Resistência a inseticidas em populações de Tibraca limbativentris.

O objetivo desse trabalho foi determinar a curva de dose-resposta para verificar a suscetibilidade do percevejo do colmo Tibraca limbativentris provenientes dos estados de Goiás e Pará aos inseticidas lambda-cialotrina e endosulfan

Curva de dose-resposta a inseticidas para o percevejo dos grãos Oebalus poecilus (Hemiptera: Pentatomidae).

Esse trabalho objetivou determinar a curva de dose resposta para a população padrão de suscetibilidade de O. poecilus aos inseticidas endosulfan e lambda-cialotrina, para posterior estudo de detecção em outras populações desta espécie nas principais regiões produtoras de arroz

Meloidogyne incognita: molecular cloning and characterization of a cDNA encoding a cathepsin D-like aspartic proteinase.

Made available in DSpace on 2018-06-13T00:43:30Z (GMT). No. of bitstreams: 1 SP19748ID31746.PDF: 1058825 bytes, checksum: 149f0214de61c9c6736076381cd2c9e5 (MD5) Previous issue date: 2009-09-0

ESPRESSO: The next European exoplanet hunter

The acronym ESPRESSO stems for Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations; this instrument will be the next VLT high resolution spectrograph. The spectrograph will be installed at the Combined-Coud\'e Laboratory of the VLT and linked to the four 8.2 m Unit Telescopes (UT) through four optical Coud\'e trains. ESPRESSO will combine efficiency and extreme spectroscopic precision. ESPRESSO is foreseen to achieve a gain of two magnitudes with respect to its predecessor HARPS, and to improve the instrumental radial-velocity precision to reach the 10 cm/s level. It can be operated either with a single UT or with up to four UTs, enabling an additional gain in the latter mode. The incoherent combination of four telescopes and the extreme precision requirements called for many innovative design solutions while ensuring the technical heritage of the successful HARPS experience. ESPRESSO will allow to explore new frontiers in most domains of astrophysics that require precision and sensitivity. The main scientific drivers are the search and characterization of rocky exoplanets in the habitable zone of quiet, nearby G to M-dwarfs and the analysis of the variability of fundamental physical constants. The project passed the final design review in May 2013 and entered the manufacturing phase. ESPRESSO will be installed at the Paranal Observatory in 2016 and its operation is planned to start by the end of the same year.Comment: 12 pages, figures included, accepted for publication in Astron. Nach

Estudo da expressão do gene ACC Synthase em frutos de P. tenuifila.

Ref. 71408

Caracterização do gene ácido cafeico-O-Methyl Transferase de Passiflora tenuifila.

Ref. 71321

BRS A504 CL: a new herbicide resistant upland cultivar with high quality grain.

BRS A504 CL is a new rice cultivar, resistant to herbicides from the imidazolinone chemical group, developed for the Clearfield Production System for upland rice in Brazil. The cultivar has excellent grain quality and yield potential of 8,188 kg ha-1.Cultivar release

Novel role for the innate immune receptor toll-like receptor 4 (TLR4) in the regulation of the wnt signaling pathway and photoreceptor apoptosis

Recent evidence has implicated innate immunity in regulating neuronal survival in the brain during stroke and other neurodegenerations. Photoreceptors are specialized light-detecting neurons in the retina that are essential for vision. In this study, we investigated the role of the innate immunity receptor TLR4 in photoreceptors. TLR4 activation by lipopolysaccharide (LPS) significantly reduced the survival of cultured mouse photoreceptors exposed to oxidative stress. With respect to mechanism, TLR4 suppressed Wnt signaling, decreased phosphorylation and activation of the Wnt receptor LRP6, and blocked the protective effect of the Wnt3a ligand. Paradoxically, TLR4 activation prior to oxidative injury protected photoreceptors, in a phenomenon known as preconditioning. Expression of TNFα and its receptors TNFR1 and TNFR2 decreased during preconditioning, and preconditioning was mimicked by TNFα antagonists, but was independent of Wnt signaling. Therefore, TLR4 is a novel regulator of photoreceptor survival that acts through the Wnt and TNFα pathways. © 2012 Yi et al

BRS A502: cultivar de arroz de terras altas com resistência ao acamamento e grãos de excelente qualidade industrial e culinária.

A Embrapa e parceiros do Programa de Melhoramento Genético de Arroz de Terras Altas, disponibilizam uma nova cultivar de arroz, BRS A502. As principais características são a elevada resistência ao acamamento, ciclo médio, alto potencial produtivo e grãos de excelente qualidade industrial e culinária. BRS A502 é uma cultivar que pode ser utilizada em diversas condições de cultivo, incluindo a rotação e a sucessão de culturas em áreas sob agricultura intensiva (terras velhas) nas principais regiões produtoras do Brasil.bitstream/item/215236/1/CNPAF-2020-CT253.pd