Unraveling Pierce’s Disease in Its Ancient Environment
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چکیده
For most of Texas, Pierce’s disease (PD) is the greatest limiting factor in cultivating Vitis vinifera and most hybrid wine grapes.Widespread death of wine grapes has been a common occurrence in Texas since the first introduction of old-world varieties brought by European settlers over four hundred years ago. Although the scientific knowledge of Pierce’s disease has grown significantly in recent years, little was known about the variety of vectors or how the bacterial pathogen (Xylella fastidiosa) colonizes the plants and xylem-feeding insects in Texas ecosystems where the disease has long been endemic.
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INSECT-SYMBIOTIC BACTERIA INHIBITORY TO XYLELLA FASTIDIOSA (PARATRANSGENESIS FOR CONTROL OF PIERCE’S DISEASE): IDENTIFICATION OF ENDOPHYTIC BACTERIA CYCLED BY GLASSY-WINGED SHARPSHOOTERS TO HOST PLANTS Project Leader:
INTRODUCTION Homalodisca coagulata Say, the glassy-winged sharpshooter (GWSS) is known to transmit the etiological agent of Pierce’s disease, Xylella fastidiosa. A paratransgenic approach designed to disrupt the ability of the insect vector to transmit the pathogen involves finding bacterial candidates that possess some degree of intimacy either within the insect and/or host plant xylem. Once a...
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