Explore recent research papers collected from PubMed.
This study investigates suberin biosynthesis in potato (*Solanum tuberosum*) tubers by generating RNAi knockdown lines for three wound-induced peroxidase genes (*PRX19*, *PRX55*, and *PRX105*). Silencing *PRX19* severely impaired poly(phenolic) and poly(aliphatic) domain deposition, resulting in an absence of lamellae, increased water loss, and heightened susceptibility to bacterial soft rot. These findings confirm that poly(phenolic) domain assembly is required for proper aliphatic lamella formation in functional wound-induced potato suberin.
This study analyzed the leaf epiphytic and endophytic bacterial communities of four potato cultivars across commercial farms in Australia. The researchers found that community composition is driven by both cultivar and site, identifying key core taxa such as a *Delftia* sp. that acted as a putative keystone taxon across multiple cultivars. These findings highlight the presence of a shared core microbiome in potato leaves that could benefit plant health.
This study evaluated the effects of varying potassium fertilizer rates on potato yield and the expression of the candidate potassium uptake gene CIPK8 across two growing seasons. A potassium application of 240 kg·hm⁻² maximized both tuber yield and CIPK8 transcript and protein levels during the tuber bulking stage. Subcellular localization confirmed CIPK8 presence in the nucleus, cytoplasm, and membrane, identifying it as a promising candidate for improving potassium use efficiency in potato.
This study investigates the transcriptional programs and environmental signals (nutrition, humidity, and light) that regulate sporulation in the potato blight pathogen, Phytophthora infestans. The researchers identified over 4,000 genes upregulated during sporangia formation and found that sporulation is triggered by nitrogen limitation, regulated at a late checkpoint by humidity, and delayed by light via a cryptochrome-mediated pathway.
This study investigates the development of high-performance composite hydrogels using potato protein amyloid fibrils combined with carboxymethyl chitosan and divalent ions (Zn2+ or Mg2+). The results demonstrate that controlled fibrillation and divalent ion crosslinking significantly improve the structural stability, viscoelasticity, and gel properties of potato protein, offering a strategy for its value-added utilization.
This study investigates the wound-healing process and suberin deposition in potato tuber skins across multiple cultivars using a holistic approach combining solid-state NMR, metabolite profiling, and chemical breakdown analyses. The findings reveal novel structural and chemical components within the suberized cell wall that enhance our understanding of how potato tubers protect themselves against environmental threats.
This study characterizes the multi-scale structure, physicochemical properties, and digestibility of chayote tuber starch using potato starch as a reference point for comparison. It highlights differences in amylose content, crystallinity, pasting properties, and in vitro digestibility between the two tuber starches.
This study evaluated the single-season effects of combining chemical fertilizers with various organic materials (sheep manure, biochar, and corn stover) on potato rhizosphere fungal community structure and crop yield. The results demonstrated that biochar combined with chemical fertilizer performed best in enhancing both potato yield and soil fungal diversity, with soil total nitrogen identified as a primary environmental driver shaping the fungal community.
This study investigates the impact of ultrahigh magnetic field (UMF) processing on the complexation of B-type potato starch and A-type wheat starch with saturated and unsaturated fatty acids. The findings demonstrate that UMF pretreatment significantly enhances the complexing ability, thermal stability, and relative crystallinity of potato starch-fatty acid complexes, particularly with palmitic acid. Overall, the research provides a theoretical foundation for using UMF technology in potato starch modification and food engineering.
This study evaluated the efficacy of single- and cross-kingdom synthetic microbial communities (SynComs) in alleviating continuous cropping obstacles in potato. The bacteria-fungal mixed consortium (SBF) demonstrated the strongest growth-promoting effects, significantly enhancing plant height, root length, stem diameter, and overall biomass. The findings show that cross-kingdom SynComs effectively restructure the rhizosphere microbiota to improve potato productivity under continuous cropping conditions.