Relationship Among Phenolic Contents, Seed Predation, and Physical Seed Traits in Mimosa bimucronata Plants

Kestring, Débora; Menezes, Luciana C. C. R.; Tomaz, Camila Aquino; Lima, Giuseppina Pace Pereira; Rossi, Marcelo

doi:10.1007/s12374-009-9073-3

Cited by 19 publications

(17 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The negative impact of phenolic compounds on some phytophagous insects, including some beetles, is well documented (Hartley & Firn, 1989;Serratos et al, 1993;Harborne, 1994;Matsuki & MacLean, 1994;Hartley & Jones, 1997;Kestring et al, 2009). The negative impact of phenolic compounds on some phytophagous insects, including some beetles, is well documented (Hartley & Firn, 1989;Serratos et al, 1993;Harborne, 1994;Matsuki & MacLean, 1994;Hartley & Jones, 1997;Kestring et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore

Coyle

Clark

Raffa

et al. 2010

Entomologia Experimentalis Et Applicata

View full text Add to dashboard Cite

Black vine weevils, Otiorhynchus sulcatus (Fabricius) (Coleoptera: Curculionidae), are globally-distributed polyphagous pests of many horticultural crops. We investigated how adult weevils were affected by host switching and, in particular, how host plant species nutritional and defensive chemistry affected subsequent host plant species selection and oviposition. Adults were fed one of three host plant species, blackcurrant [Ribes nigrum L. (Grossulariaceae)], raspberry [Rubus idaeus L. (Rosaceae)], or strawberry [Fragaria x ananassa Duchesne (Rosaceae)], throughout their pre-reproductive periods and then subjected to behavioral choice assays with these plants. Foliar chemistry differed significantly among the three host plant species. Compared to raspberry and strawberry foliage, blackcurrant foliage was 13% lower in nitrogen, 3% higher in carbon, and 28% higher in phenolic compounds. Initial host plant species had a significant effect on weevil mortality, with more weevils dying when previously fed blackcurrant (12%) than strawberry (3%) or raspberry (0%) regardless of subsequent host. Initial host plant species also affected oviposition, with weevils laying only ca. two eggs per week when previously fed blackcurrant, compared to those on raspberry or strawberry (ca. 11 and 15 eggs per week, respectively). When given a choice, weevils discriminated among host plant species and tended to oviposit on plants on which they had previously fed, even when the plant was nutritionally inferior for egg production and adult survival. In contrast, feeding behavior was only affected by the current host plant species. Feeding and oviposition were related to leaf chemistry only in blackcurrant, as leaf consumption was negatively correlated with foliar carbon and zinc concentrations, and positively correlated with foliar phosphorus and potassium concentrations.

show abstract

Section: Discussionmentioning

confidence: 99%

Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore

Coyle

Clark

Raffa

et al. 2010

Entomologia Experimentalis Et Applicata

View full text Add to dashboard Cite

show abstract

“…This is not surprising, given the different investment of plants into the chemical and mechanical defences of seeds versus mesocarp. Seeds are often protected by high concentrations of secondary compounds (Kestring et al 2009, Rehr et al 1973, Rosenthal et al 1977 and may be attacked by a rather narrow group of specialized predators with detoxifying counter-adaptations whereas such protection is often effective against generalists (Sallabanks & Courtney 1992). Mesocarp is less chemically defended than seeds, in woody plants especially (Ehrlen & Eriksson 1993), where the protective function is compromised to increase palatability to animal seed dispersers at least when fruit is ripe (Westcott & Graham 2000, Willson et al 1989).…”

Section: Host Specificitymentioning

confidence: 99%

Frugivorous weevils are too rare to cause Janzen–Connell effects in New Guinea lowland rain forest

et al. 2014

View full text Add to dashboard Cite

A community of frugivorous weevils was studied by quantitative rearing of 57 weevil species represented by 10 485 individuals from 326 woody plant species in lowland rain forest in Papua New Guinea. Only fruits from 35% of plant species were attacked by weevils. On average, weevils were reared from only 1 in 33 fruits and 1 kg of fruit was attacked by 2.51 individuals. Weevil host specificity was relatively high: 42% of weevil species fed on a single plant genus, 19% on a single plant family and only 16% were reared from more than one family. However, monophagous specialists represented only 23% of all reared individuals. The average 1 kg of fruits was infested by 1.84 individuals of generalist weevils (feeding on allogeneric or allofamilial host species), 0.52 individual of specialists (feeding on a single or several congeneric species), and 0.15 individual of unknown host specificity. Large-seeded fruits with thin mesocarp tended to host specialist species whereas those with thick, fleshy mesocarp were often infested with both specialists and generalists. Weevils tended to avoid small-seeded, fleshy fruits. The low incidence of seed damage (3% of seeds) suggests that weevils are unlikely to play a major role in regulating plant populations via density-dependent mortality processes outlined by the Janzen-Connell hypothesis.

show abstract

“…In the C. retusa populations, the positive correlation between the accumulation of oxidized phenols and the rate of seed predation suggests induced chemical defense [14] which, particularly concentrated in unviable seeds, increase as a response to the increase of the predation rate by U. ornatrix larvae. Predation is a strong selective force; a single developing larva consumes all seeds in the fruit and predation, which is low in drought, increases significantly during the rainy season, reaching up to 80% of all seeds produced in certain populations.…”

Section: Discussionmentioning

confidence: 99%

“…The somatic polymorphism is a phenomenon relatively common in pioneer species of the coastal dunes [5] [13] and it has been interpreted as an adaptation to greater hostility and variability of environmental conditions that characterize the habitat [14] [15]. Since autogamy tends to reduce the genetic polymorphism [16], polymorphic changes between habitats in self-compatible species may not reflect genetic differences between populations, but differences in selfing rates.…”

Section: Introductionmentioning

confidence: 99%

Somatic Polymorphism Variation in <i>Crotalaria retusa</i> L. Seeds

Figueiredo¹,

Silva²

2018

AJPS

View full text Add to dashboard Cite

The article describes the somatic polymorphism in Crotalaria retusa L. seeds.Each individual may produce yellow dormant seeds, brown quiescent seeds and unviable dark brown ones. Therefore, regarding physiology it is a dimorphism. We show that autogamy reduces dimorphism, favoring the formation of dormant seeds. However, the significant variation in dimorphism is seasonal as consequence of increased viability of dormant seeds under drier weather conditions. The variation is a phenotypic response to changes of humidity in the environment during plant reproduction, a mechanism inducing the prevalence of dormant seeds in the dry season and quiescent seeds during the rainy season. The seasonal alternation between dormancy and quiescence in seasonally dry environments has an apparent adaptive value. The chromatic polymorphism increases on the more humid coast and during the rainy season, due to increased mortality of dormant seeds under wetter weather conditions. Unviable seeds accumulate oxidized phenols in their seed coat that possibly act as induced chemical defenses. Its proportion increases with humidity, accentuating polymorphism, also in response to the increase in the predation rate by larvae of U. ornatrix during the rainy season.

show abstract

Relationship Among Phenolic Contents, Seed Predation, and Physical Seed Traits in Mimosa bimucronata Plants

Cited by 19 publications

References 49 publications

Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore

Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore

Frugivorous weevils are too rare to cause Janzen–Connell effects in New Guinea lowland rain forest

Somatic Polymorphism Variation in <i>Crotalaria retusa</i> L. Seeds

Contact Info

Product

Resources

About

Relationship Among Phenolic Contents, Seed Predation, and Physical Seed Traits in Mimosa bimucronata Plants

Cited by 19 publications

References 49 publications

Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore

Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore

Frugivorous weevils are too rare to cause Janzen–Connell effects in New Guinea lowland rain forest

Somatic Polymorphism Variation in &lt;i&gt;Crotalaria retusa&lt;/i&gt; L. Seeds

Contact Info

Product

Resources

About

Somatic Polymorphism Variation in <i>Crotalaria retusa</i> L. Seeds