ArticleJournal of chemical ecology2003
Herbivore-induced responses in alfalfa (Medicago sativa).
Article in Journal of chemical ecology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 99 citations in OpenAlex.
- Evidence of Rapid Evolution in Herbivory Defense Responses With Conserved Trade-Offs in Populations ofEcology and evolution · 2025Article
- Advances in basic biology of alfalfa (Horticulture research · 2025Article
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- Effects of Defoliation Timing and Intensity on Yield Components and Grain Quality of Quinoa (Plants (Basel, Switzerland) · 2025Article
- Trichoplusia ni Transcriptomic Responses to the Phytosaponin Aglycone Hederagenin: Sex-Related Differences.Journal of chemical ecology · 2024Article
- Effects of leaf herbivory and autumn seasonality on plant secondary metabolites: A meta-analysis.Ecology and evolution · 2024Article
- Impact of caffeic acid on growth, development and biochemical physiology of insect pest,Heliyon · 2023Article
- Rapid evolution ofEcology and evolution · 2019Article
- Allelopathic and Autotoxic Effects ofPlants (Basel, Switzerland) · 2019Article
- Large-Scale Profiling of Saponins in Different Ecotypes ofFrontiers in plant science · 2019Article
- Medicago truncatula Oleanolic-Derived Saponins Are Correlated with Caterpillar Deterrence.Journal of chemical ecology · 2017Article
- High herbivore pressure favors constitutive over induced defense.Ecology and evolution · 2016Article
- Flavones: From Biosynthesis to Health Benefits.Plants (Basel, Switzerland) · 2016Review
- Characterization of triterpenoid profiles and triterpene synthase expression in the leaves of eight Vitis vinifera cultivars grown in the Upper Rhine Valley.Journal of plant research · 2016Article
- Characterisation of two oxidosqualene cyclases responsible for triterpenoid biosynthesis in Ilex asprella.International journal of molecular sciences · 2015Article
- The effect of drought stress on the expression of key genes involved in the biosynthesis of triterpenoid saponins in liquorice (Glycyrrhiza glabra).Phytochemistry · 2014Article
- Distribution and expression characteristics of triterpenoids and OSC genes in white birch (Betula platyphylla suk.).Molecular biology reports · 2012Article
- Within-plant distribution of induced resistance in apple seedlings: rapid acropetal and delayed basipetal responses.Planta · 2011Article
- Soybean metabolites regulated in root hairs in response to the symbiotic bacterium Bradyrhizobium japonicum.Plant physiology · 2010Article
- Phenolic metabolites in leaves of the invasive shrub, Lonicera maackii, and their potential phytotoxic and anti-herbivore effects.Journal of chemical ecology · 2008Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The herbivore-induced response of alfalfa (Medicago sativa) was examined through assays with Spodoptera littoralis larvae and analyses of important secondary substances. In food preference experiments, larvae preferred young undamaged alfalfa plants over plants that had been damaged by feeding larvae 5 and 7 days earlier. while no difference in feeding preferences could be detected 1. 9. and 14 days after damage. This suggests a peak in the herbivore induced resistance of alfalfa approximately one week after initial damage. The induced resistance in young plants was also shown to be systemic, while older flowering plants failed to show increased resistance after defoliation. Larvae gained weight slower and had lower pupal mass when fed damaged alfalfa than when fed undamaged alfalfa. Levels of total saponins were increased in foliage of damaged alfalfa, and detailed analyses of specific saponin components revealed doubled concentrations of 3GlcA,28AraRhaXyl medicagenate (medicagenic acid bidesmoside) and 3GlcAGalRha soyasapogenol B (soyasaponin I). Levels of the flavonoid apigenin (as free aglycone) also were increased in herbivore damaged plants. The herbivore-induced response of alfalfa was significantly weaker than that of cotton: S. littoralis larvae given a choice of undamaged cotton and undamaged alfalfa preferred to feed on cotton, whereas preferences shifted towards alfalfa when plants were damaged.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.