Cellulose-synthesizing complexes in some chromophyte algae

Okuda, K; Sekida, Satoko; Yoshinaga, Shingo; Suetomo, Yasutaka

doi:10.1023/b:cell.0000046407.22865.03

Cited by 19 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…) and other photosynthetic stramenopiles (Okuda et al. ), at least some alveolate dinoflagellates (Okuda and Sekida ) and streptophyte algae (Hotchkiss and Brown , Okuda and Brown ), consistent with the production of celluloses by these groups.…”

Section: Discussionmentioning

confidence: 68%

“…Plasma membrane-bound CSCs have been demonstrated by microscopic analyses to occur in diverse algal lineages, including Cyanobacteria (Zaar 1979), Glaucophyta (Willison and Brown 1978), Rhodophyta (Tsekos andReiss 1992, Tsekos et al 1999), Chlorophyta Montezinos 1976, Itoh 1990), Phaeophyta (Katsaros et al 1996) and other photosynthetic stramenopiles (Okuda et al 2004), at least some alveolate dinoflagellates (Okuda and Sekida 2007) and streptophyte algae (Hotchkiss andBrown 1987, Okuda andBrown 1992), consistent with the production of celluloses by these groups.…”

Section: Cazymes Of Pyramimonas Parkeaementioning

confidence: 99%

See 1 more Smart Citation

Genome‐wide analysis of carbohydrate‐active enzymes in Pyramimonas parkeae (Prasinophyceae)

Satjarak

Graham

2017

Journal of Phycology

View full text Add to dashboard Cite

The wall-less green flagellate Pyramimonas parkeae is classified in clade I of the prasinophytes, a paraphyletic assemblage representing the last common ancestor of Viridiplantae, a monophyletic group composed of the green algae and land plants. Consequently, P. parkeae and other prasinophytes illuminate early-evolved Viridiplantae traits likely fundamental in the systems biology of green algae and land plants. Cellular structure and organellar genomes of P. parkeae are now well understood, and transcriptomic sequence data are also publically available for one strain of this species, but corresponding nuclear genomic sequence data are lacking. For this reason, we obtained shotgun genomic sequence and assembled a draft nuclear genome for P. parkeaeNIES254 to use along with existing transcriptomic sequence to focus on carbohydrate-active enzymes. We found that the P. parkeae nuclear genome encodes carbohydrate-active protein families similar to those previously observed for other prasinophytes, green algae, and early-diverging embryophytes for which full nuclear genomic sequence is publically available. Sequences homologous to genes related to biosynthesis of starch and cell wall carbohydrates were identified in the P. parkeae genome, indicating molecular traits common to Viridiplantae. For example, the P. parkeae genome includes sequences clustering with bacterial genes that encode cellulose synthases (Bcs), including regions coding for domains common to bacterial and plant cellulose synthases; these new sequences were incorporated into phylogenies aimed at illuminating the evolutionary history of cellulose production by Viridiplantae. Genomic sequences related to biosynthesis of xyloglucans, pectin, and starch likewise shed light on the origin of key Viridiplantae traits.

show abstract

Section: Discussionmentioning

confidence: 68%

Section: Cazymes Of Pyramimonas Parkeaementioning

confidence: 99%

Genome‐wide analysis of carbohydrate‐active enzymes in Pyramimonas parkeae (Prasinophyceae)

Satjarak

Graham

2017

Journal of Phycology

View full text Add to dashboard Cite

show abstract

“…From Arnott's studies on plant polysaccharides [129] (see Section 2.5) it is well conceivable that the structure of the biopolymer determines to some extent the deposition of the mineral phase, whereas the mode of biosynthesis determines the structure of the biopolymer. It is not unusual for cellulose synthases to form a patterned arrangement within cytoplasmic membranes [153,154], whereas hyaluronan synthases are functional as monomers [155] and do not produce any crystalline polymer [156]. Still, there are proteins (e.g., the transmembrane protein layilin) that provide a direct link between the extracellular hyaluronan and the intracellular cytoskeleton The highest level of complexity with respect to the enzymatic regulation of biopolymer structure is illustrated by the biosynthesis and maturation of bone and dentin collagen (see also Table 1 [146,159,160]).…”

Section: Enzymes Involved In the Formation Of The Matrix Frameworkmentioning

confidence: 99%

The Role of Enzymes in Biomineralization Processes

Weiss¹,

Marin²

2008

Biomineralization

View full text Add to dashboard Cite

show abstract

“…The dinoflagellate species Scrippsiella hexapraecingula has a TC only composed of two linear rows of particles . Okuda et al (2004) reported the presence of TCs in the Eustigmatophyceae first. The TC of the eustigmatophycean alga Pseudocharaciopsis minuta consists of a single linear row of particles on the PF of the plasma membrane (Figure 12-28).…”

Section: Occurrence Of Distinct Tcs In the Heterokontophytamentioning

confidence: 99%

“…There is evidence now that a TC is the site of cellulose synthesis (Kimura et al 1999). Several distinct TCs have been found in various organisms (Brown, Jr. and Montezinos 1976;Peng and Jaffe 1976;Willison and Brown, Jr. 1978;Zaar 1979;Mueller and Brown, Jr. 1980;Giddings et al 1980;Mizuta et al 1989;Itoh 1990;Tsekos and Reiss 1992;Tsekos et al1996;Grimson et al 1996;Sekida et al 2004;Okuda et al 2004), and species belonging to the same phylogenetic group are considered to have the same type of TC (Brown, Jr. 1985;Okuda 2002). TCs are categorized into two main types, rosette and linear.…”

Section: Introductionmentioning

confidence: 99%

Cellulose-Synthesizing Complexes of a Dinoflagellate and other Unique Algae

Okuda

Sekida

2007

Cellulose: Molecular and Structural Biology

Self Cite

View full text Add to dashboard Cite

Cellulose-synthesizing terminal complexes (TCs) are observed as particle arrays on the fractured faces of membranes by freeze-fracture electron microscopy and assumed to be enzyme complexes that synthesize cellulose microfibrils. Several distinct TCs have been reported in various organisms from prokaryotes to animals. Among them, the dinoflagellate Scrippsiella hexapraecingula is only one species that has been known to have a TC so far in the protistian supergroup Alveolates. In S. hexapraecingula thecal plates in motile cells and a pellicle in nonmotile cells contain cellulose microfibrils. TC appears on the plasma membrane of the nonmotile cells and consists of two rows of particles. Microfibrils synthesized by these TCs are bundles composed of fine fibrils about 2 nm in diameter. The heterokontophytes are thought to be one of algal lineages that have been established through secondary endosymbioses. In the heterokontophytes, three distinctive TCs synthesize thin, ribbon-like cellulose microfibrils in common, which include a single linear row type TC in the Eustigmatophyceae and the Phaeophyceae, a diagonal row TC type in the Xanthophyceae, and a 2-3 row TC type in the Phaeothamniophyceae. The diversity and evolution of TCs are discussed.

show abstract

Cellulose-synthesizing complexes in some chromophyte algae

Cited by 19 publications

References 38 publications

Genome‐wide analysis of carbohydrate‐active enzymes in Pyramimonas parkeae (Prasinophyceae)

Genome‐wide analysis of carbohydrate‐active enzymes in Pyramimonas parkeae (Prasinophyceae)

The Role of Enzymes in Biomineralization Processes

Cellulose-Synthesizing Complexes of a Dinoflagellate and other Unique Algae

Contact Info

Product

Resources

About