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<p>Sugarcane and pineapple are vital crops with significant economic contributions to agriculture, necessitating enhancements in their genetic traits to improve sustainability and profitability. Sodium azide mutagenesis serves as a valuable tool in plant breeding and genetic studies, offering opportunities to explore induced physiological responses for safer and more effective applications. This study examines the effects of four sodium azide concentrations (0, 0.15, 0.30, and 0.45&#xa0;mM) on sugarcane and pineapple cultivated in temporary immersion bioreactors (TIBs), employing principal component analysis (PCA) for detailed trait evaluation. PCA, a robust statistical method, identified malondialdehyde, chlorophyll b, and cell wall–linked phenolics as key indicators contributing to variance explanation. Comparing the findings, sugarcane results underscore a trade-off between stress markers (malondialdehyde, carotenoids, and soluble phenolics) and growth traits (fresh shoot mass), revealing the impact of stress responses on biomass. Meanwhile, pineapple outcomes emphasize a trade-off between photosynthetic pigments (chlorophyll a, chlorophyll b, carotenoids) and growth traits (shoot multiplication rate and fresh shoot mass), highlighting a shift toward photosynthetic efficiency over vegetative propagation. These contrasting principal components reflect how sugarcane adapts to stress while pineapple optimizes photosynthesis under varying conditions. Together, the analyses showcase how different species prioritize physiological traits based on their unique developmental or environmental demands, offering insights into tailored approaches for crop improvement and genetic research. This integrated study contributes valuable knowledge for advancing agricultural sustainability and productivity in these economically essential crops.</p>

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Principal component analysis showed that sodium azide primarily affects malondialdehyde, chlorophyll b, and cell wall–linked phenolics in sugarcane and pineapple grown in temporary immersion bioreactors

  • 期刊论文

  • 发表日期：

    2025年5月15日

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  • Julio César Quintana-Zaez,
  • Alberto Lozada,
  • Daviel Gómez,
  • Yanier Acosta,
  • Barbarita Companioni,
  • Byron E. Zevallos–Bravo,
  • María de Lourdes Tapia y Figueroa,
  • José Carlos Lorenzo

摘要

Sugarcane and pineapple are vital crops with significant economic contributions to agriculture, necessitating enhancements in their genetic traits to improve sustainability and profitability. Sodium azide mutagenesis serves as a valuable tool in plant breeding and genetic studies, offering opportunities to explore induced physiological responses for safer and more effective applications. This study examines the effects of four sodium azide concentrations (0, 0.15, 0.30, and 0.45 mM) on sugarcane and pineapple cultivated in temporary immersion bioreactors (TIBs), employing principal component analysis (PCA) for detailed trait evaluation. PCA, a robust statistical method, identified malondialdehyde, chlorophyll b, and cell wall–linked phenolics as key indicators contributing to variance explanation. Comparing the findings, sugarcane results underscore a trade-off between stress markers (malondialdehyde, carotenoids, and soluble phenolics) and growth traits (fresh shoot mass), revealing the impact of stress responses on biomass. Meanwhile, pineapple outcomes emphasize a trade-off between photosynthetic pigments (chlorophyll a, chlorophyll b, carotenoids) and growth traits (shoot multiplication rate and fresh shoot mass), highlighting a shift toward photosynthetic efficiency over vegetative propagation. These contrasting principal components reflect how sugarcane adapts to stress while pineapple optimizes photosynthesis under varying conditions. Together, the analyses showcase how different species prioritize physiological traits based on their unique developmental or environmental demands, offering insights into tailored approaches for crop improvement and genetic research. This integrated study contributes valuable knowledge for advancing agricultural sustainability and productivity in these economically essential crops.