Abstract
Benzylaminopurine (BAP) or zeatin continuously supplied through the rooting solution to cuttings of pea ( Pisum sativum L. cv. Weibull's Marma), inhibited root formation down to a concentration of 3.10 −9 M . The inhibitory effect of BAP in the concentration range 10 −8 –10 −7 M was readily reversible if the cuttings were transferred to solutions without cytokinin after treatment for 1–4 days. A slight increase in the number of roots formed was obtained after treatment with low cytokinin concentrations for 1–2 days. Evidence from microscopic studies of primordia formation indicates that BAP inhibits differentiation of primordia at an early stage in their development. Growth of already formed primordia, or root elongation, was considerably less sensitive to the inhibitory effect of BAP. The results indirectly support the hypothesis that endogenous cytokinins prevent root formation in stems of intact plants and may be of importance for the regulation of rooting in cuttings.
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Claims 8
Claim · model-written summary
Continuously supplied benzylaminopurine inhibited root formation down to 3.10 −9 M.
- Taxon
- pea
Lathyrus oleraceuse0 - Material
- Weibull's Marmae0
- Treatment
- Benzylaminopurine (BAP)e0
- Outcome
- root formatione0
- Direction
- inhibitede0
- Value
- 3.10 −9 Me0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Benzylaminopurine (BAP) or zeatin continuously supplied through the rooting solution to cuttings of pea ( Pisum sativum L. cv. Weibull's Marma), inhibited root formation down to a concentration of 3.10 −9 M”
Claim · model-written summary
Continuously supplied zeatin inhibited root formation down to 3.10 −9 M.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- zeatine0
- Outcome
- root formatione0
- Direction
- inhibitede0
- Value
- 3.10 −9 Me0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Benzylaminopurine (BAP) or zeatin continuously supplied through the rooting solution to cuttings of pea ( Pisum sativum L. cv. Weibull's Marma), inhibited root formation down to a concentration of 3.10 −9 M”
Claim · model-written summary
BAP inhibition at 10 −8 –10 −7 M was reversible after transfer to cytokinin-free solutions following 1–4 days of treatment.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- transferred to solutions without cytokinine0
- Outcome
- inhibitory effect of BAPe0
- Direction
- reversiblee0
- Qualifier
- after treatment for 1–4 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibitory effect of BAP in the concentration range 10 −8 –10 −7 M was readily reversible if the cuttings were transferred to solutions without cytokinin after treatment for 1–4 days”
e1“cuttings of pea”
Claim · model-written summary
Low cytokinin concentration for 1–2 days slightly increased the number of roots.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- low cytokinin concentrations for 1–2 dayse0
- Outcome
- number of roots formede0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A slight increase in the number of roots formed was obtained after treatment with low cytokinin concentrations for 1–2 days”
e1“cuttings of pea”
Claim · model-written summary
BAP inhibited early differentiation of root primordia.
- Taxon
- peaLathyrus oleraceuse1
- Organ / stage
- primordiae0
- Treatment
- BAPe0
- Outcome
- differentiation of primordiae0
- Direction
- inhibitse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BAP inhibits differentiation of primordia at an early stage in their development”
e1“cuttings of pea”
Claim · model-written summary
Growth of formed primordia was less sensitive to BAP inhibition.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- BAPe0
- Outcome
- Growth of already formed primordiae0
- Direction
- less sensitivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth of already formed primordia, or root elongation, was considerably less sensitive to the inhibitory effect of BAP”
e1“cuttings of pea”
Claim · model-written summary
Root elongation was less sensitive to BAP inhibition.
- Taxon
- peaLathyrus oleraceuse1
- Treatment
- BAPe0
- Outcome
- root elongatione0
- Direction
- less sensitivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth of already formed primordia, or root elongation, was considerably less sensitive to the inhibitory effect of BAP”
e1“cuttings of pea”
Claim · model-written summary
The authors hypothesized that endogenous cytokinins prevent root formation in intact stems and regulate rooting in cuttings.
- Taxon
- peaLathyrus oleraceuse1
- Compound
- endogenous cytokininse0
- Outcome
- root formatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“endogenous cytokinins prevent root formation in stems of intact plants and may be of importance for the regulation of rooting in cuttings”
e1“cuttings of pea”
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See all 37 papers →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.