Stage-specific distribution of oxidative radicals and antioxidant enzymes in the midgut of Leptinotarsa decemlineata

Krishnan, Natraj; Kodrı́k, Dalibor; Turanli, Ferit; Sehnal, František

doi:10.1016/j.jinsphys.2006.10.001

Cited by 72 publications

(41 citation statements)

References 27 publications

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“…Both active bees and larvae are feeding stages, which suggests that food affects the activity of antioxidant enzymes. The role of antioxidant enzymes in defense against food allelochemicals was confirmed by numerous authors (Perić-Mataruga et al 1997;Barbehenn et al 2001;Barbehenn 2003;Krishnan and Kodrik 2006;Krishnan et al 2007;Buyukguzel and Kalender 2009;Żaak et al 2012). Krishnan and Kodrik (2006) demonstrated that antioxidant enzymes are upregulated to protect the body against endogenous and exogenous Antioxidant system of Osmia bees oxidative radicals generated by the ingested prooxidant allelochemicals.…”

Section: Discussionmentioning

confidence: 90%

Variations in antioxidant defense during the development of the solitary bee Osmia bicornis

et al. 2014

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-An efficient antioxidant system is of particular importance for insects whose high metabolic rates promote increased formation of reactive oxygen species (ROS). The amount of ROS can be additionally increased by environmental factors. This study investigates the ability of red mason bees (Osmia bicornis L.) to inactivate free radicals during insect development. Both male and female bees were studied, from the larval to the active imago stage. The activity of four antioxidant enzymes, superoxide dismutase, catalase, peroxidase and glutathione Stransferase, was measured; and glutathione content and total antioxidant status were determined. The highest values of the examined parameters were found in feeding stages-in larvae and in active imagines of both genders. Significant differences between genders were noted mainly in catalase activity, which was lower in overwintering imagines and active females than in males. Most differences were observed between females and males after emergence.antioxidants / pollinating insects / insect metabolism / development / enzymes

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Section: Discussionmentioning

confidence: 90%

Variations in antioxidant defense during the development of the solitary bee Osmia bicornis

et al. 2014

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“…Oligogalacturonides released from plant cell wall polysaccharides by aphid salivary enzymes activate the degradation of linolenic acid, which together with systemin, oligogalacturonic acid, and chitosan, trigger the synthesis of hydrogen peroxide (Gatehouse 2002) and other ROS (Orozco-Cardenas and Ryan 1999). Additionally, plants produce pro-oxidant allelochemicals that upon photochemical or biochemical activation may generate ROS (Krishnan et al 2007). ROS react with macromolecules such as deoxyribonucleic acid (DNA), ribonucleic acid (RNA), proteins and lipids causing alterations within their structures.…”

Section: Introductionmentioning

confidence: 99%

Effect of Host Plants on Biochemical Markers of Oxidative Stress within Tissues of Pea Aphid

Łukasik¹,

Goławska²,

Wójcicka³

2012

Journal of Plant Protection Research

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Abstract:The effect of some species of the Fabaceae family (the pea Pisum sativum L., broad bean Vicia faba L. and vetch V. sativa L.) on biochemical markers of oxidative stress within tissues of the pea aphid, Acyrthosiphon pisum Harris (Homoptera, Aphididae), has been studied. The highest concentration of superoxide anion radical (O 2 ─ ), hydrogen peroxide (H 2 O 2 ) and lipid peroxidation products thiobarbituric acid reactive substances (TBARS) was recorded for morphs that fed on the broad bean. The opposite tendency was observed for the level of total thiols, that were the highest for insects reared on the pea. Among the studied aphid morphs, the highest concentration of superoxide anion and hydrogen peroxide was noted for the wingless females whereas TBARS content was the highest within the winged migrant tissues. Different results were obtained for the total thiols, where apterae as well as migrants reared on the tested plants, had comparable content of these compounds. Our experiments indicate that oxidative stress may play an important role in interactions between the pea aphid and their host plants.

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“…In contrast, the content of another non-enzymatic antioxidant, glutathione, and the activity of glutathionerelated enzymes were highest within the tissues of the winged-migrant stage of cereal aphids ( Lukasik 2006). Krishnan et al (2007Krishnan et al ( , 2009) noted a lower level of ROS and a higher antioxidant potential in the adult of Leptinotarsa decemlineata (Say, 1824) than in the larval stage. Thus, ASA and APOX may be a key component of the antioxidant defense of cereal aphids larvae.…”

Section: Resultsmentioning

confidence: 99%

Antioxidant defense mechanisms of cereal aphids based on ascorbate and ascorbate peroxidase

Łukasik¹,

Goławska²,

Wójcicka³

2009

Biologia

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Effects of plant o-dihydroxyphenols on ascorbate (ASA) content and ascorbate peroxidase (APOX) activity in the tissues of the grain aphid Sitobion avenae and the bird cherry-oat aphid Rhopalosiphum padi were studied. Among the aphid morphs, the highest ASA content and APOX activity were noted for larvae and the lowest for wingless apterae. When exposed to o-dihydroxyphenols, aphids of both species contained significantly lower concentrations of ASA and higher APOX activity than the controls. Among the studied compounds, caffeic acid had the strongest effect on ASA-based antioxidant responses in that caffeic acid caused a 5-fold decrease of ASA in aphid tissues. The influences of the plant o-dihydroxyphenols on antioxidant defense mechanisms within the cereal aphid species are discussed.

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Stage-specific distribution of oxidative radicals and antioxidant enzymes in the midgut of Leptinotarsa decemlineata

Cited by 72 publications

References 27 publications

Variations in antioxidant defense during the development of the solitary bee Osmia bicornis

Variations in antioxidant defense during the development of the solitary bee Osmia bicornis

Effect of Host Plants on Biochemical Markers of Oxidative Stress within Tissues of Pea Aphid

Antioxidant defense mechanisms of cereal aphids based on ascorbate and ascorbate peroxidase

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