Abstract：
:The ultrastructure of β-chitin microfibrils from a centric diatom, Thalassiosira, and a tubeworm, Lamellibrachia, was studied using electron diffraction and high-resolution electron microscopy. Electron microdiffraction diagrams corresponding to each projection of the β-chitin crystals were obtained, and all the data support the structure model of anhydrous β-chitin crystals proposed by X-ray diffraction experiments. From high-resolution electron microscopy on ultrathin sections, the cross-sectional shapes of the microfibrils from Thalassiosira and Lamellibrachia were observed as a rectangular and parallelogram, respectively. The lattice fringes corresponding to the (010) plane of anhydrous β-chitin crystals were clearly observed in both cross-sections. Based on these observations, we have constructed a molecular packing model for β-chitin microfibrils.
journal_name
J Struct Bioljournal_title
Journal of structural biologyauthors
Ogawa Y,Kimura S,Wada Mdoi
10.1016/j.jsb.2011.07.001subject
Has Abstractpub_date
2011-10-01 00:00:00pages
83-90issue
1eissn
1047-8477issn
1095-8657pii
S1047-8477(11)00194-8journal_volume
176pub_type
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