Development of Peripheral Vacuoles in Plant Cells

Mahlberg, Paul G.; Olson, Kenton; Walkinshaw, Charles H.

doi:10.2307/2440993

Cited by 9 publications

(9 citation statements)

References 7 publications

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“…Electron micrographs of the sections of plant cells have often revealed complex membranous structures, appearing as clusters of vesicles and tubules, and as membranous whorls 6,8,12,18,19,21,22), Similar structures have been observed in many bacteria (reviewed by van Iterson17)), fungi (reviewed by Bracker4)) and algae 1,2,3,7). The structures which gram-positive bacteria possess were named mesosome by FizJames13).…”

Section: Introductionmentioning

confidence: 80%

Complex membranous organelles in the cells of the local lesion area on cowpea leaves infected with cucumber mosaic virus.

Ehara

1979

Jpn. J. Phytopathol.

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The location and structural characteristics of the membranous organelles in the cells of local lesion area produced by cucumber mosaic virus (CMV) in cowpea (Vigna sinensis (L.) Endl. var. sesquipedalis; Kurodane-sanjaku) leaves were investigated by electron microscopy and compared with those of healthy cells.In the healthy tissue the membranous organells were mainly observed in the vacuole of phloem and epidermal cells, with small and simple structure.In the cells dying due to the infection, on the other hand, tubular and circinate membrane aggregations developed between the cytoplasm and the cell wall and in the vacuole. When these cells had died completely, the remnants of the membranous organelles were seen in the electron-lucent areas in the vicinity of the cell wall and in the central part.In the cells surrounding the dead cells, enlarged and complex membranous organelles containing knots of anastomosing tubules appeared mainly in the vacuole. Considering the location and changes in structure of these membranous organelles, they are assumed to play a role in excretion and a mediative role between the vacuole and cell exterior.The organelles seemed to be formed owing to invagination of plasma membrane.

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Section: Introductionmentioning

confidence: 80%

Complex membranous organelles in the cells of the local lesion area on cowpea leaves infected with cucumber mosaic virus.

Ehara

1979

Jpn. J. Phytopathol.

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“…They appear to undergo enlargement and expansion into the vacuole and may occupy a considerable volume of the cell. Evidence to support an interpretation that they are real and not fixation artifacts, is derived from recent comparative studies of living hair cells of Tradescantia virginiana which possessed membranous structures comparable in dimensions to those present in ultrastructural views (Mahlberg et al, 1970).…”

mentioning

confidence: 98%

“…Structures that correspond to the invaginations are present in living cells, including the hair cells from the corolla of V. rosea and the stamens of Tradescantia virginiana. Various organelles streaming in the peripheral cytoplasm move across the curved surfaces of these structures and return to the parietal layer of cytoplasm (Mahlberg et al, 1970). Fig.…”

mentioning

confidence: 99%

“…The literature on the occurrence of the endocytic phenomenon in plant cells is fragmentary and controversial (Buvat, 1958;Jensen and Mc Laren, 1960;Mahlberg. Olson, and Walkinshaw, 1970;Marchant and Robards, 1968;Weiliz, 1962;Whaley, Mollenhauer, and Leech, 1960).…”

mentioning

confidence: 99%

“…3). An invagination at this stage in development is typically a cupshaped structure bounded only by the plasma membrane with a circular aperture at the plasma membrane surface (Mahlberg et al, 1970).…”

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confidence: 99%

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Origin and Development of Plasma Membrane Derived Invaginations in Vinca Rosea L.

Mahlberg

Olson

Walkinshaw

1971

American J of Botany

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The plasma membrane in immature cells is often irregular in contour. Some irregularities become conspicuous folds that continue to enlarge into the cytoplasm. These invaginations may continue to increase in size and typically expand into the central vacuole. Sections show two closely parallel membranes in areas where the invagination projects into the vacuole. A narrow layer of cytoplasm may traverse the intermembrane zone between the membranes. The interior of an invagination may lack obvious content, or may be occupied by a fibrous material, or vesicular and tubular structures. The small vesicles bound by a single membrane appear to be derived from a projection formed most frequently near the orifice of the invagination. The origin of large vesicles and tubules possessing one membrane is not certain although they may arise by the fusion of several small vesicles. Alternatively, tubules, once formed, often possess constrictions along their length which suggest that these structures may become divided into a series of smaller vesicles. There is some evidence that cytoplasmic vesicles may fold into the membrane of the invagination and subsequently be pinched off into the interior of the sac. These vesicles are bounded by two membranes. Vesicles frequently contain an electron‐dense content more or less homogeneous in composition and unlike the typical ribosomal character of the cytoplasm. The function of the invaginations or their content remains to be elucidated.

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Ultrastructural Studies Plasma Membrane Related Secondary Vacuoles in Cultured Cells

Mahlberg

Turner

Walkinshaw

et al. 1974

American J of Botany

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The plasma membrane of cultured cells of several plant species was observed to possess invaginations, or secondary vacuoles, of variable size in the adjacent cytoplasm. These structures, which occurred in cells at different phases in vacuolation, were very numerous in thin sections of some cells but fewer in others. In vacuolated cells enlarged secondary vacuoles protrude into the primary vacuole but are delimited from the tonoplast by an intermembrane zone of variable width. The plasma membrane at the orifice of an invagination may fuse and detach the secondary vacuole from the membrane to form in the cytoplasm a structure bounded by a single membrane. Complex accumulations of membranes consisting of spherical, tubular, and laminar structures, possibly containing cytoplasm, may develop within secondary vacuoles. Contents of many of these vacuoles arise from folds along its limiting membrane which pinch off into the interior of the secondary vacuole. A fibrous substance, possibly derived from the wall, is present in some secondary vacuoles. Observed folding of the plasma membrane and measurements of membrane width of various organelles and cytomembranes support an interpretation that endocytosis occurs in cultured cells.

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Development of Peripheral Vacuoles in Plant Cells

Cited by 9 publications

References 7 publications

Complex membranous organelles in the cells of the local lesion area on cowpea leaves infected with cucumber mosaic virus.

Complex membranous organelles in the cells of the local lesion area on cowpea leaves infected with cucumber mosaic virus.

Origin and Development of Plasma Membrane Derived Invaginations in Vinca Rosea L.

Ultrastructural Studies Plasma Membrane Related Secondary Vacuoles in Cultured Cells

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