Oxidative stress, tissue remodeling and regression during amphibian metamorphosis

Menon, Jaishri; Rozman, Roy

doi:10.1016/j.cbpc.2007.02.011

Cited by 51 publications

(56 citation statements)

References 39 publications

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“…Increased mortality among larval L. intacta in the presence of nonconsumptive predators suggests that the systemic effects of stress make larvae more vulnerable to mortality factors, including the interactive effects of reduced energy gains and exposure to pathogens that might otherwise remain sublethal. Increased metamorphic failure in the presence of caged fish also could reflect a stress response above and beyond the normal stresses associated with metamorphosis (Heyland andMoroz 2006, Menon andRoman 2007). We know comparatively little about how stress affects invertebrates (Preisser 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Organisms experience acute stress during certain lifehistory events (e.g., reproduction, migration, metamorphosis), and nonconsumptive effects of predators should (Heyland andMoroz 2006, Menon andRoman 2007), and organisms with complex life cycles have been the subject of a large number of studies on NCEs (Benard 2004). Despite this, most of these studies examine NCEs only within the larval phase, and do not follow organisms through to the adult stage to assess the consequences of prior predator exposure at this key point of life-history transition (but see Relyea 2001, Stoks 2001, Benard and Fordyce 2003, Stamper et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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The deadly effects of “nonlethal” predators

McCauley

Rowe

Fortin

2011

Ecology

154

159

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Abstract. Nonconsumptive predator effects are widespread and include plasticity as well as general stress responses. Caged predators are often used to estimate nonconsumptive effects, and numerous studies have focused on the larval stages of animals with complex life cycles. However, few of these studies test whether nonconsumptive predator effects, including stress responses, are exclusively sublethal. Nor have they assessed whether these effects extend beyond the larval stage, affecting success during stressful life-history transitions such as metamorphosis. We conducted experiments with larvae of a dragonfly (Leucorrhinia intacta) that exhibits predator-induced plasticity to assess whether the mere presence of predators affects larval survivorship, metamorphosis, and adult body size. Larvae exposed to caged predators with no ability to attack them had higher levels of mortality. In the second experiment, larvae reared with caged predators had higher rates of metamorphic failure, but there was no effect on adult body size. Our results suggest that stress responses induced by exposure to predator cues increase the vulnerability of prey to other mortality factors, and that mere exposure to predators can result in significant increases in mortality.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The deadly effects of “nonlethal” predators

McCauley

Rowe

Fortin

2011

Ecology

154

159

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show abstract

“…Indeed, lipid oxidation is one of main quality deterioration reaction and is closely related with development of off-flavors and off odors during the storage of meats. Lipid oxidation is the process whereby free radicals "steal" electrons from the lipids in cell membranes (Menon & Rozman, 2007). Generally, these radicals are very reactive and enter a chain reaction involving lipid and oxygen.…”

Section: Resultsmentioning

confidence: 99%

A preliminary study on the development of an easy method for beef freshness using a cyclic voltammetric system

et al. 2011

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“…Indeed, during climax, strong modifications occurred in the intestines, leading to ROS formation and increased expression of antioxidant defenses such as superoxide dismutases (Menon and Rozman, 2007).…”

Section: Decontamination Phasementioning

confidence: 99%