Publications by authors named "Pedro Marcus Vidigal"
Article Synopsis
- The study investigates how changes in bovine seminal plasma proteins affect sperm function and fertility in bulls, using a proteomic approach.
- Researchers analyzed seminal plasma from Nellore bulls with different sperm abnormalities using liquid chromatography and mass spectrometry, identifying 297 proteins.
- This research provides valuable insights into the relationship between seminal plasma protein profiles and sperm quality, contributing to our understanding of reproduction in Nellore bulls.
Article Synopsis
- Sexual rest in bulls leads to lower conception rates, shown by high volumes of ejaculate with many dead sperm, although the exact biochemical reasons are not fully understood.
- A study with six Nellore bulls evaluated their semen through collections, revealing significant differences in sperm quality and biochemical markers between the first and fourth ejaculates.
- Findings indicated that the first ejaculate had poorer enzyme activity and higher lipid peroxidation, whereas the fourth ejaculate showed better sperm quality due to differences in fatty acid composition and protein abundance.
Unlabelled: Drought stress is major abiotic stress that affects soybean production. Therefore, it is widely desirable that soybean becomes more tolerant to stress. To provide insights into regulatory mechanisms of the stress response, we compared the global gene expression profiles from leaves of two soybean genotypes that display different responses to water-deficit (BR 16 and Embrapa 48, drought-sensitive and drought-tolerant, respectively).
View Article and Find Full Text PDFArticle Synopsis
- The study analyzed the saliva of three triatomine species: Rhodnius prolixus, Triatoma lecticularia, and Panstrongylus herreri, focusing on proteins found in their saliva.
- Researchers used mass spectrometry and 2-D electrophoresis to create detailed protein spectra and profiles.
- The data included various protein characteristics such as UniProt codes, molecular weight, isoelectric points, and insights into biological functions and processes of identified proteins.
Comparative proteomic analysis of the saliva of the Rhodnius prolixus, Triatoma lecticularia and Panstrongylus herreri triatomines reveals a high interespecific functional biodiversity.
Insect Biochem Mol Biol
April 2016
Triatomines are hematophagous arthropods that transmit Trypanosoma cruzi and Trypanosoma rangeli. Feeding behavior and pathogen transmission is known to vary between the different species, and this characteristic is directly or indirectly dependent on the bioactive molecules of the saliva that facilitate the vector-host-parasite interaction. Here, we identify, characterize and compare the sialoproteomic (from the Greek sialo: saliva) repertoire of important species of the main triatomine genera in the Americas (Rhodnius prolixus, Triatoma lecticularia and Panstrongylus herreri) to better explain this interaction through two-dimensional electrophoresis and mass spectrometry.
View Article and Find Full Text PDF