Effects of leaf herbivory on the bromeliad Aechmea blanchetiana: a study of selective feeding by the scraper Acentroptera pulchella

Magalhães, Noa; Ferreira, Lucas Bevilaqua; Leitão, Gilda Guimarães; Mantovani, André

doi:10.1590/s0102-33062012000400024

Cited by 8 publications

(4 citation statements)

References 39 publications

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“…These traces were attributed to four species of chrysomelids, Chelobasis perplexa Baly, 1858, Xenarescus monocerus Olivier, 1808, Nympharescus separatus Baly, 1858 (all Tribe Arescini) and Cephaloleia consanguinea Baly, 1885 (Tribe Cephaloliini). Magalhães et al (2012) identifi ed traces which are comparable with I. oblonga igen. nov. et isp.…”

Section: A B 231 Robledo Et Al -Phytophagy On Fossil Ferns From Argementioning

confidence: 85%

Phytophagy on fossil ferns from Argentina (Palo Pintado Formation, Late Miocene): a review of their fossil record and ichnotaxonomy

Robledo¹,

Sarzetti²,

Anzótegui³

2015

Rev. bras. paleontol.

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-Evidence of insect-fern interactions are described for the fi rst time from late Miocene strata of Salta Province, Argentina. Two ichnospecies are defi ned to include fossil traces of surface feeding and hole feeding, located between the secondary veins and adjacent with the primary vein of two species of fossil ferns, Blechnum serrulatiformis Anzótegui & Horn and Thelypteris interrupta (Willd.) Iwatsuki. The fi rst ichnospecies corresponding with surface feeding presents oblong traces and both ends are rounded; occupying the entire intercostal space. This type of phytophagy is found for the fi rst time in the fossil record of ferns. The second ichnospecies is similar in shape and location to the previous ichnotaxon, except that all herbivorized tissues are absent. At last, a review of the fossil record of insect-fern associations is performed.Key words: insect-fern interactions, fossil traces, surface feeding, hole feeding.RESUMO -Descreve-se pela primeira vez evidência de interações inseto-samambaia no Mioceno superior da Província de Salta, Argentina. Duas icnoespecies são propostas para incluir rastros fósseis de alimentação superfi cial e alimentação em orifícios, localizadas entre as veias secundárias e adjacentes à veia primária em duas espécies de samambaias fósseis, Blechnum serrulatiformis Anzótegui & Horn e Thelypteris interrupta (Willd.) Iwatsuki. A primeira espécie corresponde à alimentação superfi cial, apresenta rastros oblongos com ambos os extremos arredondados e ocupa todo o espaço intercostal. Este é o primeiro registro de alimentação superfi cial em samambaias fósseis. A segunda espécie similar na sua forma e localização ao icnotáxon previamente descrito, exceto que todas as camadas de tecido herbivorizado estão ausentes. Finalmente, uma revisão do registro fóssil das associações inseto-samambaia também é realizada.Palavras-chave: interação inseto-samambaia, traços fósseis, alimentação superfi cial, alimentação em orifício.

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Section: A B 231 Robledo Et Al -Phytophagy On Fossil Ferns From Argementioning

confidence: 85%

Phytophagy on fossil ferns from Argentina (Palo Pintado Formation, Late Miocene): a review of their fossil record and ichnotaxonomy

Robledo¹,

Sarzetti²,

Anzótegui³

2015

Rev. bras. paleontol.

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“…We found no data on variation in concentrations of defensive compounds (such as phenolics) within a single birch leaf, although in some plant species more phenolics are found in the apical than in the basal parts of leaves (Magalhaes et al, 2012). On the other hand, apical and/or peripheral parts of leaves may contain more nitrogen (Ayabe, 2010;Magalhaes et al, 2012) and/or more airborne metal pollutants (Novikov & Chuikov, 2009) compared to the basal parts of the same leaves. The leaf margins, and especially the leaf apex, may also experience higher temperatures than the central part of the leaf due to differences in transpiration (Aldea et al, 2005).…”

Section: Discussionmentioning

confidence: 82%

Industrial pollution affects behaviour of the leafmining moth Stigmella lapponica

Kozlov

Zvereva

2015

Entomologia Exp Applicata

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We explored the impacts of industrial air pollution on the behaviour of the leafmining moth Stigmella lapponica (Wocke) (Lepidoptera: Nepticulidae) by comparing the characteristics of larval gallery mines in mountain birch [Betula pubescens ssp. czerepanovii (Orlova) H€ amet-Ahti (Betulaceae)] leaves collected from unpolluted forests and from heavily polluted industrial barrens surrounding the copper-nickel smelter in Monchegorsk in north-western Russia. Population density of S. lapponica, survival of larvae, length of the completed mine, and width of its terminal part did not differ between polluted and unpolluted sites. Females in unpolluted sites only rarely (16%) oviposited on the apical half of the leaf and the larval mortality in mines that started in the apical part of the leaf was 83%. A significantly larger (38%) proportion of mines started in the apical half of the leaves in polluted sites, and the larval mortality in these mines was only 45%. The between-habitat difference in the choice of the oviposition sites by S. lapponica is the first demonstration of the adaptive plasticity of oviposition behaviour in a leafmining insect. This difference was not explained by specific leaf weight which did not vary within leaves. Larvae mining in polluted leaves extended 25% farther between turns, and the galleries turned more sharply than in unpolluted leaves. This result confirms the abilities of leafmining larvae to evaluate the quality of the ingested food and adjust their behaviour accordingly. Thus, pollution modifies both the preference of S. lapponica females for oviposition sites within a birch leaf and the behaviour of S. lapponica larvae mining these leaves. This is one of the first records of changes in insect behaviour in natural environment disturbed by industrial pollution.

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“…Additionally, the interior of these structures proved to have a cellulosic and hydrophilic chemical nature (Ruzin, 1999). Lignified sclereids may represent a mechanical defence against herbivory (Magalhães et al, 2012). In fact, signs of herbivory are rarely seen in aerial roots of R. oblongata (A.…”

Section: Discussionmentioning

confidence: 99%

Root morphophysiology changes during the habitat transition from soil to canopy of the aroid vine Rhodospatha oblongata

et al. 2020

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Background and Aims The aroid vine Rhodospatha oblongata is characterized by a habitat change from terrestrial to canopy, relying on aerial roots at maturity to obtain water and nutrients from the forest soil. We hypothesize that morpho-physiological acclimation occurs in roots as they grow under atmospheric conditions. These changes would guarantee the whole plant survival of aroid vines in the new and potentially stressful habitat of the canopy. Methods Terrestrial and aerial roots were compared on a morpho-physiological basis. Root anatomy, water balance, water absorption capacity via fluorescent tracer, and photochemical activity via chlorophyll fluorescence were measured. Key Results While thin fasciculate roots occur on terrestrial crawling individuals, two clearly distinct aerial roots (anchor and feeder) are produced on canopy individuals, which are both adhered to the host trunk. The color of both aerial roots change during development from red and brownish to striped and green at maturity. Color changes are induced by the replacement of epidermis, exodermis, and outer cortex by an inner layer of lignified cork on the root region exposed to the atmosphere. In the root region that is in contact with the host, covering substitutions do not occur and both exodermis and lignified cork, along with several epidermal hairs, appear. Water retention capacity was higher in green roots than in other root types. Rehydration capacity via water absorption by hairs of aerial roots was confirmed by fluorescence. Chlorophyll fluorescence data indicated low levels of photosynthetic capacity in both root types. Conclusions Plants should evolve strategies to survive stress situations. The transition from soil to canopy imposes abiotic changes and potentially stressful situations to R. oblongata. We conclude that the morpho-physiological changes observed represent an important strategy that permits the maintenance of aroid roots and the survival of R. oblongata in the canopy.

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Effects of leaf herbivory on the bromeliad Aechmea blanchetiana: a study of selective feeding by the scraper Acentroptera pulchella

Cited by 8 publications

References 39 publications

Phytophagy on fossil ferns from Argentina (Palo Pintado Formation, Late Miocene): a review of their fossil record and ichnotaxonomy

Phytophagy on fossil ferns from Argentina (Palo Pintado Formation, Late Miocene): a review of their fossil record and ichnotaxonomy

Industrial pollution affects behaviour of the leafmining moth Stigmella lapponica

Root morphophysiology changes during the habitat transition from soil to canopy of the aroid vine Rhodospatha oblongata

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