Weeds may contribute to the spread of plant virus epidemics by acting as reservoirs viruses or/and their vectors. The aim this research was study prevalence five viral pathogens in weeds fields solanaceous crops six provinces Poland differing with soil and climate conditions. Most sampled sites were associated tobacco production. total number 157 samples 600 subjected DAS-ELISA detection tomato...

Tobacco rattle virus (TRV), member of the genus Tobravirus, is an important plant pathogen with a wide host range beyond any known viruses. It able to be transmitted by nematodes genera Trichodorus and Paratrichodorus (Trichodoridae). In this paper, rapid screening method was established for inspection TRV in seeds or other materials, combining microfluidic chip tech...

Among 67 or so viruses that are able to infect soybean, 27 are considered a threat to the soybean industry (Tolin and Lacy, 2004; Saghai Maroof et al., 2008). Soybean mosaic virus (SMV) is the most prevalent virus and is recognized as the most serious, long-standing problem in many soybean producing areas in the world (Wang, 2009). SMV is a member of the genus Potyvirus in the family Potyvirida...

Introduction. The Gladiolus genus belongs to the Iridaceae Juss family. It includes more then 150 species. Most of them are native to Africa and few originated from the Mediterranean area, Asia and South Europe. Cultivars of gladiolus exhibit a great diversity of colour, size, shape, flowering time, and bulbing and dormancy behaviour [2]. Gladiolus is an important ornamental plant grown for com...

The BLAS, Basic Linear Algebra Subprograms, has existed in various forms for over two decades. It has long been heavily used in numerical linear algebra and now is finding application in symbolic linear algebraic computation. Recently, the BLAS Technical Forum [1] standardized the bindings (interface) for Fortran 77, Fortran 95, and C calls to BLAS routines. C bindings are still in development....

Since Caspar and Klug [1] introduced simple rules predicting a sequence of viral capsids, several models of growth dynamics of these structures have been proposed, for example by Zlotnick [2]. It is amazing that these structures, known to mathematicians since Coxeter’s [3] classification, are also observed in the so-called fullerenes, huge molecules composed exclusively of carbon atoms, predict...

Virus-like symptoms were recently observed on leaves of landscape and nursery downy and star jasmine (Jasminum multijlorum) and wax jasmine (J. gracile) in southeast Florida. Foliar symptoms included mottling, chlorotic ring spots and chlorotic line patterns. An agent was mechanically transmitted with difficulty from symptomatic leaves of downy jasmine to Nicotiana debneyi and N. tabacum 'Xanth...