Abstract
Kinetin and auxin when applied to excised segments of wheat coleoptiles bring about changes in chloroplast structure and chlorophyll content of parenchymatous cells. Auxin (IAA) alone at a concentration of 10-5M stimulated the elongation (growth), but the chloroplast membrane system was less developed and the chlorophyll content was lowest in comparison with control and other variants. Kinetin (KIN) exhibited various effects depending on the concentration used. 10-6M KIN somehow stimulated the elongation and enhanced the amount of grana coming to one chloroplast section, but the individual grana were relatively small and the chlorophyll content a little higher than in the control. On the other hand 10-5M KIN which did not promote the elongation of wheat coleoptiles, had the maximum stimulatory effect on the chloroplast membrane system, especially on the occurrence of large grana, and the chlorophyll content was highest in comparison with the other variants. The occurrence of starch grains in chloroplasts was lower than in the other variants. The effect of a joint treatment of KIN and IAA did not exceed that of KIN (10-5M) alone. Thus the development of chloroplasts and the accumulation of chlorophyll in wheat coleoptiles are stimulated by the concentration of KIN which does not promote the elongation of coleoptiles.
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Claims 11
Claim · model-written summary
IAA at 10-5M stimulated coleoptile elongation.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Auxin (IAA) alone at a concentration of 10-5Me0
- Outcome
- elongation (growth)e0
- Direction
- stimulatede0
- Comparator
- control and other variantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Auxin (IAA) alone at a concentration of 10-5M stimulated the elongation (growth), but the chloroplast membrane system was less developed and the chlorophyll content was lowest in comparison with control and other variants.”
t0“wheat”
Claim · model-written summary
IAA at 10-5M produced less developed chloroplast membranes and the lowest chlorophyll content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Auxin (IAA) alone at a concentration of 10-5Me0
- Outcome
- chloroplast membrane system was less developed and the chlorophyll content was loweste0
- Direction
- less developede0
- Comparator
- control and other variantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Auxin (IAA) alone at a concentration of 10-5M stimulated the elongation (growth), but the chloroplast membrane system was less developed and the chlorophyll content was lowest in comparison with control and other variants.”
t0“wheat”
Claim · model-written summary
KIN at 10-6M stimulated elongation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 10-6M KINe0
- Outcome
- elongatione0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“10-6M KIN somehow stimulated the elongation”
t0“wheat”
Claim · model-written summary
KIN at 10-6M increased grana per chloroplast section.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 10-6M KINe0
- Outcome
- amount of grana coming to one chloroplast sectione0
- Direction
- enhancede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“10-6M KIN somehow stimulated the elongation and enhanced the amount of grana coming to one chloroplast section, but the individual grana were relatively small and the chlorophyll content a little higher than in the control.”
t0“wheat”
Claim · model-written summary
KIN at 10-6M produced relatively small grana.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- individual grana were relatively smalle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the individual grana were relatively small”
t0“wheat”
Claim · model-written summary
KIN at 10-6M made chlorophyll content a little higher than control.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 10-6M KINe0
- Outcome
- chlorophyll contente0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“10-6M KIN somehow stimulated the elongation and enhanced the amount of grana coming to one chloroplast section, but the individual grana were relatively small and the chlorophyll content a little higher than in the control.”
t0“wheat”
Claim · model-written summary
KIN at 10-5M did not promote elongation.
Not reportedTaxonComparator
Verbatim
e0“10-5M KIN which did not promote the elongation of wheat coleoptiles”
Claim · model-written summary
KIN at 10-5M maximally stimulated chloroplast membranes, especially large grana.
Not reportedTaxonComparator
Verbatim
e0“10-5M KIN which did not promote the elongation of wheat coleoptiles, had the maximum stimulatory effect on the chloroplast membrane system, especially on the occurrence of large grana”
Claim · model-written summary
KIN at 10-5M gave the highest chlorophyll content among variants.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- chlorophyll contente0
- Direction
- higheste0
- Comparator
- other variantse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the chlorophyll content was highest in comparison with the other variants.”
t0“wheat”
Claim · model-written summary
Starch grains occurred less often in chloroplasts under 10-5M KIN.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- occurrence of starch grains in chloroplastse0
- Direction
- lowere0
- Comparator
- other variantse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The occurrence of starch grains in chloroplasts was lower than in the other variants.”
t0“wheat”
Claim · model-written summary
Joint KIN and IAA treatment did not exceed 10-5M KIN alone.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- joint treatment of KIN and IAAe0
- Outcome
- effecte0
- Direction
- did not exceede0
- Comparator
- KIN (10-5M) alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of a joint treatment of KIN and IAA did not exceed that of KIN (10-5M) alone.”
t0“wheat”
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See all 109 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.