Lipotubuloids in ovary epidermis of Ornithogalum umbellatum act as metabolons: suggestion of the name ‘lipotubuloid metabolon’
نویسندگان
چکیده
منابع مشابه
Microtubule heterogeneity of Ornithogalum umbellatum ovary epidermal cells: non-stable cortical microtubules and stable lipotubuloid microtubules.
Lipotubuloids, structures containing lipid bodies and microtubules, are described in ovary epidermal cells of Ornithogalum umbellatum. Microtubules of lipotubuloids can be fixed in electron microscope fixative containing only buffered OsO(4) or in glutaraldehyde with OsO(4) post-fixation, or in a mixture of OsO(4) and glutaraldehyde. None of these substances fixes cortical microtubules of ovary...
متن کاملMicrotubules with different diameter, protofilament number and protofilament spacing in Ornithogalum umbellatum ovary epidermis cells.
Microtubules present in the epidermis of Ornithogalum umbellatum ovary in the area of lipotubuloids (i.e. aggregates of lipid bodies surrounded by microtubules) are 25-51 nm in diameter. They consist mainly of 10 and 11, sometimes 9 and 12 protofilaments. An average diameter of microtubule consisting of 9 subunits is about 32 nm, of 10-35 nm, of 11-38 nm and of 12-43 nm, however, individual mic...
متن کاملRole of DNA endoreduplication, lipotubuloids, and gibberellic acid in epidermal cell growth during fruit development of Ornithogalum umbellatum.
Cytophotometry of individual nuclei was used to examine the level of endoreduplication in epidermal cells from the upper and lower parts of the ovary during Ornithogalum umbellatum flower and fruit development. An increase in DNA content from 2-4C to 2-8C in both parts of the ovary was observed, while the epidermal cell surface area grew about 6-fold and 15-fold in the lower and upper parts of ...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 2014
ISSN: 1460-2431,0022-0957
DOI: 10.1093/jxb/eru469