Native architecture of the Chlamydomonas chloroplast revealed …
2015年1月13日 · Chlamydomonas cells are ∼10 μm in diameter, and about half of their volume is occupied by a single cup-shaped chloroplast (Sager and Palade, 1957; Gaffal et al., 1995). Different regions of the algal chloroplast are associated with specific functions. Carbon fixation is carried out in the pyrenoid at the base of the chloroplast cup.
The Natural History of Model Organisms: From molecular ... - eLife
2018年11月1日 · A single cup-shaped chloroplast occupies a large proportion of the cell's volume. This organelle houses the machinery for oxygenic photosynthesis and contains the pyrenoid, a structure in which Rubisco is concentrated; the pyrenoid is a component of the carbon concentrating mechanism (CCM) which functions to concentrate inorganic carbon in the ...
Chloroplasts with clefts and holes: a reassessment of the chloroplast …
2024年9月23日 · The chloroplast of Chlamydomonas has been typically described as cup-shaped. However, in old studies, it was also modeled as a complex shape with “perforations” or windows. Here, we reconstructed the cellular architecture of Chlamydomonas reinhardtii and C. applanata using an array tomography system installed on a field emission scanning ...
Chloroplast Structure - ScienceDirect
Chloroplast shape is highly variable, especially in the algae, where it may exist in cup-shaped, spiral, or star-shaped forms. In bryophytes and higher plants, the chloroplast is more generally saucer shaped 5–10 μ in diameter, and several microns thick.
Chlamydomonas reinhardtii - Wikipedia
Chlamydomonas reinhardtii is a single-cell green alga about 10 micrometres in diameter that swims with two flagella. It has a cell wall made of hydroxyproline -rich glycoproteins, a large cup-shaped chloroplast, a large pyrenoid, and an eyespot apparatus that senses light.
The internal plumbing of algal chloroplasts - PMC - National …
2015年1月13日 · Each Chlamydomonas cell has a single, cup-shaped chloroplast. An enzyme called Rubisco catalyzes the crucial first step in carbon fixation and is found in all photosynthetic organisms.
A typical cup shaped chloroplast (asterisks) from a lightgrown ...
Download scientific diagram | A typical cup shaped chloroplast (asterisks) from a lightgrown Chlamydomonas reinhardtii (Chlorophyta) cell. Please note the central pyrenoid (P) with traversing ...
Photosynthesis: The internal plumbing of algal chloroplasts
2015年1月13日 · Each Chlamydomonas cell has a single, cup-shaped chloroplast. An enzyme called Rubisco catalyzes the crucial first step in carbon fixation and is found in all photosynthetic organisms.
Structure and development of the chloroplast in Chlamydomonas …
The chloroplast, a cup-shaped organelle, surrounded by a double membrane, consists of: (1) discs about 1 micron in diameter, considered to represent the basic structural unit of the chloroplast, and each composed of a pair of membranes joined at their ends to form a flat closed vesicle; the discs are grouped into stacks resembling the grana of ...
Ultrastructural organization of the thylakoid system during the ...
2023年8月23日 · In deep-shade species, such as S. martensii, the chloroplast is cup-shaped and the thylakoid system differentiates into an upper lamellar region and a lower granal region (bizonoplast). In this report, we describe the ultrastructural changes occurring in the giant chloroplast hosted in the epidermal cells of S. martensii during the daily ...