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Experts from the University of São Paulo analyzed blood samples from Brazil and found that people who have had Dengue previously are twice as likely to exhibit COVID-19 symptoms when infected by the S ARS-CoV-2 virus. The study is published in the Oxford Academic journal Clinical Infectious Diseases. The researchers collected blood samples from 1,285 residents of Mâncio Lima, a small town in the state of Acre, part of Brazil's Amazon region. The results showed that the [...]

A study published in the Proceedings of the National Academy of Sciences (PNAS) refutes the argument that biofuels are not sustainable because the conversion of non-agricultural land to grow energy crops could lead to a significant initial decrease in carbon storage, creating what is known as a "biofuel carbon debt". The study reveals that the greenhouse gas (GHG) mitigation potential of switchgrass (Panicum virgatum) cultivation for cellulosic ethanol production in the U.S. was [...]

An international group of researchers led by scientists from Brazil's Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) has assembled the most complete genome sequence of commercial sugarcane, mapping 373,869 genes, equivalent to 99.1% of the total genome. The group sequenced the variety SP80-3280, one of the top 20 sugarcane varieties grown in São Paulo. It was chosen for sequencing because more data are available about [...]

The sugarcane grown today is a hybrid from two species, Saccharum officinarum – the original sugarcane domesticated in India 3,000 years ago – and S. spontaneum. The genome of sugarcane which was completed a few months ago contains 10 billion base pairs in 100-130 chromosomes, three times the size of the human genome. According to Marcelo Falsarella Carazzolle, bioinformatics coordinator in the Genomics and Bioenergy Laboratory at the University of Campinas's Biology Institute [...]

A team led by Professor Marcelo Menossi at the University of Campinas's Biology Institute (IB-UNICAMP) in Brazil has found that the key to overcoming a major constraint on sugarcaneyield could lie in a gene called ScGAI. Sugarcane yields have been static for decades due to the constraints on culm development. The culm's sugar storage capacity is physically limited, restricting the volume of sucrose and biomass that can be obtained from the crop for sugar and ethanol production. Menossi [...]