Relation of Corn Leaf Aphid (Homoptera: Aphididae) Colonization to DIMBOA Content in Maize Inbred Lines

Bing, J. W.; Guthrie, W. D.; Dicke, F. F.; Obryckp, J. J.

doi:10.1093/jee/83.4.1626

Cited by 19 publications

(23 citation statements)

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“…However, Bing et al (1990) did not Þnd an effect of DIMBOA on R. maidis. The concentration of DIMBOA in corn leaves is high a few days after germination, but decreases rapidly and is low 20 d after germination, when corn is at the fourth leaf stage (Morse et al 1991;Cambier et al 2000).…”

Section: Discussionmentioning

confidence: 70%

Effect of High Temperature on the Growth and Reproduction of Corn Aphids (Homoptera: Aphididae) and Implications for Their Population Dynamics on the Northeastern Iberian Peninsula

Asín

Pons²

2001

Environ Entomol

116

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Section: Discussionmentioning

confidence: 70%

Effect of High Temperature on the Growth and Reproduction of Corn Aphids (Homoptera: Aphididae) and Implications for Their Population Dynamics on the Northeastern Iberian Peninsula

Asín

Pons²

2001

Environ Entomol

116

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“…Thackray et al (1990) found a significant correlation between hydroxamic acid levels and resistance to Rhopalosiphum padi and Sitobion avenae. However, there appears to be no correlation between hydroxamic acid levels in different maize inbred lines and resistance to R. maidis (Bing et al, 1990). Givovich & Niemeyer (1994) also confirmed that R. maidis is unaffected by hydroxamic acids in maize seedlings.…”

Section: Discussionmentioning

confidence: 82%

Herbivore‐induced emissions of maize volatiles repel the corn leaf aphid, Rhopalosiphum maidis

Bernasconi

Turlings

Ambrosetti

et al. 1998

Entomologia Exp Applicata

227

155

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When maize plants, Zea mays L., are mechanically damaged and the damaged sites are treated with caterpillar regurgitant, the plants will release a specific blend of volatiles. It is known that these volatiles can be attractive to natural enemies of herbivores. We hypothesise that the plant volatiles constitute part of the induced plant defence and that herbivores will be affected by the odours as well. In laboratory and semi-field studies this hypothesis was tested for the aphid Rhopalosiphum maidis (Fitch) (Rhynchota, Sternorrhyncha, Aphididae).In a Y-tube olfactometer significantly more aphids chose the odour of healthy, undamaged maize seedlings when tested against clean air or plants treated with regurgitant. Clean air was chosen more often when tested next to the odour of treated plants. This apparently repellent effect of the odour of treated plants was significant for winged aphids, but not for the wingless aphids.In field experiments aphids were released in the centre of circles of eight potted maize plants. Four plants in each circle were damaged and treated with caterpillar regurgitant while the other plants were left unharmed. At different intervals after aphid release, the number of aphids was counted on each plant. Significantly fewer winged and wingless aphids were found back on treated plants than on healthy plants.We suggest that herbivores may be repelled by the odours because they could indicate that: 1) the plant has initiated the production of toxic compounds; 2) potential competitors are present on the plant; 3) the plant is attractive to parasitoids and predators. Aphids may be particularly sensitive to induced maize volatiles because one of the major compounds emitted by the plant is (E)-β-farnesene, which is a common alarm pheromone for aphids. Collections and analyses of the odours emitted by crushed R. maidis confirmed that it too emits (E)-β-farnesene when stressed. The results are discussed in context of plant defence strategies and their possible exploitation for the control of pest insects.

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“…Moreover, Rhopalosiphum padi displayed higher weight gain and survival when feeding on mutant maize plants with reduced BXD levels compared to wild-type plants (Ahmad et al 2011). Notably, however, BXD levels in maize were not correlated with resistance towards R. maidis (Bing et al 1990). …”

Section: Biological Effects Of Bxdsmentioning

confidence: 99%

Plant defense and herbivore counter-defense: benzoxazinoids and insect herbivores

et al. 2016

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Benzoxazinoids are a class of indole-derived plant chemical defenses comprising compounds with a 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one skeleton and their derivatives. These phytochemicals are widespread in grasses, including important cereal crops such as maize, wheat and rye, as well as a few dicot species, and display a wide range of antifeedant, insecticidal, antimicrobial, and allelopathic activities. Although their overall effects against insect herbivores are frequently reported, much less is known about how their modes of action specifically influence insect physiology. The present review summarizes the biological activities of benzoxazinoids on chewing, piercing-sucking, and root insect herbivores. We show how within-plant distribution modulates the exposure of different herbivore feeding guilds to these defenses, and how benzoxazinoids may act as toxins, feeding deterrents and digestibility-reducing compounds under different conditions. In addition, recent results on the metabolism of benzoxazinoids by insects and their consequences for plant-herbivore interactions are addressed, as well as directions for future research.

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Relation of Corn Leaf Aphid (Homoptera: Aphididae) Colonization to DIMBOA Content in Maize Inbred Lines

Cited by 19 publications

References 0 publications

Effect of High Temperature on the Growth and Reproduction of Corn Aphids (Homoptera: Aphididae) and Implications for Their Population Dynamics on the Northeastern Iberian Peninsula

Effect of High Temperature on the Growth and Reproduction of Corn Aphids (Homoptera: Aphididae) and Implications for Their Population Dynamics on the Northeastern Iberian Peninsula

Herbivore‐induced emissions of maize volatiles repel the corn leaf aphid, Rhopalosiphum maidis

Plant defense and herbivore counter-defense: benzoxazinoids and insect herbivores

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