The toxicity of these ketone toxins have not been fully characterized nor are the pathogenesis and sequelae of poisoning completely understood. The objective of the current study was to characterize and describe the clinical and pathologic changes of rayless
goldenrod toxicity in goats. Fifteen goats were gavaged with rayless goldenrod to obtain benzofuran ketone doses of 0, 10, 20, 40, and 60 mg/kg/day. After 7 treatment days, check details the goats were euthanized, necropsied, and tissues were processed for microscopic studies. After 5 or 6 days of treatment, the 40-mg/kg and 60-mg/kg goats were reluctant to move, stood with an erect stance, and became exercise intolerant. They had increased resting heart rate, prolonged recovery following exercise, and increased serum aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, and creatinine kinase activities. All treated animals developed skeletal myopathy with dose-related distribution and severity. The goats dosed with 20 mg/kg and higher also developed myocardial degeneration and necrosis. Although skeletal myonecrosis was patchy and widely distributed, the quadriceps femoris was consistently damaged, even in low-dosed animals. Myocardial lesions were most severe in the papillary muscles of 60-mg/kg dosed animals. This indicates
that goats are highly susceptible to rayless goldenrod poisoning, and that the characteristic lesion of poisoning is buy Buparlisib skeletal and cardiac
myonecrosis.”
“Purple acid phosphatase (PAP; EC 3.1.3.2) enzymes are metallophosphoesterases that hydrolysis phosphate ester bonds in a wide range of substrates. Twenty-nine PAP-encoding loci have been identified in the Arabidopsis genome, many of which have multiple transcript variants expressed in response to diverse environmental conditions. Having analyzed T-DNA insertion see more mutants, we have provided strong pieces of evidence that AtPAP9 locus encodes at least two types of transcripts, designated as AtPAP9-1 and AtPAP9-2. These transcript variants expressed distinctly during the course of growth in medium containing sufficient phosphate or none. Further histochemical analysis by the use of AtPAP9-1 promoter fused to B-glucuronidase reporter gene indicated the expression of this gene is regulated in a tissue-specific manner. AtPAP9-1 was highly expressed in stipule and vascular tissue, particularly in response to fungal infection. Subcellular localization of AtPAP9-1:green fluorescent fusion protein showed that it must be involved in plasma membrane and cell wall adhesion. (C) 2014 Published by Elsevier B.V.”
“Flixweed (Descurainia Sophia L) is a problematic weed in winter wheat fields in China, which causes great loss of wheat yield. A total of 46 flixweed accessions from winter wheat-planting areas were collected and used for the survey of resistance to tribenuron-methyl and Pro197 mutation diversity.