Aims:The present study was carried out to design a phosphate solubilizing bacterial (PSB)-based biofertilizer using locally produced fruit waste. Method and results:Two PSB strains Pseudomonas aeruginosa CMG4 and AAC1 were inoculated into compost. Six compost piles were prepared with carbon:nitrogen (C:N) ratio 30:1. Four piles were inoculated with PSB and two piles served as a control. After 125 days, composts were considered mature at 29-31°C in the pH range of 7.1-7.3 and 32%-35% moisture content (MC). Accessible calcium (Ca) content increased up to 50 g kg −1 . Microbial analysis showed the survival of P. aeruginosa species in the maturing compost even at higher temperature (~53°C). Native bacterial load was retrieved in the range of 10 9 -10 11 CFUg −1 . Heavy metal concentrations including copper (Cu), lead (Pb), chromium (Cr) and cadmium (Cd) were found to occur below critical thresholds. Seed germination index for compost toxicity was found to be >80%, significantly higher than animal manure and chemical fertilizer, that is, 78% and 31%, respectively, suggesting non-toxicity. Conclusions:The evaluation of prepared compost by physicochemical parameters revealed that inoculation of P. aeruginosa does not affect the temperature, MC, carbon to nitrogen ratio, organic matter and Mg content but significantly increased the accessible Ca content, suggesting the solubilization of inorganic Ca bound phosphate. Compost was safe in terms of heavy metal concentration and seed germination. Significance and impact of study:This study encourages that the PSB-rich tailored compost can be utilized as a phosphatic biofertilizer to fulfil the demand for phosphorus which would improve and sustain soil fertility.
Iron deficiency anemia is a common clinical concern in women of reproductive age. It presents as microcytic anemia and can be due to a limited number of causes including bleeding, malabsorption, intravascular hemolysis, or a mechanical heart valve. Familial adenomatous polyposis (FAP) is an inherited autosomal dominant disorder due to mutation in the adenomatous polyposis coli ( APC ) gene that can cause iron deficiency anemia due to GI malignancy, most notably colon cancer. Variation of mutations within the APC gene can cause different forms of FAP, such as Gardner syndrome. This syndrome presents with epidermoid cysts typically in unconventional locations such as the face, scalp, and extremities, as seen in our patient. We report a presentation of FAP in a 33-year-old Caucasian female who initially presented with iron deficiency anemia, hematochezia, and weight loss. Colonoscopy revealed hundreds of polyps within the colon, with two that were biopsied and reported as tubulovillous adenoma. The patient underwent a robotically assisted laparoscopic total proctocolectomy with ileal pouch-anal anastomosis, as well as a diverting loop ileostomy, and was given pain medication. She was referred to genetic counseling for her daughters and herself, which revealed a pathogenic variance in the APC gene.
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