Transcripts of trm1 (A) in maize leaves
and (B) MC and BSC increase in abundance upon
illumination of dark-grown seedlings. Northern blots.
(A) Transcripts of trm1 in leaf extracts.
Conditions for plant growth, harvest, and RNA extraction are described
in Materials and Methods. E = etiolated. 6, 12, 24,
36, 48 = number of hours in light. FG = fully green.
(B) Cell-specific levels of TRM1 mRNA. E =
etiolated, L = 6 h in light, M = MC, B = BSC.