First report of Tomato interveinal chlorosis virus infecting plants in Brazil.

Tomato interveinal chlorosis virus (ToICV; , genus , family ) has been described infecting tomato () and in Northeastern (NE) Brazil for more than a decade (Albuquerque et al., 2012; Silva et al., 2012).

First report of Neopestalotiopsis foedans causing pestalotia spot in leaf on coconut in Brazil.

The coconut (Cocos nucifera L., Arecaceae) is one of the most important tropical species used by humans. In Brazil, its cultivation has been expanding in the recent years (Souza et al.

First report of causing anthracnose on in Brazil.

Brazil is the world's largest producer and consumer of yellow passion fruit (Passiflora edulis f. flavicarpa), mainly for the manufacture of concentrate and frozen juice as well as for fresh consumption (Faleiro et al. 2005).

Contrasting genetic structure between two begomoviruses infecting the same leguminous hosts.

Begomoviruses are whitefly-transmitted, ssDNA plant viruses and are among the most damaging pathogens causing epidemics in economically important crops worldwide. Wild/non-cultivated plants play a crucial epidemiological role, acting as begomovirus reservoirs and as 'mixing vessels' where recombination can occur. Previous work suggests a higher degree of genetic variability in begomovirus populations from non-cultivated hosts compared with cultivated hosts.

Circular DNA genomics (circomics) exemplified for geminiviruses in bean crops and weeds of northeastern Brazil.

Circomics was coined to describe the combination of rolling circle amplification (RCA), restriction fragment length polymorphism (RFLP) and pyro-sequencing to investigate the genome structures of small circular DNAs. A batch procedure is described using 61 plant samples from Asia, South America and Central America which revealed 83 contig sequences of geminiviral DNA components and 4 contig sequences of DNA satellites. The usefulness of this approach is validated for the Brazilian begomoviruses, and the sequence fidelity is determined by comparing the results with those of conventional cloning and sequencing of Bolivian begomoviruses reported recently.