Plant Organ Sensitivity to Water Stress: The Case of Roma Tomato (Solanum Lycopersicum)

Ambrose O Anoruo*, Shad D Nelson, Blessing N Nsofor, Benjamin L Turner and Paul W Holland

The Ferry Morse heirloom seeds of the Roma tomato variety were germinated in the greenhouse at Texas A&M University, Kingsville, TX. The seedlings were used to study the effects of water stress or deficit irrigation (DI) on organ cell wall and lumen development in Solanum lycopersicum. The seedlings were pre-acclimated to four DI treatments of 100% (control), 75%, 50%, and 25% in a randomized complete block experiment and grown until flowering occurred. The seedlings were watered only when the control needed watering, and the amount of water used on the treatments was a fraction of the quantity required to saturate the control treatment pots. The results indicate that DI impacted plant organ cell wall and lumen development but had no effect on the stem lumen. A pooled data analysis of the organ measurements to understand the effect of DI on the species anatomical structures indicates that DI had an effect on cell wall development of the whole plant, but no effect on the lumen of the species.

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Published on: Jan 28, 2026 Pages: 1-4

Full Text PDF Full Text HTML DOI: 10.17352/ojps.000066
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