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Digitale Medien

Effects of TA [4-ethoxy-1-(p-tolyl)-s-triazine-2,6-(1H, 3H)-dione] on growth, antheridium differentiation and gibberellin uptake of gametophytes ofAnemia phyllitidis L. Sw. (1984)

Schraudolf, H.

Springer

Cellular and molecular life sciences 40 (1984), S. 1258-1259

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ISSN: 1420-9071

Schlagwort(e): Fern ; Anemia phyllitidis ; antheridium differentiation ; TA (4-ethoxy-1-(p-tolyl)-s-triazine-2,6-(1H, 3H)-dione) ; gibberellin uptake

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Summary Synergistic effects of TA on gibberellin-dependent reactions in spermatophytes are not detectable in gametophytes of the fernAnemia phyllitidis where gibberellin substitutes for antheridiogens with regard to induction of male sexual organs and dark germination. In this archegoniate TA caused a significant reduction in growth rate and morphogenesis of the gametophytes, inhibitions that were not abolished by simultaneous application of gibberellin.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01946662

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Digitale Medien

Translation and transcription in imbibed and germinating spores of Anemia phyllitidis L.Sw. (1984)

Fechner, A. ; Schraudolf, H.

Springer

Planta 161 (1984), S. 451-458

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ISSN: 1432-2048

Schlagwort(e): Anemia (fern) ; Germination (mRNA) ; Pteridophyta ; Spore (germination) ; Translation ; Transcription

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract Induction of germination by gibberellin or light is not a prerequisite for protein and RNA synthesis in spores of A. phyllitidis. Imbibed but non-induced spores of this fern show a high rate of translation as well as appreciably transcription of all RNA types. The pattern of in-vitro translation of polyadenylated RNA present in the dry spore corresponds with the in-vivo translation products under non-inductive conditions. New proteins are not detectable among the in-vitro and in-vivo translation products until 48 h after a germination stimulus. Although the dark imbibition of spores is accompanied by a reduction in the lengths of polyadenylated tracts of the stored mRNA, this fraction is characterized by a remarkable stability which is undoubtedly a prerequisite for the high viability of these fern spores. The importance of these results for the general meaning of stored mRNA in spore and seed germination processes is discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00394577

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Digitale Medien

Effects of metronidazole on growth, chloroplast structure and differentiation in gametophytes ofAnemia phyllitidis L. Sw. (1982)

Schraudolf, H.

Springer

Protoplasma 113 (1982), S. 144-149

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ISSN: 1615-6102

Schlagwort(e): Anemia phyllitidis ; Chloroplast ; Gametophyte ; Metronidazole ; Ultrastructure

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Summary Metronidazole inhibits cell division in gametophytes of the fernAnemia phyllitidis without changing morphogenetic patterns. Simultaneously the sensitivity of the prothallia against gibberellins which substitute for the natural sexual pheromone “antheridiogen A”, is increased. The inhibition of cell division is accompanied by a loss of chlorophyll and by severe changes in the ultra-structure of the chloroplasts.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01282004

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