Agronomy and Crop Science


Publications
763

Analysis of a Prophage Gene Frequency Revealed Population Variation of ‘Candidatus Liberibacter asiaticus’ from Two Citrus-Growing Provinces in China

Citation
Liu et al. (2011). Plant Disease 95 (4)
Names
Ca. Liberibacter asiaticus
Abstract
Prophages are important genetic elements of bacterial genomes and are involved in lateral gene transfer, pathogenicity, environmental adaptations, and interstrain genetic variability. In this study, the sequence of a prophage terminase gene of ‘Candidatus Liberibacter asiaticus’, a bacterium associated with citrus Huanglongbing (HLB), was selected as a molecular marker to assess the genetic variation in two ‘Ca. L. asiaticus’ populations from geographically distinct provinces (Guangdong and Yun

A Sida sp. Is a New Host for “Candidatus Phytoplasma brasiliense” in Brazil

Citation
Eckstein et al. (2011). Plant Disease 95 (3)
Names
Ca. Phytoplasma brasiliense
Abstract
Sida is a genus of flowering herbs in the family Malvaceae, which includes several species that are weeds in Brazil. Plants of a Sida sp. exhibiting symptoms characterized by stunting, chlorosis, small leaves, and witches'-broom, indicative of infection by phytoplasmas, were found in a field previously cultivated with tomato, located in the region of Campinas, State of São Paulo, in December 2008. To demonstrate the presence of phytoplasmas in diseased tissues, DNA was extracted from shoots and