Data from: Plasticity and epistasis strongly affect bacterial fitness after losing multiple metabolic genesGlen D’Souza, Silvio Waschina, Christoph Kaleta, Christian Kost & Glen D'Souza
Many bacterial lineages lack seemingly essential metabolic genes. Previous work suggested selective benefits could drive the loss of biosynthetic functions from bacterial genomes when the corresponding metabolites are sufficiently available in the environment. However, the factors that govern this ‘genome streamlining’ remain poorly understood. Here we determine the effect of plasticity and epistasis on the fitness of Escherichia coli genotypes from whose genome biosynthetic genes for one, two, or three different amino acids have been...
Data from: Metabolic cross-feeding via intercellular nanotubes among bacteriaSamay R. Pande, Shraddha S. Shitut, Lisa Freund, Martin Westermann, Felix Bertels, Claudia Colesie, Ilka B. Bischofs & Christian Kost
Bacteria frequently exchange metabolites by diffusion through the extracellular environment, yet it remains generally unclear whether bacteria can also use cell–cell connections to directly exchange nutrients. Here we address this question by engineering cross-feeding interactions within and between Acinetobacter baylyi and Escherichia coli, in which two distant bacterial species reciprocally exchange essential amino acids. We establish that in a well-mixed environment E. coli, but likely not A. baylyi, can connect to other bacterial cells via...
Data from: Plant defenses against ants provide a pathway to social parasitism in butterfliesDario Patricelli, Francesca Barbero, Andrea Occhipinti, Cinzia M. Bertea, Simona Bonelli, Luca P. Casacci, Simon A. Zebelo, Christoph Crocoll, Jonathan Gershenzon, Massimo E. Maffei, Jeremy A. Thomas & Emilio Balletto
Understanding the chemical cues and gene expressions that mediate herbivore–host-plant and parasite–host interactions can elucidate the ecological costs and benefits accruing to different partners in tight-knit community modules, and may reveal unexpected complexities. We investigated the exploitation of sequential hosts by the phytophagous–predaceous butterfly Maculinea arion, whose larvae initially feed on Origanum vulgare flowerheads before switching to parasitize Myrmica ant colonies for their main period of growth. Gravid female butterflies were attracted to Origanum plants...
Data from: The sesquiterpenes(E)-ß-farnesene and (E)-α-bergamotene quench ozone but fail to protect the wild tobacco Nicotiana attenuata from ozone, UVB, and drought stressesEvan C. Palmer-Young, Daniel Veit, Jonathan Gershenzon & Meredith C. Schuman
Among the terpenes, isoprene (C5) and monoterpene hydrocarbons (C10) have been shown to ameliorate abiotic stress in a number of plant species via two proposed mechanisms: membrane stabilization and direct antioxidant effects. Sesquiterpene hydrocarbons (C15) not only share the structural properties thought to lend protective qualities to isoprene and monoterpene hydrocarbons, but also react rapidly with ozone, suggesting that sesquiterpenes may similarly enhance tolerance of abiotic stresses. To test whether sesquiterpenes protect plants against ozone,...
Data from:Differential induction of plant chemical defenses by parasitized and unparasitized herbivores: consequences for reciprocal, multitrophic interactionsPaul J. Ode, Jeffrey A. Harvey, Michael Riechelt, Jonathan Gershenzon & Rieta Gols
Insect parasitoids can play ecologically important roles in virtually all terrestrial plant–insect herbivore interactions, yet whether parasitoids alter the defensive traits that underlie interactions between plants and their herbivores remains a largely unexplored question. Here, we examined the reciprocal trophic interactions among populations of the wild cabbage Brassica oleracea that vary greatly in their production of defensive secondary compounds – glucosinolates (GSs), a generalist herbivore, Trichoplusia ni, and its polyembryonic parasitoid Copidosoma floridanum. In a...
Data from: Light and nutrient dependent responses in secondary metabolites of Plantago lanceolata offspring are due to phenotypic plasticity in experimental grasslandsAnnegret Miehe-Steier, Christiane Roscher, Michael Reichelt, Jonathan Gershenzon & Sybille B. Unsicker
A few studies in the past have shown that plant diversity in terms of species richness and functional composition can modify plant defense chemistry. However, it is not yet clear to what extent genetic differentiation of plant chemotypes or phenotypic plasticity in response to diversity-induced variation in growth conditions or a combination of both is responsible for this pattern. We collected seed families of ribwort plantain (Plantago lanceolata) from six-year old experimental grasslands of varying...
Max Planck Institute for Chemical Ecology6
Helmholtz Centre for Environmental Research1
Nederlands Instituut voor Ecologie1
University of Copenhagen1
Jena University Hospital1
Colorado State University1
University of Turin1
Wageningen University & Research1
Max Planck Institute for Biogeochemistry1