FIGURE 7.

Qualitative and quantitative representation of carbon transport from source to sink tissues. Picture (A) and autoradiogram (B) of 7-day-old eggplants (cv. Pusa Purple Long) labeled with ¹⁴CO₂. Plants were labeled for 30 min in an airtight chamber followed by a chase period of 2 h in air. Dried plant material was exposed to the film for 7 days. (C) Infective M. incognita J2s latching on to the root tip of a labeled plant at 8 h post inoculation. One hundred J2s were inoculated behind the root tip in pluronic gel medium. (D) Relative ¹⁴C assimilation in shoot, root, and penetrating J2. The sum of the label is set to 100%. Mean ± SE (n = 12). Liquid scintillation counts (as dpm) of unlabelled plant material and freshly hatched J2s were used as the control.