPK6 activity but that MPK6 is important for the GS-induced ethylene release. Biochemical and pharmacological analyses revealed that the lipase activity of GS plays a central role in the GS-induced accumulation of oxylipins, especially OPDA, which could be fully mimicked by treating puncture wounds only with a lipase from Rhizopus arrhizus. GS elicitation increased the levels of OPDA-responsive transcripts. Because the oral secretions of most insects used to study herbivory-induced responses in Arabidopsis rapidly elicit similar accumulations of OPDA, we suggest that lipids containing OPDA (arabidopsides) play an important role in the activation of herbivory-induced responses.

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“…Species-It has been reported that arabidopsides occur only in A. thaliana and Arabidopsis arenosa but not in any other plant species examined so far (38). We examined whether MGDG-oxoacids were present in cabbage (B. oleracea, Brassicaceae), tobacco (N. tabacum, Solanaceae), tomato (S. lycopersicum, Solanaceae), and common bean (P. vulgaris, Fabaceae) ( Table 3).…”

Section: Mgdg-oxoacids In Other Plantmentioning

confidence: 99%

Traumatin- and Dinortraumatin-containing Galactolipids in Arabidopsis

Nakashima

Reuß

Tasaka

et al. 2013

Journal of Biological Chemistry

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Background:The pathway to form green leaf volatiles is important for plant defense against pathogens and herbivores. Results: Galactolipids with truncated oxoacids are formed as counterparts of green leaf volatiles. Conclusion: Galactolipid-hydroperoxides are substrates for hydroperoxide lyase. Significance: The biosynthetic pathway partly proceeds directly with galactolipids, without the involvement of lipases, to form free fatty acids.

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cyclo-Oxylipin-galactolipids in plants: occurrence and dynamics

Cited by 65 publications

References 49 publications

12-Oxo-Phytodienoic Acid Accumulation during Seed Development Represses Seed Germination inArabidopsis

12-Oxo-Phytodienoic Acid Accumulation during Seed Development Represses Seed Germination inArabidopsis

Lipase Activity in Insect Oral Secretions Mediates Defense Responses in Arabidopsis

Traumatin- and Dinortraumatin-containing Galactolipids in Arabidopsis

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