Regina Karin Cruzado Gutierrez

• Ph.D
• University of Idaho

Entomopathogenic nematodes (EPNs) are obligated parasites known to have aggregated movement. However, communication among individuals in the form of trail-following has not been shown by nematodes of any kind. We found that the following behavior is context-dependent; the following behavior among conspecific EPNs was significantly increased when th...

Aggregated movement and population structure are known in entomopathogenic nematodes, which are obligate insect parasites. Aggregation behavior in the absence of external stimuli suggests communication among individuals, often in the form of trail-following, which has not been shown by nematodes of any kind. Interactions among individuals are an es...

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Some vector-borne plant pathogens are known to affect the fitness of their vectors. The potato psyllid Bactericera cockerelli Sulc (Hemiptera: Triozidae) is the vector of the bacterium “Candidatus Liberibacter solanacearum” (Lso), the causal agent of zebra chip (ZC) disease in potato. To date, the four potato psyllid haplotypes, Northwestern, Centr...

Potato virus Y (PVY) and zebra chip (ZC) disease are major threats to solanaceous crop production in North America. PVY can be spread by aphid vectors and through vegetative propagation in potatoes. ZC is associated with “Candidatus Liberibacter solanacearum” (Lso), which is transmitted by the tomato/potato psyllid, Bactericera cockerelli Šulc (Hem...

Changing climate and land‐use practices have the potential to bring previously isolated populations of pest insects into new sympatry. This heightens the need to better understand how differing patterns of host plant association, and unique endosymbionts, serve to promote genetic isolation or integration. We addressed these factors in populations o...

Barley yellow dwarf virus (BYDV) is an important vector-borne pathogen of cereals. Although many species of grasses are known to host BYDV, knowledge of their role in virus spread in regional agroecosystems remains limited. Between 2012 and 2016, Idaho winter wheat production was impacted by BYDV. BYDV-PAV and the bird cherry-oat aphid (BCOA) (Rhop...

Potato psyllid (Bactericera cockerelli Sulc)-transmitted “Candidatus Liberibacter solanacearum” (Lso) has been negatively impacting the potato industry in the United States as well as other potato-producing countries. Lso has been linked to a condition known as zebra chip (ZC) that affects yield and quality of potato tubers. Efforts to find sources...

The potato/tomato psyllid Bactericera cockerelli (Šulc) transmits 'Candidatus Liberibacter solanacearum' (Lso) (also known as 'Candidatus Liberibacter psyllaurous'), the bacterium associated with zebra chip disease (ZC) in potato. When disease incidence is high, ZC causes large economic losses through reductions in potato yield and tuber quality. N...

Zebra chip (ZC) disease has been a threat to the US potato industry for nearly two decades. ZC is associated with the bacteria ‘Candidatus Liberibacter solanacearum’ (Lso), which is transmitted by the potato psyllid, Bactericera cockerelli (Šulc) (Hemiptera: Triozidae). ZC reduces yield and quality, due to discoloration of the tuber tissue. Symptom...

Sweet potato chlorotic stunt virus (SPCSV) is probably the most important virus infecting sweetpotato worldwide, causing severe synergistic disease complexes with several co-infecting viruses. To date only one isolate (Ug), corresponding to the EA strain has been completely sequenced. It was later shown to be unusual in that, in contrast to most is...

GenBank Accession Numbers HQ291259, HQ291260 represent sequences from the 2 segments of Sweet potato chlorotic stunt virus isolate m2-47.

GenBank Accession Numbers HQ291259, HQ291260 represent sequences from the 2 segments of Sweet potato chlorotic stunt virus isolate m2-47.

Sweet potato (Ipomoea batatas) is an important subsistence and famine reserve crop grown in developing countries where Sweet potato chlorotic stunt virus (SPCSV; Closteroviridae), a single-stranded RNA (ssRNA) crinivirus, synergizes unrelated viruses in co-infected sweet potato plants. The most severe disease and yield losses are caused by co-infec...