Abstract
Pigment contents of chloroplasts and net photosynthetic rate were dramatically reduced in maize leaves suffering from iron deficiency. However, the reduction in photosynthesis was probably not caused by decreased contents of chlorophylls and carotenoids and by photon absorption; the primary limiting factor for photosynthesis may rather be the decrease of electron transport activity in photosystem 1. Iron-deficient leaves suffered serious acceptor-side photoinhibition, and more than 60 % of absorbed photons were dissipated, while less than 40 % was used in photochemical reaction. Thermal energy dissipation depending on xanthophyll cycle and D1 protein turnover was enhanced when acceptor-side photoinhibition occurred in iron-deficient maize leaves.
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Claims 7
Claim · model-written summary
Iron deficiency dramatically reduced chloroplast pigment content.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pigment contents of chloroplasts and net photosynthetic rate were dramatically reduced in maize leaves suffering from iron deficiency.”
Claim · model-written summary
Iron deficiency dramatically reduced net photosynthesis.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pigment contents of chloroplasts and net photosynthetic rate were dramatically reduced in maize leaves suffering from iron deficiency.”
Claim · model-written summary
Authors suggest lower photosynthesis was chiefly limited by decreased photosystem 1 electron transport activity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the primary limiting factor for photosynthesis may rather be the decrease of electron transport activity in photosystem 1”
t0“maize leaves”
Claim · model-written summary
Iron-deficient leaves experienced serious acceptor-side photoinhibition.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron-deficient leaves suffered serious acceptor-side photoinhibition”
t0“maize leaves”
Claim · model-written summary
More than 60 % of absorbed photons were dissipated in iron-deficient leaves.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more than 60 % of absorbed photons were dissipated”
t0“maize leaves”
Claim · model-written summary
Less than 40 % of absorbed photons supported photochemical reaction.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less than 40 % was used in photochemical reaction”
t0“maize leaves”
Claim · model-written summary
Thermal dissipation dependent on xanthophyll cycling and D1 turnover was enhanced during photoinhibition.
- Gene
- D1 proteine0
- Outcome
- Thermal energy dissipatione0
- Direction
- enhancede0
- Qualifier
- when acceptor-side photoinhibition occurrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thermal energy dissipation depending on xanthophyll cycle and D1 protein turnover was enhanced when acceptor-side photoinhibition occurred in iron-deficient maize leaves.”
The same questions in other papers
iron atom · physiology: pigments · Zea mays (maize)Results differ
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This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- no effect
- negative
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8 papers in the same direction as this paper · 1 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- no effect
- positive
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See all 10 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.