Abstract
The roots ofAllium cepa L. were treated with water solutions of cyanein and griseofulvin for 24 and 48 h respectively, thereafter cultured for 48 h in the medium without the antibiotics, and the reversibility of the inhibition caused by the antibiotics was evaluated. Changes in the mitotic index of meristematic cells were followed in squash preparations of root apices. In addition to the cytologic observations, the differentiation of the primary meristem was followed in longitudinal sections. After the treatment with reversible doses of cyanein and griseofulvin respectively, differences were found in both the effects of the antibiotics during the treatment and the restoration of the inhibited processes after the treatment. In the cells treated with cyanein the restoration of mitotic activity was instantaneous but less intensive and in|complete especially in the case of the 48 h treatment. After the treatment with griseofulvin which temporarily interfered also with the differentiation of the primary meristem, the restoration of the inhibited processes was delayed but intensive after both application times, 48 h after the treatment no symptoms of the preceding inhibition could be observed.
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Claims 4
Claim · model-written summary
Cyanein-treated root cells restored mitotic activity immediately, but less intensively and incompletely, especially after 48 hours.
- Taxon
- Allium cepa L.
Allium cepat0 - Treatment
- cyaneine0
- Outcome
- restoration of mitotic activitye0
- Qualifier
- especially in the case of the 48 h treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the cells treated with cyanein the restoration of mitotic activity was instantaneous but less intensive and in|complete especially in the case of the 48 h treatment.”
t0“Allium cepa L.”
Claim · model-written summary
Griseofulvin temporarily interfered with primary meristem differentiation.
- Taxon
- Allium cepa L.Allium cepat0
- Organ / stage
- primary meristeme0
- Treatment
- griseofulvine0
- Outcome
- differentiation of the primary meristeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“griseofulvin which temporarily interfered also with the differentiation of the primary meristem”
t0“Allium cepa L.”
Claim · model-written summary
After griseofulvin, restoration of inhibited processes was delayed but intensive after both application times.
- Taxon
- Allium cepa L.Allium cepat0
- Treatment
- griseofulvine0
- Outcome
- restoration of the inhibited processese0
- Qualifier
- after both application timese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After the treatment with griseofulvin which temporarily interfered also with the differentiation of the primary meristem, the restoration of the inhibited processes was delayed but intensive after both application times”
t0“Allium cepa L.”
Claim · model-written summary
No signs of preceding inhibition remained 48 hours after griseofulvin treatment.
- Taxon
- Allium cepa L.Allium cepat0
- Treatment
- griseofulvine0
- Outcome
- no symptoms of the preceding inhibition could be observede0
- Qualifier
- 48 h after the treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After the treatment with griseofulvin which temporarily interfered also with the differentiation of the primary meristem, the restoration of the inhibited processes was delayed but intensive after both application times, 48 h after the treatment no symptoms of the preceding inhibition could be observed”
t0“Allium cepa L.”