A thin layer resembling a white callus was formed on the stem of a tomato plant transplanted from rooting food to soil. Is this dangerous for plant growth? No such situation was observed in the control plant.
No, the white callus-like layer on the stem of a new transgenic tomato plant is typically not harmful to the plant itself. The formation of a callus-like layer on the stem of a transgenic tomato plant is a normal response to the tissue culture process used to generate the transgenic plant. This callus-like layer is not harmful to the plant, but rather a sign that the transformation process was successful and that the plant has ability to regenerate from the genetically modified cells. Once the transgenic plant is regenerated from the callus, the callus-like layer may remain visible on the stem as a white or off-white tissue. this tissue is not determined to the plant's growth or development, as long as it does not interfere with the vascular system or significantly restrict the stem's ability to expand as the plant grows.
Is this callus? They look like hairs on the stem which is a common trait in normal tomato plants. If hairs, no worries