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Hertha Meyer

Hertha Meyer, German-born Jewish Brazilian microscopist (Germany 03 May 1902 – Rio de Janeiro 06 September 1990)



ACHIEVEMENTS



Performed the first ultra structural studies on pathogenic protozoan (Trypanosoma, Toxoplasma & Plasmodium

Described structures such as cytoplasmic microtubules (1954) and the mitochondria-kinetoplast junction in many protozoan species   

 

With F.N. Guimarães described conoid organelle of Toxoplasma sp.


Developed methodology for the cultivation of Toxoplasma gondii in tissue culture being the first reproducible studies on it
With F.N. Guimarães. Cultivo de Toxoplasma Nicolle e Manceaux, 1909, em cultura de tecidos. Rev. Bras. Biol. 2:123-9, 1942


With F.N. Guimarães first to report active penetration of Toxoplasma gondii into cells



First to observe Toxoplasma gondii by transmission electron microscopy
With I. Andrade Mendonça. Electron microscopy observation of Toxoplasma Nicolle et Manceaux grown in tissue cultures. Parasitology 45:449-51, 1955



First to describe long and dark stained inclusions characteristic of the Apicomplexa phylum
With I. Andrade Mendonça. Electron microscopy observation of Toxoplasma Nicolle et Manceaux in thin sections of tissue cultures. Parasitology 47:66-9, 1957



First to publish electron microscopy figures of Trypanosoma cruzi
With K.R. Porter. A study of Trypanosoma cruzi with the electron microscope. Parasitology 44:16-23, 1954


With Xavier de Oliveira first performed the growing cultures of Trypanosoma cruzi in tissue cultures (1948)


Developed in vitro culture of exo-erythrocytary form of Plasmodium gallinaceum  

With W. L. Paraense & V. Menezes. Estudos sobre Plasmodium gallinaceum. Comportamento dos esporozoitos em cultura de baço embrionário. Rev. Bras. Biol. 2(1):89-94, 1942


With G. Levi developed methods for studying nervous system tissues in vitro


With R. Levi-Montalcini developed a test for studying sarcoma effects on tissue culture



SOME BIBLIOGRAPHY

With R.D. Machado & W.M. Cintra. On the cultivation of Trypanosoma cruzi in tissue cultures of the spinal and sympathetic ganglion from the chick embryo. An. Acad. Bras. Ciencias 54:739-42, 1982

With W. de Souza. On the fine structure of the nucleus in Trypanosoma cruzi in tissue culture forms (1974)

With M.A. Esquibel, I. Alonso, G. Oliveira Castro & C. Chagas Filho. Quelques aspects de l’histogenese et de l’ontogenese des organes electriques chez Electrophorus electricus (L.). C.R. Acad. Sci. Paris Ser. D 273:196-9, 1971

With M.X. de Oliveira. Ação do S. cruzi degenerado ou em suspensão de tripanosomas mortos sobre células nervosas em cultura de tecido de embriões de galinha. O Hospital 55:889-903, 1959

With A. Couceiro & C. Chagas Filho. Estrutura submicroscópica da eletroplaca do Electrophorus electricus (L.). Anais Acad. Bras. Ciencias 27, 1955

Electron microscope study of nerve fibres grown in vitro. Experimental Cell Research 7:15-22, 1954

With R. Levi-Montalcini & V. Hamburger. In vitro experiments on the effects of mouse sarcomas 180 and 37 on the spinal and sympathetic ganglia of the chick embryo. Cancer Res. 14(1):49-57, 1954

Cultivation of the erythrocytic form of Plasmodium gallinaceum in tissue cultures of embryonic chicken brain. Nature 160:155-6, 1949

Cultivo de Plasmodium gallinaceum em culturas de tecido a partir de sangue infectado. II. Rev. Bras. Biol. 9, 1949

With M.X. de Oliveira. Cultivation of Trypanosoma cruzi in tissue culture: a four year study. Parasitol. 39(12):91-4, 1948

With G. Levi. Reactive, regressive and regenerative processes of neurons cultivated in vitro and injured with the micromanipulator. J. Exp. Zool. 99:141-81, 1945

With M.X. de Oliveira. Conservação de protozoários em culturas de tecido mantidas a temperatura ambiente. Rev. Bras. Biol. 3:341-3, 1943

With C. Romaña. Estudo do ciclo evolutivo do Schizotrypanum cruzi em cultura de tecido de embrião de galinha. Mem. Inst. Oswaldo Cruz 37:19-27, 1942

With M.X. de Oliveira. Observações sobre divisões mitóticas em células parasitadas. Anais Acad. Bras. Ciencias 14:289-92, 1942

Culturas de tecido nervosa infectados por Schizotrypanum cruzi. Anais Acad. Bras. Ciencias 14:253-5, 1942

With G. Levi. Nouvelles recherches sur le tissu nerveux cultivé in vitro (1941)

Culture of cilia and iris muscle with the chicken embryos. Zeit. Mikroskop. Anat. Forschung 39:161-71, 1936

In vitro culture of the retina of hens. Zeit. Mikrosk. Anat. Forschung 39:151-60, 1936

With G. Levi. Nuovi studi sul destino del tessuto nervoso espiantato in vitro (1934)

Wechselbeiehungen zwischennormalen und bosartigen geweben. Ztschr. f. Krebsforsch. 29(3):270, 1929

With G. Levi. Divisione mitotica di cellula nervosa in colture in vitro. Atti Acad. Naz. Lincei 8(18):352-8,

Electron microscope study of nerve fibres grown in vitro

Cultivo de uma Borrelia em culturas de tecido

Estudo sobre a presença e a distribuição de fibras colágenas e reticulares em culturas de gânglio espinhal de embrião de galinha

Uberleben von Mausekarzinomkulturen in vitro bei Zimmerkultur


Aspectos morfologicos do Schizotrypanum cruzi em culturas de tecidos