ArticleThe New phytologist2020
New approaches to tannin analysis of leaves can be used to explain in vitro biological activities associated with herbivore defence.
Article in The New phytologist, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.
- Phytochemicals Involved in Plant Resistance to Leporids and Cervids: a Systematic Review.Journal of chemical ecology · 2020Pooled it
- Multiscale structural evolution of proline-rich protein genes shapes primate salivary defenses.Molecular biology and evolution · 2026Article
- Heterogeneity in leaf tannin inducibility across woody and non-woody plants: A meta-analysis.Plant diversity · 2026Article
- Antioxidants: a comprehensive review.Archives of toxicology · 2025Review
- Ultraviolet-A Radiation (UVPlants (Basel, Switzerland) · 2025Article
- Structural basis of EHEP-mediated offense against phlorotannin-induced defense from brown algae to protecteLife · 2023Article
- New Insights into the Latest Advancement in α-Amylase Inhibitors of Plant Origin with Anti-Diabetic Effects.Plants (Basel, Switzerland) · 2023Review
- Article
- Ellagitannin Digestion in Moth Larvae and a New Dimeric Ellagitannin from the Leaves ofMolecules (Basel, Switzerland) · 2021Article
- Spinescence and Total Phenolic Content Do Not Influence Diet Preference of a Critically Endangered Megaherbivore, but the Mix of Compounds Does.Journal of chemical ecology · 2021Article
- Genetic modification of the flavonoid pathway alters growth and reveals flexible responses to enhanced UVB - Role of foliar condensed tannins.Plant-environment interactions (Hoboken, N.J.) · 2021Article
- Nutritional Aspects of Ecologically Relevant Phytochemicals in Ruminant Production.Frontiers in veterinary science · 2021Review
- Proanthocyanidin Biosynthesis-a Matter of Protection.Plant physiology · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although tannins have been an important focus of studies of plant-animal interactions, traditional tannin analyses cannot differentiate between the diversity of structures present in plants. This has limited our understanding of how different mixtures of these widespread secondary metabolites contribute to variation in biological activity. We used UPLC-MS/MS to determine the concentration and broad composition of tannins and polyphenols in 628 eucalypt (Eucalyptus, Corymbia and Angophora) samples, and related these to three in vitro functional measures believed to influence herbivore defence: protein precipitation capacity, oxidative activity at high pH and capacity to reduce in vitro nitrogen (N) digestibility. Protein precipitation capacity was most strongly correlated with concentrations of procyanidin subunits in proanthocyanidins (PAs), and late-eluting ellagitannins. Capacity to reduce in vitro N digestibility was affected most by the subunit composition and mean degree of polymerisation (mDP) of PAs. Finally, concentrations of ellagitannins and prodelphinidin subunits of PAs were the strongest determinants of oxidative activity. The results illustrate why measures of total tannins rarely correlate with animal feeding responses. However, they also confirm that the analytical techniques utilised here could allow researchers to understand how variation in tannins influence the ecology of individuals and populations of herbivores, and, ultimately, other ecosystem processes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.