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Wechselwirkung von Riboflavin, Isoriboflavin und 2‐Thiouracil auf die Induktion zweidimensionalen Wachstums von Farnprothallien
Author(s) -
Schraudolf H.,
Legler K.
Publication year - 1969
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1969.tb07380.x
Subject(s) - riboflavin , in vivo , antagonism , chemistry , fern , cell division , cell growth , cell , biochemistry , biology , botany , receptor , microbiology and biotechnology
Action of riboflavin, isoriboflavin and 2‐thiouracil in the induction of 2‐dimensional growth of fern prothallia. —The inhibition of cell division induced by 2‐thiouracil in prothallia of Dryopteris filix‐mas and Anemia phyllitidis is reversed by riboflavin as well as by its physiological inactive analogue isoriboflavin. This antagonism is not due to an in vivo interaction as stated by Yeoh and Raghavan, but is rather caused by an in vivo sensibilisation of photo destruction of the inhibitor during early phase of spore germination. Riboflavin as well as isoriboflavin strongly inhibit cell divisions in the prothallia of Anemia phyllitidis. In spite of a significantly reduced growth rate NO retardation of the onset of the 2‐diniensional differentiation, as related lo a critical cell number, can be slated in the Anemia prothallia.