Basin‐scale distribution and haplotype partitioning in different genetic lineages of the Neotropical migratory fish Salminus brasiliensis          下载免费PDF全文

Eva C. Rueda  Sebastián Sanchez  María Cecilia Bruno  Jorge Casciotta  Gastón Aguilera  Adriana E. Almirón  Federico J. Ruiz Díaz  Delia Fabiana Cancino  Baltazar Bugeau  Ezequiel Mabragaña  Mariano González‐Castro  Matías Delpiani  Juan Martín Díaz de Astarloa 《水产资源保护:海洋与淡水生态系统》2018,28(2):444-456

Analytic and quality control validation and assessment of field performance of a point‐of‐care chemistry analyzer for use in the White rhinoceros          下载免费PDF全文

Emma H. Hooijberg  Gerhard Steenkamp  Jacques P. du Preez  Amelia Goddard 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2017,46(1):100-110

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Epididymis of Viscacha (Lagostomus maximus maximus): A Morphological Comparative Study in Relation to Sexual Maturity          下载免费PDF全文

A. A. M. Cruceño  C. I. Aguilera‐Merlo  E. M. Chaves  F. H. Mohamed 《Anatomia, histologia, embryologia》2017,46(1):73-84

The morphological variations and the androgen receptor (AR) expression were studied in viscacha epididymis in relation to sexual maturity. The animals were divided into immature, pre‐pubertal and adult, according to their corporal weight and testicular histology. The epididymides were studied by light microscopy, immunohistochemistry for AR and morphometric analysis. In pre‐pubertal and adult animals, four well‐differentiated segments (initial, caput, corpus and cauda) were observed, while in immature animals, three segments were identified (initial‐caput segment, corpus and cauda). In each segment, the structural parameters and the relative cell distribution were different between the groups. The serum testosterone levels of pre‐pubertal and adults showed a very significant increase related to sexual maturity. The AR expression in epithelial and fibromuscular stromal cells was different between the groups. In conclusion, the present work demonstrates that the morphological characteristics of the viscacha epididymis vary while sexual maturity is reached, the development of initial and caput is subsequent to corpus and cauda development and the androgens might play an important role during this process.  相似文献   

Rice response to simultaneous bacterial blight and drought stress during compatible and incompatible interactions     

Gerbert Sylvestre Dossa  Rolando Torres  Amelia Henry  Ricardo Oliva  Edgar Maiss  Casiana Vera Cruz  Kerstin Wydra 《European journal of plant pathology / European Foundation for Plant Pathology》2017,147(1):115-127

Plant response to one type of stress can be affected by simultaneous exposure to a second stress, for example when abiotic and biotic stresses occur together. Ten rice genotypes comprising those with bacterial blight (BB) resistance (R) genes, drought quantitative trait loci (QTLs) plus a BB R gene, and BB susceptible genotypes, were subjected to mild and moderate drought stress and plants were inoculated with two Xoo strains (PXO99 and PXO145) to simulate the challenges rice crops face under simultaneous stress of drought and BB. Plant height and dry shoot biomass were significantly reduced by drought stress treatments. The BB disease lesion lengths varied according to rice genotypes and PXO99 Xoo multiplication and spread in planta was higher compared to that of PXO145, which generally decreased under mild drought stress. Rice genotype IRBB7 (Xa7) showed less Xoo spread and a reduced Xoo multiplication under drought stress compared to the well-watered control with PXO145. In contrast, in genotypes with a different BB R gene and/or drought QTLs [IRBB4 (Xa4), IR87705–6-9-B (Xa4 + qDYT _2.2 ), IR87707–445-B-B-B (Xa4 + qDYT _2.2  + qDYT _4.1 ) and IR87707–446-B-B-B (Xa4 + qDYT _2.2  + qDYT _4.1 )], Xoo multiplication and spread in planta was higher with drought stress. This study has shown that drought stress affected rice response to the BB pathogen and the response varied according to the rice genotype. It is concluded that evaluating rice varieties under combined abiotic and biotic stresses will be the best strategy to determine biotic stress resistance durability under climate change.  相似文献   

Pot-bellied Vietnamese pig with visceral mast cell tumors and mastocytemia     

Abby M. Willey  Brittany S. Baughman  Jennifer M. Beam  Nataly Mamaliger  Gretchen P. Grissett  Amelia R. Woolums  Marjorie J. Williams  Matthew L. Williams 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2023,52(1):108-111

An approximately 12-year-old female Vietnamese Pot-Bellied Pig was presented to the Mississippi State College of Veterinary Medicine Food Animal Service for anorexia of 2 days duration. On physical examination, the patient appeared depressed and lethargic with significantly pale mucus membranes, open mouth breathing, and nostril flaring. On abdominal palpation, the abdomen was tense and uncomfortable. A complete blood count (CBC) and chemistry profile were performed. The CBC revealed significant anemia and mild leukocytosis characterized by mild neutrophilia with a left shift. Mast cells were rarely observed. Hematocrit = 8.1% (RI 22-50), RBC = 1.25 × 10⁶/μL (RI 3.6-7.8), WBC = 19.85 × 10³/μL (RI 5.2-17.9), Neutrophils = 15.08 × 10³/μL (RI 0-11.4), and Bands = 0.993 × 10³/μL (RI 0-0.019). The chemistry profile was unremarkable with a mildly elevated BUN and slightly decreased total protein and albumin (BUN = 39 mg/dL [RI 4.2-15.1], total protein = 6.2 g/dL [RI 6.6-8.9], and albumin = 2.5 g/dL [RI 3.6-5.0]). An abdominal ultrasound revealed numerous hypoechoic nodules diffusely scattered throughout the hepatic parenchyma. An FNA of one of the hepatic nodules was performed. A mild suppurative component and numerous variably granulated mast cells were observed. A presumptive cytologic diagnosis of mast cell tumor was made. Histopathology was performed, confirming the cytologic interpretation.  相似文献