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Registration of biological pest control products exceeds that of agrochemicals in Brazil
Publicado em 19 abril 2024
The number of biological products registered in Brazil in recent years for crop protection against agricultural pests has surpassed that of agrochemicals. Around 90% of the area under sugarcane cultivation in the country, for example, already uses natural enemies such as microorganisms, macroorganisms, biochemicals (compounds of natural origin that control pests and diseases) and semiochemicals (molecules that induce behavioral responses in target organisms).
The data were presented by [...]
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Newly sequenced genome reveals coffee’s prehistoric origin story — and its future under climate change
Publicado em 15 abril 2024(Press-News.org) BUFFALO, N.Y. — The key to growing coffee plants that can better resist climate change in the decades to come may lie in the ancient past. Researchers co-led by the University at Buffalo have created what they say is the highest quality reference genome to date of the world’s most popular coffee species, Arabica, unearthing secrets about its lineage that span millennia and continents. Their findings, published today in Nature Genetics, suggest that Coffea [...]ver notícia -
Hydrogen recombination found to be most plausible explanation for high levels of energy in stellar superflares
Publicado em 15 abril 2024(Press-News.org) Although their primary purpose is to look for exoplanets, observatories like the Kepler Space Telescope and the Transiting Exoplanet Survey Satellite (TESS) have supplied a vast amount of data on stellar flares, detected with high-precision photometry by broadband filters in the visible light spectrum. The stars are so far away that they appear only as points of light to these telescopes, and the phenomena interpreted as stellar flares are abrupt increases in the brightness [...]ver notícia -
System uses artificial intelligence to detect wild animals on roads and avoid accidents
Publicado em 09 abril 2024Just as drivers in Brazil can be warned of traffic congestion ahead or a vehicle parked on the hard shoulder, notifications may soon pop up on their smartphone or on their car’s computer screen to warn them in real time that an anteater, wolf or tapir is crossing the highway. No human will necessarily need to see the animal in question or press a control button to send the warning. For this to be possible, a key step is construction of a computer vision model that automatically detects [...]ver notícia -
Scientists find one of the most ancient stars that formed in another galaxy
Publicado em(Press-News.org) The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. The iron running in your veins and the calcium in your teeth and the sodium powering your thoughts were all born in the heart of a long-dead star. No one has been able to find one of those first generation of stars, but scientists have announced a unique [...]ver notícia -
Multiple Organ Attack and Immune Dysregulation: Study Reveals How the Chikungunya Virus Leads to Death
Publicado em(Press-News.org) The chikungunya virus, transmitted by Aedes aegypti and Aedes albopictus mosquitoes and responsible for more than 900 deaths in Brazil since it arrived around ten years ago, is capable of spreading through the blood, reaching multiple organs and crossing the blood-brain barrier, which protects the central nervous system. The mechanisms of action observed for the first time in fatal cases by a group of Brazilian, American and British researchers were reported [...]ver notícia -
Restoration of degraded areas in semi-arid region contributes to ‘return’ of soil microorganisms, study shows
Publicado emBacteria, fungi and archaea living in the soil provide several ecosystem services, including carbon storage, and help restore native characteristics. The result contributes to advances in sustainable agriculture, one key point for this year’s G20 Restoration of degraded areas in semi-arid region contributes to ‘return’ of soil microorganisms, study shows2024-03-05 (Press-News.org) Strategies deployed for the restoration of degraded land have had promising results in [...]ver notícia -
Metal in glitter impairs aquatic plant growth, study shows
Publicado em 26 fevereiro 2024Researchers at the Federal University of São Carlos found that glitter’s metal coating reduced the amount of light penetrating water bodies and hence impaired photosynthesis by the Large-flowered waterweed Egeria densa. The problem may impact primary p (Press-News.org) Glitter is used in a wide array of colors and shapes in apparel, footwear, cosmetics, makeup, handbags, festive decorations, arts and crafts, and jewelry, among many other applications. During the Carnival [...]ver notícia -
Rare case of opossum infected by rabies sounds alarm regarding circulation of this virus in urban environments
Publicado em 16 fevereiro 2024(Press-News.org) A female White-eared opossum (Didelphis albiventris) found dead in 2021 in Bosque dos Jequitibás Park in the center of Campinas, one of the largest cities in São Paulo state, Brazil, died from rabies meningoencephalitis, according to a group of researchers at the University of São Paulo (USP) and Adolfo Lutz Institute (IAL), the regional reference laboratory, working with health professionals affiliated with public institutions in São Paulo city and [...]ver notícia -
Discoveries can be used to optimize production of annatto powder
Publicado em 09 fevereiro 2024(Press-News.org) Researchers at the University of São Paulo’s Luiz de Queiroz College of Agriculture (ESALQ-USP) and the Federal University of Viçosa (UFV) in Brazil have shown for the first time that bixin or annatto powder, a carotenoid pigment extracted from the seeds of the achiote or annatto tree (Bixa orellana), is not produced only in the seeds but also in other organs, and that the process intensifies in the plant’s adult phase. An article on the study [...]ver notícia