Effects of sublethal attack by a sucking insect, Hyalymenus tarsatus, on Sesbania drummondii seeds: Impact on some seed traits related to fitness

Ceballos, L.F.; Andary, Claude; Delescluse, M.; Gibernau, Marc; McKey, Doyle; Hossaert‐McKey, Martine

doi:10.1080/11956860.2002.11682687

Cited by 22 publications

(15 citation statements)

References 12 publications

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“…(¼ M. andreana Micheli) reduced both germination and seedling survival (Janzen, 1976). In addition to reducing germination, partial seed damage may also decrease or eliminate seed dormancy (Hallevy, 1974;Karban and Lowenberg, 1992;Koptur, 1998;Ceballos et al, 2002). Such faster germination may minimize larval damage to seed resources prior to seedling emergence (Karban and Lowenberg, 1992).…”

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Simulated seed predation reveals a variety of germination responses of neotropical rain forest species

Vallejo‐Marín

Domínguez

Dirzo

2006

American J of Botany

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Seed predation, an omnipresent phenomenon in tropical rain forests, is an important determinant of plant recruitment and forest regeneration. Although seed predation destroys large amounts of the seed crop of numerous tropical species, in many cases individual seed damage is only partial. The extent to which partial seed predation affects the recruitment of new individuals in the population depends on the type and magnitude of alteration of the germination behavior of the damaged seeds. We analyzed the germination dynamics of 11 tropical woody species subject to increasing levels of simulated seed predation (0-10% seed mass removal). Germination response to seed damage varied considerably among species but could be grouped into four distinct types: (1) complete inability to germinate under damage ≥1%, (2) no effect on germination dynamics, (3) reduced germination with increasing damage, and (4) reduced final germination but faster germination with increasing damage. We conclude that partial seed predation is often nonlethal and argue that different responses to predation may represent different proximal mechanisms for coping with partial damage, with potential to shape, in the long run, morphological and physiological adaptations in tropical, large-seeded species.

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“…Such faster germination may minimize larval damage to seed resources prior to seedling emergence (Karban and Lowenberg, 1992). Finally, partial predation may indirectly result in seed death if, for instance, the attack facilitates the entrance of pathogens (Ceballos et al, 2002).…”

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confidence: 99%

Simulated seed predation reveals a variety of germination responses of neotropical rain forest species

Vallejo‐Marín

Domínguez

Dirzo

2006

American J of Botany

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“…Ding et al (2000) found that infestations of wheat midge larvae, Sitodiplosis mosellana , induced ferulic acid production in wheat seeds, and that high levels of ferulic acid were associated with increased midge mortality. In the short-lived perennial Sesbania drummondii, PSDPdamaged seeds increased both their accumulation and exudation of a range of allelochemicals (Ceballos et al 2002). Karban and Baldwin (1997) provide several arguments for the relative rarity of induced defenses in reproductive structures, including that reproductive structures are so ephemeral that induced defenses are ineffective.…”

Section: Induced Plant Defenses Against Seed Predationmentioning

confidence: 99%

Plant damage from and defenses against ‘cryptic’ herbivory: A guild perspective

Preisser

Bastow

2005

Journal of Plant Interactions

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Despite considerable interest in the factors affecting trophic cascades in terrestrial systems, there has been relatively little attention paid to the importance of the herbivore-plant link in explaining why some systems ''cascade'' (have strong topdown effects on plant survival and population growth) and others ''trickle'' (have top-down effects on plant damage, but little effect on plant fitness). This is despite the fact that herbivore guild identity has long been recognized as a major force affecting herbivore-plant interactions. We address the potential importance of herbivore guild identity in determining the strength of tritrophic interactions by reviewing literature concerning plant damage from and induced defenses against two ''cryptic'' herbivore guilds, predispersal seed predators and root/stem borers. Although both guilds are capable of strongly affecting plant fitness, the impact of root/stem borers on plants in natural systems seems far greater than that of predispersal seed predators. The large impact of root/stem borers occurs via their disruption of plant vascular systems, while a variety of factors (safe-site-limited plant populations, long-lived seed banks, temporal plant escape, etc.) each seem important in explaining the smaller effect of predispersal seed predators. While the lack of attention to herbivore guilds is understandable, given the (by necessity) single-species focus of much trophic cascade research, we suggest that predator suppression of root/ stem borers and predispersal seed predators will, respectively, yield strong versus weak top-down effects on plant fitness. The potential tritrophic consequences of herbivore feeding mode highlight the importance of research on varied predatorherbivore chains that share a common basal resource.

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“…Proanthocyanidins or condensed tannins are bitter tasting compounds that have been proved to prevent the feeding of plant tissues (Marles et al 2003). There is evidence that inducible proanthocyanidin accumulation may present a defence mechanism of some seeds or leaves against insect and mammalian herbivory (Ceballos et al 2002, Dixon et al 2005. However, the importance of proanthocyanidins in protection against herbivory has also been questioned (Briggs 1990).…”

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Effect of wounding on chalcone synthase and pathogenesis related PR-10 gene expression and content of phenolic compounds in bilberry leaves

Jaakola¹,

Koskimäki²,

Riihinen³

et al. 2008

Biol. plant.

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The influence of artificial wounding on biosynthesis of flavonoids and hydroxycinnamic acids was studied in bilberry leaves using two separate wounding experiments. In the first experiment bilberry leaves were wounded by cutting. The expression of the first gene from flavonoid pathway, chalcone synthase (CHS) and a wound induced pathogenesis related PR-10 gene was analysed from samples collected immediately and after 3, 6, 24 h and 4 d from the wounding treatment. In the second experiment annual shoots were removed. Proanthocyanidins, flavonol glycosides and hydroxycinnamic acids were quantified in leaf samples after 0 -5 d (experiment 1) and 5 weeks (experiment 2) from the treatment. In the first experiment, no change was observed in the expression of CHS whereas increase in expression of PR-10 gene was detected after 6 h of wounding treatment. In both experiments, the contents of flavonol glycosides and hydroxycinnamic acids were not influenced by the wounding treatment and the contents of proanthocyanidins were decreased.

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Effects of sublethal attack by a sucking insect, Hyalymenus tarsatus, on Sesbania drummondii seeds: Impact on some seed traits related to fitness

Cited by 22 publications

References 12 publications

Simulated seed predation reveals a variety of germination responses of neotropical rain forest species

Simulated seed predation reveals a variety of germination responses of neotropical rain forest species

Plant damage from and defenses against ‘cryptic’ herbivory: A guild perspective

Effect of wounding on chalcone synthase and pathogenesis related PR-10 gene expression and content of phenolic compounds in bilberry leaves

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