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Analysis of Defense-Related Gene Expression in Citrus Hybrids Infected by Xylella fastidiosa
Resistance to Xylella fastidiosa was evaluated in 264 hybrids of crosses between Murcott tangor (Citrus reticulata x Citrus sinensis) and Pera sweet orange (C. sinensis) under field conditions. Uni...
A zinc, copper and citric acid biocomplex shows promise for control of Xylella fastidiosa subsp pauca in olive trees in Apulia region (southern Italy)
The bacterium Xylella fastidiosa subsp. pauca is associated with the “olive quick decline syndrome” in the Apulia region of southern Italy. To investigate control of this phytopathogen, a compound ...
Etiology of three recent diseases of citrus in Sao Paulo State: Sudden death, variegated chlorosis and huanglongbing
The state of Sao Paulo (SSP) is the. rst sweet orange growing region in the world. Yet, the SSP citrus industry has been, and still is, under constant attack from various diseases. In the 1940s, tr...
Graft-transmissible agents in oriental persimmons (Diospyros kaki L) in the southeastern USA
GRAPEVINE NECROTIC UNION, A NEWLY RECOGNIZED DISEASE OF UNKNOWN ETIOLOGY IN GRAPEVINES GRAFTED ON 110 RICHTER ROOTSTOCK IN CALIFORNIA
In Northern California, surveys of several vineyards planted to Vitis vinifera cv. Pinot noir (PN) clones 02A, 667, 777, and UCD 04 grafted onto the rootstock V berlandieri x V rupestris 110 Richte...
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...
Imidacloprid insecticide slows development of phony peach and plum leaf scald
Observations in controlled field experiments over 5 years indicated that imidacloprid, applied as a soil drench around the trunks of peach (Prunus persica), nectarine (P. persica var. nectarine) an...
Inhibition of Xylella fastidiosa polygalacturonase to produce Pierce's disease resistant grapevines
Polygalacturonases (PG) (EC 3.2.1.15), catalyze the random hydrolysis of 1, 4-alpha-D-galactosiduronic linkages in pectate and other galacturonans. Xylella fastidiosa (Xf) possesses a single PG gen...
Leaf scorch in ornamental purple-leaf plum (Prunus cerasifera) in southern California caused by Xylella fastidiosa
Sweetgum dieback and leaf scorch of purple-leafed plum are two new diseases of southern California landscape ornamentals. Samplings were conducted in 2003 and 2004 and 28 of 105 sweetgum (Liquidamb...
Leaf scorch symptoms are not correlated with bacterial populations during Pierce's disease
Xylella fastidiosa (Xf) is a xylem-limited bacterium that lives as a harmless endophyte in most plant species but is pathogenic in several agriculturally important crops such as coffee, citrus, and...
Nutritional deficiency in citrus with symptoms of citrus variegated chlorosis disease
It is well known that citrus plants that have been infected by Xylella fastidiosa display nutritional deficiencies, probably caused by production of extracellular polymers by the bacteria that bloc...
PATHOGENICITY OF XYLELLA-FASTIDIOSA IN AMERICAN ELM AND FAILURE OF RECIPROCAL TRANSMISSION BETWEEN STRAINS FROM ELM AND SYCAMORE
Pathogenicity of Xylella fastidiosa was demonstrated in American elm seedlings. Ten 4-mo-old seedlings were stem-inoculated with a pure culture of X. fastidiosa obtained from a naturally infected e...
