Pyrenoids are sub-cellular phase-separated micro-compartments found in chloroplasts of many algae, and in a single group of land plants, the hornworts...

autospores. Each cell contains a single chloroplast, a variable number of pyrenoids (including lack thereof), and from one to hundreds of flagella without...

and traditionally has been distinguished mainly through the absence of a pyrenoid. Species of Chloromonas occupy a variety of habitats, including soil, temporary...

Starch can also accumulate around the pyrenoids when CO2 is scarce. Pyrenoids can divide to form new pyrenoids, or be produced "de novo". Thylakoids (sometimes...

green chloroplast, their four-flagellate cell bodies, the presence of a pyrenoid within the chloroplast, and a scale-produced thecal-wall. Species within...

of the monoplastidic species, a cellular structure called a pyrenoid is absent. The pyrenoid is a liquid-like organelle which enables a more efficient photosynthesis...

of RuBisCO is densely packed into a single subcellular compartment: the pyrenoid. Carbon dioxide is concentrated in this compartment using a combination...

and compressed. Cells contain a cup-shaped chloroplast with one or more pyrenoids and usually an stigma. Two contractile vacuoles are present at the base...

nucleus, a single parietal chloroplast and a single pyrenoid lacking a starch sheath (or no pyrenoid at all). Reproduction occurs asexually by autospores...

conspicuous basal pyrenoid surrounded by a starch sheath. The stigma is small, reddish and situated at the base of the cell near the pyrenoid. Cells contain...

worldwide. The species name pyrenoidosa refers to the presence of a prominent pyrenoid within the Chlorella chloroplast. Auxenochlorella pyrenoidosa has been...

by the lack of a pyrenoid in the chloroplast. This characteristic is unclear as some sources list Didymocystis as having pyrenoids, but some species...

lateral or basal chloroplast and an indistinct basal pyrenoid or pyrenoid-like body; the pyrenoid may not be visible in young cells or cultures. Reproduction...

unequal flagella, a minimum of one chloroplast with three membranes and pyrenoids penetrated by stacks of thylakoids, a robust stigma, a paraflagellar swelling...

and multiple plates if diplomorphic". The nucleomorphs are never in the pyrenoid, and there is never a scalariform furrow. The cells do, however, have a...

base, an eyespot, and a large cup-shaped chloroplast with at least one pyrenoid. The colonies co-ordinate their flagellar movement to create a rolling...

presence of pyrenoids is used as an identifying feature of the genus, separating it from other euglenoids, such as Lepocinclis and Phacus. Pyrenoids may be...

fully circles the cell's circumference. The chloroplast contains a single pyrenoid which is surrounded by a starch envelope. Cells are uninucleate. Older...

mucilage. Cells contain a single cup-shaped, parietal chloroplast with one pyrenoid. Chlorococcum reproduces by the formation of autospores or zoospores. The...

red) Thylakoids, site of the light-dependent reactions of photosynthesis Pyrenoid, center of carbon fixation Trichocyst Alveolus, surface cavity or pit Thecal...

be stored as starch granules and paramylon. Paramylon is made in the pyrenoids of Euglena. The euglenoids have chlorophylls a and b and they store their...

Cells are cylindrical, with a parietal, plate-like chloroplast without pyrenoids or starch. The nucleus is located in the median constriction of the chloroplast...

the cell. Pyrenoids are normally present, but in some conditions (such as in photoheterotrophic medium), some species do not produce pyrenoids. At the center...

wall at the distal ends of the raphe Frustule; hard and porous cell wall Pyrenoid; center of carbon fixation Plastid membranes (4, secondary red) Inner membranes...

hydroxyproline-rich glycoproteins, a large cup-shaped chloroplast, a large pyrenoid, and an eyespot apparatus that senses light. Chlamydomonas species are...

reticulate, cup-shaped, spiral, or ribbon shaped. They have one or more pyrenoids to preserve protein and starch. The latter chlorophyll type is not known...

Oedogonium). In many species, there may be one or more storage bodies called pyrenoids (central proteinaceous body covered with a starch sheath) that are localised...

this genus is characterized by its unique lobed chloroplast that lacks a pyrenoid, differentiating it from other unicellular red algae. It has drawn interest...

single chloroplast is present, filling nearly the entire cell; it lacks a pyrenoid. It is commonly used as a bioindicator species to assess the levels of...

accumulate within the cell from where they diffuse into the carboxysomes. Pyrenoids in algae and hornworts also act to concentrate CO2 around RuBisCO. The...