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hugh.harries · hugh.harries@gmail.com | Group Owner  - Edit Membership Start a Group | My Groups
CICLY · Lethal Yellowing Disease of Coconut Palm

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Phytoplasma transovarial transmission   Message List  
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Will the following report from the EPPO Reporting Service stimulate LY
researchers?

2007/030 Possible transovarial transmission of 'Candidatus Phytoplasma
prunorum' by Cacopsylla pruni

The possible transovarial transmission of two phytoplasmas,
'Candidatus Phytoplasma prunorum' (associated with European stone
fruit yellows) and 'Candidatus Phytoplasma mali' (Apple proliferation
- EPPO A2 List) by their respective psyllid vectors Cacopsylla pruni
and C. melanoneura, was investigated in Italy. Results showed that C.
pruni could transmit 'Ca. Phytoplasma prunorum' transovarially, as it
could be detected in the progeny of infected females (i.e. eggs,
nymphs and newly emerged adults). It was also showed that psyllids
which had acquired the phytoplasma transovarially could then transmit
it by feeding on a healthy plum seedling. Transovarial transmission
could not be demonstrated with 'Ca. Phytoplasma mali' in the
experimental design used. Although further studies are needed, these
first results open new perspectives on the study of the epidemiology
of European stone fruit yellows. The fact that the insect is not only
a vector but also a reservoir for the phytoplasma has implications for
disease management.


Source: Tedeschi R, Ferrato V, Rossi J, Alma A (2006) Possible
phytoplasma transovarial transmission in the psyllids Cacopsylla
melanoneura and Cacopsylla pruni. Plant Pathology 55(1), 18-24.
Additional key words: epidemiology Computer codes: PHYPMA, PHYPPR






Wed Mar 21, 2007 5:07 pm

"hugh.harries" <harrieshc@yahoo.com>
hugh.harries
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Will the following report from the EPPO Reporting Service stimulate LY researchers? 2007/030 Possible transovarial transmission of 'Candidatus Phytoplasma ...
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Mar 21, 2007
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