Electron microscopy of yeast mitochondria

Thyagarajan, T. R.; Conti, S. F.; Naylor, H. B.

doi:10.1016/0014-4827(61)90331-7

Cited by 18 publications

(3 citation statements)

References 8 publications

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“…nuimerouis well-defined mitochondria were observed ( 17). Since the yeast cell is one of the simplest in which the existence of mitochondria has beein demonstrated, a stuidy of the ability of the mitochondria to catalyze terminal oxidations was initiated.…”

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confidence: 99%

Respiratory System of Rhodotorula glutinis I. Inhibitor Tolerance and Cytochrome Components

Matsunaka

Morita

Conti³

1966

Plant Physiol.

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Summary. Oxygen uiptake by the carotenoid-containinig yeast, Rhiodotorutl(a gliitinis was not affected by concentrationis of cyanide and antimycin A which completely inhibit the respiration of Saccharoinzyces ccrevisiae. The tolerance of R. glutitimis to these inhibitors was somewhat dependent on the age of the culttures. Reduced 1364 Materials and MethodsCuiltuires of R. glutiniis were grown with vigorotus aeratioin at 26 to 28°in 500 ml flasks cointainiing 100 ml of a gluicose, ammoniuim suLlfate, asparagine mediuim (13). The inocuiltum for the main cuiltuire was grown in a complex medium (8)

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confidence: 99%

Respiratory System of Rhodotorula glutinis I. Inhibitor Tolerance and Cytochrome Components

Matsunaka

Morita

Conti³

1966

Plant Physiol.

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“…The mitochondrial cristae are much less regular in shape and arrangement than those of Rhizopus (Hawker & Abbott, 1963) or of certain yeasts (Thyagarajan, Conti & Naylor, 1961). They resemble those of many algae and protozoa and also the irregularly distended ones of the liverwort Anthoceros illustrated by Manton fig.…”

Section: Discussionmentioning

confidence: 95%

Fine Structure of the Young Vegetative Hyphae of Pythium debaryanum

Hawker

Abbott

1963

Journal of General Microbiology

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SUMMARYThe fine structure of Pythium debaryanum Hesse differs from that of Rhizopus species and some other fungi in the abundant regularly distributed endoplasmic reticulum, the presence of typical Golgi-bodies and the irregularly tubular structure of the cristae mitochondriae. Some of these characters resemble those of some algae and the liverwort Anthoceros and the significance of this is discussed. Typical lomasomes are present. METHODS Young hyphae of Pythium debaryanum RESULTSThe cell wall shows no structure and is represented only by a narrow electron transparent zone (Pl. 8, fig. 5).

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“…The relationship of the endoplasmic reticulum with other cell organelles has received considerable attention; in yeasts the endoplasmic reticulum is often continuous with the nuclear membrane (e.g. Prusso & Wells, 1967) and has been stated to be continuous with mitochondria (Thyagarajan, Conti & Naylor, 1961). Lindegren (1962) proposed an association of the endoplasmic reticulum with the vacuole in Saccharomyces.…”

Section: ' V the Endoplasmic Reticulum And Dictyosomesmentioning

confidence: 99%

Membranous Structures in Yeasts

Marchant

Smith

1968

Biological Reviews

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Summary 1. Most yeast cells carrying out active respiration have spherical or ellipsoidal mitochondria, with plate‐like cristae. 2. Cytoplasmic petite strains of Saccharomyces cerevisiae have aberrant mitochondria, often containing whorled membranes. Mutants with deficiencies in the tricarboxylic acid cycle have mitochondria which appear normal when the cells are grown in low levels of glucose. 3. Cells of normal and petite S. cerevisiae grown strictly anaerobically show no recognizable mitochondrial profiles. 4. Carbon substrates which can only be respired promote the development of well‐defined mitochondria. In certain facultatively anaerobic yeasts respiration is suppressed by glucose and the mitochondria under these conditions are large, pleomorphic and few in number. Other fermentable carbohydrates do not give this repression. 5. A number of antibacterial antibiotics, which inhibit mitochondrial protein synthesis, cause a disorganization of the mitochondrial cristae. 6. In yeast cells adapting from anaerobic to aerobic conditions mitochondria appear to develop from proliferations of the endoplasmic reticulum, which become progressively more organized. 7. Vacuoles often contain granular material, but in S. cerevisiae the vacuole, which has been described as a lysosome, frequently contains myelin‐like lipid inclusions. The material in these inclusions is apparently derived from spherosomes. 8. Endoplasmic reticulum, orientated parallel to the plasmalemma, may be associated with fermentative ability in certain facultatively anaerobic yeasts. Endoplasmic reticulum is also actively involved in the budding process. 9. Normally the yeast‐cell plasmalemma shows only minor convolutions, but in chloramphenicol‐grown Rhodotorula glutinis the plasmalemma produces vesicular structures termed ‘paramural bodies’. 10. The yeast nuclear membrane has about 200 pores occupying 6–8 % of the total surface area. The nuclear membrane remains intact during mitotic division in yeasts until the daughter nuclei separate.

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Electron microscopy of yeast mitochondria

Cited by 18 publications

References 8 publications

Respiratory System of Rhodotorula glutinis I. Inhibitor Tolerance and Cytochrome Components

Respiratory System of Rhodotorula glutinis I. Inhibitor Tolerance and Cytochrome Components

Fine Structure of the Young Vegetative Hyphae of Pythium debaryanum

Membranous Structures in Yeasts

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