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Grimmig, Bernhard; Gonzalez-Perez, Maria N.; Leubner‐Metzger, Gerhard; Vögeli‐Lange, Regina; Meins, Fred; Hain, Rüdiger; Peñuelas, Josep; Heidenreich, Bernd; Langebartels, Christian; Ernst, D.; Sandermann, Heinrich

doi:10.1023/a:1022385104386

Cited by 39 publications

(5 citation statements)

References 41 publications

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“…Both the JA and ethylene signalling pathways have previously been shown to have a role in STS transcription [31-33,74,78,79]. Faurie et al [80] were able to show that co-treatment of Cabernet sauvignon suspension cells with methyl-jasmonate (MeJ) + Ethephon (ethylene) not only led to both a higher level of total stilbenes and VvSTS transcription compared to treatment with either elicitor alone, but also resulted in a biphasic pattern of transcription which was not observed in cells treated with MeJ or Ethephon only.…”

Section: Discussionmentioning

confidence: 99%

Genome-wide analysis of the grapevine stilbene synthase multigenic family: genomic organization and expression profiles upon biotic and abiotic stresses

et al. 2012

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BackgroundPlant stilbenes are a small group of phenylpropanoids, which have been detected in at least 72 unrelated plant species and accumulate in response to biotic and abiotic stresses such as infection, wounding, UV-C exposure and treatment with chemicals. Stilbenes are formed via the phenylalanine/polymalonate-route, the last step of which is catalyzed by the enzyme stilbene synthase (STS), a type III polyketide synthase (PKS). Stilbene synthases are closely related to chalcone synthases (CHS), the key enzymes of the flavonoid pathway, as illustrated by the fact that both enzymes share the same substrates. To date, STSs have been cloned from peanut, pine, sorghum and grapevine, the only stilbene-producing fruiting-plant for which the entire genome has been sequenced. Apart from sorghum, STS genes appear to exist as a family of closely related genes in these other plant species.ResultsIn this study a complete characterization of the STS multigenic family in grapevine has been performed, commencing with the identification, annotation and phylogenetic analysis of all members and integration of this information with a comprehensive set of gene expression analyses including healthy tissues at differential developmental stages and in leaves exposed to both biotic (downy mildew infection) and abiotic (wounding and UV-C exposure) stresses. At least thirty-three full length sequences encoding VvSTS genes were identified, which, based on predicted amino acid sequences, cluster in 3 principal groups designated A, B and C. The majority of VvSTS genes cluster in groups B and C and are located on chr16 whereas the few gene family members in group A are found on chr10. Microarray and mRNA-seq expression analyses revealed different patterns of transcript accumulation between the different groups of VvSTS family members and between VvSTSs and VvCHSs. Indeed, under certain conditions the transcriptional response of VvSTS and VvCHS genes appears to be diametrically opposed suggesting that flow of carbon between these two competing metabolic pathways is tightly regulated at the transcriptional level.ConclusionsThis study represents an overview of the expression pattern of each member of the STS gene family in grapevine under both constitutive and stress-induced conditions. The results strongly indicate the existence of a transcriptional subfunctionalization amongst VvSTSs and provide the foundation for further functional investigations about the role and evolution of this large gene family. Moreover, it represents the first study to clearly show the differential regulation of VvCHS and VvSTS genes, suggesting the involvement of transcription factors (TFs) in both the activation and repression of these genes.

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Section: Discussionmentioning

confidence: 99%

Genome-wide analysis of the grapevine stilbene synthase multigenic family: genomic organization and expression profiles upon biotic and abiotic stresses

et al. 2012

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“…PR gene expression is up-regulated in response to both pathogen attack and abiotic stresses (22,23), and previous studies have identified a central role for the Arabidopsis heterotrimeric G protein as an early mediator of plant stress signaling (24)(25)(26). The Arabidopsis genome encodes a single canonical heterotrimeric G protein ␣ and ␤ subunit and two ␥ subunits (27).…”

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confidence: 99%

Heterotrimeric G protein signaling in theArabidopsisunfolded protein response

Wang

Narendra

Fedoroff

2007

Proc. Natl. Acad. Sci. U.S.A.

104

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We present evidence that heterotrimeric G protein signaling is involved in cell death associated with the unfolded protein response (UPR) in Arabidopsis. Seedlings of homozygous agb1-2 (G␤-null mutation) mutant plants are markedly more resistant to growth inhibition by the protein glycosylation inhibitor tunicamycin (Tm) than either wild-type plants or gpa1-4 (G␣-null mutation) mutants. Leaves of older G␤ mutant plants show much less cell death when infiltrated with Tm than leaves of wild-type plants. The transcriptional response of G␤ mutant plants to Tm is less pronounced than that of wild-type plants, as is the accumulation of BiP chaperone proteins. A majority of the Arabidopsis G␤ protein is associated with the endoplasmic reticulum (ER) and cofractionates with membrane-associated ER luminal BiP. Consistent with its ER localization, G␤ protein is degraded during the UPR, whereas G␣ protein is not. Taken together, these observations imply that the G␤ protein, which forms a stable heterodimer with the G␥ subunit, is involved in the signaling events that trigger UPR-associated cell death. The different Tm sensitivities of G␣ and G␤ mutants, the ER localization of G␤, and the differential stabilities of G␣ and G␤ proteins during the UPR suggest that the G␤␥ complex serves a signaling function in the ER independent of its function in the G␣␤␥ heterotrimer.endoplasmic reticulum ͉ tunicamycin

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“…The genetic variation of O 3 tolerance in these species has been attributed to a range of factors, including foliar phenolic composition ( 19 ), effective pathways of ascorbate-glutathione detoxification, remobilization of amino acids ( 20 ), genetic plasticity, chemical composition of foliar surface waxes ( 21 , 22 ), stomatal closure, and foliar structural traits, such as apoplastic volume, thickness, and leaf dry mass per unit area (LMA) ( 18 , 23 ). Model species such as Arabidopsis thaliana clearly indicate that O 3 tolerance is due to a unique set of alterations of various defensive mechanisms, e.g., signaling pathways, regulatory genes, plant hormones, antioxidants, and physiological processes (function and regulation of stomata) ( 24 , 25 ). These indicators of tolerance can be useful for individual plants or plant mixtures but are challenging in studies at evolutionary and population levels.…”

Section: Introductionmentioning

confidence: 99%

Ozone affects plant, insect, and soil microbial communities: A threat to terrestrial ecosystems and biodiversity

et al. 2020

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Elevated tropospheric ozone concentrations induce adverse effects in plants. We reviewed how ozone affects (i) the composition and diversity of plant communities by affecting key physiological traits; (ii) foliar chemistry and the emission of volatiles, thereby affecting plant-plant competition, plant-insect interactions, and the composition of insect communities; and (iii) plant-soil-microbe interactions and the composition of soil communities by disrupting plant litterfall and altering root exudation, soil enzymatic activities, decomposition, and nutrient cycling. The community composition of soil microbes is consequently changed, and alpha diversity is often reduced. The effects depend on the environment and vary across space and time. We suggest that Atlantic islands in the Northern Hemisphere, the Mediterranean Basin, equatorial Africa, Ethiopia, the Indian coastline, the Himalayan region, southern Asia, and Japan have high endemic richness at high ozone risk by 2100.

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Cited by 39 publications

References 41 publications

Genome-wide analysis of the grapevine stilbene synthase multigenic family: genomic organization and expression profiles upon biotic and abiotic stresses

Genome-wide analysis of the grapevine stilbene synthase multigenic family: genomic organization and expression profiles upon biotic and abiotic stresses

Heterotrimeric G protein signaling in theArabidopsisunfolded protein response

Ozone affects plant, insect, and soil microbial communities: A threat to terrestrial ecosystems and biodiversity

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