Abstract
BUWALDA F., STULEN I. & DE KOK L.J. 2000. Effects of light and atmospheric H2S on amino acid composition in spinach leaves. Phyton (Horn, Austria) 40 (3): (15) (19). The effect of fumigation with 0.25 \x I H2S on changes in the composition of the free amino acid pool showed a consistent decrease in serine, precursor for cysteine synthesis, in the light and to a lesser extent in the dark. Comparison of the serine data with data on thiol level, from experiments performed under the same experimental conditions, shows that the decrease in serine is of the same order of magnitude as the increase in thiols over the same period. This suggests that the decline in serine level when plants are fumigated with H2S is the result of a drain of serine for thiol synthesis.
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Claims 3
Claim · model-written summary
H2S fumigation consistently decreased serine in spinach leaves, more in the light than in the dark.
- Taxon
- spinach
Spinacia oleraceat0 - Treatment
- fumigated with H2Se2
- Outcome
- serinee1
- Direction
- decreasee1
- Qualifier
- in the light and to a lesser extent in the darke1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spinach leaves”
e1“showed a consistent decrease in serine, precursor for cysteine synthesis, in the light and to a lesser extent in the dark”
e2“when plants are fumigated with H2S”
Claim · model-written summary
The decrease in serine was of the same order of magnitude as the increase in thiols over the same period.
- Taxon
- spinachSpinacia oleraceat0
- Outcome
- decrease in serinee3
- Qualifier
- of the same order of magnitude as the increase in thiols over the same periode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spinach leaves”
e3“the decrease in serine is of the same order of magnitude as the increase in thiols over the same period”
Claim · model-written summary
The serine decline is suggested to result from a drain of serine for thiol synthesis under H2S fumigation.
- Taxon
- spinachSpinacia oleraceat0
- Treatment
- fumigated with H2Se4
- Outcome
- decline in serine levele4
- Qualifier
- a drain of serine for thiol synthesise4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spinach leaves”
e4“the decline in serine level when plants are fumigated with H2S is the result of a drain of serine for thiol synthesis”