Sweet Cherry Plants Prioritize Their Response to Cope with Summer Drought, Overshadowing the Defense Response to Pseudomonas syringae pv. syringae.

Disease severity and drought due to climate change present significant challenges to orchard productivity. This study examines the effects of spring inoculation with Pseudomonas syringae pv. syringae (Pss) on sweet cherry plants, cvs. Bing and Santina with varying defense responses, assessing plant growth, physiological variables (water potential, gas exchange, and plant hydraulic conductance), and the levels of abscisic acid (ABA) and salicylic acid (SA) under two summer irrigation levels. Pss inoculation elicited a more pronounced response in 'Santina' compared to 'Bing' at 14 days post-inoculation (dpi), and those plants inoculated with Pss exhibited a slower leaf growth and reduced transpiration compared to control plants during 60 dpi. During differential irrigations, leaf area was reduced 14% and 44% in Pss inoculated plants of 'Bing' and 'Santina' respectively, under well-watered (WW) conditions, without changes in plant water status or gas exchange. Conversely, water-deficit (WD) conditions led to gas exchange limitations and a 43% decrease in plant biomass compared to that under WW conditions, with no differences between inoculation treatments. ABA levels were lower under WW than under WD at 90 dpi, while SA levels were significantly higher in Pss-inoculated plants under WW conditions. These findings underscore the influence on plant growth during summer in sweet cherry cultivars that showed a differential response to Pss inoculations and how the relationship between ABA and SA changes in plant drought level responses.

Nitric Oxide Mitigates the Deleterious Effects Caused by Infection of Pseudomonas syringae pv. syringae and Modulates the Carbon Assimilation Process in Sweet Cherry under Water Stress.

Bacterial canker is an important disease of sweet cherry plants mainly caused by Pseudomonas syringae pv. syringae (Pss). Water deficit profoundly impairs the yield of this crop. Nitric oxide (NO) is a molecule that plays an important role in the plant defense mechanisms. To evaluate the protection exerted by NO against Pss infection under normal or water-restricted conditions, sodium nitroprusside (SNP), a NO donor, was applied to sweet cherry plants cv. Lapins, before they were exposed to Pss infection under normal or water-restricted conditions throughout two seasons. Well-watered plants treated with exogenous NO presented a lower susceptibility to Pss. A lower susceptibility to Pss was also induced in plants by water stress and this effect was increased when water stress was accompanied by exogenous NO. The lower susceptibility to Pss induced either by exogenous NO or water stress was accompanied by a decrease in the internal bacterial population. In well-watered plants, exogenous NO increased the stomatal conductance and the net CO2 assimilation. In water-stressed plants, NO induced an increase in the leaf membranes stability and proline content, but not an increase in the CO2 assimilation or the stomatal conductance.

Transcriptome Analysis of Sweet Cherry (Prunus avium L.) Cultivar 'Lapins' upon Infection of Pseudomonas syringae pv. syringae.

Bacterial canker caused by Pseudomonas syringae pv. syringae (Pss) is responsible for substantial loss to the production of sweet cherry in Chile. To date, the molecular mechanisms of the Pss-sweet cherry interaction and the disease-related genes in the plant are poorly understood. In order to gain insight into these aspects, a transcriptomic analysis of the sweet cherry cultivar 'Lapins' for differentially expressed genes (DEGs) in response to Pss inoculation was conducted. Three Pss strains, A1M3, A1M197, and 11116_b1, were inoculated in young twigs, and RNA was extracted from tissue samples at the inoculation site and distal sections. RNA sequencing and transcriptomic expression analysis revealed that the three strains induced different patterns of responses in local and distal tissues. In the local tissues, A1M3 triggered a much more extensive response than the other two strains, enriching DEGs especially involved in photosynthesis. In the distal tissues, the three strains triggered a comparable extent of responses, among which 11116_b1 induced a group of DEGs involved in defense responses. Furthermore, tissues from various inoculations exhibited an enrichment of DEGs related to carbohydrate metabolism, terpene metabolism, and cell wall biogenesis. This study opened doors to future research on the Pss-sweet cherry interaction, immunity responses, and disease control.

Lesión penetrante intracraneana transorbitaria, con compromiso de seno cavernoso en paciente pediátrico / Transorbital penetrating intracranial injury, with cavernous sinus involvement

Las lesiones traumáticas penetrantes transorbitarias-intracraneanas son infrecuentes en población pediátrica, pudiendo ocurrir en el contexto de accidentes domésticos, deportivos o escolares. Pueden extenderse a la base del cráneo y comprometer estructuras vasculares como el seno cavernoso y carótida interna. Se presenta el caso de una niña de 6 años de edad, que sufre lesión penetrante transorbitaria intracraneal con un lápiz de madera, con trayecto cruzado desde borde medial de órbita izquierda, transetmoidal y transesfenoidal, ingresando a región selar derecha e improntando a arteria carótida derecha (porción cavernosa). Luego de los estudios prequirúrgicos, se realizó extirpación de cuerpo extraño con cirugía endoscópica+control endovascular en caso de lesión carotidea. Posterior a resecar cuerpo extraño, se reparó fístula de LCR evidenciada intraoperatoriamente. La paciente se recuperó adecuadamente, sin déficit neurológico, sin fístula postoperatoria de LCR, sin infección del SNC ni alteración oculomotora (AU)

Transorbitary intracranial penetrating traumatic injuries are uncommon in the pediatric population, and may occur in the context of domestic, sporting or school accidents. They can extend to skull base and compromise vascular structures such as cavernous sinus and internal carotid. We present a case of 6 years-old girl that suffered an intracranial transorbital penetrating injury with a wooden pencil that crossed from the medial edge of left orbit, transetmoidal and trans-sphenoidal, entering the right sellar region and leaving its end in contact with carotid artery (cavernous segment). After pre-surgical studies, foreign body removal was performed with endoscopic surgery+endovascular control in case of carotid injury. After removing the foreign body, a CSF fistula occurred and was repaired. Patient recovered adequately, without neurological deficit, without postoperative CSF fistula, without CNS infection or oculomotor alteration (AU)

Transorbital penetrating intracranial injury, with cavernous sinus involvement.

Transorbitary intracranial penetrating traumatic injuries are uncommon in the paediatric population, and may occur in the context of domestic, sporting or school accidents. They can extend to skull base and compromise vascular structures such as cavernous sinus and internal carotid. We present a case of 6 years-old girl that suffered an intracranial transorbital penetrating injury with a wooden pencil that crossed from the medial edge of left orbit, transetmoidal and trans-sphenoidal, entering the right sellar region and leaving its end in contact with carotid artery (cavernous segment). After pre-surgical studies, foreign body removal was performed with endoscopic surgery + endovascular control in case of carotid injury. After removing the foreign body, a CSF fistula occurred and was repaired. Patient recovered adequately, without neurological deficit, without postoperative CSF fistula, without CNS infection or oculomotor alteration.

Identifying missing people in the National Database of Genetic Profiles for Application in Judicial Investigation ­CODIS­: Two case reports / Identificación de personas desaparecidas mediante la búsqueda en CODIS: reporte de dos casos

Armed conflict in Colombia has played an important role in the missing people phenomenon, in which the Government has the duty to identify, recover and investigate the crime in the process of the victims' reparation. However, identifying missing people is a complex process because of the huge amount of time it consumes and the lack of information regarding the identity of the missing people, which is the norm in most of the cases. In such cases in which there is little information on the identity of missing people (including data of their relatives), DNA analysis and databases are of key importance in the identification process. This is why we present two cases that exemplify the role of DNA databases in the successful identification of missing people.

En el marco del conflicto armado que se ha presentado durante los últimos años en el territorio colombiano, el Estado ha llevado a cabo la labor de investigar, recuperar e identificar los cuerpos de personas desaparecidas en el proceso de reparación a las víctimas. La identificación de personas fallecidas y desaparecidas en la mayoría de los casos es un proceso largo y complejo, en el que es frecuente contar con muy escasa información sobre la posible identidad del individuo y sin ninguna información sobre los familiares. Es aquí donde el análisis de ADN y las bases de datos relacionadas juegan un papel importante en este proceso. Se presentan dos casos en los que se logra la identificación de dos individuos previamente reportados en condición de no identificados (individuos CNI); esto se da años después mediante la búsqueda y comparación de perfiles genéticos en la Base Nacional de Perfiles Genéticos de Aplicación en Investigación Judicial CODIS (Combined DNA Index System por sus siglas en inglés) y haciendo una ampliación del análisis genético en ambos casos para su confirmación.