Abstract
SUMMARY Net photosynthesis of 5‐week‐old tomato plants (Lycopersicon lycopersicum L. cv. Abunda), was measured in clean air or with NO fumigation, for five consecutive days under simulated winter glasshouse conditions: temperature 22 °C, VPD 04 kPa, irradiance 30 W m −2 and daylength 8–9 h. NO concentrations applied were 0 or 1 μl 1 −1 in combination with CO, concentrations of 350 or 1000 μl −1 . A reduction in net photosynthesis due to NO became apparent on the third day of measurement. On the fifth day this reduction was 38%, of the control at 350 μl −1 CO 2 and 24%, at 1000 μl −1 CO 2 . The increase in photosynthesis due to CO, enrichment was initially 40%; this effect was strongly reduced after 5 d in the presence of NO. Plants did not recover in the dark after the daily fumigation treatment, the level to which photosynthesis was reduced at the end of the day being the level at which it started the next day. The decrease in photosynthesis could not be explained by an increased stomatal resistance, and the plants did not show visible symptoms of injury. Practical implications of the results are discussed.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Nitric oxide reduced tomato net photosynthesis from the third day.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- NOe0
- Outcome
- net photosynthesise0
- Direction
- reductione0
- Qualifier
- third day of measuremente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A reduction in net photosynthesis due to NO became apparent on the third day of measurement.”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
Claim · model-written summary
On day five nitric oxide reduced photosynthesis by 38% of control at 350 μl −1 CO 2.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NOe1
- Outcome
- net photosynthesise1
- Direction
- reductione0
- Value
- 38%e0
- Qualifier
- 350 μl −1 CO 2e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the fifth day this reduction was 38%, of the control at 350 μl −1 CO 2 and 24%, at 1000 μl −1 CO 2 .”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
e1“A reduction in net photosynthesis due to NO became apparent on the third day of measurement.”
Claim · model-written summary
On day five nitric oxide reduced photosynthesis by 24% at 1000 μl −1 CO 2.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NOe1
- Outcome
- net photosynthesise1
- Direction
- reductione0
- Value
- 24%e0
- Qualifier
- 1000 μl −1 CO 2e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the fifth day this reduction was 38%, of the control at 350 μl −1 CO 2 and 24%, at 1000 μl −1 CO 2 .”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
e1“A reduction in net photosynthesis due to NO became apparent on the third day of measurement.”
Claim · model-written summary
CO 2 enrichment initially increased tomato photosynthesis by 40%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- CO, enrichmente0
- Outcome
- photosynthesise0
- Direction
- increasee0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in photosynthesis due to CO, enrichment was initially 40%”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
Claim · model-written summary
Nitric oxide strongly reduced the photosynthetic benefit of CO 2 enrichment after five days.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NOe0
- Outcome
- photosynthesise1
- Direction
- reducede0
- Qualifier
- after 5 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this effect was strongly reduced after 5 d in the presence of NO.”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
e1“A reduction in net photosynthesis due to NO became apparent on the third day of measurement.”
Claim · model-written summary
Tomato plants did not recover photosynthesis in darkness after daily fumigation.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- photosynthesise0
- Direction
- did not recovere0
- Qualifier
- in the dark after the daily fumigation treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants did not recover in the dark after the daily fumigation treatment, the level to which photosynthesis was reduced at the end of the day being the level at which it started the next day.”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
Claim · model-written summary
Increased stomatal resistance did not explain the decline in photosynthesis.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- decrease in photosynthesise0
- Qualifier
- could not be explained by an increased stomatal resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in photosynthesis could not be explained by an increased stomatal resistance”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
Claim · model-written summary
Tomato plants showed no visible injury symptoms.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- did not show visible symptoms of injurye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plants did not show visible symptoms of injury.”
t0“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
t1“tomato (Lycopersicon lycopersicum L. cv. Abunda)”
The same questions in other papers
nitric oxide · physiology: photosynthesis · Solanum lycopersicum (tomato)Results differ
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.