Seed performance after exposure to high temperatures Desempenho de sementes após exposição a altas temperaturas

In orthodox seed management, the application of temperatures over 42ºC is routinely associated with deterioration while biological behaviors in operations conducted under high temperatures are hardly ever studied. The results found, however, indicate the possibility of stationary drying of soybean seeds at 50ºC, provided that the insufflated air flow intensity is considered, as well as the reduction of B. brizantha seed dormancy submitted to 85ºC.<br>No manejo de sementes ortodoxas, a aplicação de temperaturas superiores a 42ºC é, rotineiramente, associada à deterioração e raramente são estudados os comportamentos biológicos presentes em operações conduzidas sob temperaturas superiores. Resultados obtidos, contudo, indicam possibilidades de secagem estacionária de sementes de soja a 50ºC, desde que considerada a intensidade do fluxo do ar insuflado, e de redução na dormência de sementes de B. brizantha submetidas a 85ºC

If you're not confused, you're not paying attention: Ochrobactrum is not Brucella

Bacteria of the genus Brucella are facultative intracellular parasites that cause brucellosis, a severe animal and human disease. Recently, a group of taxonomists merged the brucellae with the primarily free-living, phylogenetically related Ochrobactrum spp. in the genus Brucella. This change, founded only on global genomic analysis and the fortuitous isolation of some opportunistic Ochrobactrum spp. from medically compromised patients, has been automatically included in culture collections and databases. We argue that clinical and environmental microbiologists should not accept this nomenclature, and we advise against its use because (i) it was presented without in-depth phylogenetic analyses and did not consider alternative taxonomic solutions; (ii) it was launched without the input of experts in brucellosis or Ochrobactrum; (iii) it applies a non-consensus genus concept that disregards taxonomically relevant differences in structure, physiology, population structure, core-pangenome assemblies, genome structure, genomic traits, clinical features, treatment, prevention, diagnosis, genus description rules, and, above all, pathogenicity; and (iv) placing these two bacterial groups in the same genus creates risks for veterinarians, medical doctors, clinical laboratories, health authorities, and legislators who deal with brucellosis, a disease that is particularly relevant in low- and middle-income countries. Based on all this information, we urge microbiologists, bacterial collections, genomic databases, journals, and public health boards to keep the Brucella and Ochrobactrum genera separate to avoid further bewilderment and harm