Electrical penetration graphs of the damson-hop aphid, Phorodon humuli on resistant and susceptible hops (Humulus lupulus)

被引：4

作者：

Paul, TA ^{[1
]}

Darby, P ^{[1
]}

Green, CP ^{[1
]}

Hodgson, CJ ^{[1
]}

Rossiter, JT ^{[1
]}

机构：

[1] HORT RES INT,ASHFORD TN25 5AH,KENT,ENGLAND

来源：

ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA | 1996年 / 80卷 / 02期

关键词：

aphid resistance; electrical penetration graph; Phorodon humuli; Humulus lupulus; damson-hop aphid; hop; Homoptera; Aphididae;

D O I：

10.1111/j.1570-7458.1996.tb00946.x

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Electrical penetration graphs (EPG's) were used to locate resistance to Phorodon humuli (Schrank) (Homoptera, Aphididae) in hops (Humulus lupulus, Cannabinaceae). Aphids on those hops showing resistance had a much reduced E2 pattern (uptake of phloem). In addition, many aphids on the resistant plants spent time non-probing within two minutes of withdrawing from the phloem. This was not observed with aphids on susceptible hops. The results suggest that resistance is located in the phloem. The involvement of a mechanical factor such as the blocking of aphid stylets, the presence of antinutritional factors, or simply an inadequate supply of nutrients, are discussed as possible resistance mechanisms.

引用

页码：335 / 342

页数：8

共 23 条

[1]

HOST RANGE, PURIFICATION AND SOME PROPERTIES OF HOP MOSAIC-VIRUS [J].