Studies on Natural Virus Infection of.Lactuca sativa in Egypt
SA BAH ABO EL MAA TY AHMED EL SAYED;
Abstract
A virus was found naturally infecting Lactuca sativa in a field near Benha, Kalubia , Egypt. The virus induced severe mosaic mottling, sharp distortion and abnormalities on the leaves.
In a trial to identify the virus physical properties, electron
microscopy and host range were studied.
The histopathological changes of Hibiscus schizopetalus leaves showing necrotic local lesions induced by the virus were also studied.
The results revealed that:
The virus is mechanically transmissible and is also transmitted by
the seed.
The thermal inactivation point is70.C for 10 min. Its dilution end point is 1 :4 x 1o-6 and completely inactivated after 210 days at 20-30•c.
Electron microscopy showed the virus particles with mean length
740 x 13nm.
There are many hosts to this virus some hosts show local lesions as
Acalypha wilkesiana Miill. Arg.,Brassica rapae L. var. rapifera koch
, Chenopodium album L.(white goose foot), Colocacia antiquorum schott,
Corchorus olitorius L, Eruca sativa Miller(Rocket), Gazania .splendens
In a trial to identify the virus physical properties, electron
microscopy and host range were studied.
The histopathological changes of Hibiscus schizopetalus leaves showing necrotic local lesions induced by the virus were also studied.
The results revealed that:
The virus is mechanically transmissible and is also transmitted by
the seed.
The thermal inactivation point is70.C for 10 min. Its dilution end point is 1 :4 x 1o-6 and completely inactivated after 210 days at 20-30•c.
Electron microscopy showed the virus particles with mean length
740 x 13nm.
There are many hosts to this virus some hosts show local lesions as
Acalypha wilkesiana Miill. Arg.,Brassica rapae L. var. rapifera koch
, Chenopodium album L.(white goose foot), Colocacia antiquorum schott,
Corchorus olitorius L, Eruca sativa Miller(Rocket), Gazania .splendens
Other data
| Title | Studies on Natural Virus Infection of.Lactuca sativa in Egypt | Other Titles | دراسة عن عدوى فيروسية طبيعية على نبات الخس فى مصر | Authors | SA BAH ABO EL MAA TY AHMED EL SAYED | Issue Date | 2001 |
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