RESUMEN
Akhila and MilanaBonita are mycobacteriophages that were isolated from soil in New York using Mycobacterium smegmatis. Both phages have genomes that are 56,251 bp long and contain 99 genes; the genomes differ by only 1 nucleotide. Based on gene content similarity to phages in the Actinobacteriophage Database, both phages are assigned to cluster F1.
RESUMEN
Reef corals typically contain a number of pigments, mostly due to their symbiotic relationship with photosynthetic dinoflagellates. These pigments usually vary in presence and concentration and influence the spectral characteristics of corals. We studied the variations in pigment composition among seven Caribbean shallow-water Scleractinian corals by means of High Performance Liquid Chromatography (HPLC) analysis to further resolve the discrimination of corals. We found a total of 27 different pigments among the coral species, including some alteration products of the main pigments. Additionally, pigments typically found in endolithic algae were also identified. A Principal Components Analysis and a Hierarchical Cluster Analysis showed the separation of coral species based on pigment composition. All the corals were collected under the same physical environmental conditions. This suggests that pigment in the coral's symbionts might be more genetically-determined than influenced by prevailing physical conditions of the reef. We further investigated the use of remote sensing reflectance (Rrs) as a tool for estimating the total pigment concentration of reef corals. Depending on the coral species, the Rrs and the total symbiont pigment concentration per coral tissue area correlation showed 79.5-98.5% confidence levels demonstrating its use as a non-invasive robust technique to estimate pigment concentration in studies of coral reef biodiversity and health.
Asunto(s)
Antozoos/metabolismo , Pigmentos Biológicos/química , Animales , Antozoos/clasificación , Antozoos/genética , Región del Caribe , Pigmentos Biológicos/genética , Tecnología de Sensores Remotos , Análisis EspectralRESUMEN
El embarazo no es común en pacientes con tratamiento dialítico, su frecuencia oscila entre 0,5-0,9 por ciento en mujeres en edad reproductiva y con enfermedad renal crónica terminal. Existen una gran variedad de factores hormonales y no hormonales que reducen la fertilidad por lo que el diagnóstico y culminación de un embarazo en estas condiciones requieren de un control médico estricto y multidisciplinario. Presentamos el caso de una paciente de 22 años de edad, con diagnótico de insuficiencia renal crónica terminal secundaria a nefritis intersticial crónica, en hemodiálisis desde agosto de 1997, 3 sesiones semanales, con fución residual de aproximadamente 2.300 mL/24 horas. En julio de 1999 es evaluada por nauseas, vómitos, malestar general y amenorrea, motivo por el cual se realiza prueba de embarazo de sangre que se reporta como positiva y se practica ultrasonido abdominal que reporta embarazo simple de 9 meses más tres días por biometría fetal. A partir de este momento se planifican 5 sesiones de diálisis semanales de 3 horas de duración, adecuada manejo de la anemia con eritropoyetina y seguimiento fetal quincenal. A las 32,5 semanas presenta trabajo de parto prematuro que no responde a útero inhibidores y se obtiene recién nacido vivo de 1.500 grs