Search results for: Richard L. Lindroth

Items from 1 to 20 out of 81 results

article

Genetic divergence along a climate gradient shapes chemical plasticity of a foundation tree species to both changing climate and herbivore damage

Michael Eisenring, Rebecca J. Best, Mark R. Zierden, Hillary F. Cooper, more

Global Change Biology > 28 > 15 > 4684 - 4700

Climate change is threatening the persistence of many tree species via independent and interactive effects on abiotic and biotic conditions. In addition, changes in temperature, precipitation, and insect attacks can alter the traits of these trees, disrupting communities and ecosystems. For foundation species such as Populus, phytochemical traits are key mechanisms linking trees with their environment...

article

Coordinated resource allocation to plant growth–defense tradeoffs

Russell K. Monson, Amy M. Trowbridge, Richard L. Lindroth, Manuel T. Lerdau

New Phytologist > 233 > 3 > 1051 - 1066

Plant resource allocation patterns often reveal tradeoffs that favor growth (G) over defense (D), or vice versa. Ecologists most often explain G–D tradeoffs through principles of economic optimality, in which negative trait correlations are attributed to the reconciliation of fitness costs. Recently, researchers in molecular biology have developed ‘big data’ resources including multi‐omic (e.g. transcriptomic,...

article

Trait plasticity and trade‐offs shape intra‐specific variation in competitive response in a foundation tree species

Olivia L. Cope, Richard L. Lindroth, Andrew Helm, Ken Keefover‐Ring, more

New Phytologist > 230 > 2 > 710 - 719

The ability to tolerate neighboring plants (i.e. degree of competitive response) is a key determinant of plant success in high‐competition environments. Plant genotypes adjust their functional trait expression under high levels of competition, which may help explain intra‐specific variation in competitive response. However, the relationships between traits and competitive response are not well...

article

Spatial, genetic and biotic factors shape within‐crown leaf trait variation and herbivore performance in a foundation tree species

Michael Eisenring, Sybille B. Unsicker, Richard L. Lindroth, Kasey Barton

Functional Ecology > 35 > 1 > 54 - 66

Functional trait variation within individual plants is predicted to have important ecological consequences. However, our understanding of the sources contributing to subindividual trait heterogeneity, and the ramifications thereof, is poor. In a common garden, we sampled multiple genotypes of mature trembling aspen Populus tremuloides at different vertical crown levels and quantified the contributions...

article

Divergent host plant utilization by adults and offspring is related to intra‐plant variation in chemical defences

Charles J. Mason, David C. Long, Richard L. Lindroth, Kelli Hoover, more

Journal of Animal Ecology > 88 > 11 > 1789 - 1798

Adult and juvenile herbivores of the same species can use divergent feeding strategies, and thus may inhabit and consume different parts of the plant. Because the expression of chemical defences often differs between host plant tissues, this variation may result in disparate performance outcomes for adult and juvenile conspecifics that feed on distinct dietary substrates. The goal of this study...

article

Chemical defense over decadal scales: Ontogenetic allocation trajectories and consequences for fitness in a foundation tree species

Olivia L. Cope, Eric L. Kruger, Kennedy F. Rubert‐Nason, Richard L. Lindroth, more

Functional Ecology > 33 > 11 > 2105 - 2115

Expression of herbivore defense traits can change dramatically during the course of plant development. Little is known, however, about the degree of genetic or sexual variation in these ontogenetic defense trajectories or whether the trajectories themselves are adaptive, especially in long‐lived species. We used a 13‐year dataset of chemical defense traits, growth and survivorship from a common...

article

Linking plant genes to insect communities: Identifying the genetic bases of plant traits and community composition

Hilary L. Barker, Jennifer F. Riehl, Carolina Bernhardsson, Kennedy F. Rubert‐Nason, more

Molecular Ecology > 28 > 19 > 4404 - 4421

Community genetics aims to understand the effects of intraspecific genetic variation on community composition and diversity, thereby connecting community ecology with evolutionary biology. Thus far, research has shown that plant genetics can underlie variation in the composition of associated communities (e.g., insects, lichen and endophytes), and those communities can therefore be considered as extended...

article

Analysis of condensed tannins in Populus spp. using reversed phase UPLC‐PDA‐(−)esi‐MS following thiolytic depolymerisation

Kennedy F. Rubert‐Nason, Richard L. Lindroth

Phytochemical Analysis > 30 > 3 > 257 - 267

Introduction Condensed tannins (CTs) are proanthocyanidin heteropolymers that are widely distributed among plants. Their biochemical properties are determined by molecular structure (e.g. polymer size, hydroxylation, stereochemistry). In Populus, genetically and environmentally‐determined CT concentrations have been related to ecological effects, while the potential role of CT molecular structure...

article

Independent and interactive effects of plant genotype and environment on plant traits and insect herbivore performance: A meta‐analysis with Salicaceae

Hilary L. Barker, Liza M. Holeski, Richard L. Lindroth, Julia Koricheva

Functional Ecology > 33 > 3 > 422 - 435

Ecological research has increasingly highlighted the importance of intraspecific variation in shaping the structure and function of communities and ecosystems. Indeed, the effects of intraspecific variation can match or exceed those of interspecific variation. Previous reviews of intraspecific variation in plant traits across heterogeneous environments have focused primarily on mean phenotypic...

article

Clonal Saplings of Trembling Aspen Do Not Coordinate Defense Induction

Olivia L. Cope, Richard L. Lindroth

Journal of Chemical Ecology > 2018 > 44 > 11 > 1045-1050

Induction of plant chemical defenses in response to insect feeding may be localized to the site of damage or expressed systemically, mediated by signal transduction throughout the plant. Such systemic induction processes have been widely investigated in plants with single stems, but rarely in clonal plants comprised of multiple ramets with vascular connections. For a clonal tree species such as trembling...

article

Genetic variation in aspen phytochemical patterns structures windows of opportunity for gypsy moth larvae

Michael A. Falk, Richard L. Lindroth, Ken Keefover-Ring, Kenneth F. Raffa

Oecologia > 2018 > 187 > 2 > 471-482

Empirical studies indicate that host-tree bud break will likely advance faster than spring-folivore egg hatch in response to predicted increases in temperature. How these phenological shifts will affect herbivory will depend on temporal patterns of foliar traits that occur during leaf expansion, and their effects on folivore performance. Through fine-scale time series sampling of newly flushed trembling...

article

Vernal freeze damage and genetic variation alter tree growth, chemistry, and insect interactions

Kennedy F. Rubert‐Nason, John J. Couture, Elizabeth A. Gryzmala, Philip A. Townsend, more

Plant, Cell & Environment > 40 > 11 > 2743 - 2753

Anticipated consequences of climate change in temperate regions include early spring warmup punctuated by intermittent hard freezes. Warm weather accelerates leaf flush in perennial woody species, potentially exposing vulnerable young tissues to damaging frosts. We employed a 2 × 6 randomized factorial design to examine how the interplay of vernal (springtime) freeze damage and genetic variation in...

article

Effects of Elevated Atmospheric Carbon Dioxide and Tropospheric Ozone on Phytochemical Composition of Trembling Aspen ( Populus tremuloides ) and Paper Birch ( Betula papyrifera )

John J. Couture, Timothy D. Meehan, Kennedy F. Rubert-Nason, Richard L. Lindroth

Journal of Chemical Ecology > 2017 > 43 > 1 > 26-38

Anthropogenic activities are altering levels of atmospheric carbon dioxide (CO₂) and tropospheric ozone (O₃). These changes can alter phytochemistry, and in turn, influence ecosystem processes. We assessed the individual and combined effects of elevated CO₂ and O₃ on the phytochemical composition of two tree species common to early successional, northern temperate forests. Trembling aspen (Populus tremuloides...

article

Phytochemical traits underlie genotypic variation in susceptibility of quaking aspen (Populus tremuloides) to browsing by a keystone forest ungulate

Liza M. Holeski, Sean C. McKenzie, Eric L. Kruger, John J. Couture, more

Journal of Ecology > 104 > 3 > 850 - 863

Overbrowsing by ungulates is a major cause of poor aspen stand regeneration across North America and Eurasia. In general, factors driving ungulate browser preferences include concentrations of plant secondary compounds and the nutritional composition (non‐structural carbohydrates, protein and minerals) of foliage. While each of these phytochemical factors has been shown to independently influence...

chapter

Herbivory in a World of Elevated CO₂

Richard L. Lindroth, M. Denise Dearing

Ecological Studies > A History of Atmospheric CO2 and Its Effects on Plants, Animals, and Ecosystems > Ecosystem Responses to a Future Atmospheric CO2 > 468-486

article

Effects of winter temperatures, spring degree-day accumulation, and insect population source on phenological synchrony between forest tent caterpillar and host trees

Johnny A. Uelmen, Richard L. Lindroth, Patrick C. Tobin, Peter B. Reich, more

Forest Ecology and Management > 2016 > 362 > C > 241-250

Global climate change has the potential to dramatically alter multiple ecosystem processes, including herbivory. The development rates of both plants and insects are highly sensitive to temperature. Although considerable work has examined the effects of temperature on spring phenologies of plants and insects individually, few studies have examined how anticipated warming will influence their phenological...

chapter

The Impact of Genomics on Advances in Herbivore Defense and Secondary Metabolism in Populus

C. Peter Constabel, Richard L. Lindroth

Plant Genetics and Genomics: Crops and Models > Genetics and Genomics of Populus > Genetics and Genomics of Key Populus Traits > 279-305

The genus Populus is ideally suited for applying the tools of genomics to plant-herbivore interactions and secondary metabolism. Populus is rich in phenolic secondary metabolites including condensed tannins and salicylate-based glycosides; these and related-compounds strongly shape the interactions of Populus with a host of invertebrate and vertebrate herbivores in diverse natural environments and...

article

Interactions between Bacteria And Aspen Defense Chemicals at the Phyllosphere – Herbivore Interface

Charles J. Mason, Tiffany M. Lowe-Power, Kennedy F. Rubert-Nason, Richard L. Lindroth, more

Journal of Chemical Ecology > 2016 > 42 > 3 > 193-201

Plant- and insect-associated microorganisms encounter a diversity of allelochemicals, and require mechanisms for contending with these often deleterious and broadly-acting compounds. Trembling aspen, Populus tremuloides, contains two principal groups of defenses, phenolic glycosides (salicinoids) and condensed tannins, which differentially affect the folivorous gypsy moth, Lymantria dispar, and its...

article

Heterozygosity, gender, and the growth-defense trade-off in quaking aspen

Christopher T. Cole, Michael T. Stevens, Jon E. Anderson, Richard L. Lindroth

Oecologia > 2016 > 181 > 2 > 381-390

Although plant growth is generally recognized to be influenced by allocation to defense, genetic background (e.g., inbreeding), and gender, rarely have those factors been addressed collectively. In quaking aspen (Populus tremuloides Michx.), phenolic glycosides (PGs) and condensed tannins (CTs) constitute up to 30 % of leaf dry weight. To quantify the allocation cost of this chemical defense, we measured...

article

Rapid modulation of ultraviolet shielding in plants is influenced by solar ultraviolet radiation and linked to alterations in flavonoids

Paul W. Barnes, Mark A. Tobler, Ken Keefover‐Ring, Stephan D. Flint, more

Plant, Cell & Environment > 39 > 1 > 222 - 230

The accumulation of ultraviolet (UV)‐absorbing compounds (flavonoids and related phenylpropanoids) and the resultant decrease in epidermal UV transmittance (T_UV) are primary protective mechanisms employed by plants against potentially damaging solar UV radiation and are critical components of the overall acclimation response of plants to changing solar UV environments. Whether plants can adjust this...

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INFONA - science communication portal

Search results for: Richard L. Lindroth

Genetic divergence along a climate gradient shapes chemical plasticity of a foundation tree species to both changing climate and herbivore damage

Coordinated resource allocation to plant growth–defense tradeoffs

Trait plasticity and trade‐offs shape intra‐specific variation in competitive response in a foundation tree species

Spatial, genetic and biotic factors shape within‐crown leaf trait variation and herbivore performance in a foundation tree species

Divergent host plant utilization by adults and offspring is related to intra‐plant variation in chemical defences

Chemical defense over decadal scales: Ontogenetic allocation trajectories and consequences for fitness in a foundation tree species

Linking plant genes to insect communities: Identifying the genetic bases of plant traits and community composition

Analysis of condensed tannins in Populus spp. using reversed phase UPLC‐PDA‐(−)esi‐MS following thiolytic depolymerisation

Independent and interactive effects of plant genotype and environment on plant traits and insect herbivore performance: A meta‐analysis with Salicaceae

Clonal Saplings of Trembling Aspen Do Not Coordinate Defense Induction

Genetic variation in aspen phytochemical patterns structures windows of opportunity for gypsy moth larvae

Vernal freeze damage and genetic variation alter tree growth, chemistry, and insect interactions

Effects of Elevated Atmospheric Carbon Dioxide and Tropospheric Ozone on Phytochemical Composition of Trembling Aspen ( Populus tremuloides ) and Paper Birch ( Betula papyrifera )

Phytochemical traits underlie genotypic variation in susceptibility of quaking aspen (Populus tremuloides) to browsing by a keystone forest ungulate

Herbivory in a World of Elevated CO₂

Effects of winter temperatures, spring degree-day accumulation, and insect population source on phenological synchrony between forest tent caterpillar and host trees

The Impact of Genomics on Advances in Herbivore Defense and Secondary Metabolism in Populus

Interactions between Bacteria And Aspen Defense Chemicals at the Phyllosphere – Herbivore Interface

Heterozygosity, gender, and the growth-defense trade-off in quaking aspen

Rapid modulation of ultraviolet shielding in plants is influenced by solar ultraviolet radiation and linked to alterations in flavonoids

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