Genomics analysis of three phosphorus-dissolving bacteria isolated from Torreya grandis soil

With the increasingly serious problem of phosphorus deficiency in the subtropical zone, chemical fertilizers are widely used. But it pollutes the environment. Phosphorus-solubilizing microorganisms (PSMs) are referred to as a new solution to this problem. We explored the phosphorus-dissolving characteristics of PSB strains isolated from the rhizosphere soil of Torreya grandis to provide a theoretical basis for selecting the strain for managing phosphorus deficiency in subtropical soils and also provides a more sufficient theoretical basis for the utilization of PSMs. From 84 strains, three strains exhibiting high phosphorus solubility and strong IAA producing capacity were selected through a series of experiments. The phosphate-solubilizing capacity of the three selected strains W1, W74, and W83 were 339.78 mg/L, 332.57 mg/L, and 358.61 mg/L, respectively. Furthermore, W1 showed the strongest IAA secreting capacity of 8.62 mg/L, followed by W74 (7.58 mg/L), and W83 (7.59 mg/L). Determination by metabolites, it was observed that these three strains dissolved phosphorus by secreting a large amount of lactic acid, aromatic acid, and succinic acid. The genome of these PSBs were sequenced and annotated in this study. Our results revealed that PSB primarily promotes their metabolic pathway, especially carbon metabolism, to secrete plenty organic acids for dissolving insoluble phosphorus. (AU)

Enfermedad de Mikulicz. A propósito de un caso / Mikulicz's disease. A case report

CASO CLÍNICO: Se presenta el caso de un paciente de 48 años con afectación bilateral de las glándulas lacrimales y salivales que fue diagnosticado de enfermedad de Mikulicz mediante biopsia incisional de las glándulas lacrimales afectadas, presentando resolución completa del cuadro tras tratamiento corticoideo. DISCUSIÓN: La sialadenitis y/o dacrioadenitis esclerosante son enfermedades inflamatorias crónicas que, en la actualidad, se clasifican dentro de las enfermedades asociadas a IgG4. En concreto, la enfermedad de Mikulicz se define por agrandamiento persistente, bilateral y simétrico de las glándulas lacrimales y salivales junto a unas concentraciones elevadas de IgG4 sérica e infiltración tisular importante por células plasmáticas IgG4(+)

CASE REPORT: We report the case of a 48 year-old male with bilateral involvement of the salivary and lacrimal glands, which was diagnosed as Mikulicz's disease by incisional biopsy of the affected lacrimal glands, which was completely resolved after corticosteroid treatment. DISCUSSION: Sclerosing sialadenitis and/or dacryoadenitis are chronic inflammatory diseases that are currently classified into IgG4-related diseases. Specifically, Mikulicz's disease is defined by a persistent and symmetrical swelling of the lacrimal and salivary glands together with elevated serum concentration of IgG4 and tissue infiltration by IgG4 (+) plasma cells

Enfermedades autoinmunes y autoinmunidad fisiológica: el reconocimiento de la propia identidad / Autoinmune diseases and physiological autoinmunity: recognition of its own

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