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Author Jonathan Gershenzon

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Canditate metabolites for ash dieback tolerance in Fraxinus excelsior.

Miguel Nemesio-Gorriz, Riya C Menezes, Christian Paetz, Almuth Hammerbacher, Marijke Steenackers, Kurt Schamp, Monica Höfte, Aleš Svatoš, Jonathan Gershenzon, Gerry C Douglas,

Ash dieback, a forest epidemic caused by the invasive fungus Hymenoscyphus fraxineus, threatens ash trees throughout Europe. Within Fraxinus excelsior populations, a small proportion of genotypes show a low susceptibility to the pathogen. We compared the metabolomes from a cohort of low-susceptibility ash genotypes with a cohort of high-susceptibility ash ... Read more >>

J Exp Bot (Journal of experimental botany)
[2020, 71(19):6074-6083]

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Glucosylation prevents plant defense activation in phloem-feeding insects.

Osnat Malka, Michael L A E Easson, Christian Paetz, Monika Götz, Michael Reichelt, Beate Stein, Katrin Luck, Aleksa Stanišić, Ksenia Juravel, Diego Santos-Garcia, Lilach L Mondaca, Simon Springate, John Colvin, Stephan Winter, Jonathan Gershenzon, Shai Morin, Daniel G Vassão,

The metabolic adaptations by which phloem-feeding insects counteract plant defense compounds are poorly known. Two-component plant defenses, such as glucosinolates, consist of a glucosylated protoxin that is activated by a glycoside hydrolase upon plant damage. Phloem-feeding herbivores are not generally believed to be negatively impacted by two-component defenses due to ... Read more >>

Nat Chem Biol (Nature chemical biology)
[2020, :]

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Evolution of isoprenyl diphosphate synthase-like terpene synthases in fungi.

Guo Wei, Franziska Eberl, Xinlu Chen, Chi Zhang, Sybille B Unsicker, Tobias G Köllner, Jonathan Gershenzon, Feng Chen,

Terpene synthases (TPSs) and trans-isoprenyl diphosphate synthases (IDSs) are among the core enzymes for creating the enormous diversity of terpenoids. Despite having no sequence homology, TPSs and IDSs share a conserved "α terpenoid synthase fold" and a trinuclear metal cluster for catalysis, implying a common ancestry with TPSs hypothesized to ... Read more >>

Sci Rep (Scientific reports)
[2020, 10(1):14944]

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Detoxification of plant defensive glucosinolates by an herbivorous caterpillar is beneficial to its endoparasitic wasp.

Ruo Sun, Rieta Gols, Jeffrey A Harvey, Michael Reichelt, Jonathan Gershenzon, Sagar S Pandit, Daniel G Vassão,

Plant chemical defences impact not only herbivores, but also organisms in higher trophic levels that prey on or parasitize herbivores. While herbivorous insects can often detoxify plant chemicals ingested from suitable host plants, how such detoxification affects endoparasitoids that use these herbivores as hosts is largely unknown. Here, we used ... Read more >>

Mol Ecol (Molecular ecology)
[2020, 29(20):4014-4031]

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The nesting preference of an invasive ant is associated with the cues produced by actinobacteria in soil.

Hongmei Huang, Lu Ren, Huijing Li, Axel Schmidt, Jonathan Gershenzon, Yongyue Lu, Daifeng Cheng,

Soil-dwelling animals are at risk of pathogen infection in soils. When choosing nesting sites, animals could reduce this risk by avoiding contact with pathogens, yet there is currently little evidence. We tested this hypothesis using Solenopsis invicta as a model system. Newly mated queens of S. invicta were found to ... Read more >>

PLoS Pathog (PLoS pathogens)
[2020, 16(9):e1008800]

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Sclerotinia sclerotiorum infection triggers changes in primary and secondary metabolism in Arabidopsis thaliana.

Jingyuan Chen, Chhana Ullah, Daniel Giddings Vassão, Michael Reichelt, Jonathan Gershenzon, Almuth Hammerbacher,

Sclerotinia sclerotiorum is a devastating plant pathogen that causes substantial losses in various agricultural crops. Although plants have developed some well-known defense mechanisms against invasive fungi, much remains to be learned about plant responses to fungal pathogens. In this study we investigated how plant primary and secondary metabolism in the ... Read more >>

Phytopathology (Phytopathology)
[2020, :]

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The reconstruction and biochemical characterization of ancestral genes furnish insights into the evolution of terpene synthase function in the Poaceae.

Katrin Luck, Xinlu Chen, Ayla M Norris, Feng Chen, Jonathan Gershenzon, Tobias G Köllner,

KEY MESSAGE:Distinct catalytic features of the Poaceae TPS-a subfamily arose early in grass evolution and the reactions catalyzed have become more complex with time. The structural diversity of terpenes found in nature is mainly determined by terpene synthases (TPS). TPS enzymes accept ubiquitous prenyl diphosphates as substrates and convert them ... Read more >>

Plant Mol. Biol. (Plant molecular biology)
[2020, 104(1-2):203-215]

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The Product Specificities of Maize Terpene Synthases TPS4 and TPS10 Are Determined both by Active Site Amino Acids and Residues Adjacent to the Active Site.

Tobias G Köllner, Jörg Degenhardt, Jonathan Gershenzon,

Terpene synthases make up a large family of enzymes that convert prenyl diphosphates into an enormous variety of terpene skeletons. Due to their electrophilic reaction mechanism-which involves the formation of carbocations followed by hydride shifts and skeletal rearrangements-terpene synthases often produce complex mixtures of products. In the present study, we ... Read more >>

Plants (Basel) (Plants (Basel, Switzerland))
[2020, 9(5):]

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Analysis of the isoprenoid pathway intermediates, dimethylallyl diphosphate and isopentenyl diphosphate, from crude plant extracts by liquid chromatography tandem mass spectrometry.

Toni Krause, Michael Reichelt, Jonathan Gershenzon, Axel Schmidt,

OBJECTIVE:We sought to develop a sensitive and accurate analytical method for the detection and quantification of IDP and DMADP as well as their monophosphate derivatives in crude plant extracts. METHODS:A liquid chromatography method coupled to tandem mass spectrometry (LC-MS/MS) with multiple reaction monitoring (MRM) was established to measure the amounts ... Read more >>

Phytochem Anal (Phytochemical analysis : PCA)
[2020, :]

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Herbivory meets fungivory: insect herbivores feed on plant pathogenic fungi for their own benefit.

Franziska Eberl, Maite Fernandez de Bobadilla, Michael Reichelt, Almuth Hammerbacher, Jonathan Gershenzon, Sybille B Unsicker,

Plants are regularly colonised by fungi and bacteria, but plant-inhabiting microbes are rarely considered in studies on plant-herbivore interactions. Here we show that young gypsy moth (Lymantria dispar) caterpillars prefer to feed on black poplar (Populus nigra) foliage infected by the rust fungus Melampsora larici-populina instead of uninfected control foliage, ... Read more >>

Ecol. Lett. (Ecology letters)
[2020, 23(7):1073-1084]

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A light-dependent molecular link between competition cues and defence responses in plants.

Guadalupe L Fernández-Milmanda, Carlos D Crocco, Michael Reichelt, Carlos A Mazza, Tobias G Köllner, Tong Zhang, Miriam D Cargnel, Micaela Z Lichy, Anne-Sophie Fiorucci, Christian Fankhauser, Abraham J Koo, Amy T Austin, Jonathan Gershenzon, Carlos L Ballaré,

Growth responses to competition1 and defence responses to the attack of consumer organisms2 are two classic examples of adaptive phenotypic plasticity in plants. However, the mechanistic and functional links between these responses are not well understood. Jasmonates, a family of lipid-derived signals, are potent growth inhibitors and central regulators of ... Read more >>

Nat Plants (Nature plants)
[2020, 6(3):223-230]

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Author Correction: The use of Leaf Surface Contact Cues During Oviposition Explains Field Preferences in the Willow Sawfly Nematus Oligospilus.

Patricia C Fernández, Celina L Braccini, Camila Dávila, Romina B Barrozo, M Victoria Coll Aráoz, Teresa Cerrillo, Jonathan Gershenzon, Michael Reichelt, Jorge A Zavala,

An amendment to this paper has been published and can be accessed via a link at the top of the paper. ... Read more >>

Sci Rep (Scientific reports)
[2020, 10(1):2788]

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The Occurrence of Sulfated Salicinoids in Poplar and Their Formation by Sulfotransferase1.

Nathalie D Lackus, Andrea Müller, Tabea D U Kröber, Michael Reichelt, Axel Schmidt, Yoko Nakamura, Christian Paetz, Katrin Luck, Richard L Lindroth, C Peter Constabel, Sybille B Unsicker, Jonathan Gershenzon, Tobias G Köllner,

Salicinoids form a specific class of phenolic glycosides characteristic of the Salicaceae. Although salicinoids accumulate in large amounts and have been shown to be involved in plant defense, their biosynthesis is unclear. We identified two sulfated salicinoids, salicin-7-sulfate and salirepin-7-sulfate, in black cottonwood (Populus trichocarpa). Both compounds accumulated in high ... Read more >>

Plant Physiol. (Plant physiology)
[2020, 183(1):137-151]

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Foliar herbivory by caterpillars and aphids differentially affects phytohormonal signalling in roots and plant defence to a root herbivore.

Peter N Karssemeijer, Michael Reichelt, Jonathan Gershenzon, Joop van Loon, Marcel Dicke,

Plant-mediated interactions are an important force in insect ecology. Through such interactions, herbivores feeding on leaves can affect root feeders. However, the mechanisms regulating the effects of above-ground herbivory on below-ground herbivores are poorly understood. Here, we investigated the performance of cabbage root fly larvae (Delia radicum) on cabbage plants ... Read more >>

Plant Cell Environ. (Plant, cell & environment)
[2020, 43(3):775-786]

Cited: 3 times

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Improving Phenolic Total Content and Monoterpene in Mentha x piperita by Using Salicylic Acid or Methyl Jasmonate Combined with Rhizobacteria Inoculation.

Lorena Del Rosario Cappellari, Maricel Valeria Santoro, Axel Schmidt, Jonathan Gershenzon, Erika Banchio,

The effects of plant inoculation with plant growth-promoting rhizobacteria (PGPR) and those resulting from the exogenous application of salicylic acid (SA) or methyl jasmonte (MeJA) on total phenolic content (TPC) and monoterpenes in Mentha x piperita plants were investigated. Although the PGPR inoculation response has been studied for many plant ... Read more >>

Int J Mol Sci (International journal of molecular sciences)
[2019, 21(1):]

Cited: 2 times

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Tree defence and bark beetles in a drying world: carbon partitioning, functioning and modelling.

Jianbei Huang, Markus Kautz, Amy M Trowbridge, Almuth Hammerbacher, Kenneth F Raffa, Henry D Adams, Devin W Goodsman, Chonggang Xu, Arjan J H Meddens, Dineshkumar Kandasamy, Jonathan Gershenzon, Rupert Seidl, Henrik Hartmann,

Drought has promoted large-scale, insect-induced tree mortality in recent years, with severe consequences for ecosystem function, atmospheric processes, sustainable resources and global biogeochemical cycles. However, the physiological linkages among drought, tree defences, and insect outbreaks are still uncertain, hindering our ability to accurately predict tree mortality under on-going climate change. ... Read more >>

New Phytol (The New phytologist)
[2020, 225(1):26-36]

Cited: 2 times

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Phenylacetaldehyde synthase 2 does not contribute to the constitutive formation of 2-phenylethyl-β-D-glucopyranoside in poplar.

Jan Günther, Axel Schmidt, Jonathan Gershenzon, Tobias G Köllner,

In response to herbivory, poplar produces among other compounds the volatile alcohol 2-phenylethanol and its corresponding glucoside 2-phenylethyl-β-D-glucopyranoside. While the free alcohol is released only upon herbivory, the glucoside accumulates also in undamaged leaves, but increases after herbivore feeding. Recently we showed that 2-phenylethanol and its glucoside are biosynthesized via ... Read more >>

Plant Signal Behav (Plant signaling & behavior)
[2019, 14(11):1668233]

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Trait-mediated indirect interactions: Moose browsing increases sawfly fecundity through plant-induced responses.

Michelle Nordkvist, Maartje J Klapwijk, Lars Edenius, Jonathan Gershenzon, Axel Schmidt, Christer Björkman,

Induced responses in plants, initiated by herbivory, create potential for trait-mediated indirect interactions among herbivores. Responses to an initial herbivore may change a number of plant traits that subsequently alter ecological processes with additional herbivores. Although common, indirect interactions between taxonomically distant herbivores, such as mammals and insects, are less ... Read more >>

(Ecology and evolution)
[2019, 9(18):10615-10629]

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Roles of plant volatiles in defence against microbial pathogens and microbial exploitation of volatiles.

Almuth Hammerbacher, Teresa A Coutinho, Jonathan Gershenzon,

Plants emit a large variety of volatile organic compounds during infection by pathogenic microbes, including terpenes, aromatics, nitrogen-containing compounds, and fatty acid derivatives, as well as the volatile plant hormones, methyl jasmonate, and methyl salicylate. Given the general antimicrobial activity of plant volatiles and the timing of emission following infection, ... Read more >>

Plant Cell Environ (Plant, cell & environment)
[2019, 42(10):2827-2843]

Cited: 1 time

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Strigolactones enhance root-knot nematode (Meloidogyne graminicola) infection in rice by antagonizing the jasmonate pathway.

Zobaida Lahari, Chhana Ullah, Tina Kyndt, Jonathan Gershenzon, Godelieve Gheysen,

Strigolactones (SLs) are carotenoid-derived plant hormones that also act in the rhizosphere to stimulate germination of root-parasitic plants and enhance plant symbiosis with beneficial microbes. Here, the role of SLs was investigated in the interaction of rice (Oryza sativa) roots with the root-knot nematode Meloidogyne graminicola. Genetic approaches and chemical ... Read more >>

New Phytol (The New phytologist)
[2019, 224(1):454-465]

Cited: 4 times

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Terpene Synthase Genes Originated from Bacteria through Horizontal Gene Transfer Contribute to Terpenoid Diversity in Fungi.

Qidong Jia, Xinlu Chen, Tobias G Köllner, Jan Rinkel, Jianyu Fu, Jessy Labbé, Wangdan Xiong, Jeroen S Dickschat, Jonathan Gershenzon, Feng Chen,

Fungi are successful eukaryotes of wide distribution. They are known as rich producers of secondary metabolites, especially terpenoids, which are important for fungi-environment interactions. Horizontal gene transfer (HGT) is an important mechanism contributing to genetic innovation of fungi. However, it remains unclear whether HGT has played a role in creating ... Read more >>

Sci Rep (Scientific reports)
[2019, 9(1):9223]

Cited: 4 times

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Sclerotinia sclerotiorum Circumvents Flavonoid Defenses by Catabolizing Flavonol Glycosides and Aglycones.

Jingyuan Chen, Chhana Ullah, Michael Reichelt, Jonathan Gershenzon, Almuth Hammerbacher,

Flavonols are widely distributed plant metabolites that inhibit microbial growth. Yet many pathogens cause disease in flavonol-containing plant tissues. We investigated how Sclerotinia sclerotiorum, a necrotrophic fungal pathogen that causes disease in a range of economically important crop species, is able to successfully infect flavonol-rich tissues of Arabidopsis (Arabidopsis thaliana). ... Read more >>

Plant Physiol. (Plant physiology)
[2019, 180(4):1975-1987]

Cited: 1 time

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Induction of essential oil production in Mentha x piperita by plant growth promoting bacteria was correlated with an increase in jasmonate and salicylate levels and a higher density of glandular trichomes.

Lorena Del Rosario Cappellari, Maricel Valeria Santoro, Axel Schmidt, Jonathan Gershenzon, Erika Banchio,

Plant growth promoting bacteria (PGPB) are agriculturally important soil bacteria that increase plant growth. We subjected peppermint to inoculation with three species of PGPB. After inoculation, the plants were sprayed with methyl jasmonate solution (MeJA) or SA (salicylic acid). Then, the plants were harvested and the plant growth parameters, trichome ... Read more >>

Plant Physiol Biochem (Plant physiology and biochemistry : PPB)
[2019, 141:142-153]

Cited: 3 times

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A terpene synthase-cytochrome P450 cluster in Dictyostelium discoideum produces a novel trisnorsesquiterpene.

Xinlu Chen, Katrin Luck, Patrick Rabe, Christopher Qd Dinh, Gad Shaulsky, David R Nelson, Jonathan Gershenzon, Jeroen S Dickschat, Tobias G Köllner, Feng Chen,

Terpenoids are enormously diverse, but our knowledge of their biosynthesis and functions is limited. Here we report on a terpene synthase (DdTPS8)-cytochrome P450 (CYP521A1) gene cluster that produces a novel C12 trisnorsesquiterpene and affects the development of Dictyostelium discoideum. DdTPS8 catalyzes the formation of a sesquiterpene discoidol, which is undetectable ... Read more >>

Elife (eLife)
[2019, 8:]

Cited: 3 times

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Herbivore-induced volatile emission from old-growth black poplar trees under field conditions.

Andrea Clavijo McCormick, Sandra Irmisch, G Andreas Boeckler, Jonathan Gershenzon, Tobias G Köllner, Sybille B Unsicker,

Herbivory is well known to trigger increased emission of volatile organic compounds (VOCs) from plants, but we know little about the responses of mature trees. We measured the volatiles emitted by leaves of old-growth black poplar (Populus nigra) trees after experimental damage by gypsy moth (Lymantria dispar) caterpillars in a floodplain ... Read more >>

Sci Rep (Scientific reports)
[2019, 9(1):7714]

Cited: 1 time

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