Advanced search
Search results - 11 item(s) found
Cell Wall-Degrading Enzymes Enlarge the Pore Size of Intervessel Pit Membranes in Healthy and Xylella fastidiosa-Infected Grapevines
The pit membrane (PM) is a primary cell wall barrier that separates adjacent xylem water conduits, limiting the spread of xylem-localized pathogens and air embolisms from one conduit to the next. T...
Grapevine susceptibility to Pierce's disease II: Progression of anatomical symptoms
The progression of anatomical symptoms of Pierce's disease in susceptible Vitis vinifera cv. Chardonnay grapevines was studied over a time course following controlled inoculation of Y-shaped, two-s...
Grapevine susceptibility to Pierce's disease I: Relevance of hydraulic architecture
The arrangement of vascular tissue within the nodes of Chardonnay grapevine (Vitis vinifera) shoots was studied as an investigation of potential pathways of infection for the bacterium Xylella-fast...
Hydraulic disruption and passive migration by a bacterial pathogen in oak tree xylem
Xylella fastidiosa (Xf) is a xylem-limited bacterial pathogen that causes leaf scorch symptoms in numerous plant species in urban, agricultural, and natural ecosystems worldwide. The exact mechanis...
Passive Pathogen Movement via Open Xylem Conduits in Grapevine Graft Unions
In grapevines, scion-rootstock grafting is a common practice to impart pathogen resistance and to manipulate aspects of grapevine physiology, including vigor, yield, and fruit composition. Successf...
The effects of Pierce's disease on leaf and petiole hydraulic conductance in Vitis vinifera cv. Chardonnay
In this study, we test the hypothesis that the symptoms of Pierce's Disease (PD) result from the occlusion of xylem conduits by the bacteria Xylella fastidiosa (Xf ). Four treatments were imposed o...
The role of tyloses in crown hydraulic failure of mature walnut trees afflicted by apoplexy disorder
In the Central Valley of California, mature walnut trees afflicted with apoplexy disorder exhibit rapid and complete crown defoliation within a few weeks of symptom initiation. Symptoms are typical...
Xylella fastidiosa: an examination of a re-emerging plant pathogen
Xylella fastidiosa is a Gram-negative bacterial plant pathogen with an extremely wide host range. This species has recently been resolved into subspecies that correlate with host specificity. This ...
Xylella fastidiosa infection and ethylene exposure result in xylem and water movement disruption in grapevine shoots
It is conventionally thought that multiplication of the xylem-limited bacterium Xylella fastidiosa (Xf) within xylem vessels is the sole factor responsible for the blockage of water movement in gra...
Xylem structure and connectivity in grapevine (Vitis vinifera) shoots provides a passive mechanism for the spread of bacteria in grape plants
Bacterial leaf scorch occurring in a number of economically important plants is caused by the xylem-limited bacterium Xylella fastidiosa (Xf). In grapevine, Xf systemic infection causes Pierce's di...
Xylem structure of four grape varieties and 12 alternative hosts to the xylem-limited bacterium Xylella fastidious
The bacterium Xylella fastidiosa (Xf), responsible for Pierce's disease (PD) of grapevine, colonizes the xylem conduits of vines, ultimately killing the plant. However, Vitis vinifera grapevine var...
