Platonia insignis, a native tree from the Amazon, has a high market demand due to its various uses, such as producing pulps and ice creams from its fruit and furniture from its wood. This review aims to systematize the scientific knowledge about the species and explore the potential of biotechnology to elucidate its growth, development, and fruiting mechanisms. Databases such as the Web of Science, Scopus, the Brazilian Agricultural Research Database, and PubMed were consulted using keywords like “P. insignis”, “bacuri”, and “bacurizeiro”. Of the 67 selected articles, it was observed that rigorous research on P. insignis is limited. Current management is based on empirical observations, but biotechnology could expedite the domestication process. Additionally, studying medicinal compounds from P. insignis could open new economic opportunities, encourage germplasm conservation, and drive genetic breeding.

Salicylic acid (SA) is a bioregulator well-known for mitigating salinity damage in plants. However, no studies have examined the interaction between SA and salinity in Dizygostemon riparius, a species rich in bioactive molecules. Therefore, we aimed to evaluate the effect of SA application on Dizygostemon riparius under different salinity levels. A completely randomized experiment was conducted in a 2 × 3 factorial design (two SA concentrations of 0 and 100 µM and three salinity concentrations of 0, 200, and 400 mM NaCl) with five replicates. At 400 mM NaCl, leaf temperature increased by 11%, while relative water content and total soluble carbohydrates decreased by 30% and 35%, respectively, leading to reduced biomass accumulation. Notably, the SA application mitigated these effects by restoring relative water content under 400 mM NaCl and improving carboxylation efficiency and intrinsic water-use efficiency under 200 mM NaCl. Additionally, dry biomass was maintained under both 200 and 400 mM NaCl with SA treatment. These findings suggest that SA has a promising potential to alleviate salt stress in Dizygostemon riparius. Our results could inform cultivation practices, opening new perspectives on the use of SA as an attenuator of salinity stress.

Dizygostemon riparius is an endemic tropical Brazilian species whose physiological responses to salinity are poorly understood. This study evaluated the effects of NaCl (0, 50, and 100 mM) on in vitro-grown D. riparius by integrating growth, anatomical, photosynthetic, and biochemical analyses. Salinity significantly reduced biomass and growth parameters, indicating impaired development. Photosystem II efficiency declined, as evidenced by decreases in the performance index and chlorophyll content, while anatomical changes such as epidermal thickening and reduced vascular bundles reflected structural adjustments under stress. At the biochemical level, salinity altered polyamine metabolism, with reductions in total free polyamines, suggesting potential limitations in defense mechanisms. Hyperhydricity observed under high salinity indicated a non-adaptive response. Overall, D. riparius displayed limited tolerance to salt stress, with physiological and biochemical impairments outweighing structural plasticity. This study provides the first data-driven characterization of salinity effects in this species and highlights the value of in vitro culture as a tool to investigate stress responses.

Plant tissue culture offers a controlled platform for biodiversity conservation, clonal propagation, and the production of bioactive compounds; however, the exclusion of natural microbial partners limits morphogenesis, aerial and root system development, and acclimatization success. Biotization with Plant Growth-Promoting Microorganisms (PGPMs) has emerged as a strategy to re-establish functional plant-microbe interactions disrupted by axenization. This review compiles advances on PGPMs in plant tissue culture, emphasizing their roles in regeneration, secondary metabolism, and acclimatization, while identifying prospects for applied biotechnology. PGPMs influence phytohormone profiles, nutrient acquisition, and defense pathways, thereby improving rhizogenesis, shoot morphogenesis, and acclimatization performance. Molecular evidence indicates that PGPMs modulate hormonal signaling and nutrient assimilation pathways, providing a mechanistic basis for these beneficial effects. Studies demonstrate that endophytic bacteria, rhizobacteria, actinomycetes, and mycorrhizal fungi can enhance regeneration efficiency and promote stress tolerance in vitro. Despite these advances, the specificity of microbial strains, colonization dynamics, and long-term stability of plant-microbe associations remain poorly resolved. Standardized inoculation protocols combined with integrative multi-omics approaches will enable the rational design of host-specific microbial consortia and accelerate the translation of PGPM-based biotization into reproducible and scalable micropropagation systems.