Abstract
Abstract Treatment with 6‐benzylaminopurine (6‐BAP; 10 −5 g/ml) accelerates the growth of detached cucumber cotyledons ( Cucumis sativas L.), primarily through an increased water uptake by the tissues. A comparative study of pigment composition and ultrastructure in 6‐BAP treated and untreated cotyledons shows that cytokinin, in the presence of light, accelerates the transformation of etioplasts into chloroplasts. 6‐BAP also enhances the synthesis of membrane precursors as indicated by the formation of a dense prolamellar body and by the persistence of a pseudo‐cristalline structure in 6‐BAP treated material. Stimulation of biosynthetic activity by cytokinin leads simultaneously to an increase in the rate of the pigment synthesis and to an acceleration in the building of the lamellar system. Furthermore, chloroplasts of 6‐BAP treated cotyledons show abnormal features such as a striking increase in the number of thylacoids per granum and a poor development of the intergranal system.
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Claims 8
Claim · model-written summary
6‐BAP accelerated detached cucumber cotyledon growth.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- 6‐benzylaminopurine (6‐BAP; 10 −5 g/ml)e0
- Outcome
- growth of detached cucumber cotyledonse0
- Direction
- acceleratese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 6‐benzylaminopurine (6‐BAP; 10 −5 g/ml) accelerates the growth of detached cucumber cotyledons ( Cucumis sativas L.)”
Claim · model-written summary
6‐BAP increased water uptake by cucumber cotyledons.
Not reportedComparator
Verbatim
e0“primarily through an increased water uptake by the tissues”
t0“6‐benzylaminopurine sur la différenciation plastidiale dans les cotylédons de concombre”
Claim · model-written summary
Cytokinin accelerated etioplast-to-chloroplast transformation in light.
- Taxon
- concombret0
- Treatment
- cytokinine0
- Outcome
- transformation of etioplasts into chloroplastse0
- Direction
- acceleratese0
- Qualifier
- in the presence of lighte0
Not reportedComparator
Verbatim
e0“cytokinin, in the presence of light, accelerates the transformation of etioplasts into chloroplasts”
t0“concombre”
Claim · model-written summary
6‐BAP enhanced membrane-precursor synthesis, indicated by a dense prolamellar body and persistent pseudo‐cristalline structure.
Not reportedComparator
Verbatim
e0“6‐BAP also enhances the synthesis of membrane precursors as indicated by the formation of a dense prolamellar body and by the persistence of a pseudo‐cristalline structure in 6‐BAP treated material”
t0“concombre”
Claim · model-written summary
Cytokinin increased pigment synthesis rate.
Not reportedComparator
Verbatim
e0“Stimulation of biosynthetic activity by cytokinin leads simultaneously to an increase in the rate of the pigment synthesis and to an acceleration in the building of the lamellar system”
t0“concombre”
Claim · model-written summary
Cytokinin accelerated lamellar system development.
Not reportedComparator
Verbatim
e0“Stimulation of biosynthetic activity by cytokinin leads simultaneously to an increase in the rate of the pigment synthesis and to an acceleration in the building of the lamellar system”
t0“concombre”
Claim · model-written summary
6‐BAP-treated cotyledon chloroplasts had more thylacoids per granum.
Not reportedComparator
Verbatim
e0“chloroplasts of 6‐BAP treated cotyledons show abnormal features such as a striking increase in the number of thylacoids per granum”
t0“concombre”
Claim · model-written summary
6‐BAP-treated cotyledon chloroplasts had poor intergranal system development.
Not reportedComparator
Verbatim
e0“chloroplasts of 6‐BAP treated cotyledons show abnormal features such as a striking increase in the number of thylacoids per granum and a poor development of the intergranal system”
t0“concombre”
The same questions in other papers
N-benzyladenine · growth · Cucumis sativus (cucumber)Results differ
29 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
30 papers more in this group
See all 34 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.