Leaf size is more sensitive than leaf fluctuating asymmetry as an indicator of plant stress caused by simulated herbivory

Kozlov, Mikhail V.; Zverev, Vitali; Zvereva, Elena L.

doi:10.1016/j.ecolind.2022.108970

Cited by 8 publications

(3 citation statements)

References 37 publications

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“…The statistical power always exceeded 65%, indicating that it was sufficient to detect an effect of site and warming treatment on herbivory and plant defences if that effect did exist (Kozlov et al 2022).…”

Section: Discussionmentioning

confidence: 99%

“…We calculated the post hoc statistical power of our analyses by using the online tool at https://clincalc.com/stats/Power.aspx, using the experimental unit (group of control or heated plants) as the level of replication (consistent with the statistical models above). The statistical power always exceeded 65%, indicating that it was sufficient to detect an effect of site and warming treatment on herbivory and plant defences if that effect did exist (Kozlov et al 2022).…”

Section: Methodsmentioning

confidence: 99%

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Effects of experimental warming at the microhabitat scale on oak leaf traits and insect herbivory across a contrasting environmental gradient

Moreira,

Abdala‐Roberts,

Lago‐Núñez

et al. 2023

Oikos

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Forest microclimatic variation can result in substantial temperature differences at local scales with concomitant impacts on plant defences and herbivory. Such microclimatic effects, however, may differ across abiotically contrasting sites depending on background environmental differences. To test these cross‐scale effects shaping species ecological and evolutionary responses, we experimentally tested the effects of aboveground microhabitat warming on insect leaf herbivory and leaf defences (toughness, phenolic compounds) for saplings of sessile oak Quercus petraea across two abiotically contrasting sites spanning 9° latitude. We found higher levels of herbivory at the low‐latitude site, but leaf traits showed mixed patterns across sites. Toughness and condensed tannins were higher at the high‐latitude site, whereas hydrolysable tannins and hydroxycinnamic acids were higher at the low‐latitude site. At the microhabitat scale, experimental warming increased herbivory, but did not affect any of the measured leaf traits. Condensed tannins were negatively correlated with herbivory, suggesting that they drive variation in leaf damage at both scales. Moreover, the effects of microhabitat warming on herbivory and leaf traits were consistent across sites, i.e. effects at the microhabitat scale play out similarly despite variation in factors acting at broader scales. These findings together suggest that herbivory responds to both microhabitat (warming) and broad‐scale environmental factors, whereas leaf traits appear to respond more to environmental factors operating at broad scales (e.g. macroclimatic factors) than to warming at the microhabitat scale. In turn, leaf secondary chemistry (tannins) appears to drive both broad‐scale and microhabitat‐scale variation in herbivory. Further studies are needed using reciprocal transplants with more populations across a greater number of sites to tease apart plant plasticity from genetic differences contributing to leaf trait and associated herbivory responses across scales and, in doing so, better understand the potential for dynamics such as local adaptation and range expansion or contraction under shifting climatic regimes.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effects of experimental warming at the microhabitat scale on oak leaf traits and insect herbivory across a contrasting environmental gradient

Moreira,

Abdala‐Roberts,

Lago‐Núñez

et al. 2023

Oikos

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“…In our study, mechanical foliar damage to the leaves was used to approximate the attack of herbivores on the plant, as has been done in other studies [32]. However, the response mechanism may be different in the absence of a predator that may interact with the plant through its secretions and microorganisms present in it [33,34]. In another study, the effect of biotic (mycorrhizal inoculation) and environmental (temperatures: 24/14 • C and 28/18 • C [day/night]) factors on the phenolic composition and antioxidant activity of Vitis vinífera L. (Tempranillo grape) leaf extracts was evaluated using grapevines grown in containers in a greenhouse [17].…”

Section: Discussionmentioning

confidence: 99%

Effect of Induced Mechanical Leaf Damage on the Yield and Content of Bioactive Molecules in Leaves and Seeds of Tepary Beans (Phaseolus acutifolius)

Cervantes-Jiménez

Martínez

Mercado-Luna

et al. 2022

Plants

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Growing interest has recently been shown in Tepary beans (Phaseolus acutifolius) because they contain lectins and protease inhibitors that have been shown to have a specific cytotoxic effect on human cancer cells. Bean lectins offer protection against biotic and abiotic stress factors, so it is possible that mechanical foliar damage may increase lectin production. This study evaluates the effect of mechanical stress (foliar damage) on lectin and protease inhibitor content in Tepary beans. Seed yield was also analyzed, and phenolic content and antioxidant capacity (DPPH and TEAC) were determined in the leaves. An experimental design with random blocks of three treatments (T1: control group, T2: 50% mechanical foliar damage and T3: 80% mechanical foliar damage) was carried out. Mechanical foliar damage increased the amount of lectin binding units (LBUs) fivefold (from 1280 to 6542 LBUs in T3) but did not affect units of enzymatic activity (UEA) against trypsin (from 60.8 to 51 UEA in T3). Results show that controlled mechanical foliar damage could be used to induce overexpression of lectins in the seeds of Tepary beans. Mechanical foliar damage reduced seed production (−14.6%: from 1890 g to 1615 g in T3) and did not significantly increase phenolic compound levels in leaves.

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Tree Health of Betula Pubescens L. for Sustainable Urban Ecosystems (in the Railway Impact Zone on Kola Peninsula)

Saltan,

Sviatkovskaya

2023

Springer Geography

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Leaf size is more sensitive than leaf fluctuating asymmetry as an indicator of plant stress caused by simulated herbivory

Cited by 8 publications

References 37 publications

Effects of experimental warming at the microhabitat scale on oak leaf traits and insect herbivory across a contrasting environmental gradient

Effects of experimental warming at the microhabitat scale on oak leaf traits and insect herbivory across a contrasting environmental gradient

Effect of Induced Mechanical Leaf Damage on the Yield and Content of Bioactive Molecules in Leaves and Seeds of Tepary Beans (Phaseolus acutifolius)

Tree Health of Betula Pubescens L. for Sustainable Urban Ecosystems (in the Railway Impact Zone on Kola Peninsula)

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