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VOL. 11, ISSUE 2 (2026)
Comparative phytochemical profiling of healthy and stem-spotted diseased stems of Solanum lycopersicum: Insights into primary and secondary metabolite alterations
Authors
Anita Choudhary, Himanshu Sisodia, Rishikesh Meena
Abstract
Biochemical responses in plants are strongly
influenced by pathological stress, often resulting in measurable changes in
metabolite composition. The present study examines the phytochemical
differences between healthy and stem-spotted diseased stems of Solanum
lycopersicum. Stem samples were collected from field-grown plants and
subjected to methanolic extraction using a controlled sonication process
(25-40°C, 40-45 minutes). Qualitative screening revealed the presence of
alkaloids, carbohydrates, flavonoids, and carboxylic acids in both healthy and
diseased tissues, while tannins were detected only in diseased stems. A
semi-quantitative interpretation based on visible intensity differences
suggested a relative decline in carbohydrate levels and an increase in
defense-related compounds under diseased conditions. These observations
indicate a shift from primary metabolism towards secondary metabolite synthesis
during stress. The findings contribute to understanding biochemical adaptation
in plant tissues and support the potential of tomato stems as a source of
bioactive compounds.
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Pages:171-174
How to cite this article:
Anita Choudhary, Himanshu Sisodia, Rishikesh Meena "Comparative phytochemical profiling of healthy and stem-spotted diseased stems of <i>Solanum lycopersicum</i>: Insights into primary and secondary metabolite alterations". International Journal of Botany Studies, Vol 11, Issue 2, 2026, Pages 171-174
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