Resistance to yellow sugarcane aphid: Screening kikuyu and other grasses

Miyasaka, Susan C.; Hansen, James D.; Fukumoto, Glen K.

doi:10.1016/j.cropro.2006.04.022

Cited by 11 publications

(11 citation statements)

References 18 publications

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“…Although potassium did not show a relationship with C. viridis (Fig. 2), it does agree with the work of Miyasaka et al (2007). However, it is known that potassium promotes carbohydrate synthesis and transportation, as in tissue ligniÞcation (Marchner 1995).…”

Section: Discussionsupporting

confidence: 78%

“…However, no paper focuses on the compensatory mechanisms in coffee plants in response to suction insect attacks. Miyasaka et al (2007) observed that plants of kikuyu (Pennisetum clandestinum Hochst. ex Chiov) infested with the bug Sipha flava (Forbes) (Homoptera: Aphididae) that were well fed with nitrogen had an increased total dry matter production.…”

Section: Discussionmentioning

confidence: 97%

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The Effects of Nutrients and Secondary Compounds of Coffea arabica on the Behavior and Development of Coccus viridis

Fernandes¹,

Picanço²,

Queiroz³

et al. 2012

env. entom.

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Phytochemicals may modify the food quality, reduce a plant's palatability to insects, or defend against pests. This work aimed to study 1) relationships between the nitrogen and potassium levels given to plants in nutritive solutions and the foliar phytochemical concentrations, 2) the effect of nutrients and secondary compounds of Coffea arabica on the behavior of Coccus viridis, and 3) tolerance of C. arabica to losses. Deficient, normal, and excessive nitrogen and potassium fertilization treatments were used. Each treatment had two plants (one infested and one noninfested plant). The contents of phytochemicals in the infested plants' leaves and their dry matter of roots, stems, and leaves as well as the total contents in noninfested plants, were determined. The adults and nymphs of C. viridis were counted for 60 d in all treatments. It was verified that elevated nitrogen and potassium levels in the nutritional solutions led to increased of nymphs and adults of C. viridis to the coffee plants over time. Potassium and nitrogen had both direct and indirect effects on C. viridis. The direct effect was because of the increase of the nitrogen content in the leaves. The indirect effect instead was because of reductions in the caffeine and chlorogenic acid contents in the leaves. This is the first study to show relationship nutrient levels of coffee phytochemicals in response to herbivory by scale insects. Caffeine and chlorogenic acid applied on coffee leaves stimulated the locomotory activity of the green scale, thus reducing their feeding compared with untreated leaves. The elevation of caffeine and chlorogenic acid levels in coffee leaves affect this generalist insect by stimulating the locomotion of crawlers.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 97%

The Effects of Nutrients and Secondary Compounds of Coffea arabica on the Behavior and Development of Coccus viridis

Fernandes¹,

Picanço²,

Queiroz³

et al. 2012

env. entom.

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“…They are a pest on many crops, including maize, and a general feeder on grasses and other plants (Metcalf and Metcalf 1993;Steffey et al 1999). They were reared on a pinto-bean based diet at 27 ± 1°C, 40 ± 10% relative humidity, and a 14:10 h light:dark photoperiod (Dowd 1988).…”

Section: Insectsmentioning

confidence: 99%

Differential resistance of switchgrass Panicum virgatum L. lines to fall armyworms Spodoptera frugiperda (J. E. Smith)

Dowd

Johnson

2009

Genet Resour Crop Evol

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Six cultivars of switchgrass Panicum virgatum L., a plant native to North America that has potential as a bioenergy source, were evaluated for resistance to feeding by the fall armyworm Spodoptera frugiperda (J. E. Smith). Although no mortality was noted, seedlings of the cultivar 'Trailblazer' and older plants of the cultivar 'Blackwell' were among the most resistant to feeding by S. frugiperda. Some field-collected samples from natural habitat were fed upon by S. frugiperda as readily as were the cultivars, while others caused high mortality after 2 days. Enzyme assays indicated relative differences in expression of two peroxidases thought to be involved in insect resistance in maize, but not in two chitinolytic enzymes. Genomic searches based on maize-sequence templates for the aforementioned genes identified homologs in switchgrass. Sequencing of cDNA coding for these genes identified some differences, especially in the cationic peroxidase, which could influence relative activity. These results indicate switchgrass germplasm has varying resistance to fall armyworms which could be a function of gene sequence diversity, as well as of variation in gene expression due to differences in ploidy levels or other factors.

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“…Kindler and Dalrymple (1999) noted the development and reproduction of yellow sugarcane aphid, Sipha flava (Forbes), on various warm-and cool-season grasses including switchgrass. However, another study with S. flava, noted that a switchgrass cultivar, ÔAlamoÕ, was one of the most resistant of all grass species tested in Hawaii (Miyasaka et al 2007). In addition, a screen of various grasses showed that switchgrass was a very inefÞcient or nonhost for the English grain aphid, Sitobion avenae (F.) and the apple grain aphid, Rhopalosiphum oxyacanthae (Schrank) (Coon 1959).…”

mentioning

confidence: 97%

Evaluation of Tetraploid Switchgrass (Poales: Poaceae) Populations for Host Suitability and Differential Resistance to Four Cereal Aphids

et al. 2014

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Switchgrass, Panicum virgatum L., is being developed as a bioenergy feedstock. The potential for large-scale production has encouraged its evaluation as a host for important grass pests. Eight no-choice studies were performed for two developmental stages of two switchgrass cultivars ('Kanlow' and'Summer') and two experimental strains, K x S, and S x K produced by reciprocal mating of these cultivars followed by selection for high yield. Plants were evaluated for host suitability and damage differences to herbivory by four important cereal aphids, Sipha flava (Forbes), Schizaphis graminum (Rondani) (biotype I), Rhopalosiphum padi (L.), and Diuraphis noxia (Mordvilko). All switchgrasses were found to be unsuitable feeding and reproductive hosts to R. padi and D. noxia, which were unable to establish on the plants. However, both S. flava and S. graminum were able to establish on all switchgrasses tested. Differential levels of resistance to S. flava and S. graminum were detected among the switchgrasses by both cumulative aphid days (CAD) and plant damage ratings. Kanlow was consistently rated as highly resistant based on CAD and damage ratings for both aphid species, while Summer was consistently among the most susceptible to both aphids at both developmental stages, with relatively high damage ratings. The resistance of the K x S and S x K populations in relationship to their Summer and Kanlow parents indicted that they inherited some resistance to S. graminum and S. flava from their Kanlow parent. These studies provide valuable baseline information concerning the host suitability of switchgrass to four cereal aphids and the plant-insect interactions within a system that has been largely overlooked and indicate that there are genetic differences among switchgrass populations for resistance to some insects.

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Resistance to yellow sugarcane aphid: Screening kikuyu and other grasses

Cited by 11 publications

References 18 publications

The Effects of Nutrients and Secondary Compounds of <I>Coffea arabica</I> on the Behavior and Development of <I>Coccus viridis</I>

The Effects of Nutrients and Secondary Compounds of <I>Coffea arabica</I> on the Behavior and Development of <I>Coccus viridis</I>

Differential resistance of switchgrass Panicum virgatum L. lines to fall armyworms Spodoptera frugiperda (J. E. Smith)

Evaluation of Tetraploid Switchgrass (Poales: Poaceae) Populations for Host Suitability and Differential Resistance to Four Cereal Aphids

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