PLASTID ULTRASTRUCTURE IN THE BARREL CACTUS, ECHINOCACTUS ACANTHODES
نویسندگان
چکیده
منابع مشابه
Plastid ultrastructure defines the protein import pathway in dinoflagellates.
Eukaryotic cells contain a variety of different compartments that are distinguished by their own particular function and characteristic set of proteins. Protein targeting mechanisms to organelles have an additional layer of complexity in algae, where plastids may be surrounded by three or four membranes instead of two as in higher plants. The mechanism of protein import into dinoflagellates pla...
متن کاملPhotosynthetic pigments, photosynthesis and plastid ultrastructure in RbcS antisense DNA mutants of tobacco (Nicotiana tabacum).
RbcS antisense DNA mutants of tobacco have reduced amounts of ribulose bisphosphate carboxylase oxygenase (Rubisco). We found that carotenoid and chlorophyll contents decrease in parallel as Rubisco is decreased, however, pigment levels are not significantly altered until Rubisco levels are reduced sharply. The mutants have normal Chl a/Chl b ratios and normal plastid ultrastructures, suggestin...
متن کاملExceptional reduction of the plastid genome of saguaro cactus (Carnegiea gigantea): Loss of the ndh gene suite and inverted repeat.
UNLABELLED • PREMISE OF THE STUDY Land-plant plastid genomes have only rarely undergone significant changes in gene content and order. Thus, discovery of additional examples adds power to tests for causes of such genome-scale structural changes.• METHODS Using next-generation sequence data, we assembled the plastid genome of saguaro cactus and probed the nuclear genome for transferred plast...
متن کاملEffect of Fluridone on Plant Development, Leaf Anatomy and Plastid Ultrastructure of Barley Plants
The effect of fluridone on leaf anatomy and plastid ultrastructure was studied in barley plants grown under light and dark conditions. The appearance of defective mesophyll cells and chloroplasts with a destroyed thylakoid membrane system was found in fluridone-treated plants grown at a photosynthetic photon flux (PPF) of 600 μmol.m–2.s–1. Treatment of barley plants with fluridone in the absenc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Phytologist
سال: 1973
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1973.tb02054.x