Rashed, A.


Publications
5

Effects of Potato-Psyllid-Vectored ‘Candidatus Liberibacter solanacearum’ Infection on Potato Leaf and Stem Physiology

Citation
Wallis et al. (2015). Phytopathology® 105 (2)
Names
“Liberibacter solanacearum”
Abstract
The bacterium ‘Candidatus Liberibacter solanacearum’ is associated with zebra chip disease (ZC), a threat to potato production in North America and New Zealand. It is vectored by potato psyllids. Previous studies observed that ‘Ca. L. solanacearum’ infection causes potato tubers to undergo ZC-symptom-associated shifts in physiology, such as increased levels of amino acids, sugars, and phenolics. However, little is known about how ‘Ca. L. solanacearum’ infections caused by psyllid vector feeding

Similarities and Differences in Physiological Responses to ‘Candidatus Liberibacter solanacearum’ Infection Among Different Potato Cultivars

Citation
Wallis et al. (2014). Phytopathology® 104 (2)
Names
“Liberibacter solanacearum”
Abstract
Zebra chip disease (ZC), putatively caused by the fastidious bacterium ‘Candidatus Liberibacter solanacearum’, is a threat to potato growers worldwide. However, little is known about biochemical shifts in different potato genotypes in response to ‘Ca. L. solanacearum’ infection. To address this, ‘Red La Soda’, ‘Russet Norkotah’, and ‘FL 1867’ potato were infected with ‘Ca. L. solanacearum’ 4, 3, 2, and 1 weeks before harvest to observe variability in cultivar responses to ‘Ca. L. solanacearum’

Zebra Chip Disease and Potato Biochemistry: Tuber Physiological Changes in Response to ‘Candidatus Liberibacter solanacearum’ Infection Over Time

Citation
Rashed et al. (2013). Phytopathology® 103 (5)
Names
“Liberibacter solanacearum”
Abstract
Zebra chip disease, putatively caused by the bacterium ‘Candidatus Liberibacter solanacearum’, is of increasing concern to potato production in Mexico, the United States, and New Zealand. However, little is known about the etiology of this disease and changes that occur within host tubers that result in its symptoms. Previous studies found that increased levels of phenolics, amino acids, defense proteins, and carbohydrates in ‘Ca. L. solanacearum’-infected tubers are associated with symptoms of

Transmission Efficiency of ‘Candidatus Liberibacter solanacearum’ and Potato Zebra Chip Disease Progress in Relation to Pathogen Titer, Vector Numbers, and Feeding Sites

Citation
Rashed et al. (2012). Phytopathology® 102 (11)
Names
“Liberibacter solanacearum”
Abstract
With diseases caused by vector-borne plant pathogens, acquisition and inoculation are two primary stages of the transmission, which can determine vector efficiency in spreading the pathogen. The present study was initiated to quantify acquisition and inoculation successes of ‘Candidatus Liberibacter solanacearum’, the etiological agent of zebra chip disease of potato, by its psyllid vector, Bactericera cockerelli (Hemiptera: Triozidae). Acquisition success was evaluated in relation to feeding s