Intraspecific phytochemical diversity increases with productivity but has mixed effects on herbivory DOI
Eduardo Soares Calixto, John L. Maron, Ken Keefover‐Ring

et al.

Oikos, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Resources play an important role in shaping the evolution of plant defensive strategies. How resource availability influences overall phytochemical diversity within species, and how this in‐turn affects herbivore damage is not well understood. Using Monarda fistulosa , a species that produces diverse terpene compounds distinct chemotypes (i.e. thymol or carvacrol), we addressed three questions: 1) do components total concentration, Shannon diversity, chemotypes) vary between populations from two large, widely separated regions differ climate productivity? 2) these influence attack by different species? 3) What are growth costs higher levels chemotypes? Seeds were collected 12 spread across precipitation‐driven productivity, six low‐productivity environment Montana high‐productivity Wisconsin, grown common garden Wisconsin. We analyzed concentrations, quantified number herbivores damage, measured above‐ground biomass. Plants exhibited concentrations but lower whereas those Wisconsin displayed diversity. received more specialist seed predator leaf‐chewing herbivores, although abundance aphid was lower, compared to plants Montana. Total concentration emerged as primary predictor some differences observed region origin with richness. Herbivores mixed responses phytochemistry; negatively affected, while specialized leaf galler responded positively. Costs producing defenses evident negative correlations biomass (but chemical richness diversity). Our study revealed regional productivity can which, turn, incurs growth‐related costs.

Language: Английский

Intraspecific and intra‐individual chemodiversity and phenotypic integration of terpenes across plant parts and development stages in an aromatic plant DOI Creative Commons
Dominik Ziaja, Caroline Müller

Plant Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Some plant species produce an extraordinary diversity of specialized metabolites. The diverse class terpenes is characteristic for many aromatic plants, and can occur as both emitted volatiles stored compounds. Little known about how intraspecific chemodiversity phenotypic integration volatile differ intra‐individually across development between different parts, studies considering spatial temporal scales are scarce. To comprehensively investigate this diversity, we used the Tanacetum vulgare that differs in foliar terpene composition, forming chemotypes. We collected young old leaves during rosette, elongated stem, flowering stage well flower heads at stage. Moreover, stage, were extracted from including roots. Terpene profiles measured with (TD)‐GC‐MS. composition depended on specific combination chemotype, part, time point; was mainly affected by indicating stages individuals require a higher chemodiversity, potentially to mediate interactions. For terpenes, intra‐individual differences, mostly aboveground belowground found only components such richness evenness, but not functional Hill diversity. Phenotypic differed part chemotype terpenes. Our results suggest their highly plastic trait may be shaped dependence interactions environment, value each contributes fitness individual. Such variation scales, spatially temporally, should considered chemical ecological studies.

Language: Английский

Citations

1
Intraspecific phytochemical diversity increases with productivity but has mixed effects on herbivory DOI
Eduardo Soares Calixto, John L. Maron, Ken Keefover‐Ring

et al.

Oikos, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Resources play an important role in shaping the evolution of plant defensive strategies. How resource availability influences overall phytochemical diversity within species, and how this in‐turn affects herbivore damage is not well understood. Using Monarda fistulosa , a species that produces diverse terpene compounds distinct chemotypes (i.e. thymol or carvacrol), we addressed three questions: 1) do components total concentration, Shannon diversity, chemotypes) vary between populations from two large, widely separated regions differ climate productivity? 2) these influence attack by different species? 3) What are growth costs higher levels chemotypes? Seeds were collected 12 spread across precipitation‐driven productivity, six low‐productivity environment Montana high‐productivity Wisconsin, grown common garden Wisconsin. We analyzed concentrations, quantified number herbivores damage, measured above‐ground biomass. Plants exhibited concentrations but lower whereas those Wisconsin displayed diversity. received more specialist seed predator leaf‐chewing herbivores, although abundance aphid was lower, compared to plants Montana. Total concentration emerged as primary predictor some differences observed region origin with richness. Herbivores mixed responses phytochemistry; negatively affected, while specialized leaf galler responded positively. Costs producing defenses evident negative correlations biomass (but chemical richness diversity). Our study revealed regional productivity can which, turn, incurs growth‐related costs.

Language: Английский

Citations

0