Details

Autor(en) / Beteiligte

• Reiter, Robert S.
• Coomber, Shirley A.
• Bourett, Timothy M.
• Bartley, Glenn E.
• Scolnik, Pablo A.

Titel

Control of Leaf and Chloroplast Development by the Arabidopsis Gene pale cress

Ist Teil von

• The Plant cell, 1994-09, Vol.6 (9), p.1253-1264

Ort / Verlag

United States: American Society of Plant Physiologists

Erscheinungsjahr

1994

Link zum Volltext

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Leaf plastids of the Arabidopsis pale cress (pac) mutant do not develop beyond the initial stages of differentiation from proplastids or etioplasts and contain only low levels of chlorophylls and carotenoids. Early in development, the epidermis and mesophyll of pac leaves resemble those of wild-type plants. In later stages, mutant leaves have enlarged intercellular spaces, and the palisade layer of the mesophyll can no longer be distinguished. To study the molecular basis of this phenotype, we cloned PAC and determined that this gene is regulated by light and has the capacity to encode an acidic, predominantly α-helical protein. The PAC gene appears to be a novel component of a light-induced regulatory network that controls the development of leaves and chloroplasts.