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Resistance to M elanaphis sacchari in the sugarcane cultivar R 365
Author(s) -
Fartek B.,
Nibouche S.,
Turpin P.,
Costet L.,
Reynaud B.
Publication year - 2012
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.2012.01286.x
Subject(s) - antibiosis , aphid , biology , phloem , cultivar , horticulture , botany , homoptera , pest analysis , saccharum officinarum , bacteria , genetics
This study focuses on the resistance of sugarcane, S accharum spec. ( P oaceae), to the sugarcane aphid, M elanaphis sacchari ( Z ehntner) ( H emiptera: A phididae), 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, R hopalosiphum maidis ( F itch) ( H emiptera: A phididae), another vector of SCYLV .