Dagmar Voigt

Dagmar Voigt
Technische Universität Dresden | TUD · Institute for Botany

About

127
Publications
43,569
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,522
Citations

Publications

Publications (127)
Article
Full-text available
Traction forces of male and female southern green stink bugs Nezara viridula (L.) were measured on adaxial leaves of green beans (Phaseolus vulgaris L. cv. ‘Nagauzura’), peas (Pisum sativum L. cv. ‘Hakuryu’), rice (Oryza sativa L. cv. ‘Mac hin sung’), and soybean (Glycine max [L.] Merr. cv. ‘Enrei’), as well as on glass as a control surface. Bugs a...
Article
Full-text available
Omnivorous predatory mirid bugs Dicyphus errans Wolff and closely related species, belonging to the subfamily Bryocorinae (Heteroptera, Miridae), prefer to live on pubescent plant species, where other entomophagous insects are hampered. Previous studies demonstrated a positive relationship between plant trichome diameter and length with attachment...
Article
Full-text available
A recently developed biopesticide made of safflower and cottonseed oils has excellent ovicidal activity against the hard-to-control spider mite Tetranychus urticae Koch (Acari: Tetranychidae). It has attracted attention as a sustainable treatment for controlling T. urticae because it has low potential for promoting resistance and little effect on t...
Article
Full-text available
Buds of horse-chestnut trees are covered with a viscous fluid, which remains sticky after long-term exposure to heat, frost, radiation, precipitation, deposition of aerosols and particles, attacks by microbes and arthropods. The present study demonstrates that the secretion does not dry out under arid conditions, not melt at 50 °C, and not change s...
Article
Green dock beetles Gastrophysa viridula and Colorado potato beetles Leptinotarsa decemlineata having distinctly different body mass and gait habits were compared with respect to their tarsal morphology and attachment ability. The focus laid on shapes and dimensions of tenent setae related to the peeling line, i.e., the sum of widths of all thin-fil...
Article
Stem cell bioengineering and therapy require different model systems and materials in different stages of development. If a chemically defined biomatrix system can fulfill most tasks, it can minimize the discrepancy among various setups. By screening biomaterials synthesized through a coacervation‐mediated self‐assembling mechanism, a biomatrix sys...
Article
Full-text available
Successful host search by parasitic wasps is often mediated by host-associated chemical cues. The ectoparasitoid Holepyris sylvanidis is known to follow chemical trails released by host larvae of the confused flour beetle, Tribolium confusum , for short-range host location. Although the hexane-extractable trails consist of stable, long-chain cuticu...
Article
Full-text available
Conductive hydrogels (CHs) are emerging as a promising and well-utilized platform for 3D cell culture and tissue engineering to incorporate electron signals as biorelevant physical cues. In conventional covalently crosslinked conductive hydrogels, the network dynamics (e.g., stress relaxation, shear shining, and self-healing) required for complex c...
Article
Full-text available
Many features of extracellular matrices, e.g., self-healing, adhesiveness, viscoelasticity, and conductivity, are associated with the intricate networks composed of many different covalent and non-covalent chemical bonds. Whereas a reductionism approach would have the limitation to fully recapitulate various biological properties with simple chemic...
Article
Different membrane characteristics regulate biological pathways in eukaryotic cells. In article number 2005749, Xin Huang, Dietmar Appelhans, and co‐workers demonstrate the function of orthogonal‐responsive membranes of eukaryotic cell biomimetics for the modulation of protein transport.
Article
Full-text available
Comprising ca. 28,000, species the Orchidaceae constitute one of the most species-rich plant families. Orchids differ from other monocotyledons i.a., in the formation of so-called pollinaria, which are entities consisting of pollen grains aggregated into compact pollinia and accessory structures, a viscidium and mostly also a pollinium stalk. The v...
Article
Full-text available
The eukaryotic cell is a smart compartment containing an outer permeable membrane, a cytoskeleton, and functional organelles, presenting part structures for life. The integration of membrane‐containing artificial organelles (=polymersomes) into a large microcompartment is a key step towards the establishment of exquisite cellular biomimetics with d...
Cover Page
Full-text available
Cryo-scanning electron microscopic image of a shock-frozen living egg of the two-spotted spider mite, Tetranychus urticae, on a broad bean leaf, treated with vegetable oil; covered with 6 nm platinum; 545x magnified; coloured using Adobe Photoshop CS5. ©Dagmar Voigt, Institutefor Botany, Technische Universität Dresden, Germany. Read the full article...
Data
Supplement to "Robust, universal, and persistent bud secretion adhesion in horse-chestnut trees" @ Sci Rep (doi:10.1038/s41598-020-74029-5): the video descriptions, NMR spectra, Spectroscopy band assignment, and additional data on pull-off force vs. contact angle, under water adhesion, ESEM time series, substrate characterization, plus raw data...
Data
additional information & summary data (11829_2019_9716_MOESM1_ESM.pdf)
Article
In article number 1900061, Veronika Magdanz and co‐workers present the attachment of differently charged microparticles to sperm cells based on electrostatic interactions as a novel technique to study surface charges. The binding of positively and negatively charged particles to distinct regions of the sperm is promising for the creation of charge...
Article
Full-text available
Synthetic conductive biopolymers have gained increasing interest in tissue engineering, as they can provide a chemically defined electroconductive and biomimetic microenvironment for cells. In addition to low cytotoxicity and high biocompatibility, injectability and adhesiveness are important for many biomedical applications but have proven to be v...
Article
In this article, a procedure to investigate sperm charge distribution by electrostatic sperm–particle interactions is demonstrated. Differently chargedparticles are fabricated and their attachment distribution on the bovine sperm membrane is investigated. The sperm‐particle attachment sites are observed using bright field and cryo‐scanning electron...
Article
Full-text available
Attachment to surfaces is a major aspect of an animal's interaction with the environment. Consequently, mainly natural selection is considered to have shaped the attachment system in relation to weight load and substrate. However, sexual selection may also be important because many animals attach to the partner during mating. Both hypotheses genera...
Preprint
Full-text available
In this article, we demonstrate a procedure to investigate sperm charge distribution by electrostatic sperm-particle interactions. We fabricated and investigated differently charged particles and their attachment distribution on the bovine sperm membrane. We observed the sperm-particle attachment sites using bright field and cryo-scanning electron...
Article
Full-text available
Whiteflies attach their eggs to plants by implanting the egg pedicel into the epidermis of the underside of leaves. This pedicel works like a wall plug embedded in sealing cement, presenting a smart interconnection, which was exemplarily studied in Trialeurodes vaporariorum eggs on two stages of abaxial leaflets of four cut rose cultivars using a c...
Article
Full-text available
ENJOY READING our Arthropod-Plant Interactions 10-year Jubilee Special Issue at https://link.springer.com/journal/11829/13/2! - FREE ACCESS available until 15 June 2019
Article
ENTOMOLOGISCHE NACHRICHTEN UND BERICHTE 62 (3): 173-177. In the summer seasons 2017 and 2018 populations of the giant mealybug, Puto superbus Leonardi, 1907, were recorded at three anthropogenically influenced localities in Saxony, Germany (Pausa/Vogtland, Stadt Wehlen/Sächsische Schweiz, Gelenau/Erzgebirge). From May until September, juveniles an...
Article
The influence of substrate stiffness on the attachment ability of insects has been largely neglected so far. In the present study, traction experiments with adult beetles Gastrophysa viridula and Leptinotarsa decemlineata were carried out to study the influence of smooth, non‐structured surfaces, having different stiffness, on beetle attachment. Fo...
Article
Full-text available
Calcium is an important second messenger in plants that is released into the cytosol early after recognition of various environmental stimuli. Decoding of such calcium signals by calcium sensors is the key for the plant to react appropriately to each stimulus. Several members of Calmodulin-like proteins (CMLs) act as calcium sensors and some are kn...
Data
Verification of cml9-a and cml9-b. Semi quantitative RT-PCR analysis of CML9 full transcript expression in wild type and knock-out mutants after 30 min of MecWorm treatment. Expression of ACTIN2 was used as quantitative control. Water was used as negative control. The expected product length is written on the right sites of the respective pictures....
Data
Primers used for different PCRs. (DOCX)
Article
Full-text available
Similar to other leaf beetles, rosemary beetles Chrysolina americana exhibit a distinct sexual dimorphism in tarsal attachment setae. Setal discoid terminals occur only in males, and they have been previously associated with a long-term attachment to the female's back (elytra) during copulation and mate guarding. For the first time, we studied livi...
Article
Full-text available
Background: Plant-dwelling beetles overcome challenging attachment hurdles by means of ellaborated, tarsal attachment devices, which are frequently equipped with hairy adhesive pads. While the tarsal functional morphology has been intensively studied in leaf and ladybird beetles during the last decades, longhorn beetles (Cerambycidae) have been wid...
Poster
During land plant evolution, cold hardiness developed in various groups to allow survival of above ground plant parts under freezing conditions. Freezing avoidance by extracellular ice formation represents one essential component of cold hardiness, and was considered so far mainly in seed plants. Here we studied extracellular freezing in Equisetum...
Article
Formation of extracellular ice at specific positions in the plant interior is a common and probably essential component of plant cold hardiness. Studies on extracellular freezing in spore-bearing plants are, however, scarce. In this study, extracellular ice formation in the cold hardy horsetail Equisetum hyemale L. is analyzed. Horsetails show an e...
Article
Full-text available
The presence of well-developed, elastic claws on ticks and widely pilose hosts led us to hypothesise that ticks are mostly adapted to attachment and locomotion on rough, strongly corrugated and hairy, felt-like substrates. However, by using a combination of morphological and experimental approaches, we visualised the ultrastructure of attachment de...
Article
Full-text available
Flower surfaces play a key role in the interaction with pollinators acting as signals and landing sites to attach to. To test attachment, Carniolan honeybees and greenbottle flies were used. Both species represent pollinators equipped with smooth or hairy tarsal attachment devices, respectively. A combination of microscopic methods and traction for...
Article
Insects live in a three-dimensional space, and need to be able to attach to different types of surfaces in a variety of environmental and behavioral contexts. Adult leaf beetles possess great attachment ability due to their hairy attachment pads. In contrast, their larvae depend on smooth pads to attach to the same host plant. We tested friction fo...
Article
Full-text available
Main conclusion: A mixture of resins based on aliphatic esters and carboxylic acids occurs in distantly related genera Peperomia and Roridula , serving different functions as adhesion in seed dispersal and prey capture. According to mechanical characteristics, adhesive secretions on both leaves of the carnivorous flypaper Roridula gorgonias and ep...
Article
Full-text available
The cosmopolitan and polyphagous two-spotted spider mite Tetranychus urticae (Acari, Tetranychidae) exhibits a remarkable host plant range. A cryo-scanning electron microscopic study of T. urticae in contact with selected hosts was conducted, demonstrating the universal attachment of pretarsi to a variety of plant surface types, including crystalli...
Article
Full-text available
Glandular trichomes of the carnivorous plant Roridula gorgonias release a viscous resinous secretion. Its adhesion to hydrophilic and hydrophobic glass surfaces was measured in air and underwater. The underwater adhesion reached up to 91% (on hydrophilic glass) and 28% (on hydrophobic glass) of that measured in the air. After being submersed for 24...