| seasonal abundance and natural inoculativity of insect vectors of xylella fastidiosa in oklahoma tree nurseries and vineyards. | xylella fastidiosa is the causative agent of diseases of perennial plants including peach, plum, elm, oak, pecan, and grape. this bacterial pathogen is transmitted by xylem-feeding insects. in recent years, pierce's disease of grape has been detected in 10 counties in central and northeastern oklahoma, prompting further investigation of the disease epidemiology in this state. we surveyed vineyards and tree nurseries in oklahoma for potential insect vectors to determine species composition, infec ... | 2015 | 26331482 |
| comparative genomics of the dual-obligate symbionts from the treehopper, entylia carinata (hemiptera: membracidae), provide insight into the origins and evolution of an ancient symbiosis. | insect species in the auchenorrhyncha suborder (hemiptera) maintain ancient obligate symbioses with bacteria that provide essential amino acids (eaas) deficient in their plant-sap diets. molecular studies have revealed that two complementary symbiont lineages, "candidatus sulcia muelleri" and a betaproteobacterium ("ca. zinderia insecticola" in spittlebugs [cercopoidea] and "ca. nasuia deltocephalinicola" in leafhoppers [cicadellidae]) may have persisted in the suborder since its origin ∼300 ma. ... | 2017 | 28854637 |