Euterpe oleracea Mart., also known for its fruit açaí, is a palm native to the Amazon region. The state of Pará, Brazil, accounts for over 90% of açaí production. Demand for the fruit in national and international markets is increasing; however, climate change and diseases such as anthracnose, caused by the fungus Colletotrichum sp., lead to decreased production. To meet demand, measures such as expanding cultivation in upland areas are often adopted, requiring substantial economic investments, particularly in irrigation. Therefore, the aim of this study was to evaluate the potential of açaí rhizobacteria in promoting plant growth (PGPR). Rhizospheric soil samples from floodplain and upland açaí plantations were collected during rainy and dry seasons. Bacterial strains were isolated using the serial dilution method, and subsequent assays evaluated their ability to promote plant growth. Soil analyses indicated that the sampling period influenced the physicochemical properties of both areas, with increases observed during winter for most soil components like organic matter and C/N ratio. A total of 177 bacterial strains were isolated from rhizospheres of açaí trees cultivated in floodplain and upland areas across dry and rainy seasons. Among these strains, 24% produced IAA, 18% synthesized ACC deaminase, 11% mineralized organic phosphate, and 9% solubilized inorganic phosphate, among other characteristics. Interestingly, 88% inhibited the growth of phytopathogenic fungi of the genera Curvularia and Colletotrichum. Analysis under simulated water stress using Polyethylene Glycol 6000 revealed that 23% of the strains exhibited tolerance. Two strains were identified as Bacillus proteolyticus (PP218346) and Priestia aryabhattai (PP218347). Inoculation with these strains increased the speed and percentage of açaí seed germination. When inoculated in consortium, 85% of seeds germinated under severe stress, compared to only 10% in the control treatment. Therefore, these bacteria show potential for use as biofertilizers, enhancing the initial development of açaí plants and contributing to sustainable agricultural practices.

This research aims to investigate the use of plants in genitourinary health care by riverine women in Cametá-PA, to understand if and how the local biodiversity can contribute to women's health care. Semi-structured questionnaires and non-directive interviews were applied with 32 women living on the island of Cuxipiari Furo Grande. The data were systematized and an analysis of the Corrected Agreement Index (CUPc) of the identified species was performed. The results suggest that the most important plants for the treatment of genitourinary disorders are Dalbergia monetaria L. f, Pachira aquatica Aublet, Anacardium occidentale and Caesalpinia ferrea Mart, mainly indicated for urinary tract infections. The stem bark of these species is used to prepare sitz baths and therapeutic teas. Although conventional medicine is currently more accessible in the floodplain, most women prioritize the medicinal use of products from nature, indicating the importance of traditional knowledge and local biodiversity for women's health care in the region. It is concluded that women still maintain a complex system of knowledge about the flora of the floodplain and that the availability of these natural resources is essential for the keeping of this system of knowledge and for the treatment of women's health.