Rapid induced resistance and host species effects on gypsy moth, Lymantria dispar (L.): Implications for outbreaks on three tree species in the boreal forest

Roden, David B.; Mattson, William J.

doi:10.1016/j.foreco.2007.12.008

Cited by 14 publications

(7 citation statements)

References 34 publications

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“…However, systemic defense responses are common in trees (Eyles et al 2010) and have also been repeatedly demonstrated for oak in response to feeding by Lymantria spp. (Roden and Mattson 2008;Rossiter et al 1988;Schultz and Baldwin 1982). Faeth (1992) showed that leaf tissue removal increased the level of allelochemicals in the regrowing new foliage.…”

Section: Effects On Gene Expression Patternsmentioning

confidence: 99%

Tree Response to Herbivory Is Affected by Endogenous Rhythmic Growth and Attenuated by Cotreatment With a Mycorrhizal Fungus

Bacht

Tarkka

López

et al. 2019

MPMI

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Herbivores and mycorrhizal fungi interactively influence growth, resource utilization, and plant defense responses. We studied these interactions in a tritrophic system comprising Quercus robur, the herbivore Lymantria dispar, and the ectomycorrhizal fungus Piloderma croceum under controlled laboratory conditions at the levels of gene expression and carbon and nitrogen (C/N) allocation. Taking advantage of the endogenous rhythmic growth displayed by oak, we thereby compared gene transcript abundances and resource shifts during shoot growth with those during the alternating root growth flushes. During root flush, herbivore feeding on oak leaves led to an increased expression of genes related to plant growth and enriched gene ontology terms related to cell wall, DNA replication, and defense. C/N-allocation analyses indicated an increased export of resources from aboveground plant parts to belowground. Accordingly, the expression of genes related to the transport of carbohydrates increased upon herbivore attack in leaves during the root flush stage. Inoculation with an ectomycorrhizal fungus attenuated these effects but, instead, caused an increased expression of genes related to the production of volatile organic compounds. We conclude that oak defense response against herbivory is strong in root flush at the transcriptomic level but this response is strongly inhibited by inoculation with ectomycorrhizal fungi and it is extremely weak at shoot flush.

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Section: Effects On Gene Expression Patternsmentioning

confidence: 99%

Tree Response to Herbivory Is Affected by Endogenous Rhythmic Growth and Attenuated by Cotreatment With a Mycorrhizal Fungus

Bacht

Tarkka

López

et al. 2019

MPMI

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“…Each larva completes its development in about 2 months, depending on food quality. For example, development rate decreases when larvae feed on older leaves, because of low nitrogen content (Schafellner et al 2005;Kula et al 2013), or when they feed on nonpreferential host trees and after severe defoliations (Roden and Mattson 2008).…”

Section: Disparmentioning

confidence: 99%

Cork oak pests: a review of insect damage and management

Tiberi

Branco

Bracalini

et al. 2016

Annals of Forest Science

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Abstract& Key message Cork oak decline is widespread in all its distribution range and seems to be triggered mainly by both mismanagement and unfavorable climatic factors. As a result, cork oak forests become susceptible to pest attack, which accelerates the onset of decline. Pest management strategies for this valuable and highly biodiverse ecosystem are examined in this review, taking into account the main insect pests and how their impact on cork oak forests is affected by climate change. While monitoring pests may provide the tools to predict the transition from endemic to epidemic insect populations, forestry practices (sanitary felling), biological control, and trapping are some of the most promising measures in protecting cork oak forests. & Context Over the last decades, cork oak (Quercus suber L.) decline has affected millions of trees throughout its distribution range. Cork oak is a typically Mediterranean species remarkably relevant for the biodiversity and landscape conservation of vast evergreen oak forests. Cork oak is also well known and highly valued for cork production. Climatic changes, management practices, and biotic factors, particularly plant pathogens and insect pests, play a decisive role in tree death and market devaluation of cork. & Aims Here, we review the major insect pests possibly involved in cork oak decline, while discussing pest management strategies. & Methods A survey of the current literature was performed to identify major insect pests affecting cork oak trees, as well as to establish the most promising pest management strategies under climate change. & Results Many authors seem to agree that the decline is triggered by both anthropogenic and abiotic factors, such as the mismanagement of cork oak forests and unfavorable climate (high temperatures and droughts). Consequently, trees become susceptible to pests and pathogens, which accelerate the onset of decline. & Conclusion Since a further increase in temperatures and droughts is expected, developing adequate management strategies to adapt cork oak trees to climate change, while simultaneously preventing and reducing insect pest attacks, is of foremost importance in the effort to conserve these unique and highly diverse ecosystems.Keywords Quercus suber . Cork oak decline . Climate change . Forest management Handling Editor: Aurelien SALLE Contribution of the co-authors Riziero Tiberi and Tiziana Panzavolta: conceived the idea, supervised literature reviewing, wrote the manuscript, and reviewed its final version. Manuela Branco: contributed to the writing of the manuscript, the reviewing of literature, and the revision of the final draft. Matteo Bracalini: contributed to the writing of the paper, the selection of literature, and the English revision of the manuscript. Francesco Croci: contributed to the writing of the manuscript and the assembling of related literature. All authors have read and approved the final manuscript.

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“…, 2008), Larix decidua (larch) (Krause & Raffa, 1992), Pinus resinosa (red pine) (Krause & Raffa, 1995), Pinus contorta (lodgepole pine) (Trewhella et al. , 1997), Quercus rubra (red oak) (Roden & Mattson, 2008), Populus tremuloides (trembling aspen) (Roden & Mattson, 2008) and Eucalyptus globulus (blue gum) (Rapley et al. , 2008).…”

Section: Systemic Induction Of Resistancementioning

confidence: 99%

Induced resistance to pests and pathogens in trees

et al. 2009

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Contents Summary893I.Introduction894II.Induced defence mechanisms in trees894III.Systemic induction of resistance897IV.Defence signalling networks900V.Future prospects: what does IR offer for management of forest systems?902Acknowledegements904References904 Summary Tree resistance can be enhanced by a variety of biotic and abiotic inducers, including nonpathogenic and pathogenic microbes, and herbivores, resulting in enhanced protection against further biotic injury. Induced resistance (IR) could be a valuable tool in sustainable pest management. IR has been actively studied in herbaceous plant species, and, in recent years, in woody plant species, and is fast emerging as an intriguing, eco‐friendly concept for enhancing tree resistance. However, before application of IR becomes possible, there is a need to increase our knowledge of the mechanisms of defence in forest trees. A richer understanding of these phenomena will play a critical role in developing sustainable integrated pest management strategies. This review summarizes our current knowledge of IR in forest trees, focusing on inducible defence mechanisms, systemic induction of resistance and phytohormone signalling networks. We conclude by discussing the potential advantages and limitations of applying IR‐based management tools in forest systems.

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Rapid induced resistance and host species effects on gypsy moth, Lymantria dispar (L.): Implications for outbreaks on three tree species in the boreal forest

Cited by 14 publications

References 34 publications

Tree Response to Herbivory Is Affected by Endogenous Rhythmic Growth and Attenuated by Cotreatment With a Mycorrhizal Fungus

Tree Response to Herbivory Is Affected by Endogenous Rhythmic Growth and Attenuated by Cotreatment With a Mycorrhizal Fungus

Cork oak pests: a review of insect damage and management

Induced resistance to pests and pathogens in trees

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