Ruth Welti

..Such lipidomic analyses have been used to uncover roles for lipids in plant response to stresses and to identify in vivo functions of genes involved in lipid metabolism...

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..These data form the basis for a working hypothesis that the stress-specific signatures of ox-lipids, like those of oxylipins, are indicative of their functions...

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..Good precision is obtained when data are acquired for approximately 1 min per sample...

..The rapid accumulation of high levels of galactolipid species containing OPDA-OPDA and OPDA-dnOPDA in wounded leaves is consistent with these lipids being the primary products of plastidic oxylipin biosynthesis...

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..Our results suggest that PLDγs play a role in membrane lipid modulation under Al stress and that high activities of PLDγs negatively modulate plant tolerance to Al...

..The data demonstrate that, during natural ageing, PLDα affects the soybean phospholipid profile and the TAG profile. Suppression of PLD activity in soybean seed has potential for improving seed quality during long-term storage...

..Plastid glycerolipid composition was altered in the sfd1 mutant plant, suggesting that SFD1 is involved in lipid metabolism and that an SFD1 product lipid(s) is important for the activation of SAR...

..These results indicate that PLDzeta1 and PLDzeta2 play a role in regulating root development in response to nutrient limitation...

..The results indicate that these glucosyltransferases account for much of the accumulation of the sterol conjugates in wild-type Arabidopsis seeds...

..Additionally, the identities of over 500 reported membrane lipid molecular species are assembled...

..The polar lipid compositional changes are considered in relation to recent data that demonstrate phosphatidylcholine acyl editing...

..This would be consistent with PLD playing a positive role in that conversion. The data indicate that soybean PLD attenuation is a potentially useful approach to altering properties of edible and industrial soybean lecithin...

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..These results demonstrate that activation of oleate-stimulated PLDdelta constitutes an important step in the plant response to H2O2 and increasing plant stress tolerance...

..Time-of-flight secondary ion mass spectrometry (TOF-SIMS) is particularly suited for imaging of tissues and cells...

..Because the levels of plastid complex lipid species containing hexadecatrienoic acid are depressed in all of the sfd ssi2 npr1 plants, we propose that these lipids are involved in the manifestation of the ssi2-conferred phenotypes...

..These data indicate that IR-induced intestinal damage requires antibodies for Cox-2 stimulated PGE(2) production but not for production of lysoPC and free AA...

..Combined with T. gondii genomic data, these lipidomic data will assist in elucidation of metabolic pathways for lipid biosynthesis in this important human pathogen...

..These findings suggest that lipid composition of wheat leaves may be a determining factor in the resistance response of cultivars to tan spot...

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..The decrease in the amount of linoleic acid in complex lipids correlates well with the amount of 9-HPOD and colneleic acid produced...

..These data suggest a negative role for PLDalpha1 and a positive role for PLDdelta in freezing tolerance...

..The study shows that AtPLAI is an acyl hydrolase, rather than a specific phospholipase A. AtPLAI is involved in basal JA production and Arabidopsis resistance to the necrotrophic fungus B. cinerea...

..These data suggest that PLDalpha3 positively mediates plant responses to hyperosmotic stresses and that increased PLDalpha3 expression and associated lipid changes promote root growth, flowering, and stress avoidance...

..Structurally diverse compounds from complicated biological matrices are determined with high selectivity and sensitivity...

..Exact mass analysis of its fragments confirmed the identity of palmitoyl,colneloyl phosphatidylinositol. To our knowledge, this work represents the first identification of a colneleoyl phospholipid...

..A high level of PLDalpha1 is detrimental to seed quality, and attenuation of PLDalpha1 expression has the potential to improve oil stability, seed quality and seed longevity...

..The regulatory processes in which PA has been implicated include signaling pathways in cell growth, proliferation, reproduction, and responses to hormones and biotic and abiotic stresses...

..The results suggest that hydrolysis of phosphatidylcholine by PLD zetas during phosphorus starvation contributes to the supply of inorganic phosphorus for cell metabolism and diacylglycerol moieties for galactolipid synthesis...

..They also demonstrate the utility of the Abca3 null mouse as a model for a devastating human disease...

..These results suggest that droplets play a central role in ether lipid metabolism and intracellular lipid traffic...

..In addition, JA did not co-purify with the SAR-inducing activity confirming that JA is not the mobile signal in SAR...

..DGLE was detected in other Apicomplexa (i.e., Neospora, Plasmodium, Babesia, and Cryptosporidium)...

..These results provide biochemical and genetic evidence that plastid-synthesized tocopherols modulate ER PUFA metabolism early in the LT adaptation response of Arabidopsis...

..This low-energy tandem mass spectrometric approach also permits the structures of the Arabidopsis PGs that consist of two isomeric structures to be unveiled...