Abstract
Abstract Potato microtubers turn green within a few days when kept in the light. The initial phases in this process were observed as early as 12 hours after the onset of illumination. The changes included a pronounced increase in chlorophyll and carotenoid concentrations, accompanied by changes in the protein pattern and in the transformation of amyloplasts and leucoplasts to chloroplasts. The bleaching herbicides amitrole and norflurazon inhibited the synthesis of carotenoids in the illuminated potato microtubers. However, amitrole only delayed greening and an increase in chlorophyll and carotenoid levels became visible as late as four days after the onset of illumination, and the LHC II protein of the photosynthetic membrane was not detected before the seventh day of light exposure. Norflurazon, in contrast, acted as a stronger inhibitor, and microtuber tissues stayed yellowish throughout the experiment. The concentrations of both carotenoids and chlorophylls were very low in tissues treated with this herbicide. The LHC II protein could not be detected after a seven-day light exposure and the plastids were damaged, small in size, without normal thylakoids and with numerous plastoglobules.
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Claims 11
Claim · model-written summary
Illuminated potato microtubers green within a few days, with initial changes by 12 hours.
- Taxon
- Potato
Solanum tuberosume0 - Organ / stage
- microtuberse0
- Outcome
- microtubers turn greene0
- Qualifier
- as early as 12 hours after the onset of illuminatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato microtubers turn green within a few days when kept in the light. The initial phases in this process were observed as early as 12 hours after the onset of illumination.”
Claim · model-written summary
Illumination increased chlorophyll and carotenoid concentrations in potato microtubers.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- chlorophyll and carotenoid concentrationse0
- Direction
- pronounced increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes included a pronounced increase in chlorophyll and carotenoid concentrations”
t0“Potato”
Claim · model-written summary
Illumination changed protein patterns and transformed potato amyloplasts and leucoplasts into chloroplasts.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- changes in the protein pattern and in the transformation of amyloplasts and leucoplasts to chloroplastse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accompanied by changes in the protein pattern and in the transformation of amyloplasts and leucoplasts to chloroplasts.”
t0“Potato”
Claim · model-written summary
Amitrole inhibited carotenoid synthesis in illuminated potato microtubers.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- microtuberse0
- Treatment
- amitrolee0
- Outcome
- synthesis of carotenoidse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bleaching herbicides amitrole and norflurazon inhibited the synthesis of carotenoids in the illuminated potato microtubers.”
Claim · model-written summary
Norflurazon inhibited carotenoid synthesis in illuminated potato microtubers.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- microtuberse0
- Treatment
- norflurazone0
- Outcome
- synthesis of carotenoidse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bleaching herbicides amitrole and norflurazon inhibited the synthesis of carotenoids in the illuminated potato microtubers.”
Claim · model-written summary
Amitrole delayed potato microtuber greening until four days after illumination.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- amitrolee0
- Outcome
- greeninge0
- Direction
- delayede0
- Qualifier
- as late as four days after the onset of illuminatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“amitrole only delayed greening and an increase in chlorophyll and carotenoid levels became visible as late as four days after the onset of illumination”
t0“Potato”
Claim · model-written summary
Amitrole delayed LHC II detection until the seventh day of light.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- LHC II protein of the photosynthetic membranee0
- Qualifier
- not detected before the seventh day of light exposuree0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the LHC II protein of the photosynthetic membrane was not detected before the seventh day of light exposure.”
t0“Potato”
Claim · model-written summary
Norflurazon kept potato microtuber tissues yellowish throughout the experiment.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Norflurazone0
- Outcome
- microtuber tissues stayed yellowishe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Norflurazon, in contrast, acted as a stronger inhibitor, and microtuber tissues stayed yellowish throughout the experiment.”
t0“Potato”
Claim · model-written summary
Norflurazon-treated tissues had very low carotenoid and chlorophyll concentrations.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- this herbicidee0
- Outcome
- concentrations of both carotenoids and chlorophyllse0
- Direction
- very lowe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of both carotenoids and chlorophylls were very low in tissues treated with this herbicide.”
t0“Potato”
Claim · model-written summary
Norflurazon prevented detectable LHC II after seven days of light.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- LHC II protein could not be detectede0
- Qualifier
- after a seven-day light exposuree0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The LHC II protein could not be detected after a seven-day light exposure”
t0“Potato”
Claim · model-written summary
Norflurazon-treated plastids were damaged, small, lacked normal thylakoids and had numerous plastoglobules.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- plastids were damaged, small in size, without normal thylakoids and with numerous plastoglobulese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plastids were damaged, small in size, without normal thylakoids and with numerous plastoglobules.”
t0“Potato”
The same questions in other papers
herbicide · physiology: pigments · Solanum tuberosum (potato)Positive and negative results
2 in the opposite direction
- 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.