Pigmentation and carotenoid content of the wild type and al-2 mutants.

aWild type: Oak Ridge 74-OR23-1A.#indicates FGSC numbers for al-2 mutants.bAppearance on agar slants under light at room temperature.cAverage and standard deviation from at least two determinations.dMajor carotenoid in parentheses (see Fig. 3); (Nx): neurosporaxanthin; (La): apo-4′-lycopenoic acid; (Nx/La) spectrum data consistent with a mixture of neurosporaxanthin and apo-4′-lycopenoic acid; (*): spectrum data consistent with diapolycopene; (**): not determined.