Abstract
S ummary In root apices of Sinapis alba mitosis is partially synchronous under certain cultural conditions, with two maxima and two minima of mitotic index each day. But the phase of the partial synchrony is different in the stele and cortex from that in the cap initials and that in the quiescent centre. The average rates of mitosis vary from once in 35 hours in the cap initials to once in 500 hours in the quiescent centre. Cells of the cortex and stele divide more slowly near the quiescent centre than at 150 microns from it. In this respect Sinapis differs from Zea and the dissimilarity in organization may be due to the possession of partial synchrony and the opportunity it gives for phasic differences in synthesis.
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Claims 6
Claim · model-written summary
Root apex mitosis was partly synchronous with two daily maxima and minima.
- Taxon
- Sinapis alba
Sinapis albae0 - Organ / stage
- root apicese0
- Outcome
- mitosis is partially synchronouse0
- Value
- two maxima and two minimae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In root apices of Sinapis alba mitosis is partially synchronous under certain cultural conditions, with two maxima and two minima of mitotic index each day.”
Claim · model-written summary
The phase of partial synchrony differed among stele, cortex, cap initials and quiescent centre.
- Taxon
- Sinapis albaSinapis albae1
- Organ / stage
- stele and cortexe0
- Outcome
- phase of the partial synchronye0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the phase of the partial synchrony is different in the stele and cortex from that in the cap initials and that in the quiescent centre”
e1“Sinapis alba”
Claim · model-written summary
Average mitosis rate was once in 35 hours in cap initials.
- Taxon
- Sinapis albaSinapis albae1
- Organ / stage
- cap initialse0
- Outcome
- average rates of mitosise0
- Value
- once in 35 hourse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average rates of mitosis vary from once in 35 hours in the cap initials to once in 500 hours in the quiescent centre.”
e1“Sinapis alba”
Claim · model-written summary
Average mitosis rate was once in 500 hours in quiescent centre.
- Taxon
- Sinapis albaSinapis albae1
- Organ / stage
- quiescent centree0
- Outcome
- average rates of mitosise0
- Value
- once in 500 hourse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average rates of mitosis vary from once in 35 hours in the cap initials to once in 500 hours in the quiescent centre.”
e1“Sinapis alba”
Claim · model-written summary
Cortex and stele cells divided more slowly near quiescent centre than 150 microns away.
- Taxon
- Sinapis albaSinapis albae1
- Outcome
- Cells of the cortex and stele dividee0
- Direction
- more slowlye0
- Comparator
- 150 microns from ite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cells of the cortex and stele divide more slowly near the quiescent centre than at 150 microns from it.”
e1“Sinapis alba”
Claim · model-written summary
Sinapis differed from Zea in this pattern.
SinapisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this respect Sinapis differs from Zea”