Abstract
The developmental biology of root border cells in higher plants is one of the newly emerged research fields. The viability, number, induction, and response to temperature of border cells were investigated during seed germination in barley (Hordeum vulgare L. cv. Humai 8). The viability of border cells attached to the root tip was (95±3)% using FDA-PI method (Fig.1A). CC medium and 0.5 mol/L mannitol solution were beneficial to border cell survival (Fig.1B). During normal seed germination, the first formation of border cells occurred almost synchronously with primary root tip emergence in barley. The number of border cells increased with root elongation, and reached its maximum value (about 1 400) when the root was 20-25 mm long (Fig.2A). When a full set of border cells was removed, a new set of border cells was induced within 48 h (Fig.2B). Further studies showed that there existed no specific extracellular inhibitor in border cell secretions (Fig.2C).
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Claims 8
Claim · model-written summary
Attached barley root border cells had 95±3% viability.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Material
- Humai 8e1
- Organ / stage
- border cellse0
- Outcome
- viability of border cellse0
- Value
- (95±3)%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The viability of border cells attached to the root tip was (95±3)%”
e1“in barley (Hordeum vulgare L. cv. Humai 8)”
Claim · model-written summary
CC medium benefited barley border cell survival.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- CC mediume0
- Outcome
- border cell survivale0
- Direction
- beneficiale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CC medium and 0.5 mol/L mannitol solution were beneficial to border cell survival”
e1“in barley (Hordeum vulgare L. cv. Humai 8)”
Claim · model-written summary
A 0.5 mol/L mannitol solution benefited barley border cell survival.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- 0.5 mol/L mannitol solutione0
- Outcome
- border cell survivale0
- Direction
- beneficiale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.5 mol/L mannitol solution were beneficial to border cell survival”
e1“in barley (Hordeum vulgare L. cv. Humai 8)”
Claim · model-written summary
Barley border cells first formed almost synchronously with primary root tip emergence.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- border cellse0
- Outcome
- first formation of border cells occurred almost synchronously with primary root tip emergencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the first formation of border cells occurred almost synchronously with primary root tip emergence in barley”
Claim · model-written summary
Barley border cell numbers increased with root elongation.
- Taxon
- barleyHordeum vulgaree1
- Organ / stage
- roote0
- Outcome
- number of border cellse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of border cells increased with root elongation”
e1“in barley (Hordeum vulgare L. cv. Humai 8)”
Claim · model-written summary
Barley border cell numbers reached about 1 400 at a root length of 20-25 mm.
- Taxon
- barleyHordeum vulgaree2
- Outcome
- number of border cellse1
- Direction
- maximume0
- Value
- about 1 400e0
- Qualifier
- when the root was 20-25 mm longe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reached its maximum value (about 1 400) when the root was 20-25 mm long”
e1“The number of border cells increased with root elongation”
e2“in barley (Hordeum vulgare L. cv. Humai 8)”
Claim · model-written summary
A new set of barley border cells formed within 48 h after removal of a full set.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- a full set of border cells was removede0
- Outcome
- a new set of border cells was inducede0
- Value
- 48 he0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When a full set of border cells was removed, a new set of border cells was induced within 48 h”
e1“in barley (Hordeum vulgare L. cv. Humai 8)”
Claim · model-written summary
No specific extracellular inhibitor was found in barley border cell secretions.
- Taxon
- barleyHordeum vulgaree1
- Outcome
- no specific extracellular inhibitor in border cell secretionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there existed no specific extracellular inhibitor in border cell secretions”
e1“in barley (Hordeum vulgare L. cv. Humai 8)”
The same questions in other papers
mannitol · survival · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
in vitro · survival · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.