Applying the species concept to plant viruses

Applying the target plant concept to nursery stock quality

The basic tenet of the target plant concept is that the quality of nursery stock is determined by outplanting performance (survival and growth), rather than characteristics or standards measured at the nursery. This means that there is no all-purpose plant, but that each outplanting project will require different species and stock types. In this paper, we discuss the six basic questions that he...

Highlight: Applying the Biological Species Concept across All of Life

Louis-Marie Bobay was not intending to redefine how we think of “species,” it all came about rather by chance. “I was mostly focusing on gene flow, how recombination happens across bacterial strains,” says the University of Texas at Austin biologist. In the course of developing methods to quantify gene-flow and recombination across bacterial strains, he saw something. “One day I realized when I...

Plant Resistance Responses to Viruses

Plants have developed numerous approaches to resist infection by viruses. On the other hand, in many instances viruses have evolved to overcome these various resistance responses and barriers. The extent to which viruses can overcome some or all of these responses and barriers determines the extent to which they are able to colonize plants of a given genotype or species. Resistance against plan...

Applying Concept Formation Methods to Software Reuse

This paper describes an approach to software reuse that involves generating and retrieving abstractions from existing software systems using concept formation methods. The potential of the approach is illustrated through two important activities of the reuse process. First, the concept hierarchy generated by the concept formation methods is used for organizing and retrieving the artifacts insid...

Applying Species-Area Relationships to the Conservation of Species Diversity