BACTERIUM SOLANACEARUM IN BEANS

A Nasturtium Wilt Caused by Bacterium Solanacearum

The plants, which were of the dwarf variety and much-branched, were poorly developed, and the leaves mostly wilted, yellowed, or dead (PI. LXIII). The stems had a peculiar translucent or water-soaked appearance, allowing the vascular bundles to show as darkened streaks beneath the unbroken epidermis. When the stem was cut across, there oozed from these bundles a grayish white viscid slime which...

The Bacterial Blight of Beans Caused by Bacterium Phaseolp

Diversity, Pathogenicity, and Current Occurrence of Bacterial Wilt Bacterium Ralstonia solanacearum in Peru

The current bacterial wilt infestation level in the potato fields in the Peruvian Andes was investigated by collecting stem samples from wilted plants and detecting Ralstonia solanacearum. In total 39 farmers' fields located in the central and northern Peru between the altitudes 2111 and 3742 m above sea level were sampled. R. solanacearum was detected in 19 fields, and in 153 out of the 358 sa...

The Complete Genome Sequence of ‘Candidatus Liberibacter solanacearum’, the Bacterium Associated with Potato Zebra Chip Disease

Zebra Chip (ZC) is an emerging plant disease that causes aboveground decline of potato shoots and generally results in unusable tubers. This disease has led to multi-million dollar losses for growers in the central and western United States over the past decade and impacts the livelihood of potato farmers in Mexico and New Zealand. ZC is associated with 'Candidatus Liberibacter solanacearum', a...

Beans functions of graphs with small beans

The beans function BG(x) of a connected graph G is defined as the maximum number of points on G such that any pair of points have distance at least x > 0. We shall exhibit lower and upper bounds of BG(x) for x < 1 and a class of graphs which have the same number of edges and whose beans functions distinguish them. Also, we give some non-isomorphic graphs which have the same beans function.