Resistance to Melanaphis sacchari in the sugarcane cultivar R 365

This study focuses on the resistance of sugarcane, Saccharum spec. (Poaceae), to the sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), which vectors Sugarcane yellow leaf virus (SCYLV). Resistance was characterized in cultivar R 365, using a 3‐year field trial and laboratory ex...

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Bibliographic Details
Published in:Entomologia experimentalis et applicata 2012-09, Vol.144 (3), p.270-278
Main Authors: Fartek, B., Nibouche, S., Turpin, P., Costet, L., Reynaud, B.
Format: Article
Language:English
Subjects:
Antibiosis
antixenosis
Aphididae
aphids
Disease resistance
EPG
Hemiptera
Leaves
Melanaphis sacchari
Phloem
Plantlets
Poaceae
Rhopalosiphum maidis
Saccharum
Sugarcane
Sugarcane yellow leaf virus
yellow leaf
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Summary:This study focuses on the resistance of sugarcane, Saccharum spec. (Poaceae), to the sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), which vectors Sugarcane yellow leaf virus (SCYLV). Resistance was characterized in cultivar R 365, using a 3‐year field trial and laboratory experiments on potted plantlets and excised leaves. R 365 reduced aphid populations in the field by antixenosis and antibiosis. Using the electrical penetration graph technique, we detected delayed aphid salivation in phloem and inhibition of passive phloem sap uptake in R 365. The resistance factors also proved to be effective against the corn leaf aphid, Rhopalosiphum maidis (Fitch) (Hemiptera: Aphididae), another vector of SCYLV.
ISSN:0013-8703
1570-7458
DOI:10.1111/j.1570-7458.2012.01286.x