Figure 6.

PHB accumulation during fiber development. (A) PHB accumulation in relation to fiber weight during development. PHB levels were determined from 10, 15, 20, and 50 DPA fibers of no. 7148. The increase in fiber weight per boll is also shown. The weight of PHB as a function of fiber weight decreased during fiber maturation due to increased fiber weight and not due to degradation of PHB. (B) PHB level in developing bolls. The total weight of PHB per boll during development is shown. The results show that PHB level does not decrease significantly during fiber maturation.