Abstract
1. If the seeds and growing points of the seedlings of theA. crispa and the A. punctata are treated with each solution of high concentration of streptomycin, aureomycin, chloromycetin and terramycin, knobs are formed on various growing points of the plants and then the growth of the plant stop as in the case of heat treatment, but in theA. japonica which is closely affined to them and non-leaf-nodular plant, knobs are never formed either by antibiotics or by heat treatment.2. Knobs are formed in proportion to the degree of concentration of the solution and the duration of treating time, and in the same method of treatment knob-forming ratio of theA. crispa are generally higher than that of theA. punctata and the size of the knobs of the former plant is larger.3. The knobs are formed of epidermis, cortex and central cylinder, and no meristem and leaf-nodule-bacteria are recognized in any part of them by microscope, and the structures of them are almost as same as those formed by the treatment of heat.4. It is probable that the formation of the knobs is due to a substance, secreted by the leaf-nodule-bacteria, which cluster on the growing point and die by the treatment of antibiotic or of heat, and that this knob-forming substance may also acts on the formation of leaf nodules to some extent.
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Claims 9
Claim · model-written summary
Antibiotics induced knobs and stopped growth in A. crispa seedlings.
- Taxon
- theA. crispae0
- Treatment
- high concentration of streptomycin, aureomycin, chloromycetin and terramycine0
- Outcome
- knobs are formed on various growing points of the plants and then the growth of the plant stope0
Not reportedComparatorDirection
Verbatim
e0“seeds and growing points of the seedlings of theA. crispa and the A. punctata are treated with each solution of high concentration of streptomycin, aureomycin, chloromycetin and terramycin, knobs are formed on various growing points of the plants and then the growth of the plant stop”
Claim · model-written summary
Antibiotics induced knobs and stopped growth in A. punctata seedlings.
- Taxon
- A. punctatae0
- Treatment
- high concentration of streptomycin, aureomycin, chloromycetin and terramycine0
- Outcome
- knobs are formed on various growing points of the plants and then the growth of the plant stope0
Not reportedComparatorDirection
Verbatim
e0“the A. punctata are treated with each solution of high concentration of streptomycin, aureomycin, chloromycetin and terramycin, knobs are formed on various growing points of the plants and then the growth of the plant stop”
Claim · model-written summary
A. japonica did not form knobs after antibiotic or heat treatment.
Not reportedComparatorDirection
Verbatim
e0“theA. japonica which is closely affined to them and non-leaf-nodular plant, knobs are never formed either by antibiotics or by heat treatment”
Claim · model-written summary
Knob formation increased with antibiotic concentration and treatment duration.
- Treatment
- concentration of the solution and the duration of treating timee0
- Outcome
- Knobs are formede0
- Direction
- in proportione0
Not reportedTaxon
Verbatim
e0“Knobs are formed in proportion to the degree of concentration of the solution and the duration of treating time”
Claim · model-written summary
A. crispa had a higher knob-forming ratio than A. punctata under the same treatment.
Verbatim
e0“knob-forming ratio of theA. crispa are generally higher than that of theA. punctata”
Claim · model-written summary
A. crispa knobs were larger than those of A. punctata.
Not reportedTaxon
Verbatim
e0“the size of the knobs of the former plant is larger”
Claim · model-written summary
Knobs contained epidermis, cortex and central cylinder, with no meristem or leaf-nodule-bacteria detected.
- Outcome
- epidermis, cortex and central cylinder, and no meristem and leaf-nodule-bacteriae0
Not reportedTaxonDirection
Verbatim
e0“The knobs are formed of epidermis, cortex and central cylinder, and no meristem and leaf-nodule-bacteria are recognized in any part of them by microscope”
Claim · model-written summary
Knob structure resembled that after heat treatment.
Not reportedTaxonDirection
Verbatim
e0“the structures of them are almost as same as those formed by the treatment of heat”
Claim · model-written summary
The authors proposed that a substance secreted by dying leaf-nodule bacteria induces knob formation and may contribute to leaf nodules.
- Interactor
- leaf-nodule-bacteriae0symbiont
- Outcome
- formation of the knobse0
- Qualifier
- a substance, secreted by the leaf-nodule-bacteriae0
Not reportedTaxon
Verbatim
e0“It is probable that the formation of the knobs is due to a substance, secreted by the leaf-nodule-bacteria, which cluster on the growing point and die by the treatment of antibiotic or of heat, and that this knob-forming substance may also acts on the formation of leaf nodules to some extent”