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Geminiviruses are small plant viruses that encapsidate a single-stranded circular DNA and form double-stranded DNAs in infected plants. Infection of economically important hosts with cloned DNAs of geminiviruses frequently has been difficult. Four isolates of bipartite bean-infecting geminiviruse...


Gilbertson, R.L.Faria, J.C. deHanson, SFMorales, Francisco JoséAhlquist, P.G.Maxwell, D.P.Russell, DR[Cloning of the complete DNA genomes of four bean-infecting geminiviruses and determining their infectivity by electric discharge particle acceleration]Cloning of the complete DNA genomes of four bean-infecting geminiviruses and determining their infectivity by electric discharge particle acceleration

The number and weight of seeds produced per plant were significantly (P = 0.01) reduced, 47.5 and 56.3%, respectively, in Diacol-Calima bean (Phaseolus vulgaris) plants infected with bean southern mosaic virus (BSMV). The number of pods per plant, on the contrary, was often higher in systemically...


Morales, Francisco JoséCastaño, M.[Effect of a Colombian isolate of bean southern mosaic virus on selected yield components of Phaseolus vulgaris]Effect of a Colombian isolate of bean southern mosaic virus on selected yield components of Phaseolus vulgaris

Emerging infectious diseases (EIDs) pose threats to conservation and public health. Here, we apply the definition of EIDs used in the medical and veterinary fields to botany and highlight a series of emerging plant diseases. We include EIDs of cultivated and wild plants, some of which are of sign...


Anderson, Pamela K.Cunningham, A.A.Patel, NGMorales, Francisco JoséEpstein, PRDeszak, P[Emerging infectious diseases of plants : Pathogen pollution, climate change and agrotechnology drivers]Emerging infectious diseases of plants : Pathogen pollution, climate change and agrotechnology drivers

The inheritance of the ability of Sogatodes oryzicola to support replication of the rice hoja blanca virus (RHBV) was studied by following the segregation of progeny of crosses between insects of known pedigree and known ability to support virus replication and transmission. Virus transmission to...


Zeigler, Robert S.Morales, Francisco José[Genetic determination of replication of rice hoja blanca virus within its planthopper vector, Sogatodes oryzicola]Genetic determination of replication of rice hoja blanca virus within its planthopper vector, Sogatodes oryzicola

A new disease of rice, known as ‘entorchamiento’ (crinkling), was first noticed in the Department of Meta, Colombia, in 1991. Symptoms include seedling death, foliar striping and severe plant malformation. Tissue extracts and purified preparations from diseased rice plants, contained virus-like p...


Morales, Francisco JoséWard, ElaineCastaño, MauricioArroyave, José A.Lozano Potes, IvánAdams, Michael J.[Emergence and partial characterization of rice stripe necrosis virus and its fungus vector in South America]Emergence and partial characterization of rice stripe necrosis virus and its fungus vector in South America

Two monoclonal antibodies prepared to purified virions of bean golden mosaic virus (BGMV) isolates from Guatemala (GA) and the Dominican Republic (DR) and one monoclonal antibody prepared to the coat protein of a BGMV isolate from Brazil (BZ) expressed in Escherichia coli were useful serological ...


Cancino, MAbouzid, AMMorales, Francisco JoséPurcifull, DEPolston, JEHiebert, E[Generation and characterization of three monoclonal antibodies useful in detecting and distinguishing bean golden mosaic virus isolates]Generation and characterization of three monoclonal antibodies useful in detecting and distinguishing bean golden mosaic virus isolates

The cultivation of calopo, Calopogonium mucunoides, as a promising forage legume for the lowland tropics, was hindered by its susceptibility to a severe yellow mosaic disease observed in the Eastern Plains of Colombia. An isometric virus ca. 28 nm in diameter was observed by electron microscopy i...


Morales, Francisco JoséCastaño, M.Arroyave, José A.Ospina, MD[A sobemovirus hindering the utilization of Calopogonium mucunoides as a forage legume in the lowland tropics]A sobemovirus hindering the utilization of Calopogonium mucunoides as a forage legume in the lowland tropics

A virus with filamentous particles approximately 750 nm long was isolated from African oil palm (Elaeis guineensis) with `chlorotic ring' leaf symptoms in south-western Colombia. The virus was mechanically transmitted from oil palm to brachiaria, maize, sorghum, and sugarcane (Gramineae) but not ...


Morales, Francisco JoséLozano Potes, ISedano Cruz, RECastaño, M.Arroyave, José A.[Partial characterization of a potyvirus infecting African oil palm in South America]Partial characterization of a potyvirus infecting African oil palm in South America

A tymovirus was isolated from passion fruit plants with conspicuous yellow mosaic leaf symptoms in Colombia. Partial sequencing of its genome showed that this virus is distinct from other tymoviruses for which nucleotide sequences are available; it had only 60 76% homology with the closest relate...


Morales, Francisco JoséLozano Potes, ICastaño, M.Arroyave, José A.Velasco, Ana CeciliaVaron de Agudelo, F.[Partial characterization of a tymovirus infecting passion fruit in Colombia, South America]Partial characterization of a tymovirus infecting passion fruit in Colombia, South America

Tomato yellow mosaic was first described in 1963, as a disease caused by a geminivirus transmitted by the whitefly Bemisia tabaci in Venezuela. In 1981 and 1985, Tomato yellow mosaic virus (ToYMV) was reported to occasionally infect potato plants growing in the proximity of tomato plantings affec...


Morales, Francisco JoséLastra, RUzcategui, RCCalvert, Lee A.[Potato yellow mosaic virus: A synonym of Tomato yellow mosaic virus]Potato yellow mosaic virus: A synonym of Tomato yellow mosaic virus

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